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Ronin

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About

Ronin is an Ethereum Optimium based on the OP Stack, optimized for gaming and NFT applications. It migrated from an independent sidechain to a Layer 2 in May 2026, using EigenDA for data availability and keeping RON as the custom gas token.


  • Total Value SecuredTVS
    $200.49 M4.21%
  • Past day UOPSDaily UOPS
    1.6419.9%
  • Stage
  • Gas token
    RON

  • Type
    Optimium
  • Purpose
    Universal
  • Chain ID
    2020

  • Tokens breakdown

    Sequencer failureState validationData availabilityExit windowProposer failure

    Badges

    About

    Ronin is an Ethereum Optimium based on the OP Stack, optimized for gaming and NFT applications. It migrated from an independent sidechain to a Layer 2 in May 2026, using EigenDA for data availability and keeping RON as the custom gas token.


    Total
    Canonically BridgedCanonically Bridged ValueCanonical
    Natively MintedNatively Minted TokensNative
    Externally BridgedExternally Bridged ValueExternal

    ETH & derivatives
    Stablecoins
    BTC & derivatives
    Other

    2026 May 12 — Jul 23

    Past Day UOPS
    1.6419.9%
    Past Day Ops count
    142.55 K
    Total Ops
    11.60 M
    since 2026 May 12
    Max. UOPS
    3.91
    2026 May 28
    Past day UOPS/TPS Ratio
    1.26

    The section shows the operating costs that L2s pay to Ethereum.


    2026 May 12 — Jul 23


    Total cost
    $2.76 K
    Avg cost per L2 UOP
    $0.000239
    Avg cost per day
    $38.97

    This section shows how "live" the project's operators are by displaying how frequently they submit transactions of the selected type. It also highlights anomalies - significant deviations from their typical schedule.

    No ongoing anomalies detected

    2026 Jun 23 — Jul 23

    Avg. tx data subs. interval
    8 minutes
    Avg. state updates interval
    11 hours
    Past 30 days anomalies
    97% normal uptime

    Last 30 day anomalies

    All liveness anomalies detected for this project in the last 30 days, helping you review recent downtime and availability issues.

    No Tx data submissions were performed for 1h 20m (from 2026 Jul 20, 17:34 UTC until 2026 Jul 20, 18:54 UTC). These typically occur every 8min 32s on average.

    No State updates were performed for 12h 3m 12s (from 2026 Jul 01, 15:55 UTC until 2026 Jul 02, 03:58 UTC). These typically occur every 11h 53m 58s on average.

    No State updates were performed for 5h 2m 12s (from 2026 Jul 01, 10:53 UTC until 2026 Jul 01, 15:55 UTC). These typically occur every 11h 53m 58s on average.

    No Tx data submissions were performed for 1h 52m 48s (from 2026 Jun 25, 07:08 UTC until 2026 Jun 25, 09:01 UTC). These typically occur every 8min 32s on average.

    Ronin migrates to an Ethereum L2

    2026 May 12th

    Ronin hard-forks at block 55,577,490 to become an OP Stack Optimium using EigenDA.

    Learn more
    Sequencer failureState validationData availabilityExit windowProposer failure
    Sequencer failure
    Self sequence

    In the event of a sequencer failure, users can force transactions to be included in the project’s chain by sending them to L1. There can be up to a 12h delay on this operation.

    State validation
    Fraud proofs (1R, ZK)

    Fraud proofs allow actors watching the chain to prove that the state is incorrect. Single round proofs (1R) prove the validity of a state proposal, only requiring a single transaction to resolve. A fault proof eliminates a state proposal by proving that any intermediate state transition in the proposal results in a different state root. For either, a ZK proof is used.

    Data availability
    External

    Proof construction and state derivation fully rely on data that is posted on EigenDA. The sequencer is publishing data to EigenDA v2. Sequencer transaction data roots are checked against the DACert Verifier data roots, signed off by EigenDA operators.

    Exit window
    None

    There is no window for users to exit in case of an unwanted upgrade since contracts are instantly upgradable.

    Proposer failure
    Self propose

    The primary whitelisted proposer has an optimistic advantage, letting them win by default if no conflicting proposals are made. This privilege is dropped after 1mo of inactivity, and anyone can leverage the source available zk prover to prove a fault or a conflicting valid proposal to win against the privileged proposer and/or supply a bond and make a counter proposal at any time.

    Ronin
    Ronin is a
    Stage 0
    Optimium.

    Learn more about Stages
    Please keep in mind that these stages do not reflect project security, this is an opinionated assessment of project maturity based on subjective criteria, created with a goal of incentivizing projects to push toward better decentralization. Each team may have taken different paths to achieve this goal.

    Data is posted to EigenDA

    Transactions roots are posted onchain and the full data is posted on EigenDA. The sequencer is publishing data to EigenDA v2. The DACert Verifier is used to verify attestations from the EigenDA operator set that the data is indeed available.

    • Funds can be lost if the sequencer posts an unavailable transaction root (CRITICAL).

    • Funds can be lost if the data is not available on the external provider (CRITICAL).

    1. EigenDA Docs - Overview
    2. Derivation: Batch submission - OP Mainnet specs
    3. BatchInbox - address
    4. OptimismPortal2.sol - source code, depositTransaction function
    Learn more about the DA layer here: EigenDA logoEigenDA
    A diagram of the state validation
    A diagram of the state validation
    State root proposals

    Proposers submit state roots as children of any (possibly unresolved) previous state root proposal, by calling the propose() function in the KailuaTreasury. A parent state root can have multiple conflicting children, composing a tournament. Each proposer requires to lock a bond, currently set to 0.5 ETH, that can be slashed if any proposal made by them is proven incorrect via a fault proof or a conflicting validity proof. The bond can be withdrawn once the proposer has no more pending proposals that need to be resolved and was not eliminated.

    Proposals consist of a state root and a reference to their parent and implicitly challenge any sibling proposals who have the same parent. A proposal asserts that the proposed state root constitutes a valid state transition from the parent’s state root. To offer efficient zk fault proofs, each proposal must include 3600 intermediate state commitments, each spanning 6 L2 blocks.

