# zkLink Nova Markdown version of https://ethbeat.org/layer2s/projects/zklinknova ## Summary **Warning:** Critical contracts can be upgraded by an EOA which could result in the loss of all funds. **Warning:** Why is the project listed in others? There is no data availability bridge. Consequence: projects without a data availability bridge fully rely on single entities (the sequencer) to honestly rely available data roots on Ethereum. A malicious sequencer can collude with the proposer to finalize an unavailable state, which can cause loss of funds. Learn more about the [recategorisation](https://medium.com/l2beat/framework-update-l2-projects-recategorisation-5d43b0d1fe50). - Total Value Secured: No data - Past day UOPS: <0.01 (+37.0% compared to seven days ago) - Type: Other - Purposes: Universal, Interoperability - Host chain: Linea - Chain ID: 810180 - Risks shown: combined with host chain Linea; Risk analysis also lists each separately ### Risks - Sequencer failure: No mechanism (sentiment: bad) - State validation: Validity proofs (sentiment: good) - Data availability: External (sentiment: bad) - Exit window: None (sentiment: bad) - Proposer failure: Cannot withdraw (sentiment: bad) ### About zkLink Nova is a Layer 3 zkEVM Validium network leveraging ZK Stack that allows for scattered assets across Ethereum Layer 2s to be aggregated for interoperable trade and transactions. ### Links - Website: https://zklink.io, https://zk.link - Bridge: https://portal.zklink.io, https://zklink.io/merge, https://app.zklink.io - Docs: https://docs.zklink.io - Explorer: https://explorer.zklink.io - Repository: https://github.com/zkLinkProtocol - Social: https://blog.zk.link, https://x.com/zkLink_Official, https://discord.com/invite/SFrUD5gysj, https://t.me/zkLinkorg - Contracts explorer (Disco): https://disco.ethbeat.org/ui/p/zklinknova ### Badges - EVM: This project uses the Ethereum Virtual Machine to run its smart contracts and supports the Solidity programming language - Data Availability Committee: There is a Data Availability Committee that provides/attests to data availability - Built on top of Linea: The project has Linea as its host chain ## Activity The interactive activity chart is shown on [the HTML page](https://ethbeat.org/layer2s/projects/zklinknova#activity). - [Activity chart (JSON)](https://ethbeat.org/api/scaling/activity/zklinknova) ## Risk summary There are 5 additional risks coming from the host chain [Linea](https://ethbeat.org/layer2s/projects/linea) ### Funds can be stolen if 1. a contract receives a malicious code upgrade. There is no delay on code upgrades (CRITICAL). ### Funds can be lost if 2. the external data becomes unavailable (CRITICAL), 3. the operator relays invalid messages using the fast path (CRITICAL), 4. the canonical bridges of the secondary chains are compromised. ### Users can be censored if 5. the operator refuses to include their transactions. ### MEV can be extracted if 6. the operator exploits their centralized position and frontruns user transactions. ## Risk analysis The L3 risks depend on the individual properties of L3 and those of the host chain combined. **Warning:** Critical contracts can be upgraded by an EOA which could result in the loss of all funds. | | Sequencer failure | State validation | Data availability | Exit window | Proposer failure | | --- | --- | --- | --- | --- | --- | | Linea (L2) | No mechanism (sentiment: bad) | Validity proofs (SN) (sentiment: good) | Onchain (sentiment: good) | None (sentiment: bad) | Cannot withdraw (sentiment: bad) | | zkLink Nova (L3, individual) | Enqueue via L2 (sentiment: warning) | Validity proofs (ST, SN) (sentiment: good) | External (sentiment: bad) | None (sentiment: bad) | Cannot withdraw (sentiment: bad) | | zkLink Nova (L3, combined) | No mechanism (sentiment: bad) | Validity proofs (sentiment: good) | External (sentiment: bad) | None (sentiment: bad) | Cannot withdraw (sentiment: bad) | ### L3 combined risks The information below reflects combined L2 & L3 risks. #### Sequencer failure No mechanism (sentiment: bad) There is no mechanism to have transactions be included if the sequencer is down or censoring. #### State validation Validity proofs (sentiment: good) Zero knowledge cryptography is used to ensure state correctness. Proofs are first verified on Linea and finally on Ethereum. #### Data availability External (sentiment: bad) Proof construction and state derivation rely fully on data that is ultimately NOT published on Ethereum. #### Exit window None (sentiment: bad) There is no window for users to exit in case of an unwanted upgrade since contracts are instantly upgradable. #### Proposer failure Cannot withdraw (sentiment: bad) Only the whitelisted proposers can publish state roots on L1, so in the event of failure the withdrawals are frozen. ## Data availability ### Data is not stored on chain The transaction data is not recorded on the Ethereum main chain. **Risks** - Funds can be lost if the external data becomes unavailable (CRITICAL). ## Upgrades & Governance ### Past upgrades The metrics include upgrades on the currently used proxy contracts. Historical proxy contracts and changes of such are not included. - Count of upgrades: 50 - Last upgrade: 1y 5mo ago - Avg upgrade interval: 11mo 19d - 2025-05-14 03:35 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0xc126f92dc36c78ecb4aac331b0cc9e92ba1693d8b1a83981f4cb789cd1c55a6b](https://lineascan.build/tx/0xc126f92dc36c78ecb4aac331b0cc9e92ba1693d8b1a83981f4cb789cd1c55a6b), implementations: [0x6a91814E3481967Ea350398cf748aB845DF43c05](https://lineascan.build/address/0x6a91814E3481967Ea350398cf748aB845DF43c05#code) ([diff](https://disco.ethbeat.org/diff/linea:0xB76Ee80B3344D86580C990638bDE1915E58d2c6f/linea:0x6a91814E3481967Ea350398cf748aB845DF43c05)), [0xF3d053C29666D653Fa8629190579844BffE9FB92](https://lineascan.build/address/0xF3d053C29666D653Fa8629190579844BffE9FB92#code) ([diff](https://disco.ethbeat.org/diff/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92)), [0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e](https://lineascan.build/address/0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e#code) ([diff](https://disco.ethbeat.org/diff/linea:0x495220D99B432b0de3e1F1fe206AA0E26A051C63/linea:0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e)), [0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488](https://lineascan.build/address/0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488#code) ([diff](https://disco.ethbeat.org/diff/linea:0x9f2E11F287733c4EF5B9A6ED923b780c28062727/linea:0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488)) - 2024-06-10 13:41 UTC, deployment of [ScrollL1ERC20Bridge](https://scrollscan.com/address/0x3C7c0ebFCD5786ef48df5ed127cdDEb806db976c#code): transaction [0xd2775129688587d97fff37813acd0581f68fdfe7f1a52b36a779e4ef9021c3fe](https://scrollscan.com/tx/0xd2775129688587d97fff37813acd0581f68fdfe7f1a52b36a779e4ef9021c3fe), implementations: [0x067c7126a83560Ed2Fc345d25799F696B7Ea47Ca](https://scrollscan.com/address/0x067c7126a83560Ed2Fc345d25799F696B7Ea47Ca#code) - 2024-06-10 07:33 UTC, deployment of [ScrollL1Gateway](https://etherscan.io/address/0x986c905087a663db3C81ad319b94c1E9dd388e92#code): transaction [0x380f252111050403dc380bc5b2b0f894555743e4bcec985e41602b9abb40e2de](https://etherscan.io/tx/0x380f252111050403dc380bc5b2b0f894555743e4bcec985e41602b9abb40e2de), implementations: [0xdB97dBF9c0A20aA8B4787563B6bE04e83E7ECDFB](https://etherscan.io/address/0xdB97dBF9c0A20aA8B4787563B6bE04e83E7ECDFB#code) - 2024-06-10 07:30 UTC, deployment of [ScrollL2Gateway](https://scrollscan.com/address/0xd8428A59B60Df2d81514D429D57DF23293f1bCe7#code): transaction [0xa45f6d61d7c5c041f10950e9448a39a9fbf490d2fcb3155ff9add77b43cfc0c6](https://scrollscan.com/tx/0xa45f6d61d7c5c041f10950e9448a39a9fbf490d2fcb3155ff9add77b43cfc0c6), implementations: [0xe469c1330cEEcC375fE17E7D649eA270186D344F](https://scrollscan.com/address/0xe469c1330cEEcC375fE17E7D649eA270186D344F#code) - 2024-06-10 07:26 UTC, deployment of [ScrollzkLink](https://scrollscan.com/address/0x119B9459D9119D07c23aD06778AeaBec804Fd1a2#code): transaction [0x9d2ffc640100c25deacf7308dafb540b000bfc8a3d6fa8dab19ec9150ce38434](https://scrollscan.com/tx/0x9d2ffc640100c25deacf7308dafb540b000bfc8a3d6fa8dab19ec9150ce38434), implementations: [0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D](https://scrollscan.com/address/0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D#code) - 2024-05-22 15:53 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x63cc92d7d7f235ed4094027a72b93973cb159c4cca509f669668032a0b6d9e96](https://lineascan.build/tx/0x63cc92d7d7f235ed4094027a72b93973cb159c4cca509f669668032a0b6d9e96), implementations: [0xB76Ee80B3344D86580C990638bDE1915E58d2c6f](https://lineascan.build/address/0xB76Ee80B3344D86580C990638bDE1915E58d2c6f#code) ([diff](https://disco.ethbeat.org/diff/linea:0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC/linea:0xB76Ee80B3344D86580C990638bDE1915E58d2c6f)), [0xF3d053C29666D653Fa8629190579844BffE9FB92](https://lineascan.build/address/0xF3d053C29666D653Fa8629190579844BffE9FB92#code) ([diff](https://disco.ethbeat.org/diff/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92)), [0x495220D99B432b0de3e1F1fe206AA0E26A051C63](https://lineascan.build/address/0x495220D99B432b0de3e1F1fe206AA0E26A051C63#code) ([diff](https://disco.ethbeat.org/diff/linea:0x253AbB100Dd2606e73E41A26D03269fd13de5548/linea:0x495220D99B432b0de3e1F1fe206AA0E26A051C63)), [0x9f2E11F287733c4EF5B9A6ED923b780c28062727](https://lineascan.build/address/0x9f2E11F287733c4EF5B9A6ED923b780c28062727#code) ([diff](https://disco.ethbeat.org/diff/linea:0x268F47D6058c3122131e2f8Df1B634793e4B0a7c/linea:0x9f2E11F287733c4EF5B9A6ED923b780c28062727)) - 2024-05-03 09:09 UTC, upgrade of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7](https://explorer.mantle.xyz/tx/0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7), implementations: [0x0C04046546C46652969Aa9eB4BFB758cFDf1e821](https://explorer.mantle.xyz/address/0x0C04046546C46652969Aa9eB4BFB758cFDf1e821#code) ([diff](https://disco.ethbeat.org/diff/manta:0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585/mantle:0x0C04046546C46652969Aa9eB4BFB758cFDf1e821)) - 2024-05-03 09:09 UTC, upgrade of [MantleL2Gateway](https://explorer.mantle.xyz/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7](https://explorer.mantle.xyz/tx/0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7), implementations: [0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D](https://explorer.mantle.xyz/address/0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D#code) ([diff](https://disco.ethbeat.org/diff/manta:0x50efC7f1290479cb879473512D89fDC80B726211/mantle:0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D)) - 2024-04-23 02:48 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x72a67f79ae66e93c75e22e06ccc384e73bcf1be4dfb587597aee5467c7f2bddf](https://lineascan.build/tx/0x72a67f79ae66e93c75e22e06ccc384e73bcf1be4dfb587597aee5467c7f2bddf), implementations: [0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC](https://lineascan.build/address/0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC#code) ([diff](https://disco.ethbeat.org/diff/linea:0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503/linea:0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC)), [0xF3d053C29666D653Fa8629190579844BffE9FB92](https://lineascan.build/address/0xF3d053C29666D653Fa8629190579844BffE9FB92#code) ([diff](https://disco.ethbeat.org/diff/linea:0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92)), [0x253AbB100Dd2606e73E41A26D03269fd13de5548](https://lineascan.build/address/0x253AbB100Dd2606e73E41A26D03269fd13de5548#code) ([diff](https://disco.ethbeat.org/diff/linea:0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA/linea:0x253AbB100Dd2606e73E41A26D03269fd13de5548)), [0x268F47D6058c3122131e2f8Df1B634793e4B0a7c](https://lineascan.build/address/0x268F47D6058c3122131e2f8Df1B634793e4B0a7c#code) ([diff](https://disco.ethbeat.org/diff/linea:0x1b19287CE898217D937571EABa97ec50F27d1206/linea:0x268F47D6058c3122131e2f8Df1B634793e4B0a7c)) - 2024-04-22 02:31 UTC, upgrade of [MantazkLink](https://pacific-explorer.manta.network/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x469dbeecfffe82b89157782a568b255280c6058eb429a32feff865321c640339](https://pacific-explorer.manta.network/tx/0x469dbeecfffe82b89157782a568b255280c6058eb429a32feff865321c640339), implementations: [0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585](https://pacific-explorer.manta.network/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code) ([diff](https://disco.ethbeat.org/diff/mantle:0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6/manta:0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585)) - 2024-04-22 02:31 UTC, upgrade of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0xecf1785a348ae45261abf6f4bc82163701840e4740a5c104f036305677d800e8](https://explorer.mantle.xyz/tx/0xecf1785a348ae45261abf6f4bc82163701840e4740a5c104f036305677d800e8), implementations: [0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6](https://explorer.mantle.xyz/address/0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6#code) ([diff](https://disco.ethbeat.org/diff/manta:0xe89635a7339bf46198f76b17bCFdAD977699cc13/mantle:0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6)) - 2024-04-22 02:30 UTC, upgrade of [BlastzkLink](https://blastscan.io/address/0x29BA92Fe724beD5c5EBfd0099F2F64a6DC5078FD#code): transaction [0xb0fd8cd86cd093af8f866f6fd599067fc5d202d36fd1f4967bda245c41ee16aa](https://blastscan.io/tx/0xb0fd8cd86cd093af8f866f6fd599067fc5d202d36fd1f4967bda245c41ee16aa), implementations: [0xDe4Be50Bfe9503180231357Eab19d709F8F73C66](https://blastscan.io/address/0xDe4Be50Bfe9503180231357Eab19d709F8F73C66#code) ([diff](https://disco.ethbeat.org/diff/blastmainnet:0x35E808DB3A37eec12ecF6A22Cc951C9F867f1D64/blastmainnet:0xDe4Be50Bfe9503180231357Eab19d709F8F73C66)) - 2024-04-22 02:29 UTC, upgrade of [ArbitrumzkLink](https://arbiscan.io/address/0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A#code): transaction [0x22f2009bf7f9c0cec80080ccd77d22c1bcf8e318cc2d2a442cae078746f19a6e](https://arbiscan.io/tx/0x22f2009bf7f9c0cec80080ccd77d22c1bcf8e318cc2d2a442cae078746f19a6e), implementations: [0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305](https://arbiscan.io/address/0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305#code) ([diff](https://disco.ethbeat.org/diff/arb1:0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e/arb1:0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305)) - 2024-04-22 02:28 UTC, upgrade of [ErazkLink](https://explorer.zksync.io/address/0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A#code): transaction [0x35dad9f42bcd7e9c55385a3656325f94616498878f636e080dbd059f80618492](https://explorer.zksync.io/tx/0x35dad9f42bcd7e9c55385a3656325f94616498878f636e080dbd059f80618492), implementations: [0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E](https://explorer.zksync.io/address/0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E#code) ([diff](https://disco.ethbeat.org/diff/zksync:0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5/zksync:0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E)) - 2024-04-20 12:21 UTC, upgrade of [EthereumzkLink](https://etherscan.io/address/0x5fD9F73286b7E8683Bab45019C94553b93e015Cf#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7](https://etherscan.io/address/0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7#code) ([diff](https://disco.ethbeat.org/diff/eth:0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD/eth:0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7)) - 2024-04-20 12:21 UTC, upgrade of [EthereumL1Gateway](https://etherscan.io/address/0x83Bc7394738A7A084081aF22EEC0051908c0055c#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x65c7B3E1B877131986247B49474834b0347eF332](https://etherscan.io/address/0x65c7B3E1B877131986247B49474834b0347eF332#code) ([diff](https://disco.ethbeat.org/diff/eth:0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b/eth:0x65c7B3E1B877131986247B49474834b0347eF332)) - 2024-04-20 12:21 UTC, upgrade of [Arbitrator](https://etherscan.io/address/0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34](https://etherscan.io/address/0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34#code) ([diff](https://disco.ethbeat.org/diff/eth:0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a/eth:0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34)) - 2024-04-20 12:21 UTC, upgrade of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x59Ad3580c9e0992D474954327f5879AF5B3e4a22](https://etherscan.io/address/0x59Ad3580c9e0992D474954327f5879AF5B3e4a22#code) ([diff](https://disco.ethbeat.org/diff/eth:0x8915B1750f337342F2b6A2eF1BF12e279e3b497E/eth:0x59Ad3580c9e0992D474954327f5879AF5B3e4a22)) - 2024-04-20 12:21 UTC, upgrade of [BlastL1Gateway](https://etherscan.io/address/0x41FaF46Ca4Dfd912B65B66D29BdD432782BB1158#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x01334Df58feE28db184ae9D11467F38F7437FD80](https://etherscan.io/address/0x01334Df58feE28db184ae9D11467F38F7437FD80#code) ([diff](https://disco.ethbeat.org/diff/eth:0x1DFF9a84A7Df94084995cAE2feac4a31fBCf4c9E/eth:0x01334Df58feE28db184ae9D11467F38F7437FD80)) - 2024-04-18 13:24 UTC, upgrade of [BasezkLink](https://basescan.org/address/0xE473ce141b1416Fe526eb63Cf7433b7B8d7264Dd#code): transaction [0x6c9c54497c2950dfbedc2c1c5e77cfadb8381e95743c32a240d43605a7f8f2b4](https://basescan.org/tx/0x6c9c54497c2950dfbedc2c1c5e77cfadb8381e95743c32a240d43605a7f8f2b4), implementations: [0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388](https://basescan.org/address/0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388#code) ([diff](https://disco.ethbeat.org/diff/base:0x314bF0D901361F2e31A18cb3500bFD33aF51dE47/base:0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388)) - 2024-04-18 13:21 UTC, upgrade of [OptimismzkLink](https://optimistic.etherscan.io/address/0x46C8D02E93d5a03899dFa7Cf8A40A07589A3fA1b#code): transaction [0xc9ff607b3fb208f26fadc47cde08c41273c79039e1f7bf2c9f5313d4b3869107](https://optimistic.etherscan.io/tx/0xc9ff607b3fb208f26fadc47cde08c41273c79039e1f7bf2c9f5313d4b3869107), implementations: [0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E](https://optimistic.etherscan.io/address/0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E#code) ([diff](https://disco.ethbeat.org/diff/oeth:0xebdA7f097EF976e8E82FA11F05ef1906f3068105/oeth:0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E)) - 2024-04-04 06:41 UTC, upgrade of [BlastL1ERC20Bridge](https://blastscan.io/address/0x8Df0c2bA3916bF4789c50dEc5A79b2fc719F500b#code): transaction [0x319fa19f70ff861bf9b573f1cc6054d236dcb99dec620756e3f85d2c35c0040b](https://blastscan.io/tx/0x319fa19f70ff861bf9b573f1cc6054d236dcb99dec620756e3f85d2c35c0040b), implementations: [0xc24864769346073f5fEf0386A18734F0eF5503F5](https://blastscan.io/address/0xc24864769346073f5fEf0386A18734F0eF5503F5#code) ([diff](https://disco.ethbeat.org/diff/blastmainnet:0x4D7012d5C62c351804CCe49c2d7C09A401fD3deC/blastmainnet:0xc24864769346073f5fEf0386A18734F0eF5503F5)) - 2024-04-04 06:40 UTC, upgrade of [MantaL1ERC20Bridge](https://pacific-explorer.manta.network/address/0x44a65dc12865A1e5249b45b4868f32b0E37168FF#code): transaction [0x15196bbffee8d57f18df9fead80e6301e9468716eef250ffbc5822cd435dd4a1](https://pacific-explorer.manta.network/tx/0x15196bbffee8d57f18df9fead80e6301e9468716eef250ffbc5822cd435dd4a1), implementations: [0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c](https://pacific-explorer.manta.network/address/0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c#code) ([diff](https://disco.ethbeat.org/diff/manta:0x0d53cE63f3A72879d543ed6272A081308A731470/manta:0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c)) - 2024-04-04 06:39 UTC, upgrade of [BaseL1ERC20Bridge](https://basescan.org/address/0x80d12A78EfE7604F00ed07aB2f16F643301674D5#code): transaction [0xe6819dfc1ae0abb6a95ad6b8778ca1ad6eda78b48e4f9685819bb09df8b5c8c8](https://basescan.org/tx/0xe6819dfc1ae0abb6a95ad6b8778ca1ad6eda78b48e4f9685819bb09df8b5c8c8), implementations: [0xA89aa7e3D34516EAB7129E401215d5d1239Ce715](https://basescan.org/address/0xA89aa7e3D34516EAB7129E401215d5d1239Ce715#code) ([diff](https://disco.ethbeat.org/diff/base:0x413552461b0b2c13f117d885b52AaA2f23374B1D/base:0xA89aa7e3D34516EAB7129E401215d5d1239Ce715)) - 2024-04-04 06:27 UTC, upgrade of [MantleL1ERC20Bridge](https://explorer.mantle.xyz/address/0x62351b47e060c61868Ab7E05920Cb42bD9A5f2B2#code): transaction [0xed9f3f5842ead3da2348d8edfbcacf5bf0572cc53ec3443c5229c23845d63f9c](https://explorer.mantle.xyz/tx/0xed9f3f5842ead3da2348d8edfbcacf5bf0572cc53ec3443c5229c23845d63f9c), implementations: [0x7769C18828569692Dfb65affa0856533613ea458](https://explorer.mantle.xyz/address/0x7769C18828569692Dfb65affa0856533613ea458#code) ([diff](https://disco.ethbeat.org/diff/mantle:0xbfa352a683D82a04233Cc45AC1308621BA63283f/mantle:0x7769C18828569692Dfb65affa0856533613ea458)) - 2024-04-04 06:25 UTC, upgrade of [ArbitrumL1ERC20Bridge](https://arbiscan.io/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code): transaction [0x99c592973087e232fa0685460c1e5992ef3a5cd0d80e8c6739d738b08787bece](https://arbiscan.io/tx/0x99c592973087e232fa0685460c1e5992ef3a5cd0d80e8c6739d738b08787bece), implementations: [0x1202e0557A23531D09015C802e993d6423685FfB](https://arbiscan.io/address/0x1202e0557A23531D09015C802e993d6423685FfB#code) ([diff](https://disco.ethbeat.org/diff/arb1:0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c/arb1:0x1202e0557A23531D09015C802e993d6423685FfB)) - 2024-04-04 06:25 UTC, upgrade of [EraL1ERC20Bridge](https://explorer.zksync.io/address/0xaB3DDB86072a35d74beD49AA0f9210098ebf2D08#code): transaction [0x7886648572871a6eb12027c117e273d16ee8026b5f51c0b01b209c0218caf005](https://explorer.zksync.io/tx/0x7886648572871a6eb12027c117e273d16ee8026b5f51c0b01b209c0218caf005), implementations: [0xdBA32e62e929a7e2Fa65782F812416CA65208E40](https://explorer.zksync.io/address/0xdBA32e62e929a7e2Fa65782F812416CA65208E40#code) ([diff](https://disco.ethbeat.org/diff/zksync:0x022c9D356d6B020D3128de430458A28C7183a13d/zksync:0xdBA32e62e929a7e2Fa65782F812416CA65208E40)) - 2024-04-04 06:24 UTC, upgrade of [OptimismL1ERC20Bridge](https://optimistic.etherscan.io/address/0x5Bd51296423A9079b931414C1De65e7057326EaA#code): transaction [0x5154061f44b9d3baf51c0211c4a0126b47486e3e06d89006106034afd62e24f8](https://optimistic.etherscan.io/tx/0x5154061f44b9d3baf51c0211c4a0126b47486e3e06d89006106034afd62e24f8), implementations: [0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8](https://optimistic.etherscan.io/address/0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8#code) ([diff](https://disco.ethbeat.org/diff/oeth:0x683669E5B6cDc6636673a5f7ddB68E20812216F5/oeth:0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8)) - 2024-04-04 06:23 UTC, upgrade of [EthereumL1ERC20Bridge](https://etherscan.io/address/0xAd16eDCF7DEB7e90096A259c81269d811544B6B6#code): transaction [0xc9c60ef44c8cef2b33a3f0af91e3d064ea479d616c1aafd9d2535cc377be0382](https://etherscan.io/tx/0xc9c60ef44c8cef2b33a3f0af91e3d064ea479d616c1aafd9d2535cc377be0382), implementations: [0x3203E813930bD710043c1d899fE38dD359307352](https://etherscan.io/address/0x3203E813930bD710043c1d899fE38dD359307352#code) ([diff](https://disco.ethbeat.org/diff/eth:0xc271a8e9eB2b10FCDe1709D76de6681249669D2e/eth:0x3203E813930bD710043c1d899fE38dD359307352)) - 2024-04-03 12:30 UTC, upgrade of [LineaL1ERC20Bridge](https://lineascan.build/address/0x62cE247f34dc316f93D3830e4Bf10959FCe630f8#code): transaction [0x151e5e3496cc0cfa545a4515a036154bb172dea85ccafce5563b408a83793570](https://lineascan.build/tx/0x151e5e3496cc0cfa545a4515a036154bb172dea85ccafce5563b408a83793570), implementations: [0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A](https://lineascan.build/address/0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A#code) ([diff](https://disco.ethbeat.org/diff/linea:0xB8017A397E7844635c5a2750d0BEB2af97506461/linea:0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A)) - 2024-03-22 09:00 UTC, deployment of [BaseL1ERC20Bridge](https://basescan.org/address/0x80d12A78EfE7604F00ed07aB2f16F643301674D5#code): transaction [0xd9b67d7dc47832724dd1b7bdc7e734d949b55a7e329662ccc91016eeed6fb60a](https://basescan.org/tx/0xd9b67d7dc47832724dd1b7bdc7e734d949b55a7e329662ccc91016eeed6fb60a), implementations: [0x413552461b0b2c13f117d885b52AaA2f23374B1D](https://basescan.org/address/0x413552461b0b2c13f117d885b52AaA2f23374B1D#code) - 2024-03-22 08:24 UTC, deployment of [BaseL1Gateway](https://etherscan.io/address/0x4eEA93966AA5cd658225E0D43b665A5a491d2b7E#code): transaction [0x93767478c99ec84e15e69f2f18adb4fef4e1017c524c44088168d95d60d17419](https://etherscan.io/tx/0x93767478c99ec84e15e69f2f18adb4fef4e1017c524c44088168d95d60d17419), implementations: [0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518](https://etherscan.io/address/0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518#code) - 2024-03-22 08:23 UTC, deployment of [BaseL2Gateway](https://basescan.org/address/0x1054Ff8B3B7B9F68d2e55C4A42E8952332c69011#code): transaction [0xceb644026cf3c4c4f5c91e64352f5b2bceaaacc69e8f3c6a23591bf29fa16978](https://basescan.org/tx/0xceb644026cf3c4c4f5c91e64352f5b2bceaaacc69e8f3c6a23591bf29fa16978), implementations: [0x7f00134427437b2883F59EF3880597FDc836E356](https://basescan.org/address/0x7f00134427437b2883F59EF3880597FDc836E356#code) - 2024-03-22 08:21 UTC, deployment of [BasezkLink](https://basescan.org/address/0xE473ce141b1416Fe526eb63Cf7433b7B8d7264Dd#code): transaction [0xb135f489f7b7bcb2593e487ba1c07df4c6bb382b98f3ee1cb37a608715f7b180](https://basescan.org/tx/0xb135f489f7b7bcb2593e487ba1c07df4c6bb382b98f3ee1cb37a608715f7b180), implementations: [0x314bF0D901361F2e31A18cb3500bFD33aF51dE47](https://basescan.org/address/0x314bF0D901361F2e31A18cb3500bFD33aF51dE47#code) - 2024-03-22 08:18 UTC, deployment of [OptimismL1ERC20Bridge](https://optimistic.etherscan.io/address/0x5Bd51296423A9079b931414C1De65e7057326EaA#code): transaction [0x965f198c04e811f47221086ef6452f50af7e949ff2f5bb10125ba1a516999e44](https://optimistic.etherscan.io/tx/0x965f198c04e811f47221086ef6452f50af7e949ff2f5bb10125ba1a516999e44), implementations: [0x683669E5B6cDc6636673a5f7ddB68E20812216F5](https://optimistic.etherscan.io/address/0x683669E5B6cDc6636673a5f7ddB68E20812216F5#code) - 2024-03-22 07:31 UTC, deployment of [OptimismL1Gateway](https://etherscan.io/address/0x668e8F67adB8219e1816C2E5bBEa055A78AF3026#code): transaction [0x70ae3fc5f6442e19741bfcf455957088729aee976bb1b80d7224c4a37d2ce6bd](https://etherscan.io/tx/0x70ae3fc5f6442e19741bfcf455957088729aee976bb1b80d7224c4a37d2ce6bd), implementations: [0x2e8AD1434663b209EE59eF1a6612114239F4a190](https://etherscan.io/address/0x2e8AD1434663b209EE59eF1a6612114239F4a190#code) - 2024-03-22 07:29 UTC, deployment of [OptimismL2Gateway](https://optimistic.etherscan.io/address/0xaD5d729291C0d6A299E370814CA6Ce1c8C25b51c#code): transaction [0x2da77621f5936cebac55ac1c25951289f2aad1fae1a7a0ccb8388b2332f804e4](https://optimistic.etherscan.io/tx/0x2da77621f5936cebac55ac1c25951289f2aad1fae1a7a0ccb8388b2332f804e4), implementations: [0x3C3f4b866f8c6F0D2c912feE36D5Ad337a9AA98e](https://optimistic.etherscan.io/address/0x3C3f4b866f8c6F0D2c912feE36D5Ad337a9AA98e#code) - 2024-03-22 07:28 UTC, deployment of [OptimismzkLink](https://optimistic.etherscan.io/address/0x46C8D02E93d5a03899dFa7Cf8A40A07589A3fA1b#code): transaction [0x412ad99eb52f12520a7367ec39f9b56a06e25aa1b17847dbe23f6700baa4bfaa](https://optimistic.etherscan.io/tx/0x412ad99eb52f12520a7367ec39f9b56a06e25aa1b17847dbe23f6700baa4bfaa), implementations: [0xebdA7f097EF976e8E82FA11F05ef1906f3068105](https://optimistic.etherscan.io/address/0xebdA7f097EF976e8E82FA11F05ef1906f3068105#code) - 2024-03-14 14:36 UTC, deployment of [BlastL1ERC20Bridge](https://blastscan.io/address/0x8Df0c2bA3916bF4789c50dEc5A79b2fc719F500b#code): transaction [0x6c75a5c435f7e399d35fa65b31295cfa722742a9cd03208bcf726891f028d0b2](https://blastscan.io/tx/0x6c75a5c435f7e399d35fa65b31295cfa722742a9cd03208bcf726891f028d0b2), implementations: [0x4D7012d5C62c351804CCe49c2d7C09A401fD3deC](https://blastscan.io/address/0x4D7012d5C62c351804CCe49c2d7C09A401fD3deC#code) - 2024-03-14 12:14 UTC, deployment of [BlastL1Gateway](https://etherscan.io/address/0x41FaF46Ca4Dfd912B65B66D29BdD432782BB1158#code): transaction [0x5d17ffa3cd6b87a4abf52debbd5348ecdd275b5d20733277c7ac517cfa61f901](https://etherscan.io/tx/0x5d17ffa3cd6b87a4abf52debbd5348ecdd275b5d20733277c7ac517cfa61f901), implementations: [0x1DFF9a84A7Df94084995cAE2feac4a31fBCf4c9E](https://etherscan.io/address/0x1DFF9a84A7Df94084995cAE2feac4a31fBCf4c9E#code) - 2024-03-14 12:13 UTC, deployment of [BlastL2Gateway](https://blastscan.io/address/0x3f64e2e09732969813904a8473074CFADeE66AF1#code): transaction [0x05e9bceb1c88e60beabf453da2cfc31525989a529e5d600fbe170dfdb1325c88](https://blastscan.io/tx/0x05e9bceb1c88e60beabf453da2cfc31525989a529e5d600fbe170dfdb1325c88), implementations: [0xd1dCd063A4e650DCECd8BD211fe6D18a934ecCaD](https://blastscan.io/address/0xd1dCd063A4e650DCECd8BD211fe6D18a934ecCaD#code) - 2024-03-14 12:02 UTC, deployment of [BlastzkLink](https://blastscan.io/address/0x29BA92Fe724beD5c5EBfd0099F2F64a6DC5078FD#code): transaction [0xd2b32d00ff07d1bb06d1fb01f3aedb6163ee3bf6fbe547310c4674f592d4d7f5](https://blastscan.io/tx/0xd2b32d00ff07d1bb06d1fb01f3aedb6163ee3bf6fbe547310c4674f592d4d7f5), implementations: [0x35E808DB3A37eec12ecF6A22Cc951C9F867f1D64](https://blastscan.io/address/0x35E808DB3A37eec12ecF6A22Cc951C9F867f1D64#code) - 2024-03-09 10:55 UTC, upgrade of [ArbitrumL2Gateway](https://arbiscan.io/address/0x7bd79DEd935B542fb22c74305a4d2A293C18483a#code): transaction [0x2bc75a8c67da17b0d0c4543bfc3bbc51248fba5b4430ecf3f8836fe83d7b065a](https://arbiscan.io/tx/0x2bc75a8c67da17b0d0c4543bfc3bbc51248fba5b4430ecf3f8836fe83d7b065a), implementations: [0x413552461b0b2c13f117d885b52AaA2f23374B1D](https://arbiscan.io/address/0x413552461b0b2c13f117d885b52AaA2f23374B1D#code) ([diff](https://disco.ethbeat.org/diff/arb1:0xA194FB4EaB262EC9886A119609bbB2800bdD3a2E/arb1:0x413552461b0b2c13f117d885b52AaA2f23374B1D)) - 2024-03-09 10:52 UTC, upgrade of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x40fe517bb5f7d135cc8dc1c39fe59b6ec44bf2b9477ab4f9f3e7fc09f658e892](https://pacific-explorer.manta.network/tx/0x40fe517bb5f7d135cc8dc1c39fe59b6ec44bf2b9477ab4f9f3e7fc09f658e892), implementations: [0x50efC7f1290479cb879473512D89fDC80B726211](https://pacific-explorer.manta.network/address/0x50efC7f1290479cb879473512D89fDC80B726211#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72/manta:0x50efC7f1290479cb879473512D89fDC80B726211)) - 2024-03-09 10:51 UTC, upgrade of [MantleL2Gateway](https://explorer.mantle.xyz/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0xd264b50869bc4bd7d2c3ad80541399bc5a1963aa4ef010ea40e699ab0a56a9a7](https://explorer.mantle.xyz/tx/0xd264b50869bc4bd7d2c3ad80541399bc5a1963aa4ef010ea40e699ab0a56a9a7), implementations: [0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72](https://explorer.mantle.xyz/address/0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72#code) ([diff](https://disco.ethbeat.org/diff/manta:0x55fa5276c44c1B465196898b144524C9c852235E/mantle:0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72)) - 2024-03-09 10:50 UTC, upgrade of [LineaL2Gateway](https://lineascan.build/address/0x7b5780d6df85A7dF96a3e1A019639a1dbDe937dB#code): transaction [0x37af14ba1cab3bbd0b202ad21c9bd057c8d36f654ff515e18fc22af68ea72d33](https://lineascan.build/tx/0x37af14ba1cab3bbd0b202ad21c9bd057c8d36f654ff515e18fc22af68ea72d33), implementations: [0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518](https://lineascan.build/address/0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518#code) ([diff](https://disco.ethbeat.org/diff/linea:0xaFc54E8277f8Bb8c195C794B0D10D6766e89DF0a/linea:0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518)) - 2024-03-09 10:47 UTC, upgrade of [MantaL1Gateway](https://etherscan.io/address/0x649Dfa2c4d09D877419fA1eDC4005BfbEF7CD82D#code): transaction [0xb5a1a3bd4ba7f9fb2d0f3d22755881f2d6998f9dfaf6f70194659f71aedf86b8](https://etherscan.io/tx/0xb5a1a3bd4ba7f9fb2d0f3d22755881f2d6998f9dfaf6f70194659f71aedf86b8), implementations: [0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962](https://etherscan.io/address/0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962#code) ([diff](https://disco.ethbeat.org/diff/eth:0x161f4BAAb4052f20F5f4347eC4422556aA0477f0/eth:0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962)) - 2024-03-09 10:46 UTC, upgrade of [MantleL1Gateway](https://etherscan.io/address/0xdE1Ce751405Fe6D836349226EEdCDFFE1C3BE269#code): transaction [0x36b3bf7e49f03b37dc4fc5ffc4086d6a93dfea8536e80ffde066de879db7f2cd](https://etherscan.io/tx/0x36b3bf7e49f03b37dc4fc5ffc4086d6a93dfea8536e80ffde066de879db7f2cd), implementations: [0xe98EDDAd1f49abc7586eE516d019D834FBDc2951](https://etherscan.io/address/0xe98EDDAd1f49abc7586eE516d019D834FBDc2951#code) ([diff](https://disco.ethbeat.org/diff/eth:0xa86ef37098C0507196A5f411AfFbf8f51FCe9637/eth:0xe98EDDAd1f49abc7586eE516d019D834FBDc2951)) - 2024-03-09 10:45 UTC, upgrade of [LineaL1Gateway](https://etherscan.io/address/0x803460416C2682Ac54FccF03eF77b10A12f2809b#code): transaction [0x2010b0544391cadef00257da2bf40d85288c1fc2bcc63e611cf89f5bd8e1d951](https://etherscan.io/tx/0x2010b0544391cadef00257da2bf40d85288c1fc2bcc63e611cf89f5bd8e1d951), implementations: [0xD2ED3FA35be899fe850075946Fc7320bB4c18C29](https://etherscan.io/address/0xD2ED3FA35be899fe850075946Fc7320bB4c18C29#code) ([diff](https://disco.ethbeat.org/diff/eth:0x67EBB0b6273A2e5728410Af81609226A96ACcb3e/eth:0xD2ED3FA35be899fe850075946Fc7320bB4c18C29)) - 2024-03-09 10:44 UTC, upgrade of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0x337b3879d9a4e751f6aff14cdb948d3b5cb63cbb60233cbd789adca9205d4aaa](https://etherscan.io/tx/0x337b3879d9a4e751f6aff14cdb948d3b5cb63cbb60233cbd789adca9205d4aaa), implementations: [0x8915B1750f337342F2b6A2eF1BF12e279e3b497E](https://etherscan.io/address/0x8915B1750f337342F2b6A2eF1BF12e279e3b497E#code) ([diff](https://disco.ethbeat.org/diff/eth:0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716/eth:0x8915B1750f337342F2b6A2eF1BF12e279e3b497E)) - 2024-03-09 10:43 UTC, upgrade of [ArbitrumL1Gateway](https://etherscan.io/address/0x273D59aed2d793167c162E64b9162154B07583C0#code): transaction [0x57a6a5ba63d2b0b231901f39e869036ada97f0c769faca33f45fcce37eb21aad](https://etherscan.io/tx/0x57a6a5ba63d2b0b231901f39e869036ada97f0c769faca33f45fcce37eb21aad), implementations: [0xF69302b6fF21116F9266bFA2fbE4ee23f6292875](https://etherscan.io/address/0xF69302b6fF21116F9266bFA2fbE4ee23f6292875#code) ([diff](https://disco.ethbeat.org/diff/eth:0xa005091c98e6793b90E1340Bbd36C5d6De36fB60/eth:0xF69302b6fF21116F9266bFA2fbE4ee23f6292875)) - 2024-03-09 10:41 UTC, upgrade of [EthereumL1Gateway](https://etherscan.io/address/0x83Bc7394738A7A084081aF22EEC0051908c0055c#code): transaction [0x50a3b1abdbfb058cd85b72555a8734666f7b05f5ca0c1abd82559c61b54f237e](https://etherscan.io/tx/0x50a3b1abdbfb058cd85b72555a8734666f7b05f5ca0c1abd82559c61b54f237e), implementations: [0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b](https://etherscan.io/address/0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b#code) ([diff](https://disco.ethbeat.org/diff/eth:0x87743f9CccA4a6DFbFfB2856dC6839b1919a43FB/eth:0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b)) - 2024-03-09 10:40 UTC, upgrade of [Arbitrator](https://etherscan.io/address/0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002#code): transaction [0xd9a9e46b9d7321babc6608896c2d2438db12c25b92e96b39a705384560e4d67c](https://etherscan.io/tx/0xd9a9e46b9d7321babc6608896c2d2438db12c25b92e96b39a705384560e4d67c), implementations: [0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a](https://etherscan.io/address/0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a#code) ([diff](https://disco.ethbeat.org/diff/eth:0xD2b679671354087ead3C683F48da4b738f0fC675/eth:0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a)) - 2024-03-09 10:39 UTC, upgrade of [ArbitrumzkLink](https://arbiscan.io/address/0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A#code): transaction [0x2d6ab13f653c95e66eb8f995ecec5218aaa69dc457d8c314d5c0df3383b0a7eb](https://arbiscan.io/tx/0x2d6ab13f653c95e66eb8f995ecec5218aaa69dc457d8c314d5c0df3383b0a7eb), implementations: [0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e](https://arbiscan.io/address/0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e#code) ([diff](https://disco.ethbeat.org/diff/arb1:0x50efC7f1290479cb879473512D89fDC80B726211/arb1:0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e)) - 2024-03-09 10:21 UTC, upgrade of [ErazkLink](https://explorer.zksync.io/address/0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A#code): transaction [0x36b4b07ab7556a46e511974d1e6ef3baacce9b569299326bba10f33d8166d0f0](https://explorer.zksync.io/tx/0x36b4b07ab7556a46e511974d1e6ef3baacce9b569299326bba10f33d8166d0f0), implementations: [0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5](https://explorer.zksync.io/address/0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5#code) ([diff](https://disco.ethbeat.org/diff/zksync:0x1D3A82B3BDE1d23D3989b77325C4875395c9D6a9/zksync:0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5)) - 2024-03-09 10:17 UTC, upgrade of [MantazkLink](https://pacific-explorer.manta.network/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x8ee4d527346b72e8b98838d84ef8667fc841944314f583cabf9993f6f462f848](https://pacific-explorer.manta.network/tx/0x8ee4d527346b72e8b98838d84ef8667fc841944314f583cabf9993f6f462f848), implementations: [0xe89635a7339bf46198f76b17bCFdAD977699cc13](https://pacific-explorer.manta.network/address/0xe89635a7339bf46198f76b17bCFdAD977699cc13#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e/manta:0xe89635a7339bf46198f76b17bCFdAD977699cc13)) - 2024-03-09 10:15 UTC, upgrade of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x0f8754436aa05997946fd34f1a0573cb22a6c27181af505cb4d4121723bdd1cd](https://explorer.mantle.xyz/tx/0x0f8754436aa05997946fd34f1a0573cb22a6c27181af505cb4d4121723bdd1cd), implementations: [0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e](https://explorer.mantle.xyz/address/0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x5715Dec4cd747675E47b969D3a15aab909b8ce05/mantle:0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e)) - 2024-03-09 10:10 UTC, upgrade of [EthereumzkLink](https://etherscan.io/address/0x5fD9F73286b7E8683Bab45019C94553b93e015Cf#code): transaction [0x6fb95bcc6d76a0ad1a5f53b1bf99fb6e40672ac789e931d5565691f473d13ced](https://etherscan.io/tx/0x6fb95bcc6d76a0ad1a5f53b1bf99fb6e40672ac789e931d5565691f473d13ced), implementations: [0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD](https://etherscan.io/address/0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD#code) ([diff](https://disco.ethbeat.org/diff/eth:0xA89aa7e3D34516EAB7129E401215d5d1239Ce715/eth:0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD)) - 2024-03-09 10:02 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0xe5ccaa4de67ac346e3a8360734dc8d32e894e60ef78686734428bc400f621781](https://lineascan.build/tx/0xe5ccaa4de67ac346e3a8360734dc8d32e894e60ef78686734428bc400f621781), implementations: [0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503](https://lineascan.build/address/0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503#code) ([diff](https://disco.ethbeat.org/diff/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049/linea:0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503)), [0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB](https://lineascan.build/address/0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB#code) ([diff](https://disco.ethbeat.org/diff/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0/linea:0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB)), [0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA](https://lineascan.build/address/0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA#code) ([diff](https://disco.ethbeat.org/diff/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0/linea:0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA)), [0x1b19287CE898217D937571EABa97ec50F27d1206](https://lineascan.build/address/0x1b19287CE898217D937571EABa97ec50F27d1206#code) ([diff](https://disco.ethbeat.org/diff/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c/linea:0x1b19287CE898217D937571EABa97ec50F27d1206)) - 2024-03-09 09:54 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0xdc95a41e73ce7a4cb3200d9b2ecdcb33b548678392e2ac62e35dfc10e37f3308](https://lineascan.build/tx/0xdc95a41e73ce7a4cb3200d9b2ecdcb33b548678392e2ac62e35dfc10e37f3308), implementations: [0x73B076425025A3Bf059001D5bE0E21384C8cf049](https://lineascan.build/address/0x73B076425025A3Bf059001D5bE0E21384C8cf049#code) ([diff](https://disco.ethbeat.org/diff/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049)), [0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0](https://lineascan.build/address/0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0#code) ([diff](https://disco.ethbeat.org/diff/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0)), [0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0](https://lineascan.build/address/0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0#code) ([diff](https://disco.ethbeat.org/diff/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0)), [0x841f709F4219a1283300c0250cA7c582aD2B289c](https://lineascan.build/address/0x841f709F4219a1283300c0250cA7c582aD2B289c#code) ([diff](https://disco.ethbeat.org/diff/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c)) - 2024-03-05 07:02 UTC, upgrade of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0xc24ab17a2b61d12b44999bbb861baf3f0f73b59881c80fae8c9763f83c7d1219](https://etherscan.io/tx/0xc24ab17a2b61d12b44999bbb861baf3f0f73b59881c80fae8c9763f83c7d1219), implementations: [0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716](https://etherscan.io/address/0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716#code) ([diff](https://disco.ethbeat.org/diff/eth:0xFF2568C81453a0741b1b97f3Fe598B07a927d79E/eth:0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716)) - 2024-03-04 03:26 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x33b1bba23b3c4bf16fb2b10b47dfda138dc2ff659fc32e2d0926b716e76f3dbc](https://lineascan.build/tx/0x33b1bba23b3c4bf16fb2b10b47dfda138dc2ff659fc32e2d0926b716e76f3dbc), implementations: [0x73B076425025A3Bf059001D5bE0E21384C8cf049](https://lineascan.build/address/0x73B076425025A3Bf059001D5bE0E21384C8cf049#code) ([diff](https://disco.ethbeat.org/diff/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049)), [0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0](https://lineascan.build/address/0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0#code) ([diff](https://disco.ethbeat.org/diff/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0)), [0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0](https://lineascan.build/address/0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0#code) ([diff](https://disco.ethbeat.org/diff/linea:0x6052B353022dA2C61a999bf081C349260de993Af/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0)), [0x841f709F4219a1283300c0250cA7c582aD2B289c](https://lineascan.build/address/0x841f709F4219a1283300c0250cA7c582aD2B289c#code) ([diff](https://disco.ethbeat.org/diff/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c)) - 2024-03-01 12:44 UTC, deployment of [EraL1ERC20Bridge](https://explorer.zksync.io/address/0xaB3DDB86072a35d74beD49AA0f9210098ebf2D08#code): transaction [0x0564dfd39bc1c198014393565488b4808d94d76790f60c342ac6b031a000233d](https://explorer.zksync.io/tx/0x0564dfd39bc1c198014393565488b4808d94d76790f60c342ac6b031a000233d), implementations: [0x022c9D356d6B020D3128de430458A28C7183a13d](https://explorer.zksync.io/address/0x022c9D356d6B020D3128de430458A28C7183a13d#code) - 2024-03-01 12:42 UTC, deployment of [ArbitrumL1ERC20Bridge](https://arbiscan.io/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code): transaction [0x4879e7a6e35cdd40863e69eec2b64cafa514ca68ea8b4b9942c9624a18bfa2bf](https://arbiscan.io/tx/0x4879e7a6e35cdd40863e69eec2b64cafa514ca68ea8b4b9942c9624a18bfa2bf), implementations: [0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c](https://arbiscan.io/address/0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c#code) - 2024-03-01 12:41 UTC, deployment of [MantleL1ERC20Bridge](https://explorer.mantle.xyz/address/0x62351b47e060c61868Ab7E05920Cb42bD9A5f2B2#code): transaction [0xaf05aafd35db4063ec7549aeed61f0a2ced59a80c34aefe1a2f7e0de6a1ac7c8](https://explorer.mantle.xyz/tx/0xaf05aafd35db4063ec7549aeed61f0a2ced59a80c34aefe1a2f7e0de6a1ac7c8), implementations: [0xbfa352a683D82a04233Cc45AC1308621BA63283f](https://explorer.mantle.xyz/address/0xbfa352a683D82a04233Cc45AC1308621BA63283f#code) - 2024-03-01 12:23 UTC, deployment of [MantaL1ERC20Bridge](https://pacific-explorer.manta.network/address/0x44a65dc12865A1e5249b45b4868f32b0E37168FF#code): transaction [0x2943e153ac49278eb44cc3606eb830489bd39126056837515c5f1d4fd6262943](https://pacific-explorer.manta.network/tx/0x2943e153ac49278eb44cc3606eb830489bd39126056837515c5f1d4fd6262943), implementations: [0x0d53cE63f3A72879d543ed6272A081308A731470](https://pacific-explorer.manta.network/address/0x0d53cE63f3A72879d543ed6272A081308A731470#code) - 2024-03-01 12:15 UTC, deployment of [EthereumL1ERC20Bridge](https://etherscan.io/address/0xAd16eDCF7DEB7e90096A259c81269d811544B6B6#code): transaction [0x185cdd8d3ef12b9ccfb69bde86098b46813cd9c97ceda3d290a008be59c7fd19](https://etherscan.io/tx/0x185cdd8d3ef12b9ccfb69bde86098b46813cd9c97ceda3d290a008be59c7fd19), implementations: [0xc271a8e9eB2b10FCDe1709D76de6681249669D2e](https://etherscan.io/address/0xc271a8e9eB2b10FCDe1709D76de6681249669D2e#code) - 2024-03-01 11:29 UTC, upgrade of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x4a6764267c156b1453ce1460fca710b3544d2df4ddeb03c625843c891886cb1b](https://pacific-explorer.manta.network/tx/0x4a6764267c156b1453ce1460fca710b3544d2df4ddeb03c625843c891886cb1b), implementations: [0x55fa5276c44c1B465196898b144524C9c852235E](https://pacific-explorer.manta.network/address/0x55fa5276c44c1B465196898b144524C9c852235E#code) ([diff](https://disco.ethbeat.org/diff/manta:0xbfa352a683D82a04233Cc45AC1308621BA63283f/manta:0x55fa5276c44c1B465196898b144524C9c852235E)) - 2024-03-01 11:22 UTC, upgrade of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x59d14b41116012c515c95ed7546fdcc82a1535184eb2a134daff77bf2db9c5f6](https://pacific-explorer.manta.network/tx/0x59d14b41116012c515c95ed7546fdcc82a1535184eb2a134daff77bf2db9c5f6), implementations: [0xbfa352a683D82a04233Cc45AC1308621BA63283f](https://pacific-explorer.manta.network/address/0xbfa352a683D82a04233Cc45AC1308621BA63283f#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x55fa5276c44c1B465196898b144524C9c852235E/manta:0xbfa352a683D82a04233Cc45AC1308621BA63283f)) - 2024-03-01 08:23 UTC, deployment of [ArbitrumL1Gateway](https://etherscan.io/address/0x273D59aed2d793167c162E64b9162154B07583C0#code): transaction [0x8ff3969fc5600c4a0f42b86a858be420ac1eb3005ca3a5766fa04844dd8cbfa1](https://etherscan.io/tx/0x8ff3969fc5600c4a0f42b86a858be420ac1eb3005ca3a5766fa04844dd8cbfa1), implementations: [0xa005091c98e6793b90E1340Bbd36C5d6De36fB60](https://etherscan.io/address/0xa005091c98e6793b90E1340Bbd36C5d6De36fB60#code) - 2024-03-01 08:22 UTC, deployment of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0xa8070c4addf0258525ca69e13ee1d2d7a5098c0a7ffd29ec28f1920f4fc465b8](https://etherscan.io/tx/0xa8070c4addf0258525ca69e13ee1d2d7a5098c0a7ffd29ec28f1920f4fc465b8), implementations: [0xFF2568C81453a0741b1b97f3Fe598B07a927d79E](https://etherscan.io/address/0xFF2568C81453a0741b1b97f3Fe598B07a927d79E#code) - 2024-03-01 08:20 UTC, deployment of [MantleL1Gateway](https://etherscan.io/address/0xdE1Ce751405Fe6D836349226EEdCDFFE1C3BE269#code): transaction [0x373a2fba4cbf35d0dbe1e93d4c3d3a5cec9853c84b81b6088f3aa6990f22f4f1](https://etherscan.io/tx/0x373a2fba4cbf35d0dbe1e93d4c3d3a5cec9853c84b81b6088f3aa6990f22f4f1), implementations: [0xa86ef37098C0507196A5f411AfFbf8f51FCe9637](https://etherscan.io/address/0xa86ef37098C0507196A5f411AfFbf8f51FCe9637#code) - 2024-03-01 08:18 UTC, deployment of [MantaL1Gateway](https://etherscan.io/address/0x649Dfa2c4d09D877419fA1eDC4005BfbEF7CD82D#code): transaction [0x4edc02a8e19662c19aa6263b39b11c5faa8be3312a83505f79e1c64352b20c53](https://etherscan.io/tx/0x4edc02a8e19662c19aa6263b39b11c5faa8be3312a83505f79e1c64352b20c53), implementations: [0x161f4BAAb4052f20F5f4347eC4422556aA0477f0](https://etherscan.io/address/0x161f4BAAb4052f20F5f4347eC4422556aA0477f0#code) - 2024-03-01 08:16 UTC, deployment of [LineaL1Gateway](https://etherscan.io/address/0x803460416C2682Ac54FccF03eF77b10A12f2809b#code): transaction [0x01bb57dff1464aa31b2871caddf2cd239068df11076fea2d6e041275eb5fc701](https://etherscan.io/tx/0x01bb57dff1464aa31b2871caddf2cd239068df11076fea2d6e041275eb5fc701), implementations: [0x67EBB0b6273A2e5728410Af81609226A96ACcb3e](https://etherscan.io/address/0x67EBB0b6273A2e5728410Af81609226A96ACcb3e#code) - 2024-03-01 08:10 UTC, deployment of [ErazkLink](https://explorer.zksync.io/address/0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A#code): transaction [0xc46fbc277cb8c7a4cc234225d13ef11be35301d8aae17df2537a2b54692ab750](https://explorer.zksync.io/tx/0xc46fbc277cb8c7a4cc234225d13ef11be35301d8aae17df2537a2b54692ab750), implementations: [0x1D3A82B3BDE1d23D3989b77325C4875395c9D6a9](https://explorer.zksync.io/address/0x1D3A82B3BDE1d23D3989b77325C4875395c9D6a9#code) - 2024-03-01 08:07 UTC, deployment of [ArbitrumL2Gateway](https://arbiscan.io/address/0x7bd79DEd935B542fb22c74305a4d2A293C18483a#code): transaction [0xaa8e1f332b3da71bb09cffdf5b797cdf7bc285cfad780a78d294c02619dba31e](https://arbiscan.io/tx/0xaa8e1f332b3da71bb09cffdf5b797cdf7bc285cfad780a78d294c02619dba31e), implementations: [0xA194FB4EaB262EC9886A119609bbB2800bdD3a2E](https://arbiscan.io/address/0xA194FB4EaB262EC9886A119609bbB2800bdD3a2E#code) - 2024-03-01 08:07 UTC, deployment of [ArbitrumzkLink](https://arbiscan.io/address/0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A#code): transaction [0x188f9617f4266ba6c55c01e49a2b918860f60ab012dd921f7a6bbf2478380b4b](https://arbiscan.io/tx/0x188f9617f4266ba6c55c01e49a2b918860f60ab012dd921f7a6bbf2478380b4b), implementations: [0x50efC7f1290479cb879473512D89fDC80B726211](https://arbiscan.io/address/0x50efC7f1290479cb879473512D89fDC80B726211#code) - 2024-03-01 07:52 UTC, deployment of [LineaL2Gateway](https://lineascan.build/address/0x7b5780d6df85A7dF96a3e1A019639a1dbDe937dB#code): transaction [0xa810024f29ca544f9587b26bd9ca270c0811b58dd9fcc75ee870e24c316468cc](https://lineascan.build/tx/0xa810024f29ca544f9587b26bd9ca270c0811b58dd9fcc75ee870e24c316468cc), implementations: [0xaFc54E8277f8Bb8c195C794B0D10D6766e89DF0a](https://lineascan.build/address/0xaFc54E8277f8Bb8c195C794B0D10D6766e89DF0a#code) - 2024-03-01 07:49 UTC, upgrade of [MantleL2Gateway](https://explorer.mantle.xyz/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0xdb5d3920a2bbd9c5a3d97b54c227aa56d0f555060a03d7212a0d05b4239ec0f9](https://explorer.mantle.xyz/tx/0xdb5d3920a2bbd9c5a3d97b54c227aa56d0f555060a03d7212a0d05b4239ec0f9), implementations: [0x55fa5276c44c1B465196898b144524C9c852235E](https://explorer.mantle.xyz/address/0x55fa5276c44c1B465196898b144524C9c852235E#code) ([diff](https://disco.ethbeat.org/diff/manta:0x55fa5276c44c1B465196898b144524C9c852235E/mantle:0x55fa5276c44c1B465196898b144524C9c852235E)) - 2024-03-01 07:48 UTC, upgrade of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x6a00d05f32d4cad32533eacc6bfe09f424002d60b1474ec6d9615d7ad7f86abe](https://explorer.mantle.xyz/tx/0x6a00d05f32d4cad32533eacc6bfe09f424002d60b1474ec6d9615d7ad7f86abe), implementations: [0x5715Dec4cd747675E47b969D3a15aab909b8ce05](https://explorer.mantle.xyz/address/0x5715Dec4cd747675E47b969D3a15aab909b8ce05#code) ([diff](https://disco.ethbeat.org/diff/manta:0x5715Dec4cd747675E47b969D3a15aab909b8ce05/mantle:0x5715Dec4cd747675E47b969D3a15aab909b8ce05)) - 2024-03-01 07:46 UTC, deployment of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x1fca63a739c05f1e22df26b3cc5b2af31de992156fc017e7810cc94671913fee](https://pacific-explorer.manta.network/tx/0x1fca63a739c05f1e22df26b3cc5b2af31de992156fc017e7810cc94671913fee), implementations: [0x55fa5276c44c1B465196898b144524C9c852235E](https://pacific-explorer.manta.network/address/0x55fa5276c44c1B465196898b144524C9c852235E#code) - 2024-03-01 07:44 UTC, deployment of [MantazkLink](https://pacific-explorer.manta.network/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0xc4750009e40fe4c7c227dc379408c428ce6ff26c296f9eb06815b021339fdf69](https://pacific-explorer.manta.network/tx/0xc4750009e40fe4c7c227dc379408c428ce6ff26c296f9eb06815b021339fdf69), implementations: [0x5715Dec4cd747675E47b969D3a15aab909b8ce05](https://pacific-explorer.manta.network/address/0x5715Dec4cd747675E47b969D3a15aab909b8ce05#code) - 2024-03-01 07:42 UTC, deployment of [EthereumL1Gateway](https://etherscan.io/address/0x83Bc7394738A7A084081aF22EEC0051908c0055c#code): transaction [0x20bb9ab00c3acf52a01d22bb87c0af9ba1195ba50291c21cfc581322057d1ba4](https://etherscan.io/tx/0x20bb9ab00c3acf52a01d22bb87c0af9ba1195ba50291c21cfc581322057d1ba4), implementations: [0x87743f9CccA4a6DFbFfB2856dC6839b1919a43FB](https://etherscan.io/address/0x87743f9CccA4a6DFbFfB2856dC6839b1919a43FB#code) - 2024-03-01 07:39 UTC, deployment of [EthereumzkLink](https://etherscan.io/address/0x5fD9F73286b7E8683Bab45019C94553b93e015Cf#code): transaction [0xbe3c99c5f0c926495895beed70b15cbc9fe4dfb1b541d08d1c4f9b6c7ff59ce5](https://etherscan.io/tx/0xbe3c99c5f0c926495895beed70b15cbc9fe4dfb1b541d08d1c4f9b6c7ff59ce5), implementations: [0xA89aa7e3D34516EAB7129E401215d5d1239Ce715](https://etherscan.io/address/0xA89aa7e3D34516EAB7129E401215d5d1239Ce715#code) - 2024-03-01 06:39 UTC, deployment of [Arbitrator](https://etherscan.io/address/0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002#code): transaction [0x4982bb48f0071f234c1708804bd549ccb1b79f3eafdad5cdf644aeb3f9078553](https://etherscan.io/tx/0x4982bb48f0071f234c1708804bd549ccb1b79f3eafdad5cdf644aeb3f9078553), implementations: [0xD2b679671354087ead3C683F48da4b738f0fC675](https://etherscan.io/address/0xD2b679671354087ead3C683F48da4b738f0fC675#code) - 2024-02-29 14:48 UTC, deployment of [LineaL1ERC20Bridge](https://lineascan.build/address/0x62cE247f34dc316f93D3830e4Bf10959FCe630f8#code): transaction [0xd4a7bf62cc26e7852b2f27b65739c9d3fb4c0f7ad57757d0a854391c9b1395c3](https://lineascan.build/tx/0xd4a7bf62cc26e7852b2f27b65739c9d3fb4c0f7ad57757d0a854391c9b1395c3), implementations: [0xB8017A397E7844635c5a2750d0BEB2af97506461](https://lineascan.build/address/0xB8017A397E7844635c5a2750d0BEB2af97506461#code) - 2024-02-29 14:48 UTC, deployment of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x819d006b90a1059b199bc80dd0bdc799ff3bfc4835056c5a818ebe4d6e7a0b2e](https://lineascan.build/tx/0x819d006b90a1059b199bc80dd0bdc799ff3bfc4835056c5a818ebe4d6e7a0b2e), implementations: [0x73B076425025A3Bf059001D5bE0E21384C8cf049](https://lineascan.build/address/0x73B076425025A3Bf059001D5bE0E21384C8cf049#code), [0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0](https://lineascan.build/address/0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0#code), [0x6052B353022dA2C61a999bf081C349260de993Af](https://lineascan.build/address/0x6052B353022dA2C61a999bf081C349260de993Af#code), [0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0](https://lineascan.build/address/0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0#code) ## Updates Each date links the update on the HTML page, which also shows its contract diffs. ### [2025-07-28 07:29 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=14e0bcba) (3 changes) Format cross-chain counterpart addresses with the chain they live on ### [2025-07-28 07:29 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=5ccc4892) (22 changes) Include deployer address ### [2025-07-28 07:30 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=0a2ad558) (8 changes) mantaOwner verified as Safe. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=071708e3) (7 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=3a924024) (5 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=d5f4ff72) (15 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=cd43aeac) (5 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=88c39979) (5 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=b5397720) (5 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=7fae3635) (5 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=0dfdc5f7) (5 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=32ee7c8f) (4 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=72b3b759) (5 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-06-18 12:24 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=64d44d8b) (2 changes) config: wasmmoduleroot map updated. ### [2025-05-30 06:44 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=6586a4a5) (57 changes) upgrade to an unverified implementation. hardcoded validators, parking original `validators` config.jsonc snippet here because the comments are broken ``` "handler": { "type": "event", "select": "validatorAddress", "add": { "event": "ValidatorStatusUpdate", "where": ["=", "#isActive", true] }, "remove": { "event": "ValidatorStatusUpdate", "where": ["!