    Proposals target sequential tournament epochs of currently 3600 * 6 L2 blocks. A tournament with a resolved parent tournament, a single child- and no conflicting sibling proposals can be resolved after 3d.

    The Vanguard is a privileged actor who can always make the first child proposal on a parent state root. They can, in the worst case, delay each tournament for up to 1mo by not making this first proposal. Sibling proposals made after the Vanguard’s initial one or after the 1mo vanguardAdvantage in each tournament are permissionless.

    • Funds can be frozen if the vanguard exploits their vanguard advantage (1mo), halting the chain until they propose.

    1. Sequencing - Kailua Docs
    2. Vanguard - Kailua Docs
    Challenges

    Any conflicting sibling proposals within a tournament that are made within the 3d challenge period of a proposal they are challenging, delay resolving the tournament until sufficient ZK proofs are published to leave one single tournament survivor.

    In the tree of proposed state roots, each parent node can have multiple children. These children are indirectly challenging each other in a tournament, which can only be resolved if but a single child survives. A state root can be resolved if it is the only remaining proposal due to any combination of the following elimination methods:

    1. the proposal’s challenge period of 3d has ended before a conflicting proposal was made
    2. the proposal is proven correct with a full validity proof (invalidates all conflicting proposals)
    3. a conflicting sibling proposal is proven faulty

    Proving any of the 3600 intermediate state commitments in a proposal faulty invalidates the entire proposal. Proving a proposal valid invalidates all conflicting siblings. Pruning of a tournament’s children happens strictly chronologically, which guarantees that the first faulty proposal of a given proposer is always pruned first. When pruned, an invalid proposal leads to the elimination of its proposer, which invalidates all their subsequent proposals, slashes their bond, and disallows future proposals by the same address. A slashed bond is transferred to an address chosen by the prover who caused the slashing.

    A single remaining child in a tournament can be ‘resolved’ and will be finalized and usable for withdrawals after an execution delay of 3d 12h (time for the Guardian to manually blacklist malicious state roots).

    1. How to run a challenger - Boundless Docs
    2. Disputes - Kailua Book
    Validity proofs

    Validity proofs and fault proofs both must be accompanied by a ZK proof that ensures that the new state was derived by correctly applying a series of valid user transactions to the previous state. These proofs are then verified on Ethereum by a smart contract.

    The Kailua state validation system is primarily optimistically resolved, so no validity proofs are required in the happy case. But two different zk proofs on unresolved state roots are possible and permissionless: The proveValidity() function proves a state root proposal’s full validity, automatically invalidating all conflicting sibling proposals. proveOutputFault() allows any actor to eliminate a state root proposal for which they can prove that any of the 3600 intermediate state transitions in the proposal are not correct. Both are zk proofs of validity, although one is used as an efficient fault proof to invalidate a single conflicting state transition.

    • Funds can be stolen if the validity proof cryptography is broken or implemented incorrectly.

    • Funds can be stolen if no challenger checks the published state.

    • Funds can be stolen if the proposer routes proof verification through a malicious or faulty verifier by specifying an unsafe route selector.

    • Funds can be frozen if a verifier needed for a given proof is paused by its permissioned owner.

    1. Kailua Proof System - Boundless Docs
    2. Verifier upgrade and deprecation - Kailua Docs

    Program Hashes

    Name
    Hash
    Repository
    Verification
    Used in
    0xd3c0...a90b
    Ronin logo
    0x7090...2cc9
    Base Chain logoRonin logo

    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
    10
    Last upgrade
    21d 18h ago
    Avg upgrade interval
    4mo 10d
    2026 July 06, 08:52 UTC
    High severity
    37changes

    Kailua cutover: respectedGameType on OptimismPortal2 and AnchorStateRegistry moved from 1 (PermissionedDisputeGame) to 1337 (KailuaGame). Withdrawals now clear through the ZK fault-proof game. DisputeGameFactory game1337 slot repointed from KailuaTreasury ( eth:0xc7EaCDd1… ) to the KailuaGame implementation ( eth:0x296e7aD6… ); the treasury continues to hold bonds and mint game clones. KailuaVerifier proxy upgraded (impl eth:0x7fC721AC… → eth:0xDd26da83… , 2026-07-01), with new FPVM IMAGE ID ( 0xd3c097df… ) and ROLLUP CONFIG HASH ( 0x96ff8605… ). KailuaTreasury economic parameters now live: participationBond = 0.5 ETH, vanguard = eth:0xD379de94… , vanguardAdvantage = 1 month.

    contract AnchorStateRegistry (eth:0x0B95fF1d1B113bac3E29Ac0BBF2089126C9aE81A) [opstack/AnchorStateRegistry_post13] {
    +++ description: Contains the latest confirmed state root that can be used as a starting point in a dispute game. It specifies which game type can be used for withdrawals, which currently is the KailuaGame.
    description:
    - "Contains the latest confirmed state root that can be used as a starting point in a dispute game. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame."
    + "Contains the latest confirmed state root that can be used as a starting point in a dispute game. It specifies which game type can be used for withdrawals, which currently is the KailuaGame."
    values.RespectedGameString:
    - "PermissionedDisputeGame"
    + "KailuaGame"
    +++ severity: HIGH
    values.respectedGameType:
    - 1
    + 1337
    }
    contract DisputeGameFactory (eth:0x45dA2CD511DA5FEAa535eBF166E628314a65843a) [opstack/DisputeGameFactory] {
    +++ description: The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them.
    +++ severity: HIGH
    values.game1337:
    - "eth:0xc7EaCDd1E755d2823463Abc4434CA445F752b336"
    + "eth:0x296e7aD6D441b0627768bC0650179a4206479444"
    }
    contract OptimismPortal2 (eth:0x652CD53eCf9466E5Fb00D0E11d6CBf6469a56D77) [opstack/OptimismPortal2] {
    +++ description: The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the KailuaGame.
    description:
    - "The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame."
    + "The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the KailuaGame."
    values.RespectedGameString:
    - "PermissionedDisputeGame"
    + "KailuaGame"
    +++ severity: HIGH
    values.respectedGameType:
    - 1
    + 1337
    }
    contract KailuaVerifier (eth:0x6b49976a7340D0A3C00d1bEBE0E36E2367D89c7C) [N/A] {
    +++ description: Proxy in front of the Kailua proof verifier; routes verification requests to the canonical RiscZeroVerifierRouter and asserts the chain-specific rollup config and FPVM image ID.
    values.$implementation:
    - "eth:0x7fC721ACC2183c292737C5a28Ea1B30d19f1cF29"
    + "eth:0xDd26da83B27987A7040caE31f2E35d9Bd6f5DE59"
    values.$pastUpgrades.1:
    + ["2026-07-01T10:19:35.000Z","0x07bf7a192a2ea3b5324ef5cef339715fc6b972b261463e751f39a3f7bb2ae72d",["eth:0xDd26da83B27987A7040caE31f2E35d9Bd6f5DE59"]]
    values.$upgradeCount:
    - 1
    + 2
    values.FPVM_IMAGE_ID:
    - "0xc2e7bc71ae10caf806a1a073e4170daf3f4ac31099f1f854f7062dd70ed12fe3"
    + "0xd3c097dfec583bb305eefcb5dcddc313b072e372cee66e13492c37fb50e6a90b"
    values.ROLLUP_CONFIG_HASH:
    - "0xc1f5bee1ef35d2b73a7cd351e650b2b123cb3bec91b0de3941af90539d5fc829"
    + "0x96ff86054c51b6b832108a14d93ced530c42e0ee5a113b47671c912fc19f5b1a"
    implementationNames.eth:0x7fC721ACC2183c292737C5a28Ea1B30d19f1cF29:
    - "KailuaVerifier"
    implementationNames.eth:0xDd26da83B27987A7040caE31f2E35d9Bd6f5DE59:
    + "KailuaVerifier"
    }
    contract KailuaTreasury (eth:0xc7EaCDd1E755d2823463Abc4434CA445F752b336) [risc0/KailuaTreasury] {
    +++ description: Kailua (RISC Zero ZK fault-proof) treasury: holds participation bonds, mints KailuaGame clones, and defines the vanguard proposer economics. Bonds confiscated from eliminated proposers are split 1/3 to the prover, 1/3 to the tournament winner, 1/3 burned.
    values.participationBond:
    - 0
    + "500000000000000000"
    values.participationBondFmt:
    - "0"
    + "0.5"
    values.vanguard:
    - "eth:0x0000000000000000000000000000000000000000"
    + "eth:0xD379de941E78Ab394d4D4917FcCE1CC45b6cd620"
    values.vanguardAdvantage:
    - 0
    + 2592000
    values.vanguardAdvantageFmt:
    - "0s"
    + "1mo"
    }
    EOA (eth:0xD379de941E78Ab394d4D4917FcCE1CC45b6cd620) {
    +++ description: None
    receivedPermissions.1:
    + {"permission":"interact","from":"eth:0xc7EaCDd1E755d2823463Abc4434CA445F752b336","description":"propose new state roots before anyone else, giving a first-mover advantage on the optimistic clock.","role":".vanguard"}
    }
    + Status: CREATED
    contract KailuaGame (eth:0x296e7aD6D441b0627768bC0650179a4206479444) [risc0/KailuaGame]
    +++ description: Implementation of the KailuaGame with type 1337. Based on this implementation, new KailuaGames are created with every new state root proposal.
    2026 June 15, 13:56 UTC
    16changes

    Guardian role on OptimismPortal2, SystemConfig and SuperchainConfig moved from Conduit Multisig 1 to the joint Ronin/Conduit Safe (RoninConduitOwner): SuperchainConfig was re-initialized via the standard StorageSetter→same-impl pattern, bumping initVersion 1 → 2 and setting the new guardian address. Conduit Multisig 1 remains challenger in DGF.

    contract Conduit Multisig 1 (eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746) [GnosisSafe] {
    +++ description: None
    values.$members.4:
    - "eth:0x65D1d44B8B2fE15d45A03708E0835C7E98a56007"
    values.$members.8:
    - "eth:0xa4000bDD2bB92ce6750b31F1eeda47Bd1cB8e6e4"
    values.multisigThreshold:
    - "4 of 12 (33%)"
    + "4 of 10 (40%)"
    receivedPermissions.1:
    - {"permission":"interact","from":"eth:0xEE552e802A50d855bD08E93dfcc69228FC7B9E2c","description":"Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless).","role":".guardian"}
    }
    contract OptimismPortal2 (eth:0x652CD53eCf9466E5Fb00D0E11d6CBf6469a56D77) [opstack/OptimismPortal2] {
    +++ description: The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame.
    values.guardian:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract SystemConfig (eth:0xc4f4F908C36C8119f1FBd52CebbDB30C6f2a23C1) [opstack/SystemConfig] {
    +++ description: Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.
    values.guardian:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract RoninConduitOwner (eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607) [GnosisSafe] {
    +++ description: 5-of-6 joint Ronin/Conduit Safe.
    receivedPermissions.2:
    + {"permission":"interact","from":"eth:0xEE552e802A50d855bD08E93dfcc69228FC7B9E2c","description":"Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless).","role":".guardian"}
    }
    contract SuperchainConfig (eth:0xEE552e802A50d855bD08E93dfcc69228FC7B9E2c) [opstack/SuperchainConfigFake_expiry] {
    +++ description: This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages pause states for each chain connected to it, as well as a global pause state for all chains. The guardian role can pause either separately, but each pause expires after 3mo 1d if left untouched.
    values.$pastUpgrades.1:
    + ["2026-06-09T07:02:35.000Z","0x7e9202c4d6cb60aa8f0d86f9524f58cc3b5edb505495f61503d9374e3859cdb6",["eth:0x6322C2f2D6a4305Fc033754d486A5A067Ee5F9b1"]]
    values.$pastUpgrades.2:
    + ["2026-06-09T07:02:35.000Z","0x7e9202c4d6cb60aa8f0d86f9524f58cc3b5edb505495f61503d9374e3859cdb6",["eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957"]]
    values.$upgradeCount:
    - 1
    + 3
    values.guardian:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    2026 June 04, 07:25 UTC
    High severity
    22changes