=", "#isActive", true] } } ``` ### [2025-03-10 16:52 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=5933ec0e) (1 change) zklink core contract paused. this only prevents deposits/ on the affected chains. ### [2025-03-10 16:52 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=7ade9a09) (1 change) zklink core contract paused. this only prevents deposits/ on the affected chains. ### [2025-03-10 16:52 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=c5840ea3) (1 change) zklink core contract paused. this only prevents deposits/ on the affected chains. ### [2025-03-10 16:52 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=982ae9a2) (1 change) zklink core contract paused. this only prevents deposits/ on the affected chains. ### [2025-03-10 16:52 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=fa016735) (1 change) zklink core contract paused. this only prevents deposits/ on the affected chains. ### [2024-09-05 14:10 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=14d5a2ce) (1 change) Fee withdrawer changed to OptimismOwner. ### [2024-09-05 14:10 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=8307f23c) (1 change) Fee withdrawer changed to BaseOwner. ### [2024-09-04 07:33 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=b3acb1bc) (10 changes) One signer is added to OptimismOwner MS (and threshold increased to 5/8). ### [2024-09-04 07:33 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=324f1ba9) (6 changes) Set forwardFeeAllocator to MantaOwner MS. The forwardFee consists of fees paid to 'validators' for `requestL2Transaction()`. One signer of MantaOwner MS is changed. ### [2024-09-04 07:33 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=9ee6c605) (6 changes) One signer of EraOwner MS is changed. ### [2024-09-04 07:32 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=ad6537c2) (7 changes) Set forwardFeeAllocator to EthereumOwner MS. (And withdraw 15 ETH of fees). The forwardFee consists of fees paid to 'validators' for `requestL2Transaction()`. One signer of EthereumOwner MS is changed. ### [2024-09-04 07:32 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=2ca9b251) (1 change) Set forwardFeeAllocator to MantleOwner MS. The forwardFee consists of fees paid to 'validators' for `requestL2Transaction()`. ### [2024-09-04 07:32 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=8854a19d) (10 changes) Add one signer to the MS, increase threshold to 5/8. ### [2024-09-04 07:32 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=7db808dc) (6 changes) Change one signer of the MS. ### [2024-08-04 10:28 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=c4e810a3) (10 changes) One signer in the Owner MS is replaced and one validator removed. ### [2024-07-30 11:18 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=ac7dcec2) (2 changes) Discovery rerun on the same block number with only config-related changes. ### [2024-07-26 09:00 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=7134a8c8) (10 changes) One signer is added to the Owner MS, and the threshold is increased to 5. ### [2024-07-26 08:11 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=1b709390) (2 changes) Base admin / owner MS threshold is lowered to 4/7. ### [2024-07-26 08:09 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=79be9725) (2 changes) The admin / owner MS threshold is lowered to 5/8. ### [2024-07-26 08:03 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=30b80df2) (1 change) Apparently a threshold change, but the contract is still unverified. (partial match source available on blockscout) ### [2024-07-26 07:58 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=a1585641) (7 changes) The governance (owner, admin roles) of the scroll contracts are transferred from an EOA to a new Multisig. ### [2024-07-26 07:37 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=01d5508d) (7 changes) The ScrollL1Gateway admin and owner are changed from the zkLinkNova deployer to the EthereumOwner MS. The same MS is already owner and admin of all other gateways on ethereum. ### [2024-07-23 08:08 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=cb933940) (7 changes) Change the explorer from blockscout to etherscan like for Mantle. The source is verified on both but only Etherscan one returns a correct result. ### [2024-07-08 11:13 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=4b7581e7) (4 changes) Provide description of changes. This section will be preserved. ### [2024-07-05 13:17 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=9b82b2a4) (15 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:15 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=5172fe34) (8 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:14 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=c6e41961) (5 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:11 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=32930c3a) (5 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:10 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=9279ac01) (5 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:10 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=a8ff088c) (5 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:09 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=b95db1b0) (4 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:09 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=b26f9819) (5 changes) Provide description of changes. This section will be preserved. ### [2024-07-04 14:08 UTC](https://ethbeat.org/layer2s/projects/zklinknova?update=4528e085) (5 changes) Provide description of changes. This section will be preserved. ## Operator The section considers only the L3 properties. For more details please refer to [Linea](https://ethbeat.org/layer2s/projects/linea) ### The system has a centralized operator The validators are the only entities that can propose blocks and process transactions. Moreover, they are trusted to only relay valid messages using the fast path. Fast path messages are eventually checked against the slow path, and if they are invalid, the system halts. **Risks** - MEV can be extracted if the operator exploits their centralized position and frontruns user transactions. - Funds can be lost if the operator relays invalid messages using the fast path (CRITICAL). ### Users can force any transaction via L2 If a user is censored by L3 Sequencer, they can try to force transaction via L2 queue. Right now there is no mechanism that forces L3 Sequencer to include transactions from L2 queue in an L3 block. **Risks** - Users can be censored if the operator refuses to include their transactions. ## Withdrawals The section considers only the L3 properties. For more details please refer to [Linea](https://ethbeat.org/layer2s/projects/linea) ### Regular messaging The user initiates L2->L1 messages by submitting a regular transaction on this chain. When the block containing that transaction is settled, the message becomes available for processing on L1. ZK proofs are required to settle blocks. ### Forced messaging If the user experiences censorship from the operator with regular L2->L1 messaging they can submit their messages directly on L1. The system is then obliged to service this request or halt all messages from L1, including all forced withdrawals and deposits. Once the force operation is submitted and if the request is serviced, the operation follows the flow of a regular message. ## Other considerations ### Bridging from multiple chains zkLink allows users to bridge assets from multiple chains, not just the base chain Linea. To do this, messages are sent through the canonical bridges of each respective chain to the main zkLink contract on Linea. To withdraw, state updates are relayed back to each chain with the respective canonical bridges. Since deposits in this way are processed quite slowly, the system allows validators to relay messages directly to the main zkLink contract in a trusted way. These messages are then checked against the slow path, and if they are invalid, the system eventually halts. **Risks** - Funds can be lost if the canonical bridges of the secondary chains are compromised. ## Permissions Explore these contracts and permissions in Disco, ETHBEAT's contract explorer: https://disco.ethbeat.org/ui/p/zklinknova ### Linea #### Actors ##### LineaOwner Addresses: [0x0Bff4B38792a95314b3463E1Bf9831BDa1995391](https://lineascan.build/address/0x0Bff4B38792a95314b3463E1Bf9831BDa1995391) A Multisig with 5/8 threshold. Admin of the main zkLink contract, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://lineascan.build/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://lineascan.build/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://lineascan.build/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://lineascan.build/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0xC75EFCffEE930706daec5CaCA012551f6a1845D7](https://lineascan.build/address/0xC75EFCffEE930706daec5CaCA012551f6a1845D7), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://lineascan.build/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://lineascan.build/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://lineascan.build/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5) ##### 2 actors Addresses: [0x54B39C0e4089f0789b9f8EdE20D725e1AFF805Cb](https://lineascan.build/address/0x54B39C0e4089f0789b9f8EdE20D725e1AFF805Cb), [0x509ff56c152315EdeE91A2e0f059195519507e01](https://lineascan.build/address/0x509ff56c152315EdeE91A2e0f059195519507e01) Permissioned actors that can commit, prove and execute blocks. It can also "fast" relay messages to zkLink Nova without going through the canonical bridges, meaning it can potentially relay invalid messages and mint tokens out of thin air. In that case, since the system checks such messages against the slow path, after some time the system would halt. ### OP Mainnet #### Actors ##### OptimismProxyAdmin Addresses: [0xA688B4E1375Ed6b9129dF4959da4a271B33e50a4](https://optimistic.etherscan.io/address/0xA688B4E1375Ed6b9129dF4959da4a271B33e50a4) Owner of the L1ERC20Bridge on OP Mainnet. ##### OptimismOwner Addresses: [0x2c3FF918E3925CC3ba95f41307D1cfBEFDF93dB9](https://optimistic.etherscan.io/address/0x2c3FF918E3925CC3ba95f41307D1cfBEFDF93dB9) A Multisig with 5/8 threshold. Admin of the zkLink contract on OP Mainnet and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://optimistic.etherscan.io/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://optimistic.etherscan.io/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://optimistic.etherscan.io/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://optimistic.etherscan.io/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://optimistic.etherscan.io/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db](https://optimistic.etherscan.io/address/0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://optimistic.etherscan.io/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://optimistic.etherscan.io/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5) ### Arbitrum One #### Actors ##### ArbitrumProxyAdmin Addresses: [0x48698A17D193bFc882395AC06a1DEdbb222F2917](https://arbiscan.io/address/0x48698A17D193bFc882395AC06a1DEdbb222F2917) Owner of the L1ERC20Bridge on Arbitrum One. ##### ArbitrumOwner Addresses: [0xa29fFe244898CBec19DFEaAfB5cE671389FfF60F](https://arbiscan.io/address/0xa29fFe244898CBec19DFEaAfB5cE671389FfF60F) A Multisig with 5/8 threshold. Admin of the zkLink contract on Arbitrum One and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://arbiscan.io/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://arbiscan.io/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://arbiscan.io/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://arbiscan.io/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://arbiscan.io/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0xC75EFCffEE930706daec5CaCA012551f6a1845D7](https://arbiscan.io/address/0xC75EFCffEE930706daec5CaCA012551f6a1845D7), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://arbiscan.io/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://arbiscan.io/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5) ### Base Chain #### Actors ##### BaseProxyAdmin Addresses: [0x85F0d9da054C5FE399E079Cc0b47de74be5b22AE](https://basescan.org/address/0x85F0d9da054C5FE399E079Cc0b47de74be5b22AE) Owner of the L1ERC20Bridge on Base. ##### BaseOwner Addresses: [0xEf1c84A2fdCE663b75dB3F822cBe1cFddaaa162C](https://basescan.org/address/0xEf1c84A2fdCE663b75dB3F822cBe1cFddaaa162C) A Multisig with 5/8 threshold. Admin of the zkLink contract on Base and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://basescan.org/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://basescan.org/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://basescan.org/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://basescan.org/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://basescan.org/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db](https://basescan.org/address/0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://basescan.org/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://basescan.org/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5) ### Manta Pacific #### Actors ##### MantaProxyAdmin Addresses: [0x01aFbE3D5DC8A0C8271de9bCB091224f037EfE05](https://pacific-explorer.manta.network/address/0x01aFbE3D5DC8A0C8271de9bCB091224f037EfE05) Owner of the L1ERC20Bridge on Manta Pacific. ##### MantaOwner Addresses: [0x6ed8745d9ad0EE1fEeB060d63c7cf78A7E4c2dE3](https://pacific-explorer.manta.network/address/0x6ed8745d9ad0EE1fEeB060d63c7cf78A7E4c2dE3) Admin of the zkLink contract on Manta Pacific and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gaining access to all funds. ### Mantle #### Actors ##### MantleProxyAdmin Addresses: [0xeAe8e5180EAE503E4Ffef2F5D48E20164eD41b82](https://explorer.mantle.xyz/address/0xeAe8e5180EAE503E4Ffef2F5D48E20164eD41b82) Owner of the L1ERC20Bridge on Mantle. ##### MantleOwner Addresses: [0x1aB4D3cfcCCB28DBc8993454f461f3565281BB60](https://explorer.mantle.xyz/address/0x1aB4D3cfcCCB28DBc8993454f461f3565281BB60) A Multisig with 5/8 threshold. Admin of the zkLink contract on Mantle and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://explorer.mantle.xyz/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://explorer.mantle.xyz/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://explorer.mantle.xyz/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://explorer.mantle.xyz/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://explorer.mantle.xyz/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92), [0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db](https://explorer.mantle.xyz/address/0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://explorer.mantle.xyz/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://explorer.mantle.xyz/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5) ### Scroll #### Actors ##### ScrollProxyAdmin Addresses: [0xC4673dAbfAf04D2A430e244B63F040D27199102f](https://scrollscan.com/address/0xC4673dAbfAf04D2A430e244B63F040D27199102f) Owner of the L1ERC20Bridge on Scroll. ##### ScrollOwner Addresses: [0xeCa8EB8B909A29C2F912d5b0cBB153a43c860c77](https://scrollscan.com/address/0xeCa8EB8B909A29C2F912d5b0cBB153a43c860c77) A Multisig with 5/7 threshold. Admin of the zkLink contract on Scroll and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (7): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://scrollscan.com/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://scrollscan.com/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://scrollscan.com/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://scrollscan.com/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0xb2c9E9a8eDEF1488E75F9E5b65Be14751733B144](https://scrollscan.com/address/0xb2c9E9a8eDEF1488E75F9E5b65Be14751733B144), [0xda9f561F0d8d7061fa47e47E352eAD6844Ae3272](https://scrollscan.com/address/0xda9f561F0d8d7061fa47e47E352eAD6844Ae3272), [0x45b62A07c525278F2ecd7915130E797B04B05C48](https://scrollscan.com/address/0x45b62A07c525278F2ecd7915130E797B04B05C48) ### Blast #### Actors ##### BlastProxyAdmin Addresses: [0xB5111Bda1E59b220d0Cf8D519CEDac46cb3B4c19](https://blastscan.io/address/0xB5111Bda1E59b220d0Cf8D519CEDac46cb3B4c19) Owner of the L1ERC20Bridge on Blast. ##### BlastOwner Addresses: [0x730200f698cc8Ff16C00F4E8520Fd780B916D50E](https://blastscan.io/address/0x730200f698cc8Ff16C00F4E8520Fd780B916D50E) A Multisig with 6/8 threshold. Admin of the zkLink contract on Blast and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://blastscan.io/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://blastscan.io/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://blastscan.io/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://blastscan.io/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5), [0xC75EFCffEE930706daec5CaCA012551f6a1845D7](https://blastscan.io/address/0xC75EFCffEE930706daec5CaCA012551f6a1845D7), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://blastscan.io/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db](https://blastscan.io/address/0x824C9364A6CF8f5EB542ad2ca8F5705561C8b1db), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://blastscan.io/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92) ### ZKsync Era #### Actors ##### EraProxyAdmin Addresses: [0xe8184919c7200EF09e7007DFaB89BA4a99CeDc98](https://explorer.zksync.io/address/0xe8184919c7200EF09e7007DFaB89BA4a99CeDc98) Owner of the L1ERC20Bridge on ZKsync Era. ##### EraOwner Addresses: [0x3334552599C9aA1FE08CfF276A02033FF37646ca](https://explorer.zksync.io/address/0x3334552599C9aA1FE08CfF276A02033FF37646ca) A Multisig with 5/8 threshold. Admin of the zkLink contract on ZKsync Era and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://explorer.zksync.io/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://explorer.zksync.io/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://explorer.zksync.io/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://explorer.zksync.io/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0xC75EFCffEE930706daec5CaCA012551f6a1845D7](https://explorer.zksync.io/address/0xC75EFCffEE930706daec5CaCA012551f6a1845D7), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://explorer.zksync.io/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://explorer.zksync.io/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://explorer.zksync.io/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5) ### Ethereum #### Actors ##### EthereumProxyAdmin Addresses: [0x315255c1bA35A1DdAc48CF054bc4e3a0929160b2](https://etherscan.io/address/0x315255c1bA35A1DdAc48CF054bc4e3a0929160b2) Owner of the L1ERC20Bridge on Ethereum. ##### EthereumOwner Addresses: [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D) A Multisig with 5/8 threshold. Admin of the zkLink contract on Ethereum and the ProxyAdmin, meaning it can upgrade the bridge implementation and potentially gain access to all funds. Participants (8): [0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5](https://etherscan.io/address/0xd30898ECdc21C72250a5fd1dbD37FF7D63237Db5), [0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10](https://etherscan.io/address/0x7785bccF9110C188Dad39bE49D4Cdf6c6CC03F10), [0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5](https://etherscan.io/address/0x4D9b22B92Ff9faFAc013f82faCA88BDa8E778cb5), [0xF801886AE2e127A269B0F11892edb54F692d02dF](https://etherscan.io/address/0xF801886AE2e127A269B0F11892edb54F692d02dF), [0xC75EFCffEE930706daec5CaCA012551f6a1845D7](https://etherscan.io/address/0xC75EFCffEE930706daec5CaCA012551f6a1845D7), [0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9](https://etherscan.io/address/0x24a257B7D975E7ec6219C4cFCbcF6E504253c7A9), [0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92](https://etherscan.io/address/0xd8F26118505417Ef6468Ac8A2AE1E5117245Db92), [0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5](https://etherscan.io/address/0xcC1A2bd1a459be0C7fAd3B7F9Fa9a6CBBFE9BFa5) ## Smart contracts ![A diagram of the smart contract architecture](https://ethbeat.org/static/images/architecture/zklinknova.99fd14e7.png) Explore these contracts and permissions in Disco, ETHBEAT's contract explorer: https://disco.ethbeat.org/ui/p/zklinknova ### Linea #### LineaL1ERC20Bridge Addresses: [0x62cE247f34dc316f93D3830e4Bf10959FCe630f8](https://lineascan.build/address/0x62cE247f34dc316f93D3830e4Bf10959FCe630f8#code), [0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A](https://lineascan.build/address/0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A#code) (Implementation (Upgradable)), [0xeF528a8Ca4B6aFDB6716Ef9f11bCa0c5C47454ec](https://lineascan.build/address/0xeF528a8Ca4B6aFDB6716Ef9f11bCa0c5C47454ec#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 4mo) - 2024-04-03 12:30 UTC, upgrade of [LineaL1ERC20Bridge](https://lineascan.build/address/0x62cE247f34dc316f93D3830e4Bf10959FCe630f8#code): transaction [0x151e5e3496cc0cfa545a4515a036154bb172dea85ccafce5563b408a83793570](https://lineascan.build/tx/0x151e5e3496cc0cfa545a4515a036154bb172dea85ccafce5563b408a83793570), implementations: [0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A](https://lineascan.build/address/0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A#code) ([diff](https://disco.ethbeat.org/diff/linea:0xB8017A397E7844635c5a2750d0BEB2af97506461/linea:0xDe1d7311d3eb7bc94f7EBAEd86978d3a82d5328A)) - 2024-02-29 14:48 UTC, deployment of [LineaL1ERC20Bridge](https://lineascan.build/address/0x62cE247f34dc316f93D3830e4Bf10959FCe630f8#code): transaction [0xd4a7bf62cc26e7852b2f27b65739c9d3fb4c0f7ad57757d0a854391c9b1395c3](https://lineascan.build/tx/0xd4a7bf62cc26e7852b2f27b65739c9d3fb4c0f7ad57757d0a854391c9b1395c3), implementations: [0xB8017A397E7844635c5a2750d0BEB2af97506461](https://lineascan.build/address/0xB8017A397E7844635c5a2750d0BEB2af97506461#code) Main entry point for depositing ERC20 tokens from Linea to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: LineaOwner with no delay #### LineazkLink Addresses: [0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code), [0x6a91814E3481967Ea350398cf748aB845DF43c05](https://lineascan.build/address/0x6a91814E3481967Ea350398cf748aB845DF43c05#code) (Implementation #1 (Upgradable)), [0xF3d053C29666D653Fa8629190579844BffE9FB92](https://lineascan.build/address/0xF3d053C29666D653Fa8629190579844BffE9FB92#code) (Implementation #2 (Upgradable)), [0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e](https://lineascan.build/address/0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e#code) (Implementation #3 (Upgradable)), [0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488](https://lineascan.build/address/0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488#code) (Implementation #4 (Upgradable)) **Past upgrades** (Count of upgrades: 6, Last upgrade: 1y 5mo ago, Avg upgrade interval: 4mo 19d) - 2025-05-14 03:35 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0xc126f92dc36c78ecb4aac331b0cc9e92ba1693d8b1a83981f4cb789cd1c55a6b](https://lineascan.build/tx/0xc126f92dc36c78ecb4aac331b0cc9e92ba1693d8b1a83981f4cb789cd1c55a6b), implementations: [0x6a91814E3481967Ea350398cf748aB845DF43c05](https://lineascan.build/address/0x6a91814E3481967Ea350398cf748aB845DF43c05#code) ([diff](https://disco.ethbeat.org/diff/linea:0xB76Ee80B3344D86580C990638bDE1915E58d2c6f/linea:0x6a91814E3481967Ea350398cf748aB845DF43c05)), [0xF3d053C29666D653Fa8629190579844BffE9FB92](https://lineascan.build/address/0xF3d053C29666D653Fa8629190579844BffE9FB92#code) ([diff](https://disco.ethbeat.org/diff/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92)), [0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e](https://lineascan.build/address/0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e#code) ([diff](https://disco.ethbeat.org/diff/linea:0x495220D99B432b0de3e1F1fe206AA0E26A051C63/linea:0xa3A4de013fbC21F46a3AB0F504dcEFfAd217252e)), [0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488](https://lineascan.build/address/0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488#code) ([diff](https://disco.ethbeat.org/diff/linea:0x9f2E11F287733c4EF5B9A6ED923b780c28062727/linea:0xFF6e83e6A5cc362b8B40d819fBE7840aD13A3488)) - 2024-05-22 15:53 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x63cc92d7d7f235ed4094027a72b93973cb159c4cca509f669668032a0b6d9e96](https://lineascan.build/tx/0x63cc92d7d7f235ed4094027a72b93973cb159c4cca509f669668032a0b6d9e96), implementations: [0xB76Ee80B3344D86580C990638bDE1915E58d2c6f](https://lineascan.build/address/0xB76Ee80B3344D86580C990638bDE1915E58d2c6f#code) ([diff](https://disco.ethbeat.org/diff/linea:0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC/linea:0xB76Ee80B3344D86580C990638bDE1915E58d2c6f)), [0xF3d053C29666D653Fa8629190579844BffE9FB92](https://lineascan.build/address/0xF3d053C29666D653Fa8629190579844BffE9FB92#code) ([diff](https://disco.ethbeat.org/diff/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92)), [0x495220D99B432b0de3e1F1fe206AA0E26A051C63](https://lineascan.build/address/0x495220D99B432b0de3e1F1fe206AA0E26A051C63#code) ([diff](https://disco.ethbeat.org/diff/linea:0x253AbB100Dd2606e73E41A26D03269fd13de5548/linea:0x495220D99B432b0de3e1F1fe206AA0E26A051C63)), [0x9f2E11F287733c4EF5B9A6ED923b780c28062727](https://lineascan.build/address/0x9f2E11F287733c4EF5B9A6ED923b780c28062727#code) ([diff](https://disco.ethbeat.org/diff/linea:0x268F47D6058c3122131e2f8Df1B634793e4B0a7c/linea:0x9f2E11F287733c4EF5B9A6ED923b780c28062727)) - 2024-04-23 02:48 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x72a67f79ae66e93c75e22e06ccc384e73bcf1be4dfb587597aee5467c7f2bddf](https://lineascan.build/tx/0x72a67f79ae66e93c75e22e06ccc384e73bcf1be4dfb587597aee5467c7f2bddf), implementations: [0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC](https://lineascan.build/address/0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC#code) ([diff](https://disco.ethbeat.org/diff/linea:0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503/linea:0x2b1f8EcEc8C5E09395D83910b5Cbf0E149E271DC)), [0xF3d053C29666D653Fa8629190579844BffE9FB92](https://lineascan.build/address/0xF3d053C29666D653Fa8629190579844BffE9FB92#code) ([diff](https://disco.ethbeat.org/diff/linea:0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB/linea:0xF3d053C29666D653Fa8629190579844BffE9FB92)), [0x253AbB100Dd2606e73E41A26D03269fd13de5548](https://lineascan.build/address/0x253AbB100Dd2606e73E41A26D03269fd13de5548#code) ([diff](https://disco.ethbeat.org/diff/linea:0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA/linea:0x253AbB100Dd2606e73E41A26D03269fd13de5548)), [0x268F47D6058c3122131e2f8Df1B634793e4B0a7c](https://lineascan.build/address/0x268F47D6058c3122131e2f8Df1B634793e4B0a7c#code) ([diff](https://disco.ethbeat.org/diff/linea:0x1b19287CE898217D937571EABa97ec50F27d1206/linea:0x268F47D6058c3122131e2f8Df1B634793e4B0a7c)) - 2024-03-09 10:02 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0xe5ccaa4de67ac346e3a8360734dc8d32e894e60ef78686734428bc400f621781](https://lineascan.build/tx/0xe5ccaa4de67ac346e3a8360734dc8d32e894e60ef78686734428bc400f621781), implementations: [0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503](https://lineascan.build/address/0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503#code) ([diff](https://disco.ethbeat.org/diff/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049/linea:0xcE8E69a2685c80Eb6bd825d0552f44BB34f35503)), [0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB](https://lineascan.build/address/0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB#code) ([diff](https://disco.ethbeat.org/diff/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0/linea:0xb1d0354063527E4426c4bEcbDB75fE0fb112e3CB)), [0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA](https://lineascan.build/address/0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA#code) ([diff](https://disco.ethbeat.org/diff/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0/linea:0x11bf5BC6327f7BECB0AE753932A181c8fB5780bA)), [0x1b19287CE898217D937571EABa97ec50F27d1206](https://lineascan.build/address/0x1b19287CE898217D937571EABa97ec50F27d1206#code) ([diff](https://disco.ethbeat.org/diff/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c/linea:0x1b19287CE898217D937571EABa97ec50F27d1206)) - 2024-03-09 09:54 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0xdc95a41e73ce7a4cb3200d9b2ecdcb33b548678392e2ac62e35dfc10e37f3308](https://lineascan.build/tx/0xdc95a41e73ce7a4cb3200d9b2ecdcb33b548678392e2ac62e35dfc10e37f3308), implementations: [0x73B076425025A3Bf059001D5bE0E21384C8cf049](https://lineascan.build/address/0x73B076425025A3Bf059001D5bE0E21384C8cf049#code) ([diff](https://disco.ethbeat.org/diff/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049)), [0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0](https://lineascan.build/address/0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0#code) ([diff](https://disco.ethbeat.org/diff/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0)), [0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0](https://lineascan.build/address/0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0#code) ([diff](https://disco.ethbeat.org/diff/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0)), [0x841f709F4219a1283300c0250cA7c582aD2B289c](https://lineascan.build/address/0x841f709F4219a1283300c0250cA7c582aD2B289c#code) ([diff](https://disco.ethbeat.org/diff/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c)) - 2024-03-04 03:26 UTC, upgrade of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x33b1bba23b3c4bf16fb2b10b47dfda138dc2ff659fc32e2d0926b716e76f3dbc](https://lineascan.build/tx/0x33b1bba23b3c4bf16fb2b10b47dfda138dc2ff659fc32e2d0926b716e76f3dbc), implementations: [0x73B076425025A3Bf059001D5bE0E21384C8cf049](https://lineascan.build/address/0x73B076425025A3Bf059001D5bE0E21384C8cf049#code) ([diff](https://disco.ethbeat.org/diff/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049/linea:0x73B076425025A3Bf059001D5bE0E21384C8cf049)), [0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0](https://lineascan.build/address/0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0#code) ([diff](https://disco.ethbeat.org/diff/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0/linea:0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0)), [0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0](https://lineascan.build/address/0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0#code) ([diff](https://disco.ethbeat.org/diff/linea:0x6052B353022dA2C61a999bf081C349260de993Af/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0)), [0x841f709F4219a1283300c0250cA7c582aD2B289c](https://lineascan.build/address/0x841f709F4219a1283300c0250cA7c582aD2B289c#code) ([diff](https://disco.ethbeat.org/diff/linea:0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0/linea:0x841f709F4219a1283300c0250cA7c582aD2B289c)) - 2024-02-29 14:48 UTC, deployment of [LineazkLink](https://lineascan.build/address/0x5Cb18b6e4e6F3b46Ce646b0f4704D53724C5Df05#code): transaction [0x819d006b90a1059b199bc80dd0bdc799ff3bfc4835056c5a818ebe4d6e7a0b2e](https://lineascan.build/tx/0x819d006b90a1059b199bc80dd0bdc799ff3bfc4835056c5a818ebe4d6e7a0b2e), implementations: [0x73B076425025A3Bf059001D5bE0E21384C8cf049](https://lineascan.build/address/0x73B076425025A3Bf059001D5bE0E21384C8cf049#code), [0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0](https://lineascan.build/address/0xfE3EB2e5AfaA936093C0DD2dB8898F4a2643FfE0#code), [0x6052B353022dA2C61a999bf081C349260de993Af](https://lineascan.build/address/0x6052B353022dA2C61a999bf081C349260de993Af#code), [0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0](https://lineascan.build/address/0x5e7077bf147Fc1Bb8f46039cc40bBd39F2dDfEa0#code) Main contract of the system where blocks are committed, proven and executed. It syncs messages from secondary chains ("slow" path) and accepts "fast" forwarded requests from permissioned validators that are later cross-checked with the slow path. ETH coming from secondary chains are transferred and escrowed here. State roots are then synced back to the secondary chains. Can be upgraded by: LineaOwner with no delay #### LineaL2Gateway Addresses: [0x7b5780d6df85A7dF96a3e1A019639a1dbDe937dB](https://lineascan.build/address/0x7b5780d6df85A7dF96a3e1A019639a1dbDe937dB#code), [0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518](https://lineascan.build/address/0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518#code) (Implementation (Upgradable)), [0x0Bff4B38792a95314b3463E1Bf9831BDa1995391](https://lineascan.build/address/0x0Bff4B38792a95314b3463E1Bf9831BDa1995391#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 8mo ago, Avg upgrade interval: 1y 4mo) - 2024-03-09 10:50 UTC, upgrade of [LineaL2Gateway](https://lineascan.build/address/0x7b5780d6df85A7dF96a3e1A019639a1dbDe937dB#code): transaction [0x37af14ba1cab3bbd0b202ad21c9bd057c8d36f654ff515e18fc22af68ea72d33](https://lineascan.build/tx/0x37af14ba1cab3bbd0b202ad21c9bd057c8d36f654ff515e18fc22af68ea72d33), implementations: [0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518](https://lineascan.build/address/0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518#code) ([diff](https://disco.ethbeat.org/diff/linea:0xaFc54E8277f8Bb8c195C794B0D10D6766e89DF0a/linea:0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518)) - 2024-03-01 07:52 UTC, deployment of [LineaL2Gateway](https://lineascan.build/address/0x7b5780d6df85A7dF96a3e1A019639a1dbDe937dB#code): transaction [0xa810024f29ca544f9587b26bd9ca270c0811b58dd9fcc75ee870e24c316468cc](https://lineascan.build/tx/0xa810024f29ca544f9587b26bd9ca270c0811b58dd9fcc75ee870e24c316468cc), implementations: [0xaFc54E8277f8Bb8c195C794B0D10D6766e89DF0a](https://lineascan.build/address/0xaFc54E8277f8Bb8c195C794B0D10D6766e89DF0a#code) High level interface between the main zkLink contract and Linea's message service. Can be upgraded by: LineaOwner with no delay #### ValidatorTimelock Addresses: [0x509ff56c152315EdeE91A2e0f059195519507e01](https://lineascan.build/address/0x509ff56c152315EdeE91A2e0f059195519507e01#code) Intermediary contract between the one of the validators and the ZKsync Era diamond that can delay block execution (ie withdrawals and other L3 --> L2 messages). Currently, the delay is set to 0s. #### Verifier Addresses: [0x902C3806A84f4e855a8746e92d7F1C9a51400458](https://lineascan.build/address/0x902C3806A84f4e855a8746e92d7F1C9a51400458#code) Implements ZK proof verification logic. Can be upgraded by: LineaOwner with no delay #### Governance Addresses: [0xeF528a8Ca4B6aFDB6716Ef9f11bCa0c5C47454ec](https://lineascan.build/address/0xeF528a8Ca4B6aFDB6716Ef9f11bCa0c5C47454ec#code) Intermediary governance contract with two roles and a customizable delay. This delay is only mandatory for transactions scheduled by the Owner role and can be set by the SecurityCouncil role. The SecurityCouncil role can execute arbitrary upgrade transactions immediately. Currently the delay is set to 0s and the SecurityCouncil role is not used. ### Ethereum #### EthereumL1ERC20Bridge Addresses: [0xAd16eDCF7DEB7e90096A259c81269d811544B6B6](https://etherscan.io/address/0xAd16eDCF7DEB7e90096A259c81269d811544B6B6#code), [0x3203E813930bD710043c1d899fE38dD359307352](https://etherscan.io/address/0x3203E813930bD710043c1d899fE38dD359307352#code) (Implementation (Upgradable)), [0x315255c1bA35A1DdAc48CF054bc4e3a0929160b2](https://etherscan.io/address/0x315255c1bA35A1DdAc48CF054bc4e3a0929160b2#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 4mo) - 2024-04-04 06:23 UTC, upgrade of [EthereumL1ERC20Bridge](https://etherscan.io/address/0xAd16eDCF7DEB7e90096A259c81269d811544B6B6#code): transaction [0xc9c60ef44c8cef2b33a3f0af91e3d064ea479d616c1aafd9d2535cc377be0382](https://etherscan.io/tx/0xc9c60ef44c8cef2b33a3f0af91e3d064ea479d616c1aafd9d2535cc377be0382), implementations: [0x3203E813930bD710043c1d899fE38dD359307352](https://etherscan.io/address/0x3203E813930bD710043c1d899fE38dD359307352#code) ([diff](https://disco.ethbeat.org/diff/eth:0xc271a8e9eB2b10FCDe1709D76de6681249669D2e/eth:0x3203E813930bD710043c1d899fE38dD359307352)) - 2024-03-01 12:15 UTC, deployment of [EthereumL1ERC20Bridge](https://etherscan.io/address/0xAd16eDCF7DEB7e90096A259c81269d811544B6B6#code): transaction [0x185cdd8d3ef12b9ccfb69bde86098b46813cd9c97ceda3d290a008be59c7fd19](https://etherscan.io/tx/0x185cdd8d3ef12b9ccfb69bde86098b46813cd9c97ceda3d290a008be59c7fd19), implementations: [0xc271a8e9eB2b10FCDe1709D76de6681249669D2e](https://etherscan.io/address/0xc271a8e9eB2b10FCDe1709D76de6681249669D2e#code) Main entry point for depositing ERC20 tokens from Ethereum to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: EthereumOwner with no delay #### EthereumzkLink Addresses: [0x5fD9F73286b7E8683Bab45019C94553b93e015Cf](https://etherscan.io/address/0x5fD9F73286b7E8683Bab45019C94553b93e015Cf#code), [0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7](https://etherscan.io/address/0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 2y 6mo ago, Avg upgrade interval: 10mo 26d) - 2024-04-20 12:21 UTC, upgrade of [EthereumzkLink](https://etherscan.io/address/0x5fD9F73286b7E8683Bab45019C94553b93e015Cf#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7](https://etherscan.io/address/0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7#code) ([diff](https://disco.ethbeat.org/diff/eth:0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD/eth:0xeaC8E6c1acBabC7135Fc8357FF2D718a36177Ab7)) - 2024-03-09 10:10 UTC, upgrade of [EthereumzkLink](https://etherscan.io/address/0x5fD9F73286b7E8683Bab45019C94553b93e015Cf#code): transaction [0x6fb95bcc6d76a0ad1a5f53b1bf99fb6e40672ac789e931d5565691f473d13ced](https://etherscan.io/tx/0x6fb95bcc6d76a0ad1a5f53b1bf99fb6e40672ac789e931d5565691f473d13ced), implementations: [0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD](https://etherscan.io/address/0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD#code) ([diff](https://disco.ethbeat.org/diff/eth:0xA89aa7e3D34516EAB7129E401215d5d1239Ce715/eth:0xCC8256b3eBF21e27f04E360eED012f5752c1F5DD)) - 2024-03-01 07:39 UTC, deployment of [EthereumzkLink](https://etherscan.io/address/0x5fD9F73286b7E8683Bab45019C94553b93e015Cf#code): transaction [0xbe3c99c5f0c926495895beed70b15cbc9fe4dfb1b541d08d1c4f9b6c7ff59ce5](https://etherscan.io/tx/0xbe3c99c5f0c926495895beed70b15cbc9fe4dfb1b541d08d1c4f9b6c7ff59ce5), implementations: [0xA89aa7e3D34516EAB7129E401215d5d1239Ce715](https://etherscan.io/address/0xA89aa7e3D34516EAB7129E401215d5d1239Ce715#code) Main messaging contract on Ethereum and ETH escrow. Outgoing messages (like deposits) are sent through the EthereumL2Gateway which ultimately makes use of Ethereum's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: EthereumOwner with no delay #### EthereumL1Gateway Addresses: [0x83Bc7394738A7A084081aF22EEC0051908c0055c](https://etherscan.io/address/0x83Bc7394738A7A084081aF22EEC0051908c0055c#code), [0x65c7B3E1B877131986247B49474834b0347eF332](https://etherscan.io/address/0x65c7B3E1B877131986247B49474834b0347eF332#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 2y 6mo ago, Avg upgrade interval: 10mo 26d) - 2024-04-20 12:21 UTC, upgrade of [EthereumL1Gateway](https://etherscan.io/address/0x83Bc7394738A7A084081aF22EEC0051908c0055c#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x65c7B3E1B877131986247B49474834b0347eF332](https://etherscan.io/address/0x65c7B3E1B877131986247B49474834b0347eF332#code) ([diff](https://disco.ethbeat.org/diff/eth:0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b/eth:0x65c7B3E1B877131986247B49474834b0347eF332)) - 2024-03-09 10:41 UTC, upgrade of [EthereumL1Gateway](https://etherscan.io/address/0x83Bc7394738A7A084081aF22EEC0051908c0055c#code): transaction [0x50a3b1abdbfb058cd85b72555a8734666f7b05f5ca0c1abd82559c61b54f237e](https://etherscan.io/tx/0x50a3b1abdbfb058cd85b72555a8734666f7b05f5ca0c1abd82559c61b54f237e), implementations: [0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b](https://etherscan.io/address/0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b#code) ([diff](https://disco.ethbeat.org/diff/eth:0x87743f9CccA4a6DFbFfB2856dC6839b1919a43FB/eth:0x240cfBdb89eBc09b678b24ba5d640A27B7D3051b)) - 2024-03-01 07:42 UTC, deployment of [EthereumL1Gateway](https://etherscan.io/address/0x83Bc7394738A7A084081aF22EEC0051908c0055c#code): transaction [0x20bb9ab00c3acf52a01d22bb87c0af9ba1195ba50291c21cfc581322057d1ba4](https://etherscan.io/tx/0x20bb9ab00c3acf52a01d22bb87c0af9ba1195ba50291c21cfc581322057d1ba4), implementations: [0x87743f9CccA4a6DFbFfB2856dC6839b1919a43FB](https://etherscan.io/address/0x87743f9CccA4a6DFbFfB2856dC6839b1919a43FB#code) High level interface between the local zkLink contract and Ethereum's message service. Can be upgraded by: EthereumOwner with no delay #### Arbitrator Addresses: [0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002](https://etherscan.io/address/0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002#code), [0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34](https://etherscan.io/address/0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 2y 6mo ago, Avg upgrade interval: 10mo 26d) - 2024-04-20 12:21 UTC, upgrade of [Arbitrator](https://etherscan.io/address/0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34](https://etherscan.io/address/0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34#code) ([diff](https://disco.ethbeat.org/diff/eth:0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a/eth:0x7a0Bb4805EcB7fD3C8DAbbE4AFa0E91cB1761E34)) - 2024-03-09 10:40 UTC, upgrade of [Arbitrator](https://etherscan.io/address/0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002#code): transaction [0xd9a9e46b9d7321babc6608896c2d2438db12c25b92e96b39a705384560e4d67c](https://etherscan.io/tx/0xd9a9e46b9d7321babc6608896c2d2438db12c25b92e96b39a705384560e4d67c), implementations: [0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a](https://etherscan.io/address/0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a#code) ([diff](https://disco.ethbeat.org/diff/eth:0xD2b679671354087ead3C683F48da4b738f0fC675/eth:0xb3EE39F57d96C3F2A5ab3886572dDc4EA34B529a)) - 2024-03-01 06:39 UTC, deployment of [Arbitrator](https://etherscan.io/address/0x1Ee09A2cAa0813A5183f90F5a6d0E4871f4C6002#code): transaction [0x4982bb48f0071f234c1708804bd549ccb1b79f3eafdad5cdf644aeb3f9078553](https://etherscan.io/tx/0x4982bb48f0071f234c1708804bd549ccb1b79f3eafdad5cdf644aeb3f9078553), implementations: [0xD2b679671354087ead3C683F48da4b738f0fC675](https://etherscan.io/address/0xD2b679671354087ead3C683F48da4b738f0fC675#code) Contract storing the mapping between secondary chain bridges and acts as an intermediary to receive and relay messages to and from the main zkLink contract. Can be upgraded by: EthereumOwner with no delay #### LineaL1Gateway Addresses: [0x803460416C2682Ac54FccF03eF77b10A12f2809b](https://etherscan.io/address/0x803460416C2682Ac54FccF03eF77b10A12f2809b#code), [0xD2ED3FA35be899fe850075946Fc7320bB4c18C29](https://etherscan.io/address/0xD2ED3FA35be899fe850075946Fc7320bB4c18C29#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 8mo ago, Avg upgrade interval: 1y 4mo) - 2024-03-09 10:45 UTC, upgrade of [LineaL1Gateway](https://etherscan.io/address/0x803460416C2682Ac54FccF03eF77b10A12f2809b#code): transaction [0x2010b0544391cadef00257da2bf40d85288c1fc2bcc63e611cf89f5bd8e1d951](https://etherscan.io/tx/0x2010b0544391cadef00257da2bf40d85288c1fc2bcc63e611cf89f5bd8e1d951), implementations: [0xD2ED3FA35be899fe850075946Fc7320bB4c18C29](https://etherscan.io/address/0xD2ED3FA35be899fe850075946Fc7320bB4c18C29#code) ([diff](https://disco.ethbeat.org/diff/eth:0x67EBB0b6273A2e5728410Af81609226A96ACcb3e/eth:0xD2ED3FA35be899fe850075946Fc7320bB4c18C29)) - 2024-03-01 08:16 UTC, deployment of [LineaL1Gateway](https://etherscan.io/address/0x803460416C2682Ac54FccF03eF77b10A12f2809b#code): transaction [0x01bb57dff1464aa31b2871caddf2cd239068df11076fea2d6e041275eb5fc701](https://etherscan.io/tx/0x01bb57dff1464aa31b2871caddf2cd239068df11076fea2d6e041275eb5fc701), implementations: [0x67EBB0b6273A2e5728410Af81609226A96ACcb3e](https://etherscan.io/address/0x67EBB0b6273A2e5728410Af81609226A96ACcb3e#code) L1 counterpart receiving messages from the LineaL2Gateway on Linea. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### MantaL1Gateway Addresses: [0x649Dfa2c4d09D877419fA1eDC4005BfbEF7CD82D](https://etherscan.io/address/0x649Dfa2c4d09D877419fA1eDC4005BfbEF7CD82D#code), [0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962](https://etherscan.io/address/0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 8mo ago, Avg upgrade interval: 1y 4mo) - 2024-03-09 10:47 UTC, upgrade of [MantaL1Gateway](https://etherscan.io/address/0x649Dfa2c4d09D877419fA1eDC4005BfbEF7CD82D#code): transaction [0xb5a1a3bd4ba7f9fb2d0f3d22755881f2d6998f9dfaf6f70194659f71aedf86b8](https://etherscan.io/tx/0xb5a1a3bd4ba7f9fb2d0f3d22755881f2d6998f9dfaf6f70194659f71aedf86b8), implementations: [0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962](https://etherscan.io/address/0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962#code) ([diff](https://disco.ethbeat.org/diff/eth:0x161f4BAAb4052f20F5f4347eC4422556aA0477f0/eth:0x6d6Ce5A491cC2BE2f56AA02aa68AaE8acE927962)) - 2024-03-01 08:18 UTC, deployment of [MantaL1Gateway](https://etherscan.io/address/0x649Dfa2c4d09D877419fA1eDC4005BfbEF7CD82D#code): transaction [0x4edc02a8e19662c19aa6263b39b11c5faa8be3312a83505f79e1c64352b20c53](https://etherscan.io/tx/0x4edc02a8e19662c19aa6263b39b11c5faa8be3312a83505f79e1c64352b20c53), implementations: [0x161f4BAAb4052f20F5f4347eC4422556aA0477f0](https://etherscan.io/address/0x161f4BAAb4052f20F5f4347eC4422556aA0477f0#code) L1 counterpart receiving messages from the MantaL2Gateway on Manta Pacific. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### MantleL1Gateway Addresses: [0xdE1Ce751405Fe6D836349226EEdCDFFE1C3BE269](https://etherscan.io/address/0xdE1Ce751405Fe6D836349226EEdCDFFE1C3BE269#code), [0xe98EDDAd1f49abc7586eE516d019D834FBDc2951](https://etherscan.io/address/0xe98EDDAd1f49abc7586eE516d019D834FBDc2951#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 8mo ago, Avg upgrade interval: 1y 4mo) - 2024-03-09 10:46 UTC, upgrade of [MantleL1Gateway](https://etherscan.io/address/0xdE1Ce751405Fe6D836349226EEdCDFFE1C3BE269#code): transaction [0x36b3bf7e49f03b37dc4fc5ffc4086d6a93dfea8536e80ffde066de879db7f2cd](https://etherscan.io/tx/0x36b3bf7e49f03b37dc4fc5ffc4086d6a93dfea8536e80ffde066de879db7f2cd), implementations: [0xe98EDDAd1f49abc7586eE516d019D834FBDc2951](https://etherscan.io/address/0xe98EDDAd1f49abc7586eE516d019D834FBDc2951#code) ([diff](https://disco.ethbeat.org/diff/eth:0xa86ef37098C0507196A5f411AfFbf8f51FCe9637/eth:0xe98EDDAd1f49abc7586eE516d019D834FBDc2951)) - 2024-03-01 08:20 UTC, deployment of [MantleL1Gateway](https://etherscan.io/address/0xdE1Ce751405Fe6D836349226EEdCDFFE1C3BE269#code): transaction [0x373a2fba4cbf35d0dbe1e93d4c3d3a5cec9853c84b81b6088f3aa6990f22f4f1](https://etherscan.io/tx/0x373a2fba4cbf35d0dbe1e93d4c3d3a5cec9853c84b81b6088f3aa6990f22f4f1), implementations: [0xa86ef37098C0507196A5f411AfFbf8f51FCe9637](https://etherscan.io/address/0xa86ef37098C0507196A5f411AfFbf8f51FCe9637#code) L1 counterpart receiving messages from the MantleL2Gateway on Mantle. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### EraL1Gateway Addresses: [0xeCD189e0f390826E137496a4e4a23ACf76c942Ab](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code), [0x59Ad3580c9e0992D474954327f5879AF5B3e4a22](https://etherscan.io/address/0x59Ad3580c9e0992D474954327f5879AF5B3e4a22#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 3, Last upgrade: 2y 6mo ago, Avg upgrade interval: 8mo 4d) - 2024-04-20 12:21 UTC, upgrade of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x59Ad3580c9e0992D474954327f5879AF5B3e4a22](https://etherscan.io/address/0x59Ad3580c9e0992D474954327f5879AF5B3e4a22#code) ([diff](https://disco.ethbeat.org/diff/eth:0x8915B1750f337342F2b6A2eF1BF12e279e3b497E/eth:0x59Ad3580c9e0992D474954327f5879AF5B3e4a22)) - 2024-03-09 10:44 UTC, upgrade of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0x337b3879d9a4e751f6aff14cdb948d3b5cb63cbb60233cbd789adca9205d4aaa](https://etherscan.io/tx/0x337b3879d9a4e751f6aff14cdb948d3b5cb63cbb60233cbd789adca9205d4aaa), implementations: [0x8915B1750f337342F2b6A2eF1BF12e279e3b497E](https://etherscan.io/address/0x8915B1750f337342F2b6A2eF1BF12e279e3b497E#code) ([diff](https://disco.ethbeat.org/diff/eth:0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716/eth:0x8915B1750f337342F2b6A2eF1BF12e279e3b497E)) - 2024-03-05 07:02 UTC, upgrade of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0xc24ab17a2b61d12b44999bbb861baf3f0f73b59881c80fae8c9763f83c7d1219](https://etherscan.io/tx/0xc24ab17a2b61d12b44999bbb861baf3f0f73b59881c80fae8c9763f83c7d1219), implementations: [0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716](https://etherscan.io/address/0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716#code) ([diff](https://disco.ethbeat.org/diff/eth:0xFF2568C81453a0741b1b97f3Fe598B07a927d79E/eth:0x04bF7cf48a68dfC744fc22662B90e2ecaf14D716)) - 2024-03-01 08:22 UTC, deployment of [EraL1Gateway](https://etherscan.io/address/0xeCD189e0f390826E137496a4e4a23ACf76c942Ab#code): transaction [0xa8070c4addf0258525ca69e13ee1d2d7a5098c0a7ffd29ec28f1920f4fc465b8](https://etherscan.io/tx/0xa8070c4addf0258525ca69e13ee1d2d7a5098c0a7ffd29ec28f1920f4fc465b8), implementations: [0xFF2568C81453a0741b1b97f3Fe598B07a927d79E](https://etherscan.io/address/0xFF2568C81453a0741b1b97f3Fe598B07a927d79E#code) L1 counterpart receiving messages from the EraL2Gateway on ZKsync Era. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### ArbitrumL1Gateway Addresses: [0x273D59aed2d793167c162E64b9162154B07583C0](https://etherscan.io/address/0x273D59aed2d793167c162E64b9162154B07583C0#code), [0xF69302b6fF21116F9266bFA2fbE4ee23f6292875](https://etherscan.io/address/0xF69302b6fF21116F9266bFA2fbE4ee23f6292875#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 8mo ago, Avg upgrade interval: 1y 4mo) - 2024-03-09 10:43 UTC, upgrade of [ArbitrumL1Gateway](https://etherscan.io/address/0x273D59aed2d793167c162E64b9162154B07583C0#code): transaction [0x57a6a5ba63d2b0b231901f39e869036ada97f0c769faca33f45fcce37eb21aad](https://etherscan.io/tx/0x57a6a5ba63d2b0b231901f39e869036ada97f0c769faca33f45fcce37eb21aad), implementations: [0xF69302b6fF21116F9266bFA2fbE4ee23f6292875](https://etherscan.io/address/0xF69302b6fF21116F9266bFA2fbE4ee23f6292875#code) ([diff](https://disco.ethbeat.org/diff/eth:0xa005091c98e6793b90E1340Bbd36C5d6De36fB60/eth:0xF69302b6fF21116F9266bFA2fbE4ee23f6292875)) - 2024-03-01 08:23 UTC, deployment of [ArbitrumL1Gateway](https://etherscan.io/address/0x273D59aed2d793167c162E64b9162154B07583C0#code): transaction [0x8ff3969fc5600c4a0f42b86a858be420ac1eb3005ca3a5766fa04844dd8cbfa1](https://etherscan.io/tx/0x8ff3969fc5600c4a0f42b86a858be420ac1eb3005ca3a5766fa04844dd8cbfa1), implementations: [0xa005091c98e6793b90E1340Bbd36C5d6De36fB60](https://etherscan.io/address/0xa005091c98e6793b90E1340Bbd36C5d6De36fB60#code) L1 counterpart receiving messages from the ArbitrumL2Gateway on Arbitrum One. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### BlastL1Gateway Addresses: [0x41FaF46Ca4Dfd912B65B66D29BdD432782BB1158](https://etherscan.io/address/0x41FaF46Ca4Dfd912B65B66D29BdD432782BB1158#code), [0x01334Df58feE28db184ae9D11467F38F7437FD80](https://etherscan.io/address/0x01334Df58feE28db184ae9D11467F38F7437FD80#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 6mo ago, Avg upgrade interval: 1y 3mo) - 2024-04-20 12:21 UTC, upgrade of [BlastL1Gateway](https://etherscan.io/address/0x41FaF46Ca4Dfd912B65B66D29BdD432782BB1158#code): transaction [0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f](https://etherscan.io/tx/0xee6a34e852c4927c2afcf361307e2245771cf97a2e57f02f46ce8e9dfdd4771f), implementations: [0x01334Df58feE28db184ae9D11467F38F7437FD80](https://etherscan.io/address/0x01334Df58feE28db184ae9D11467F38F7437FD80#code) ([diff](https://disco.ethbeat.org/diff/eth:0x1DFF9a84A7Df94084995cAE2feac4a31fBCf4c9E/eth:0x01334Df58feE28db184ae9D11467F38F7437FD80)) - 2024-03-14 12:14 UTC, deployment of [BlastL1Gateway](https://etherscan.io/address/0x41FaF46Ca4Dfd912B65B66D29BdD432782BB1158#code): transaction [0x5d17ffa3cd6b87a4abf52debbd5348ecdd275b5d20733277c7ac517cfa61f901](https://etherscan.io/tx/0x5d17ffa3cd6b87a4abf52debbd5348ecdd275b5d20733277c7ac517cfa61f901), implementations: [0x1DFF9a84A7Df94084995cAE2feac4a31fBCf4c9E](https://etherscan.io/address/0x1DFF9a84A7Df94084995cAE2feac4a31fBCf4c9E#code) L1 counterpart receiving messages from the BlastL2Gateway on Blast. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### OptimismL1Gateway Addresses: [0x668e8F67adB8219e1816C2E5bBEa055A78AF3026](https://etherscan.io/address/0x668e8F67adB8219e1816C2E5bBEa055A78AF3026#code), [0x2e8AD1434663b209EE59eF1a6612114239F4a190](https://etherscan.io/address/0x2e8AD1434663b209EE59eF1a6612114239F4a190#code) (Implementation (Upgradable)), [0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9](https://etherscan.io/address/0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-03-22 07:31 UTC, deployment of [OptimismL1Gateway](https://etherscan.io/address/0x668e8F67adB8219e1816C2E5bBEa055A78AF3026#code): transaction [0x70ae3fc5f6442e19741bfcf455957088729aee976bb1b80d7224c4a37d2ce6bd](https://etherscan.io/tx/0x70ae3fc5f6442e19741bfcf455957088729aee976bb1b80d7224c4a37d2ce6bd), implementations: [0x2e8AD1434663b209EE59eF1a6612114239F4a190](https://etherscan.io/address/0x2e8AD1434663b209EE59eF1a6612114239F4a190#code) L1 counterpart receiving messages from the OptimismL2Gateway on OP Mainnet. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### BaseL1Gateway Addresses: [0x4eEA93966AA5cd658225E0D43b665A5a491d2b7E](https://etherscan.io/address/0x4eEA93966AA5cd658225E0D43b665A5a491d2b7E#code), [0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518](https://etherscan.io/address/0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518#code) (Implementation (Upgradable)), [0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9](https://etherscan.io/address/0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-03-22 08:24 UTC, deployment of [BaseL1Gateway](https://etherscan.io/address/0x4eEA93966AA5cd658225E0D43b665A5a491d2b7E#code): transaction [0x93767478c99ec84e15e69f2f18adb4fef4e1017c524c44088168d95d60d17419](https://etherscan.io/tx/0x93767478c99ec84e15e69f2f18adb4fef4e1017c524c44088168d95d60d17419), implementations: [0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518](https://etherscan.io/address/0x0C25f3ACCB17a9D60408D1c79bD7218073DAd518#code) L1 counterpart receiving messages from the BaseL2Gateway on Base. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay #### ScrollL1Gateway Addresses: [0x986c905087a663db3C81ad319b94c1E9dd388e92](https://etherscan.io/address/0x986c905087a663db3C81ad319b94c1E9dd388e92#code), [0xdB97dBF9c0A20aA8B4787563B6bE04e83E7ECDFB](https://etherscan.io/address/0xdB97dBF9c0A20aA8B4787563B6bE04e83E7ECDFB#code) (Implementation (Upgradable)), [0xdb4D755E3b8735314147b9bB146327C269701E2D](https://etherscan.io/address/0xdb4D755E3b8735314147b9bB146327C269701E2D#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-06-10 07:33 UTC, deployment of [ScrollL1Gateway](https://etherscan.io/address/0x986c905087a663db3C81ad319b94c1E9dd388e92#code): transaction [0x380f252111050403dc380bc5b2b0f894555743e4bcec985e41602b9abb40e2de](https://etherscan.io/tx/0x380f252111050403dc380bc5b2b0f894555743e4bcec985e41602b9abb40e2de), implementations: [0xdB97dBF9c0A20aA8B4787563B6bE04e83E7ECDFB](https://etherscan.io/address/0xdB97dBF9c0A20aA8B4787563B6bE04e83E7ECDFB#code) L1 counterpart receiving messages from the ScrollL2Gateway on Scroll. It redirects them to the Arbitrator contract. Can be upgraded by: EthereumOwner with no delay ### OP Mainnet #### OptimismL1ERC20Bridge Addresses: [0x5Bd51296423A9079b931414C1De65e7057326EaA](https://optimistic.etherscan.io/address/0x5Bd51296423A9079b931414C1De65e7057326EaA#code), [0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8](https://optimistic.etherscan.io/address/0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8#code) (Implementation (Upgradable)), [0xA688B4E1375Ed6b9129dF4959da4a271B33e50a4](https://optimistic.etherscan.io/address/0xA688B4E1375Ed6b9129dF4959da4a271B33e50a4#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 3mo) - 2024-04-04 06:24 UTC, upgrade of [OptimismL1ERC20Bridge](https://optimistic.etherscan.io/address/0x5Bd51296423A9079b931414C1De65e7057326EaA#code): transaction [0x5154061f44b9d3baf51c0211c4a0126b47486e3e06d89006106034afd62e24f8](https://optimistic.etherscan.io/tx/0x5154061f44b9d3baf51c0211c4a0126b47486e3e06d89006106034afd62e24f8), implementations: [0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8](https://optimistic.etherscan.io/address/0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8#code) ([diff](https://disco.ethbeat.org/diff/oeth:0x683669E5B6cDc6636673a5f7ddB68E20812216F5/oeth:0x21Fe89FfB96d4092b42c8ab35dcFEee50a86C3B8)) - 2024-03-22 08:18 UTC, deployment of [OptimismL1ERC20Bridge](https://optimistic.etherscan.io/address/0x5Bd51296423A9079b931414C1De65e7057326EaA#code): transaction [0x965f198c04e811f47221086ef6452f50af7e949ff2f5bb10125ba1a516999e44](https://optimistic.etherscan.io/tx/0x965f198c04e811f47221086ef6452f50af7e949ff2f5bb10125ba1a516999e44), implementations: [0x683669E5B6cDc6636673a5f7ddB68E20812216F5](https://optimistic.etherscan.io/address/0x683669E5B6cDc6636673a5f7ddB68E20812216F5#code) Main entry point for depositing ERC20 tokens from OP Mainnet to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: OptimismOwner with no delay #### OptimismzkLink Addresses: [0x46C8D02E93d5a03899dFa7Cf8A40A07589A3fA1b](https://optimistic.etherscan.io/address/0x46C8D02E93d5a03899dFa7Cf8A40A07589A3fA1b#code), [0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E](https://optimistic.etherscan.io/address/0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E#code) (Implementation (Upgradable)), [0x2c3FF918E3925CC3ba95f41307D1cfBEFDF93dB9](https://optimistic.etherscan.io/address/0x2c3FF918E3925CC3ba95f41307D1cfBEFDF93dB9#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 6mo ago, Avg upgrade interval: 1y 3mo) - 2024-04-18 13:21 UTC, upgrade of [OptimismzkLink](https://optimistic.etherscan.io/address/0x46C8D02E93d5a03899dFa7Cf8A40A07589A3fA1b#code): transaction [0xc9ff607b3fb208f26fadc47cde08c41273c79039e1f7bf2c9f5313d4b3869107](https://optimistic.etherscan.io/tx/0xc9ff607b3fb208f26fadc47cde08c41273c79039e1f7bf2c9f5313d4b3869107), implementations: [0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E](https://optimistic.etherscan.io/address/0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E#code) ([diff](https://disco.ethbeat.org/diff/oeth:0xebdA7f097EF976e8E82FA11F05ef1906f3068105/oeth:0xe71A6Cfb42D0398f6d6aeD8a19987C83bbE3B86E)) - 2024-03-22 07:28 UTC, deployment of [OptimismzkLink](https://optimistic.etherscan.io/address/0x46C8D02E93d5a03899dFa7Cf8A40A07589A3fA1b#code): transaction [0x412ad99eb52f12520a7367ec39f9b56a06e25aa1b17847dbe23f6700baa4bfaa](https://optimistic.etherscan.io/tx/0x412ad99eb52f12520a7367ec39f9b56a06e25aa1b17847dbe23f6700baa4bfaa), implementations: [0xebdA7f097EF976e8E82FA11F05ef1906f3068105](https://optimistic.etherscan.io/address/0xebdA7f097EF976e8E82FA11F05ef1906f3068105#code) Main messaging contract on OP Mainnet and ETH escrow. Outgoing messages (like deposits) are sent through the OptimismL2Gateway which ultimately makes use of OP Mainnet's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: OptimismOwner with no delay #### OptimismL2Gateway Addresses: [0xaD5d729291C0d6A299E370814CA6Ce1c8C25b51c](https://optimistic.etherscan.io/address/0xaD5d729291C0d6A299E370814CA6Ce1c8C25b51c#code), [0x3C3f4b866f8c6F0D2c912feE36D5Ad337a9AA98e](https://optimistic.etherscan.io/address/0x3C3f4b866f8c6F0D2c912feE36D5Ad337a9AA98e#code) (Implementation (Upgradable)), [0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9](https://optimistic.etherscan.io/address/0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-03-22 07:29 UTC, deployment of [OptimismL2Gateway](https://optimistic.etherscan.io/address/0xaD5d729291C0d6A299E370814CA6Ce1c8C25b51c#code): transaction [0x2da77621f5936cebac55ac1c25951289f2aad1fae1a7a0ccb8388b2332f804e4](https://optimistic.etherscan.io/tx/0x2da77621f5936cebac55ac1c25951289f2aad1fae1a7a0ccb8388b2332f804e4), implementations: [0x3C3f4b866f8c6F0D2c912feE36D5Ad337a9AA98e](https://optimistic.etherscan.io/address/0x3C3f4b866f8c6F0D2c912feE36D5Ad337a9AA98e#code) High level interface between the local zkLink contract and OP's message service. Can be upgraded by: OptimismOwner with no delay ### Arbitrum One #### ArbitrumL1ERC20Bridge Addresses: [0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585](https://arbiscan.io/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code), [0x1202e0557A23531D09015C802e993d6423685FfB](https://arbiscan.io/address/0x1202e0557A23531D09015C802e993d6423685FfB#code) (Implementation (Upgradable)), [0x48698A17D193bFc882395AC06a1DEdbb222F2917](https://arbiscan.io/address/0x48698A17D193bFc882395AC06a1DEdbb222F2917#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 4mo) - 2024-04-04 06:25 UTC, upgrade of [ArbitrumL1ERC20Bridge](https://arbiscan.io/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code): transaction [0x99c592973087e232fa0685460c1e5992ef3a5cd0d80e8c6739d738b08787bece](https://arbiscan.io/tx/0x99c592973087e232fa0685460c1e5992ef3a5cd0d80e8c6739d738b08787bece), implementations: [0x1202e0557A23531D09015C802e993d6423685FfB](https://arbiscan.io/address/0x1202e0557A23531D09015C802e993d6423685FfB#code) ([diff](https://disco.ethbeat.org/diff/arb1:0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c/arb1:0x1202e0557A23531D09015C802e993d6423685FfB)) - 2024-03-01 12:42 UTC, deployment of [ArbitrumL1ERC20Bridge](https://arbiscan.io/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code): transaction [0x4879e7a6e35cdd40863e69eec2b64cafa514ca68ea8b4b9942c9624a18bfa2bf](https://arbiscan.io/tx/0x4879e7a6e35cdd40863e69eec2b64cafa514ca68ea8b4b9942c9624a18bfa2bf), implementations: [0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c](https://arbiscan.io/address/0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c#code) Main entry point for depositing ERC20 tokens from Arbitrum One to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: ArbitrumOwner with no delay #### ArbitrumzkLink Addresses: [0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A](https://arbiscan.io/address/0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A#code), [0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305](https://arbiscan.io/address/0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305#code) (Implementation (Upgradable)), [0xa29fFe244898CBec19DFEaAfB5cE671389FfF60F](https://arbiscan.io/address/0xa29fFe244898CBec19DFEaAfB5cE671389FfF60F#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 2y 6mo ago, Avg upgrade interval: 10mo 26d) - 2024-04-22 02:29 UTC, upgrade of [ArbitrumzkLink](https://arbiscan.io/address/0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A#code): transaction [0x22f2009bf7f9c0cec80080ccd77d22c1bcf8e318cc2d2a442cae078746f19a6e](https://arbiscan.io/tx/0x22f2009bf7f9c0cec80080ccd77d22c1bcf8e318cc2d2a442cae078746f19a6e), implementations: [0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305](https://arbiscan.io/address/0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305#code) ([diff](https://disco.ethbeat.org/diff/arb1:0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e/arb1:0xe2cd603BFAe63EEFBDf0C51485f835D8B419A305)) - 2024-03-09 10:39 UTC, upgrade of [ArbitrumzkLink](https://arbiscan.io/address/0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A#code): transaction [0x2d6ab13f653c95e66eb8f995ecec5218aaa69dc457d8c314d5c0df3383b0a7eb](https://arbiscan.io/tx/0x2d6ab13f653c95e66eb8f995ecec5218aaa69dc457d8c314d5c0df3383b0a7eb), implementations: [0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e](https://arbiscan.io/address/0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e#code) ([diff](https://disco.ethbeat.org/diff/arb1:0x50efC7f1290479cb879473512D89fDC80B726211/arb1:0x04C6a52f3bf9F73618cD70F234AdB95a73325D1e)) - 2024-03-01 08:07 UTC, deployment of [ArbitrumzkLink](https://arbiscan.io/address/0xFF73a1a1d27951A005eb23276dc99CB7F8d5420A#code): transaction [0x188f9617f4266ba6c55c01e49a2b918860f60ab012dd921f7a6bbf2478380b4b](https://arbiscan.io/tx/0x188f9617f4266ba6c55c01e49a2b918860f60ab012dd921f7a6bbf2478380b4b), implementations: [0x50efC7f1290479cb879473512D89fDC80B726211](https://arbiscan.io/address/0x50efC7f1290479cb879473512D89fDC80B726211#code) Main messaging contract on Arbitrum One and ETH escrow. Outgoing messages (like deposits) are sent through the ArbitrumL2Gateway which ultimately makes use of Arbitrum One's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: ArbitrumOwner with no delay #### ArbitrumL2Gateway Addresses: [0x7bd79DEd935B542fb22c74305a4d2A293C18483a](https://arbiscan.io/address/0x7bd79DEd935B542fb22c74305a4d2A293C18483a#code), [0x413552461b0b2c13f117d885b52AaA2f23374B1D](https://arbiscan.io/address/0x413552461b0b2c13f117d885b52AaA2f23374B1D#code) (Implementation (Upgradable)), [0xa29fFe244898CBec19DFEaAfB5cE671389FfF60F](https://arbiscan.io/address/0xa29fFe244898CBec19DFEaAfB5cE671389FfF60F#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 8mo ago, Avg upgrade interval: 1y 4mo) - 2024-03-09 10:55 UTC, upgrade of [ArbitrumL2Gateway](https://arbiscan.io/address/0x7bd79DEd935B542fb22c74305a4d2A293C18483a#code): transaction [0x2bc75a8c67da17b0d0c4543bfc3bbc51248fba5b4430ecf3f8836fe83d7b065a](https://arbiscan.io/tx/0x2bc75a8c67da17b0d0c4543bfc3bbc51248fba5b4430ecf3f8836fe83d7b065a), implementations: [0x413552461b0b2c13f117d885b52AaA2f23374B1D](https://arbiscan.io/address/0x413552461b0b2c13f117d885b52AaA2f23374B1D#code) ([diff](https://disco.ethbeat.org/diff/arb1:0xA194FB4EaB262EC9886A119609bbB2800bdD3a2E/arb1:0x413552461b0b2c13f117d885b52AaA2f23374B1D)) - 2024-03-01 08:07 UTC, deployment of [ArbitrumL2Gateway](https://arbiscan.io/address/0x7bd79DEd935B542fb22c74305a4d2A293C18483a#code): transaction [0xaa8e1f332b3da71bb09cffdf5b797cdf7bc285cfad780a78d294c02619dba31e](https://arbiscan.io/tx/0xaa8e1f332b3da71bb09cffdf5b797cdf7bc285cfad780a78d294c02619dba31e), implementations: [0xA194FB4EaB262EC9886A119609bbB2800bdD3a2E](https://arbiscan.io/address/0xA194FB4EaB262EC9886A119609bbB2800bdD3a2E#code) High level interface between the local zkLink contract and Arbitrum's message service. Can be upgraded by: ArbitrumOwner with no delay ### Base Chain #### BaseL1ERC20Bridge Addresses: [0x80d12A78EfE7604F00ed07aB2f16F643301674D5](https://basescan.org/address/0x80d12A78EfE7604F00ed07aB2f16F643301674D5#code), [0xA89aa7e3D34516EAB7129E401215d5d1239Ce715](https://basescan.org/address/0xA89aa7e3D34516EAB7129E401215d5d1239Ce715#code) (Implementation (Upgradable)), [0x85F0d9da054C5FE399E079Cc0b47de74be5b22AE](https://basescan.org/address/0x85F0d9da054C5FE399E079Cc0b47de74be5b22AE#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 3mo) - 2024-04-04 06:39 UTC, upgrade of [BaseL1ERC20Bridge](https://basescan.org/address/0x80d12A78EfE7604F00ed07aB2f16F643301674D5#code): transaction [0xe6819dfc1ae0abb6a95ad6b8778ca1ad6eda78b48e4f9685819bb09df8b5c8c8](https://basescan.org/tx/0xe6819dfc1ae0abb6a95ad6b8778ca1ad6eda78b48e4f9685819bb09df8b5c8c8), implementations: [0xA89aa7e3D34516EAB7129E401215d5d1239Ce715](https://basescan.org/address/0xA89aa7e3D34516EAB7129E401215d5d1239Ce715#code) ([diff](https://disco.ethbeat.org/diff/base:0x413552461b0b2c13f117d885b52AaA2f23374B1D/base:0xA89aa7e3D34516EAB7129E401215d5d1239Ce715)) - 2024-03-22 09:00 UTC, deployment of [BaseL1ERC20Bridge](https://basescan.org/address/0x80d12A78EfE7604F00ed07aB2f16F643301674D5#code): transaction [0xd9b67d7dc47832724dd1b7bdc7e734d949b55a7e329662ccc91016eeed6fb60a](https://basescan.org/tx/0xd9b67d7dc47832724dd1b7bdc7e734d949b55a7e329662ccc91016eeed6fb60a), implementations: [0x413552461b0b2c13f117d885b52AaA2f23374B1D](https://basescan.org/address/0x413552461b0b2c13f117d885b52AaA2f23374B1D#code) Main entry point for depositing ERC20 tokens from Base to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: BaseOwner with no delay #### BasezkLink Addresses: [0xE473ce141b1416Fe526eb63Cf7433b7B8d7264Dd](https://basescan.org/address/0xE473ce141b1416Fe526eb63Cf7433b7B8d7264Dd#code), [0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388](https://basescan.org/address/0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388#code) (Implementation (Upgradable)), [0xEf1c84A2fdCE663b75dB3F822cBe1cFddaaa162C](https://basescan.org/address/0xEf1c84A2fdCE663b75dB3F822cBe1cFddaaa162C#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 6mo ago, Avg upgrade interval: 1y 3mo) - 2024-04-18 13:24 UTC, upgrade of [BasezkLink](https://basescan.org/address/0xE473ce141b1416Fe526eb63Cf7433b7B8d7264Dd#code): transaction [0x6c9c54497c2950dfbedc2c1c5e77cfadb8381e95743c32a240d43605a7f8f2b4](https://basescan.org/tx/0x6c9c54497c2950dfbedc2c1c5e77cfadb8381e95743c32a240d43605a7f8f2b4), implementations: [0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388](https://basescan.org/address/0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388#code) ([diff](https://disco.ethbeat.org/diff/base:0x314bF0D901361F2e31A18cb3500bFD33aF51dE47/base:0x08Ca9154DA9318323D3f6DFd872f5cDC4C85E388)) - 2024-03-22 08:21 UTC, deployment of [BasezkLink](https://basescan.org/address/0xE473ce141b1416Fe526eb63Cf7433b7B8d7264Dd#code): transaction [0xb135f489f7b7bcb2593e487ba1c07df4c6bb382b98f3ee1cb37a608715f7b180](https://basescan.org/tx/0xb135f489f7b7bcb2593e487ba1c07df4c6bb382b98f3ee1cb37a608715f7b180), implementations: [0x314bF0D901361F2e31A18cb3500bFD33aF51dE47](https://basescan.org/address/0x314bF0D901361F2e31A18cb3500bFD33aF51dE47#code) Main messaging contract on Base and ETH escrow. Outgoing messages (like deposits) are sent through the BaseL2Gateway which ultimately makes use of Base's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: BaseOwner with no delay #### BaseL2Gateway Addresses: [0x1054Ff8B3B7B9F68d2e55C4A42E8952332c69011](https://basescan.org/address/0x1054Ff8B3B7B9F68d2e55C4A42E8952332c69011#code), [0x7f00134427437b2883F59EF3880597FDc836E356](https://basescan.org/address/0x7f00134427437b2883F59EF3880597FDc836E356#code) (Implementation (Upgradable)), [0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9](https://basescan.org/address/0x344A908d1a7b7d06B7AD7169C1db81fc9d496dE9#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-03-22 08:23 UTC, deployment of [BaseL2Gateway](https://basescan.org/address/0x1054Ff8B3B7B9F68d2e55C4A42E8952332c69011#code): transaction [0xceb644026cf3c4c4f5c91e64352f5b2bceaaacc69e8f3c6a23591bf29fa16978](https://basescan.org/tx/0xceb644026cf3c4c4f5c91e64352f5b2bceaaacc69e8f3c6a23591bf29fa16978), implementations: [0x7f00134427437b2883F59EF3880597FDc836E356](https://basescan.org/address/0x7f00134427437b2883F59EF3880597FDc836E356#code) High level interface between the local zkLink contract and Base's message service. Can be upgraded by: BaseOwner with no delay ### Manta Pacific #### MantaL1ERC20Bridge Addresses: [0x44a65dc12865A1e5249b45b4868f32b0E37168FF](https://pacific-explorer.manta.network/address/0x44a65dc12865A1e5249b45b4868f32b0E37168FF#code), [0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c](https://pacific-explorer.manta.network/address/0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c#code) (Implementation (Upgradable)), [0x01aFbE3D5DC8A0C8271de9bCB091224f037EfE05](https://pacific-explorer.manta.network/address/0x01aFbE3D5DC8A0C8271de9bCB091224f037EfE05#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 4mo) - 2024-04-04 06:40 UTC, upgrade of [MantaL1ERC20Bridge](https://pacific-explorer.manta.network/address/0x44a65dc12865A1e5249b45b4868f32b0E37168FF#code): transaction [0x15196bbffee8d57f18df9fead80e6301e9468716eef250ffbc5822cd435dd4a1](https://pacific-explorer.manta.network/tx/0x15196bbffee8d57f18df9fead80e6301e9468716eef250ffbc5822cd435dd4a1), implementations: [0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c](https://pacific-explorer.manta.network/address/0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c#code) ([diff](https://disco.ethbeat.org/diff/manta:0x0d53cE63f3A72879d543ed6272A081308A731470/manta:0x5f58BcCE409CDaFBbD705e720743b1EfF9fef28c)) - 2024-03-01 12:23 UTC, deployment of [MantaL1ERC20Bridge](https://pacific-explorer.manta.network/address/0x44a65dc12865A1e5249b45b4868f32b0E37168FF#code): transaction [0x2943e153ac49278eb44cc3606eb830489bd39126056837515c5f1d4fd6262943](https://pacific-explorer.manta.network/tx/0x2943e153ac49278eb44cc3606eb830489bd39126056837515c5f1d4fd6262943), implementations: [0x0d53cE63f3A72879d543ed6272A081308A731470](https://pacific-explorer.manta.network/address/0x0d53cE63f3A72879d543ed6272A081308A731470#code) Main entry point for depositing ERC20 tokens from Manta Pacific to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: MantaOwner with no delay #### MantazkLink Addresses: [0xD784d7128B46B60Ca7d8BdC17dCEC94917455657](https://pacific-explorer.manta.network/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code), [0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585](https://pacific-explorer.manta.network/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code) (Implementation (Upgradable)), [0x6ed8745d9ad0EE1fEeB060d63c7cf78A7E4c2dE3](https://pacific-explorer.manta.network/address/0x6ed8745d9ad0EE1fEeB060d63c7cf78A7E4c2dE3#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 2y 6mo ago, Avg upgrade interval: 10mo 26d) - 2024-04-22 02:31 UTC, upgrade of [MantazkLink](https://pacific-explorer.manta.network/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x469dbeecfffe82b89157782a568b255280c6058eb429a32feff865321c640339](https://pacific-explorer.manta.network/tx/0x469dbeecfffe82b89157782a568b255280c6058eb429a32feff865321c640339), implementations: [0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585](https://pacific-explorer.manta.network/address/0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585#code) ([diff](https://disco.ethbeat.org/diff/manta:0xe89635a7339bf46198f76b17bCFdAD977699cc13/manta:0xfB0Ad0B3C2605A7CA33d6badd0C685E11b8F5585)) - 2024-03-09 10:17 UTC, upgrade of [MantazkLink](https://pacific-explorer.manta.network/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x8ee4d527346b72e8b98838d84ef8667fc841944314f583cabf9993f6f462f848](https://pacific-explorer.manta.network/tx/0x8ee4d527346b72e8b98838d84ef8667fc841944314f583cabf9993f6f462f848), implementations: [0xe89635a7339bf46198f76b17bCFdAD977699cc13](https://pacific-explorer.manta.network/address/0xe89635a7339bf46198f76b17bCFdAD977699cc13#code) ([diff](https://disco.ethbeat.org/diff/manta:0x5715Dec4cd747675E47b969D3a15aab909b8ce05/manta:0xe89635a7339bf46198f76b17bCFdAD977699cc13)) - 2024-03-01 07:44 UTC, deployment of [MantazkLink](https://pacific-explorer.manta.network/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0xc4750009e40fe4c7c227dc379408c428ce6ff26c296f9eb06815b021339fdf69](https://pacific-explorer.manta.network/tx/0xc4750009e40fe4c7c227dc379408c428ce6ff26c296f9eb06815b021339fdf69), implementations: [0x5715Dec4cd747675E47b969D3a15aab909b8ce05](https://pacific-explorer.manta.network/address/0x5715Dec4cd747675E47b969D3a15aab909b8ce05#code) Main messaging contract on Manta Pacific and ETH escrow. Outgoing messages (like deposits) are sent through the MantaPacificL2Gateway which ultimately makes use of Manta Pacific's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: MantaOwner with no delay #### MantaL2Gateway Addresses: [0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code), [0x50efC7f1290479cb879473512D89fDC80B726211](https://pacific-explorer.manta.network/address/0x50efC7f1290479cb879473512D89fDC80B726211#code) (Implementation (Upgradable)), [0x6ed8745d9ad0EE1fEeB060d63c7cf78A7E4c2dE3](https://pacific-explorer.manta.network/address/0x6ed8745d9ad0EE1fEeB060d63c7cf78A7E4c2dE3#code) (Admin) **Past upgrades** (Count of upgrades: 3, Last upgrade: 2y 8mo ago, Avg upgrade interval: 8mo 4d) - 2024-03-09 10:52 UTC, upgrade of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x40fe517bb5f7d135cc8dc1c39fe59b6ec44bf2b9477ab4f9f3e7fc09f658e892](https://pacific-explorer.manta.network/tx/0x40fe517bb5f7d135cc8dc1c39fe59b6ec44bf2b9477ab4f9f3e7fc09f658e892), implementations: [0x50efC7f1290479cb879473512D89fDC80B726211](https://pacific-explorer.manta.network/address/0x50efC7f1290479cb879473512D89fDC80B726211#code) ([diff](https://disco.ethbeat.org/diff/manta:0x55fa5276c44c1B465196898b144524C9c852235E/manta:0x50efC7f1290479cb879473512D89fDC80B726211)) - 2024-03-01 11:29 UTC, upgrade of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x4a6764267c156b1453ce1460fca710b3544d2df4ddeb03c625843c891886cb1b](https://pacific-explorer.manta.network/tx/0x4a6764267c156b1453ce1460fca710b3544d2df4ddeb03c625843c891886cb1b), implementations: [0x55fa5276c44c1B465196898b144524C9c852235E](https://pacific-explorer.manta.network/address/0x55fa5276c44c1B465196898b144524C9c852235E#code) ([diff](https://disco.ethbeat.org/diff/manta:0xbfa352a683D82a04233Cc45AC1308621BA63283f/manta:0x55fa5276c44c1B465196898b144524C9c852235E)) - 2024-03-01 11:22 UTC, upgrade of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x59d14b41116012c515c95ed7546fdcc82a1535184eb2a134daff77bf2db9c5f6](https://pacific-explorer.manta.network/tx/0x59d14b41116012c515c95ed7546fdcc82a1535184eb2a134daff77bf2db9c5f6), implementations: [0xbfa352a683D82a04233Cc45AC1308621BA63283f](https://pacific-explorer.manta.network/address/0xbfa352a683D82a04233Cc45AC1308621BA63283f#code) ([diff](https://disco.ethbeat.org/diff/manta:0x55fa5276c44c1B465196898b144524C9c852235E/manta:0xbfa352a683D82a04233Cc45AC1308621BA63283f)) - 2024-03-01 07:46 UTC, deployment of [MantaL2Gateway](https://pacific-explorer.manta.network/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x1fca63a739c05f1e22df26b3cc5b2af31de992156fc017e7810cc94671913fee](https://pacific-explorer.manta.network/tx/0x1fca63a739c05f1e22df26b3cc5b2af31de992156fc017e7810cc94671913fee), implementations: [0x55fa5276c44c1B465196898b144524C9c852235E](https://pacific-explorer.manta.network/address/0x55fa5276c44c1B465196898b144524C9c852235E#code) High level interface between the local zkLink contract and Manta Pacific's message service. Can be upgraded by: MantaOwner with no delay ### Mantle #### MantleL1ERC20Bridge Addresses: [0x62351b47e060c61868Ab7E05920Cb42bD9A5f2B2](https://explorer.mantle.xyz/address/0x62351b47e060c61868Ab7E05920Cb42bD9A5f2B2#code), [0x7769C18828569692Dfb65affa0856533613ea458](https://explorer.mantle.xyz/address/0x7769C18828569692Dfb65affa0856533613ea458#code) (Implementation (Upgradable)), [0xeAe8e5180EAE503E4Ffef2F5D48E20164eD41b82](https://explorer.mantle.xyz/address/0xeAe8e5180EAE503E4Ffef2F5D48E20164eD41b82#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 4mo) - 2024-04-04 06:27 UTC, upgrade of [MantleL1ERC20Bridge](https://explorer.mantle.xyz/address/0x62351b47e060c61868Ab7E05920Cb42bD9A5f2B2#code): transaction [0xed9f3f5842ead3da2348d8edfbcacf5bf0572cc53ec3443c5229c23845d63f9c](https://explorer.mantle.xyz/tx/0xed9f3f5842ead3da2348d8edfbcacf5bf0572cc53ec3443c5229c23845d63f9c), implementations: [0x7769C18828569692Dfb65affa0856533613ea458](https://explorer.mantle.xyz/address/0x7769C18828569692Dfb65affa0856533613ea458#code) ([diff](https://disco.ethbeat.org/diff/mantle:0xbfa352a683D82a04233Cc45AC1308621BA63283f/mantle:0x7769C18828569692Dfb65affa0856533613ea458)) - 2024-03-01 12:41 UTC, deployment of [MantleL1ERC20Bridge](https://explorer.mantle.xyz/address/0x62351b47e060c61868Ab7E05920Cb42bD9A5f2B2#code): transaction [0xaf05aafd35db4063ec7549aeed61f0a2ced59a80c34aefe1a2f7e0de6a1ac7c8](https://explorer.mantle.xyz/tx/0xaf05aafd35db4063ec7549aeed61f0a2ced59a80c34aefe1a2f7e0de6a1ac7c8), implementations: [0xbfa352a683D82a04233Cc45AC1308621BA63283f](https://explorer.mantle.xyz/address/0xbfa352a683D82a04233Cc45AC1308621BA63283f#code) Main entry point for depositing ERC20 tokens from Mantle to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: MantleOwner with no delay #### MantlezkLink Addresses: [0xD784d7128B46B60Ca7d8BdC17dCEC94917455657](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code), [0x0C04046546C46652969Aa9eB4BFB758cFDf1e821](https://explorer.mantle.xyz/address/0x0C04046546C46652969Aa9eB4BFB758cFDf1e821#code) (Implementation (Upgradable)), [0x1aB4D3cfcCCB28DBc8993454f461f3565281BB60](https://explorer.mantle.xyz/address/0x1aB4D3cfcCCB28DBc8993454f461f3565281BB60#code) (Admin) **Past upgrades** (Count of upgrades: 3, Last upgrade: 2y 6mo ago, Avg upgrade interval: 8mo 4d) - 2024-05-03 09:09 UTC, upgrade of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7](https://explorer.mantle.xyz/tx/0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7), implementations: [0x0C04046546C46652969Aa9eB4BFB758cFDf1e821](https://explorer.mantle.xyz/address/0x0C04046546C46652969Aa9eB4BFB758cFDf1e821#code) ([diff](https://disco.ethbeat.org/diff/mantle:0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6/mantle:0x0C04046546C46652969Aa9eB4BFB758cFDf1e821)) - 2024-04-22 02:31 UTC, upgrade of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0xecf1785a348ae45261abf6f4bc82163701840e4740a5c104f036305677d800e8](https://explorer.mantle.xyz/tx/0xecf1785a348ae45261abf6f4bc82163701840e4740a5c104f036305677d800e8), implementations: [0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6](https://explorer.mantle.xyz/address/0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e/mantle:0xa8486096C719024D4eB2262A45AAc5cA8A256Cd6)) - 2024-03-09 10:15 UTC, upgrade of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x0f8754436aa05997946fd34f1a0573cb22a6c27181af505cb4d4121723bdd1cd](https://explorer.mantle.xyz/tx/0x0f8754436aa05997946fd34f1a0573cb22a6c27181af505cb4d4121723bdd1cd), implementations: [0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e](https://explorer.mantle.xyz/address/0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x5715Dec4cd747675E47b969D3a15aab909b8ce05/mantle:0x85079cb83B6cadba34e64bc0f24493F49D8b1F4e)) - 2024-03-01 07:48 UTC, deployment of [MantlezkLink](https://explorer.mantle.xyz/address/0xD784d7128B46B60Ca7d8BdC17dCEC94917455657#code): transaction [0x6a00d05f32d4cad32533eacc6bfe09f424002d60b1474ec6d9615d7ad7f86abe](https://explorer.mantle.xyz/tx/0x6a00d05f32d4cad32533eacc6bfe09f424002d60b1474ec6d9615d7ad7f86abe), implementations: [0x5715Dec4cd747675E47b969D3a15aab909b8ce05](https://explorer.mantle.xyz/address/0x5715Dec4cd747675E47b969D3a15aab909b8ce05#code) Main messaging contract on Mantle and ETH escrow. Outgoing messages (like deposits) are sent through the MantleL2Gateway which ultimately makes use of Mantle's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: MantleOwner with no delay #### MantleL2Gateway Addresses: [0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0](https://explorer.mantle.xyz/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code), [0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D](https://explorer.mantle.xyz/address/0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D#code) (Implementation (Upgradable)), [0x1aB4D3cfcCCB28DBc8993454f461f3565281BB60](https://explorer.mantle.xyz/address/0x1aB4D3cfcCCB28DBc8993454f461f3565281BB60#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 2y 6mo ago, Avg upgrade interval: 10mo 26d) - 2024-05-03 09:09 UTC, upgrade of [MantleL2Gateway](https://explorer.mantle.xyz/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7](https://explorer.mantle.xyz/tx/0x10bb5a3d57fc38cfc2e56d9046c00aba1a47fe4ad38162ba0a5ec19c6b2cc6e7), implementations: [0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D](https://explorer.mantle.xyz/address/0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72/mantle:0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D)) - 2024-03-09 10:51 UTC, upgrade of [MantleL2Gateway](https://explorer.mantle.xyz/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0xd264b50869bc4bd7d2c3ad80541399bc5a1963aa4ef010ea40e699ab0a56a9a7](https://explorer.mantle.xyz/tx/0xd264b50869bc4bd7d2c3ad80541399bc5a1963aa4ef010ea40e699ab0a56a9a7), implementations: [0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72](https://explorer.mantle.xyz/address/0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72#code) ([diff](https://disco.ethbeat.org/diff/mantle:0x55fa5276c44c1B465196898b144524C9c852235E/mantle:0x09CB6C5A235939258e3F6Ae2989cf6f26EeE1c72)) - 2024-03-01 07:49 UTC, deployment of [MantleL2Gateway](https://explorer.mantle.xyz/address/0xe946aBB40928326ce5bFF303E7B8f0f253EA39D0#code): transaction [0xdb5d3920a2bbd9c5a3d97b54c227aa56d0f555060a03d7212a0d05b4239ec0f9](https://explorer.mantle.xyz/tx/0xdb5d3920a2bbd9c5a3d97b54c227aa56d0f555060a03d7212a0d05b4239ec0f9), implementations: [0x55fa5276c44c1B465196898b144524C9c852235E](https://explorer.mantle.xyz/address/0x55fa5276c44c1B465196898b144524C9c852235E#code) High level interface between the local zkLink contract and Mantle's message service. Can be upgraded by: MantleOwner with no delay ### Scroll #### ScrollL1ERC20Bridge Addresses: [0x3C7c0ebFCD5786ef48df5ed127cdDEb806db976c](https://scrollscan.com/address/0x3C7c0ebFCD5786ef48df5ed127cdDEb806db976c#code), [0x067c7126a83560Ed2Fc345d25799F696B7Ea47Ca](https://scrollscan.com/address/0x067c7126a83560Ed2Fc345d25799F696B7Ea47Ca#code) (Implementation (Upgradable)), [0xC4673dAbfAf04D2A430e244B63F040D27199102f](https://scrollscan.com/address/0xC4673dAbfAf04D2A430e244B63F040D27199102f#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-06-10 13:41 UTC, deployment of [ScrollL1ERC20Bridge](https://scrollscan.com/address/0x3C7c0ebFCD5786ef48df5ed127cdDEb806db976c#code): transaction [0xd2775129688587d97fff37813acd0581f68fdfe7f1a52b36a779e4ef9021c3fe](https://scrollscan.com/tx/0xd2775129688587d97fff37813acd0581f68fdfe7f1a52b36a779e4ef9021c3fe), implementations: [0x067c7126a83560Ed2Fc345d25799F696B7Ea47Ca](https://scrollscan.com/address/0x067c7126a83560Ed2Fc345d25799F696B7Ea47Ca#code) Main entry point for depositing ERC20 tokens from Scroll to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: ScrollOwner with no delay #### ScrollzkLink Addresses: [0x119B9459D9119D07c23aD06778AeaBec804Fd1a2](https://scrollscan.com/address/0x119B9459D9119D07c23aD06778AeaBec804Fd1a2#code), [0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D](https://scrollscan.com/address/0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D#code) (Implementation (Upgradable)), [0xeCa8EB8B909A29C2F912d5b0cBB153a43c860c77](https://scrollscan.com/address/0xeCa8EB8B909A29C2F912d5b0cBB153a43c860c77#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-06-10 07:26 UTC, deployment of [ScrollzkLink](https://scrollscan.com/address/0x119B9459D9119D07c23aD06778AeaBec804Fd1a2#code): transaction [0x9d2ffc640100c25deacf7308dafb540b000bfc8a3d6fa8dab19ec9150ce38434](https://scrollscan.com/tx/0x9d2ffc640100c25deacf7308dafb540b000bfc8a3d6fa8dab19ec9150ce38434), implementations: [0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D](https://scrollscan.com/address/0xCdcDF691aF3e3717A35A2352aB7e34fd2980613D#code) Main messaging contract on Scroll and ETH escrow. Outgoing messages (like deposits) are sent through the ScrollL2Gateway which ultimately makes use of Scroll's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: ScrollOwner with no delay #### ScrollL2Gateway Addresses: [0xd8428A59B60Df2d81514D429D57DF23293f1bCe7](https://scrollscan.com/address/0xd8428A59B60Df2d81514D429D57DF23293f1bCe7#code), [0xe469c1330cEEcC375fE17E7D649eA270186D344F](https://scrollscan.com/address/0xe469c1330cEEcC375fE17E7D649eA270186D344F#code) (Implementation (Upgradable)), [0xeCa8EB8B909A29C2F912d5b0cBB153a43c860c77](https://scrollscan.com/address/0xeCa8EB8B909A29C2F912d5b0cBB153a43c860c77#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-06-10 07:30 UTC, deployment of [ScrollL2Gateway](https://scrollscan.com/address/0xd8428A59B60Df2d81514D429D57DF23293f1bCe7#code): transaction [0xa45f6d61d7c5c041f10950e9448a39a9fbf490d2fcb3155ff9add77b43cfc0c6](https://scrollscan.com/tx/0xa45f6d61d7c5c041f10950e9448a39a9fbf490d2fcb3155ff9add77b43cfc0c6), implementations: [0xe469c1330cEEcC375fE17E7D649eA270186D344F](https://scrollscan.com/address/0xe469c1330cEEcC375fE17E7D649eA270186D344F#code) High level interface between the local zkLink contract and Scroll's message service. Can be upgraded by: ScrollOwner with no delay ### Blast #### BlastL1ERC20Bridge Addresses: [0x8Df0c2bA3916bF4789c50dEc5A79b2fc719F500b](https://blastscan.io/address/0x8Df0c2bA3916bF4789c50dEc5A79b2fc719F500b#code), [0xc24864769346073f5fEf0386A18734F0eF5503F5](https://blastscan.io/address/0xc24864769346073f5fEf0386A18734F0eF5503F5#code) (Implementation (Upgradable)), [0xB5111Bda1E59b220d0Cf8D519CEDac46cb3B4c19](https://blastscan.io/address/0xB5111Bda1E59b220d0Cf8D519CEDac46cb3B4c19#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 3mo) - 2024-04-04 06:41 UTC, upgrade of [BlastL1ERC20Bridge](https://blastscan.io/address/0x8Df0c2bA3916bF4789c50dEc5A79b2fc719F500b#code): transaction [0x319fa19f70ff861bf9b573f1cc6054d236dcb99dec620756e3f85d2c35c0040b](https://blastscan.io/tx/0x319fa19f70ff861bf9b573f1cc6054d236dcb99dec620756e3f85d2c35c0040b), implementations: [0xc24864769346073f5fEf0386A18734F0eF5503F5](https://blastscan.io/address/0xc24864769346073f5fEf0386A18734F0eF5503F5#code) ([diff](https://disco.ethbeat.org/diff/blastmainnet:0x4D7012d5C62c351804CCe49c2d7C09A401fD3deC/blastmainnet:0xc24864769346073f5fEf0386A18734F0eF5503F5)) - 2024-03-14 14:36 UTC, deployment of [BlastL1ERC20Bridge](https://blastscan.io/address/0x8Df0c2bA3916bF4789c50dEc5A79b2fc719F500b#code): transaction [0x6c75a5c435f7e399d35fa65b31295cfa722742a9cd03208bcf726891f028d0b2](https://blastscan.io/tx/0x6c75a5c435f7e399d35fa65b31295cfa722742a9cd03208bcf726891f028d0b2), implementations: [0x4D7012d5C62c351804CCe49c2d7C09A401fD3deC](https://blastscan.io/address/0x4D7012d5C62c351804CCe49c2d7C09A401fD3deC#code) Main entry point for depositing ERC20 tokens from Blast to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: BlastOwner with no delay #### BlastzkLink Addresses: [0x29BA92Fe724beD5c5EBfd0099F2F64a6DC5078FD](https://blastscan.io/address/0x29BA92Fe724beD5c5EBfd0099F2F64a6DC5078FD#code), [0xDe4Be50Bfe9503180231357Eab19d709F8F73C66](https://blastscan.io/address/0xDe4Be50Bfe9503180231357Eab19d709F8F73C66#code) (Implementation (Upgradable)), [0x730200f698cc8Ff16C00F4E8520Fd780B916D50E](https://blastscan.io/address/0x730200f698cc8Ff16C00F4E8520Fd780B916D50E#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 6mo ago, Avg upgrade interval: 1y 3mo) - 2024-04-22 02:30 UTC, upgrade of [BlastzkLink](https://blastscan.io/address/0x29BA92Fe724beD5c5EBfd0099F2F64a6DC5078FD#code): transaction [0xb0fd8cd86cd093af8f866f6fd599067fc5d202d36fd1f4967bda245c41ee16aa](https://blastscan.io/tx/0xb0fd8cd86cd093af8f866f6fd599067fc5d202d36fd1f4967bda245c41ee16aa), implementations: [0xDe4Be50Bfe9503180231357Eab19d709F8F73C66](https://blastscan.io/address/0xDe4Be50Bfe9503180231357Eab19d709F8F73C66#code) ([diff](https://disco.ethbeat.org/diff/blastmainnet:0x35E808DB3A37eec12ecF6A22Cc951C9F867f1D64/blastmainnet:0xDe4Be50Bfe9503180231357Eab19d709F8F73C66)) - 2024-03-14 12:02 UTC, deployment of [BlastzkLink](https://blastscan.io/address/0x29BA92Fe724beD5c5EBfd0099F2F64a6DC5078FD#code): transaction [0xd2b32d00ff07d1bb06d1fb01f3aedb6163ee3bf6fbe547310c4674f592d4d7f5](https://blastscan.io/tx/0xd2b32d00ff07d1bb06d1fb01f3aedb6163ee3bf6fbe547310c4674f592d4d7f5), implementations: [0x35E808DB3A37eec12ecF6A22Cc951C9F867f1D64](https://blastscan.io/address/0x35E808DB3A37eec12ecF6A22Cc951C9F867f1D64#code) Main messaging contract on Blast and ETH escrow. Outgoing messages (like deposits) are sent through the BlastL2Gateway which ultimately makes use of Blast's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: BlastOwner with no delay #### BlastL2Gateway Addresses: [0x3f64e2e09732969813904a8473074CFADeE66AF1](https://blastscan.io/address/0x3f64e2e09732969813904a8473074CFADeE66AF1#code), [0xd1dCd063A4e650DCECd8BD211fe6D18a934ecCaD](https://blastscan.io/address/0xd1dCd063A4e650DCECd8BD211fe6D18a934ecCaD#code) (Implementation (Upgradable)), [0x730200f698cc8Ff16C00F4E8520Fd780B916D50E](https://blastscan.io/address/0x730200f698cc8Ff16C00F4E8520Fd780B916D50E#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-03-14 12:13 UTC, deployment of [BlastL2Gateway](https://blastscan.io/address/0x3f64e2e09732969813904a8473074CFADeE66AF1#code): transaction [0x05e9bceb1c88e60beabf453da2cfc31525989a529e5d600fbe170dfdb1325c88](https://blastscan.io/tx/0x05e9bceb1c88e60beabf453da2cfc31525989a529e5d600fbe170dfdb1325c88), implementations: [0xd1dCd063A4e650DCECd8BD211fe6D18a934ecCaD](https://blastscan.io/address/0xd1dCd063A4e650DCECd8BD211fe6D18a934ecCaD#code) High level interface between the local zkLink contract and Blast's message service. Can be upgraded by: BlastOwner with no delay ### ZKsync Era #### EraL1ERC20Bridge Addresses: [0xaB3DDB86072a35d74beD49AA0f9210098ebf2D08](https://explorer.zksync.io/address/0xaB3DDB86072a35d74beD49AA0f9210098ebf2D08#code), [0xdBA32e62e929a7e2Fa65782F812416CA65208E40](https://explorer.zksync.io/address/0xdBA32e62e929a7e2Fa65782F812416CA65208E40#code) (Implementation (Upgradable)), [0xe8184919c7200EF09e7007DFaB89BA4a99CeDc98](https://explorer.zksync.io/address/0xe8184919c7200EF09e7007DFaB89BA4a99CeDc98#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2y 7mo ago, Avg upgrade interval: 1y 4mo) - 2024-04-04 06:25 UTC, upgrade of [EraL1ERC20Bridge](https://explorer.zksync.io/address/0xaB3DDB86072a35d74beD49AA0f9210098ebf2D08#code): transaction [0x7886648572871a6eb12027c117e273d16ee8026b5f51c0b01b209c0218caf005](https://explorer.zksync.io/tx/0x7886648572871a6eb12027c117e273d16ee8026b5f51c0b01b209c0218caf005), implementations: [0xdBA32e62e929a7e2Fa65782F812416CA65208E40](https://explorer.zksync.io/address/0xdBA32e62e929a7e2Fa65782F812416CA65208E40#code) ([diff](https://disco.ethbeat.org/diff/zksync:0x022c9D356d6B020D3128de430458A28C7183a13d/zksync:0xdBA32e62e929a7e2Fa65782F812416CA65208E40)) - 2024-03-01 12:44 UTC, deployment of [EraL1ERC20Bridge](https://explorer.zksync.io/address/0xaB3DDB86072a35d74beD49AA0f9210098ebf2D08#code): transaction [0x0564dfd39bc1c198014393565488b4808d94d76790f60c342ac6b031a000233d](https://explorer.zksync.io/tx/0x0564dfd39bc1c198014393565488b4808d94d76790f60c342ac6b031a000233d), implementations: [0x022c9D356d6B020D3128de430458A28C7183a13d](https://explorer.zksync.io/address/0x022c9D356d6B020D3128de430458A28C7183a13d#code) Main entry point for depositing ERC20 tokens from ZKsync Era to zkLink Nova. Outgoing messages and incoming withdrawal validation is delegated to the zkLink contract. Can be upgraded by: EraOwner with no delay #### ErazkLink Addresses: [0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A](https://explorer.zksync.io/address/0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A#code), [0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E](https://explorer.zksync.io/address/0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E#code) (Implementation (Upgradable)), [0x3334552599C9aA1FE08CfF276A02033FF37646ca](https://explorer.zksync.io/address/0x3334552599C9aA1FE08CfF276A02033FF37646ca#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 2y 6mo ago, Avg upgrade interval: 10mo 26d) - 2024-04-22 02:28 UTC, upgrade of [ErazkLink](https://explorer.zksync.io/address/0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A#code): transaction [0x35dad9f42bcd7e9c55385a3656325f94616498878f636e080dbd059f80618492](https://explorer.zksync.io/tx/0x35dad9f42bcd7e9c55385a3656325f94616498878f636e080dbd059f80618492), implementations: [0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E](https://explorer.zksync.io/address/0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E#code) ([diff](https://disco.ethbeat.org/diff/zksync:0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5/zksync:0xC9bBbdCf1778A4aA86544F02CccBf09fd3A0706E)) - 2024-03-09 10:21 UTC, upgrade of [ErazkLink](https://explorer.zksync.io/address/0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A#code): transaction [0x36b4b07ab7556a46e511974d1e6ef3baacce9b569299326bba10f33d8166d0f0](https://explorer.zksync.io/tx/0x36b4b07ab7556a46e511974d1e6ef3baacce9b569299326bba10f33d8166d0f0), implementations: [0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5](https://explorer.zksync.io/address/0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5#code) ([diff](https://disco.ethbeat.org/diff/zksync:0x1D3A82B3BDE1d23D3989b77325C4875395c9D6a9/zksync:0xCaAeA20e1e35214342f4Efe87d3912493E3e1CE5)) - 2024-03-01 08:10 UTC, deployment of [ErazkLink](https://explorer.zksync.io/address/0xaFe8C7Cf33eD0fee179DFF20ae174C660883273A#code): transaction [0xc46fbc277cb8c7a4cc234225d13ef11be35301d8aae17df2537a2b54692ab750](https://explorer.zksync.io/tx/0xc46fbc277cb8c7a4cc234225d13ef11be35301d8aae17df2537a2b54692ab750), implementations: [0x1D3A82B3BDE1d23D3989b77325C4875395c9D6a9](https://explorer.zksync.io/address/0x1D3A82B3BDE1d23D3989b77325C4875395c9D6a9#code) Main messaging contract on ZKsync Era and ETH escrow. Outgoing messages (like deposits) are sent through the ZKsync2L2Gateway which ultimately makes use of ZKsync Era's canonical messaging bridge to reach the Arbitrator on L1. Only whitelisted validators can sync messages with zkLink Nova, which also transfer the ETH to it via the respective canonical bridges. Incoming messages (like withdrawals) are validated on Linea first and then sent to this contract through the same path. Whitelisted validators can also relay messages to zkLink without going through the canonical bridge (fast path), which are later cross-checked with the slow path. If the check fails, the system halts. Can be upgraded by: EraOwner with no delay The current deployment carries some associated risks: - Funds can be stolen if a contract receives a malicious code upgrade. There is no delay on code upgrades (CRITICAL).