    Kailua (RISC Zero ZK fault-proof) deployed but not yet active. DisputeGameFactory registered game type 1337 → KailuaTreasury ( eth:0xc7EaCDd1… ). OptimismPortal2 and AnchorStateRegistry still have respectedGameType = 1 (PermissionedDisputeGame); cutover requires a separate change. Ronin KailuaTreasury (v1.2.0, eth:0xc7EaCDd1… ): verifier extracted to a separate KAILUA VERIFIER proxy, bond accounting reworked. Diff vs BOB v0.1.0 baseline: https://disco.l2beat.com/diff/eth:0xc7EaCDd1E755d2823463Abc4434CA445F752b336/eth:0x9B3E1661bccAF907893B71e4016c01513ae9263C. RoninConduitOwner got admin over the KailuaVerifier proxy ( eth:0x6b49976a… ), so the verifier proxy is upgradable along the same path as the other OP Stack contracts. RiscZeroVerifierRouter ( eth:0x8EaB2D97… ) is the shared RISC Zero verifier-selector router. Owner is a TimelockController ( eth:0x0b144E07… , 3d delay) governed by Safe eth:0x2E5bcc… . Both are shared RISC Zero infrastructure, not Ronin-specific.

    contract DisputeGameFactory (eth:0x45dA2CD511DA5FEAa535eBF166E628314a65843a) [opstack/DisputeGameFactory] {
    +++ description: The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them.
    +++ severity: HIGH
    values.game1337:
    - "eth:0x0000000000000000000000000000000000000000"
    + "eth:0xc7EaCDd1E755d2823463Abc4434CA445F752b336"
    }
    contract Conduit Multisig 1 (eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746) [GnosisSafe] {
    +++ description: None
    values.$members.0:
    + "eth:0xcdC931935768c0562AfE989A366a3Dc4d52F4853"
    values.$members.8:
    - "eth:0x3840f487A17A41100DD1Bf0946c34f132a57Fd5f"
    }
    contract RoninConduitOwner (eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607) [GnosisSafe] {
    +++ description: 5-of-6 joint Ronin/Conduit Safe.
    receivedPermissions.8:
    + {"permission":"upgrade","from":"eth:0x6b49976a7340D0A3C00d1bEBE0E36E2367D89c7C","role":"admin"}
    }
    + Status: CREATED
    contract TimelockController (eth:0x0b144E07A0826182B6b59788c34b32Bfa86Fb711) [global/TimelockController]
    +++ description: A timelock with access control. The current minimum delay is 3d.
    + Status: CREATED
    contract RiscZeroVerifierEmergencyStop (eth:0x1efDd13f831ceeEa14940806705A53D3211CD698) [risc0/RiscZeroVerifierEmergencyStop]
    +++ description: A verifier wrapper for the eth:0xafB31f5b70623CDF4b20Ada3f7230916A5A79df9 that allows pausing (emergency stop) the verifier by its owner.
    + Status: CREATED
    contract RiscZeroGroth16Verifier (eth:0x20ff7C2Cf391a5F096A2Cc181cb41916680f8E97) [taiko/RiscZeroGroth16Verifier]
    +++ description: Verifier contract for RISC Zero Groth16 proofs (version 2.0.0-rc.3).
    + Status: CREATED
    contract RiscZeroGroth16Verifier (eth:0x2a098988600d87650Fb061FfAff08B97149Fa84D) [taiko/RiscZeroGroth16Verifier]
    +++ description: Verifier contract for RISC Zero Groth16 proofs (version 3.0.0).
    + Status: CREATED
    contract Safe (eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609) [GnosisSafe]
    +++ description: None
    + Status: CREATED
    contract RiscZeroVerifierEmergencyStop (eth:0x44c220f0598345195cE99AD6A57aDfFcb9Ea33e7) [risc0/RiscZeroVerifierEmergencyStop]
    +++ description: A verifier wrapper for the eth:0xf70aBAb028Eb6F4100A24B203E113D94E87DE93C that allows pausing (emergency stop) the verifier by its owner.
    + Status: CREATED
    contract RiscZeroSetVerifier (eth:0x5005aBa3DFf7C940fcc1e48DccCAD611a80eEB85) [risc0/RiscZeroSetVerifier]
    +++ description: Set verifier contract for RISC Zero proofs (version 0.9.0). It allows verifying a whole set of proofs identified with a Merkle root at once, afterwards each individual proof could be efficiently verified just by checking Merkle inclusion against the verified root.
    + Status: CREATED
    contract RiscZeroGroth16Verifier (eth:0x54aCE3ED46529B4d4F3770C8Bad5dDC48717B9bF) [N/A]
    +++ description: None
    + Status: CREATED
    contract RiscZeroVerifierEmergencyStop (eth:0x68dC2cB4e61774873971c499D9b239ec5Ac540E3) [risc0/RiscZeroVerifierEmergencyStop]
    +++ description: A verifier wrapper for the eth:0x20ff7C2Cf391a5F096A2Cc181cb41916680f8E97 that allows pausing (emergency stop) the verifier by its owner.
    + Status: CREATED
    contract KailuaVerifier (eth:0x6b49976a7340D0A3C00d1bEBE0E36E2367D89c7C) [N/A]
    +++ description: Proxy in front of the Kailua proof verifier; routes verification requests to the canonical RiscZeroVerifierRouter and asserts the chain-specific rollup config and FPVM image ID.
    + Status: CREATED
    contract RiscZeroVerifierEmergencyStop (eth:0x844D5f01161E3559d36f23d0Aa9E9620949aF782) [risc0/RiscZeroVerifierEmergencyStop]
    +++ description: A verifier wrapper for the eth:0x5005aBa3DFf7C940fcc1e48DccCAD611a80eEB85 that allows pausing (emergency stop) the verifier by its owner.
    + Status: CREATED
    contract RiscZeroVerifierRouter (eth:0x8EaB2D97Dfce405A1692a21b3ff3A172d593D319) [risc0/RiscZeroVerifierRouter]
    +++ description: A router proxy that routes to verifiers based on selectors. The mapping can be changed by a permissioned owner (eth:0x0b144E07A0826182B6b59788c34b32Bfa86Fb711).
    + Status: CREATED
    contract RiscZeroVerifierEmergencyStop (eth:0x9F9994Eb4Cb5200198FEfb470f8b50301662e696) [risc0/RiscZeroVerifierEmergencyStop]
    +++ description: A verifier wrapper for the eth:0x2a098988600d87650Fb061FfAff08B97149Fa84D that allows pausing (emergency stop) the verifier by its owner.
    + Status: CREATED
    contract RiscZeroGroth16Verifier (eth:0xafB31f5b70623CDF4b20Ada3f7230916A5A79df9) [taiko/RiscZeroGroth16Verifier]
    +++ description: Verifier contract for RISC Zero Groth16 proofs (version 2.2.0).
    + Status: CREATED
    contract KailuaTreasury (eth:0xc7EaCDd1E755d2823463Abc4434CA445F752b336) [risc0/KailuaTreasury]
    +++ description: Kailua (RISC Zero ZK fault-proof) game implementation registered as game type 1337 in the DisputeGameFactory. Deployed but NOT yet active. Bonds confiscated from eliminated proposers are split 1/3 to the prover, 1/3 to the tournament winner, 1/3 burned.
    + Status: CREATED
    contract RiscZeroVerifierEmergencyStop (eth:0xDa8f3de6fBBdb261Ac771B813a578A7aBdA6B2b1) [risc0/RiscZeroVerifierEmergencyStop]
    +++ description: A verifier wrapper for the eth:0x54aCE3ED46529B4d4F3770C8Bad5dDC48717B9bF that allows pausing (emergency stop) the verifier by its owner.
    + Status: CREATED
    contract RiscZeroGroth16Verifier (eth:0xf70aBAb028Eb6F4100A24B203E113D94E87DE93C) [N/A]
    +++ description: None
    2026 May 21, 21:42 UTC
    42changes

    ProxyAdminOwner / owner rotated from Conduit Multisig 1 to a new 5-of-6 Safe ( eth:0xE9Ad9723… ) that is a joint Ronin/Conduit multisig (per Ronin team: 4 Ronin signers + 2 Conduit signers retained from Conduit Multisig 1). Affects AnchorStateRegistry, L1ERC721Bridge, DisputeGameFactory (owner + proxyAdminOwner), and the other Ronin contracts under that ProxyAdmin.

    contract AnchorStateRegistry (eth:0x0B95fF1d1B113bac3E29Ac0BBF2089126C9aE81A) [opstack/AnchorStateRegistry_post13] {
    +++ description: Contains the latest confirmed state root that can be used as a starting point in a dispute game. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame.
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract L1ERC721Bridge (eth:0x3a63087B36Ad5a2fD89C7C8517832dE067Fe4959) [opstack/L1ERC721Bridge] {
    +++ description: Used to bridge ERC-721 tokens from host chain to this chain.
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract DisputeGameFactory (eth:0x45dA2CD511DA5FEAa535eBF166E628314a65843a) [opstack/DisputeGameFactory] {
    +++ description: The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them.
    values.owner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract Conduit Multisig 1 (eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746) [GnosisSafe] {
    +++ description: None
    receivedPermissions.2:
    - {"permission":"interact","from":"eth:0x6FFbcf498CcF81111f397fa6065dEA13A47E573C","description":"set and change address mappings.","role":".owner","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.3:
    - {"permission":"interact","from":"eth:0xc4f4F908C36C8119f1FBd52CebbDB30C6f2a23C1","description":"it can update the preconfer address, the batch submitter (Sequencer) address and the gas configuration of the system.","role":".owner"}
    receivedPermissions.4:
    - {"permission":"upgrade","from":"eth:0x0B95fF1d1B113bac3E29Ac0BBF2089126C9aE81A","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.5:
    - {"permission":"upgrade","from":"eth:0x3a63087B36Ad5a2fD89C7C8517832dE067Fe4959","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.6:
    - {"permission":"upgrade","from":"eth:0x45dA2CD511DA5FEAa535eBF166E628314a65843a","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.7:
    - {"permission":"upgrade","from":"eth:0x51639D151456d0384285C6974e441A5D2B784B7D","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.8:
    - {"permission":"upgrade","from":"eth:0x652CD53eCf9466E5Fb00D0E11d6CBf6469a56D77","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.9:
    - {"permission":"upgrade","from":"eth:0x69Fcd2E75af364295EaF48Dc058338F80CFfb434","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.10:
    - {"permission":"upgrade","from":"eth:0x85Ce2Ccef125aa8d018c298d5eA0f2FB5E5063c1","description":"upgrading the bridge implementation can give access to all funds escrowed therein.","role":".$admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.11:
    - {"permission":"upgrade","from":"eth:0xc4f4F908C36C8119f1FBd52CebbDB30C6f2a23C1","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    receivedPermissions.12:
    - {"permission":"upgrade","from":"eth:0xEE552e802A50d855bD08E93dfcc69228FC7B9E2c","role":"admin","via":[{"address":"eth:0x502e993a5aFC9fE59b00B07ee500729D71092E34"}]}
    receivedPermissions.13:
    - {"permission":"upgrade","from":"eth:0xF9aD628d9F907ad5d46Ab80100dacDf09EAc9A8e","role":"admin","via":[{"address":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC"}]}
    directlyReceivedPermissions:
    - [{"permission":"act","from":"eth:0x502e993a5aFC9fE59b00B07ee500729D71092E34","role":".owner"},{"permission":"act","from":"eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC","role":".owner"}]
    }
    contract ProxyAdmin (eth:0x502e993a5aFC9fE59b00B07ee500729D71092E34) [global/ProxyAdmin] {
    +++ description: None
    values.owner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract OptimismPortal2 (eth:0x652CD53eCf9466E5Fb00D0E11d6CBf6469a56D77) [opstack/OptimismPortal2] {
    +++ description: The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame.
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract DelayedWETH (eth:0x69Fcd2E75af364295EaF48Dc058338F80CFfb434) [opstack/DelayedWETH] {
    +++ description: Contract designed to hold the bonded ETH for each game. It is designed as a wrapper around WETH to allow an owner to function as a backstop if a game would incorrectly distribute funds.
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract ProxyAdmin (eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC) [global/ProxyAdmin] {
    +++ description: None
    values.owner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract L1StandardBridge (eth:0x85Ce2Ccef125aa8d018c298d5eA0f2FB5E5063c1) [opstack/L1StandardBridge] {
    +++ description: The main entry point to deposit ERC20 tokens from host chain to this chain.
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract SystemConfig (eth:0xc4f4F908C36C8119f1FBd52CebbDB30C6f2a23C1) [opstack/SystemConfig] {
    +++ description: Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.
    values.owner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract SuperchainConfig (eth:0xEE552e802A50d855bD08E93dfcc69228FC7B9E2c) [opstack/SuperchainConfigFake_expiry] {
    +++ description: This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages pause states for each chain connected to it, as well as a global pause state for all chains. The guardian role can pause either separately, but each pause expires after 3mo 1d if left untouched.
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    contract L1CrossDomainMessenger (eth:0xF9aD628d9F907ad5d46Ab80100dacDf09EAc9A8e) [opstack/L1CrossDomainMessenger] {
    +++ description: Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain's epoch gas limit, it can be resubmitted via this contract's replay function.
    values.proxyAdminOwner:
    - "eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746"
    + "eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607"
    }
    + Status: CREATED
    contract PreimageOracle (eth:0x1fb8cdFc6831fc866Ed9C51aF8817Da5c287aDD3) [opstack/PreimageOracle]
    +++ description: The PreimageOracle contract is used to load the required data from L1 for a dispute game.
    + Status: CREATED
    contract MIPS (eth:0x6463dEE3828677F6270d83d45408044fc5eDB908) [opstack/MIPS]
    +++ description: The MIPS contract is used to execute the final step of the dispute game which objectively determines the winner of the dispute.
    + Status: CREATED
    contract Safe (eth:0xE9Ad9723C24d946958f9FD3Bc861BbF983525607) [GnosisSafe]
    +++ description: None
    2026 May 18, 09:18 UTC
    20changes

    Initial discovery.

    Initial discovery

    + Status: CREATED
    contract AnchorStateRegistry (eth:0x0B95fF1d1B113bac3E29Ac0BBF2089126C9aE81A) [opstack/AnchorStateRegistry_post13]
    +++ description: Contains the latest confirmed state root that can be used as a starting point in a dispute game. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame.
    + Status: CREATED
    contract MainchainBridgeManager (eth:0x2Cf3CFb17774Ce0CFa34bB3f3761904e7fc3FaDB) [N/A]
    +++ description: Governance and proxy-admin contract for the legacy MainchainGateway bridge. Holds the operator/governor set, tallies stake-weighted votes for bridge proposals (operator rotations, threshold changes, withdrawals).
    + Status: CREATED
    contract L1ERC721Bridge (eth:0x3a63087B36Ad5a2fD89C7C8517832dE067Fe4959) [opstack/L1ERC721Bridge]
    +++ description: Used to bridge ERC-721 tokens from host chain to this chain.
    + Status: CREATED
    contract DisputeGameFactory (eth:0x45dA2CD511DA5FEAa535eBF166E628314a65843a) [opstack/DisputeGameFactory]
    +++ description: The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them.
    + Status: CREATED
    contract Conduit Multisig 1 (eth:0x4a4962275DF8C60a80d3a25faEc5AA7De116A746) [GnosisSafe]
    +++ description: None
    + Status: CREATED
    contract ProxyAdmin (eth:0x502e993a5aFC9fE59b00B07ee500729D71092E34) [global/ProxyAdmin]
    +++ description: None
    + Status: CREATED
    contract OptimismMintableERC20Factory (eth:0x51639D151456d0384285C6974e441A5D2B784B7D) [opstack/OptimismMintableERC20Factory]
    +++ description: A helper contract that generates OptimismMintableERC20 contracts on the network it's deployed to. OptimismMintableERC20 is a standard extension of the base ERC20 token contract designed to allow the L1StandardBridge contracts to mint and burn tokens. This makes it possible to use an OptimismMintableERC20 as this chain's representation of a token on the host chain, or vice-versa.
    + Status: CREATED
    contract LegacyBridgeOwner (eth:0x51F6696Ae42C6C40CA9F5955EcA2aaaB1Cefb26e) [GnosisSafe]
    +++ description: None
    + Status: CREATED
    contract PermissionedDisputeGame (eth:0x58bf355C5d4EdFc723eF89d99582ECCfd143266A) [opstack/PermissionedDisputeGame]
    +++ description: Same as FaultDisputeGame, but only two permissioned addresses are designated as proposer and challenger.
    + Status: CREATED
    contract MainchainGateway (eth:0x64192819Ac13Ef72bF6b5AE239AC672B43a9AF08) [N/A]
    +++ description: Legacy multi-sig-secured Ronin bridge contract holding the L1 side of deposits made before the April 2025 Chainlink CCIP migration. Still custodies residual user balances (ETH backing legacy WETH on Ronin, the deprecated WBTC contract, and dust). Withdrawals authorised by the Ronin BridgeOperator stake-weighted threshold via MainchainBridgeManager.
    + Status: CREATED
    contract OptimismPortal2 (eth:0x652CD53eCf9466E5Fb00D0E11d6CBf6469a56D77) [opstack/OptimismPortal2]
    +++ description: The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame.
    + Status: CREATED
    contract DelayedWETH (eth:0x69Fcd2E75af364295EaF48Dc058338F80CFfb434) [opstack/DelayedWETH]
    +++ description: Contract designed to hold the bonded ETH for each game. It is designed as a wrapper around WETH to allow an owner to function as a backstop if a game would incorrectly distribute funds.
    + Status: CREATED
    contract AddressManager (eth:0x6FFbcf498CcF81111f397fa6065dEA13A47E573C) [opstack/AddressManager]
    +++ description: Legacy contract used to manage a mapping of string names to addresses. Modern OP stack uses a different standard proxy system instead, but this contract is still necessary for backwards compatibility with several older contracts.
    + Status: CREATED
    contract ProxyAdmin (eth:0x757077Ddf12B652430DCE8fF3e4c749F5Ca861fC) [global/ProxyAdmin]
    +++ description: None
    + Status: CREATED
    contract L1StandardBridge (eth:0x85Ce2Ccef125aa8d018c298d5eA0f2FB5E5063c1) [opstack/L1StandardBridge]
    +++ description: The main entry point to deposit ERC20 tokens from host chain to this chain.
    + Status: CREATED
    contract Wrapped Ether Token (eth:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2) [N/A]
    +++ description: None
    + Status: CREATED
    contract SystemConfig (eth:0xc4f4F908C36C8119f1FBd52CebbDB30C6f2a23C1) [opstack/SystemConfig]
    +++ description: Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.
    + Status: CREATED
    contract SuperchainConfig (eth:0xEE552e802A50d855bD08E93dfcc69228FC7B9E2c) [opstack/SuperchainConfigFake_expiry]
    +++ description: This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages pause states for each chain connected to it, as well as a global pause state for all chains. The guardian role can pause either separately, but each pause expires after 3mo 1d if left untouched.
    + Status: CREATED
    contract PauseEnforcer (eth:0xF184a6Cd470Cac2CF5cD4fBa34e20D482D6A6062) [N/A]
    +++ description: Immutable emergency-pause contract for the legacy MainchainGateway. Holders of the SENTRY_ROLE can flip MainchainGateway into a paused state to halt deposits and withdrawals in an emergency.
    + Status: CREATED
    contract L1CrossDomainMessenger (eth:0xF9aD628d9F907ad5d46Ab80100dacDf09EAc9A8e) [opstack/L1CrossDomainMessenger]
    +++ description: Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain's epoch gas limit, it can be resubmitted via this contract's replay function.

    The system has a centralized operator

    The operator is the only entity that can propose blocks. A live and trustworthy operator is vital to the health of the system.

    • MEV can be extracted if the operator exploits their centralized position and frontruns user transactions.

    Users can force any transaction

    Because the state of the system is based on transactions submitted on the underlying host chain and anyone can submit their transactions there it allows the users to circumvent censorship by interacting with the smart contract on the host chain directly.

    1. Sequencing Window - OP Mainnet Specs
    2. OptimismPortal2.sol - source code, depositTransaction function

    Regular exits

    The user initiates the withdrawal by submitting a regular transaction on this chain. When a state root containing such transaction is settled, the funds become available for withdrawal on L1 after 3d 12h. Withdrawal inclusion can be proven before state root settlement, but a 7d period has to pass before it becomes actionable. The process of state root settlement takes a challenge period of at least 3d to complete. Finally the user submits an L1 transaction to claim the funds. This transaction requires a merkle proof.

    1. OptimismPortal2.sol - Etherscan source code, proveWithdrawalTransaction function
    2. OptimismPortal2.sol - Etherscan source code, finalizeWithdrawalTransaction function

    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, including forced withdrawals from L1 and regular messages initiated on L2. Once the force operation is submitted and if the request is serviced, the operation follows the flow of a regular message.

    1. Forced withdrawal from an OP Stack blockchain

    EVM compatible smart contracts are supported

    OP stack chains are pursuing the EVM Equivalence model. No changes to smart contracts are required regardless of the language they are written in, i.e. anything deployed on L1 can be deployed on L2.

    1. Introducing EVM Equivalence

    External bridge architecture

    The May 2026 L2 migration deployed the OP Stack canonical bridge (OptimismPortal2 and L1StandardBridge) but did not migrate user funds into it; it is currently empty. User assets are custodied on two separate L1 paths, neither of which is the canonical bridge analyzed on this page: (1) Chainlink CCIP TokenPools, the active bridge since April 2025, securing 12 tokens including AXS, USDC, WETH, WBTC (new contract), YGG, PIXEL and SLP via Chainlink DON attestations and the Risk Management Network; (2) the legacy MainchainGateway, deprecated in April 2025 but still holding residual balances (legacy WBTC, ETH backing of legacy WETH, dust), withdrawable through the Ronin BridgeOperator stake-weighted multisig. Sky Mavis has not announced a plan to migrate liquidity into the OP Stack bridge.

    1. MainchainGateway - Etherscan
    2. Ronin Bridge to Chainlink CCIP migration - Ronin Blog
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    Ethereum

    Actors:

    RoninConduitOwner0xE9Ad…5607

    A Multisig with 5/6 threshold. 5-of-6 joint Ronin/Conduit Safe.

    • Can upgrade with no delay
      • AnchorStateRegistry
      • L1ERC721Bridge
      • DisputeGameFactory
      • OptimismMintableERC20Factory
      • OptimismPortal2
      • DelayedWETH
      • KailuaVerifier
      • L1StandardBridge
      • SystemConfig
      • SuperchainConfig
      • L1CrossDomainMessenger
    • Can interact with AddressManager
      • set and change address mappings
    • Can interact with SystemConfig
      • it can update the preconfer address, the batch submitter (Sequencer) address and the gas configuration of the system
    • Can interact with SuperchainConfig
      • Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless)
    MainchainBridgeManager0x2Cf3…FaDB

    Governance and proxy-admin contract for the legacy MainchainGateway bridge. Holds the operator/governor set, tallies stake-weighted votes for bridge proposals (operator rotations, threshold changes, withdrawals).

    • Can upgrade with no delay
      • MainchainGateway

    A Multisig with 3/5 threshold.

    • Can interact with TimelockController
      • cancel queued transactions
      • execute transactions that are ready
      • manage all access control roles with 3d delay
      • propose transactions
    • Can interact with RiscZeroVerifierEmergencyStop
    • Can interact with RiscZeroVerifierEmergencyStop
    • Can interact with RiscZeroVerifierEmergencyStop
    • Can interact with RiscZeroVerifierRouter
      • add/remove verifiers and the selectors they are mapped to with 3d delay
    • Can interact with RiscZeroVerifierEmergencyStop
    • Can interact with RiscZeroVerifierEmergencyStop
    Used in:
    LegacyBridgeOwner0x51F6…b26e

    A Multisig with 3/5 threshold.

    • Can upgrade with no delay
      • MainchainBridgeManager
    • Can interact with SystemConfig
      • Allowed to commit transactions from the current layer to the host chain
    • Can interact with KailuaTreasury
      • propose new state roots before anyone else, giving a first-mover advantage on the optimistic clock
    • Can interact with RiscZeroVerifierEmergencyStop
    Used in:
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    A diagram of the smart contract architecture
    A diagram of the smart contract architecture

    Ethereum

    RiscZeroGroth16Verifier0x20ff…8E97

    Verifier contract for RISC Zero Groth16 proofs (version 2.0.0-rc.3).

    Implementation used in:
    RiscZeroGroth16Verifier0x2a09…a84D

    Verifier contract for RISC Zero Groth16 proofs (version 3.0.0).

    Implementation used in:

    The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
    Implementation used in:
    RiscZeroGroth16Verifier0x54aC…B9bF

    Verifier contract for RISC Zero Groth16 proofs (version 2.0.3).

    Implementation used in:

    The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the KailuaGame.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
    The following tokens are included in the value secured calculation:
    ETH token logo
    Implementation used in:
    RiscZeroGroth16Verifier0xafB3…9df9

    Verifier contract for RISC Zero Groth16 proofs (version 2.2.0).

    Implementation used in:

    Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
      • batcherHash: EOA 1
      • owner: RoninConduitOwner
    Implementation used in:
    RiscZeroGroth16Verifier0xf70a…E93C

    Verifier contract for RISC Zero Groth16 proofs. This older implementation exposes control-root and selector constants but does not expose a VERSION getter.

    Implementation used in:

    This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages pause states for each chain connected to it, as well as a global pause state for all chains. The guardian role can pause either separately, but each pause expires after 3mo 1d if left untouched.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
      • guardian: RoninConduitOwner
    Implementation used in:

    Used to bridge ERC-721 tokens from host chain to this chain.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
    Implementation used in:

    The main entry point to deposit ERC20 tokens from host chain to this chain.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner

    All supported tokens in this escrow are included in the value secured calculation.

    Implementation used in:

    Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain’s epoch gas limit, it can be resubmitted via this contract’s replay function.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
    Implementation used in:
    TimelockController0x0b14…b711

    A timelock with access control. The current minimum delay is 3d.

    • Roles:
      • canceller: Safe
      • defaultAdmin: TimelockController; ultimately Safe
      • executor: Safe
      • proposer: Safe
    Implementation used in:

    Contains the latest confirmed state root that can be used as a starting point in a dispute game. It specifies which game type can be used for withdrawals, which currently is the KailuaGame.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
    Implementation used in:
    RiscZeroVerifierEmergencyStop
    4 instances
    0x1efD…D6980x68dC…40E30x9F99…e6960xDa8f…B2b1

    A verifier wrapper for the RiscZeroGroth16Verifier that allows pausing (emergency stop) the verifier by its owner.

    • Roles:
      • owner: Safe
    Implementation used in:
    PreimageOracle0x1fb8…aDD3

    The PreimageOracle contract is used to load the required data from L1 for a dispute game.

    Implementation used in:
    KailuaGame0x296e…9444

    Implementation of the KailuaGame with type 1337. Based on this implementation, new KailuaGames are created with every new state root proposal.

    RiscZeroVerifierEmergencyStop0x44c2…33e7

    A verifier wrapper for the RiscZeroGroth16Verifier that allows pausing (emergency stop) the verifier by its owner.

    • Roles:
      • owner: EOA 3
    Implementation used in:
    RiscZeroSetVerifier0x5005…EB85

    Set verifier contract for RISC Zero proofs (version 0.9.0). It allows verifying a whole set of proofs identified with a Merkle root at once, afterwards each individual proof could be efficiently verified just by checking Merkle inclusion against the verified root.

    Implementation used in:
    ProxyAdmin
    2 instances
    0x502e…2E340x7570…61fC
    • Roles:
      • owner: RoninConduitOwner

    A helper contract that generates OptimismMintableERC20 contracts on the network it’s deployed to. OptimismMintableERC20 is a standard extension of the base ERC20 token contract designed to allow the L1StandardBridge contracts to mint and burn tokens. This makes it possible to use an OptimismMintableERC20 as this chain’s representation of a token on the host chain, or vice-versa.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
    Implementation used in:
    PermissionedDisputeGame0x58bf…266A

    Same as FaultDisputeGame, but only two permissioned addresses are designated as proposer and challenger.

    Implementation used in:

    Legacy multi-sig-secured Ronin bridge contract holding the L1 side of deposits made before the April 2025 Chainlink CCIP migration. Still custodies residual user balances (ETH backing legacy WETH on Ronin, the deprecated WBTC contract, and dust). Withdrawals authorised by the Ronin BridgeOperator stake-weighted threshold via MainchainBridgeManager.

    • Roles:
      • admin: MainchainBridgeManager

    All supported tokens in this escrow are included in the value secured calculation.

    The MIPS contract is used to execute the final step of the dispute game which objectively determines the winner of the dispute.

    Implementation used in:

    Contract designed to hold the bonded ETH for each game. It is designed as a wrapper around WETH to allow an owner to function as a backstop if a game would incorrectly distribute funds.

    • Roles:
      • admin: ProxyAdmin; ultimately RoninConduitOwner
    Implementation used in:

    Proxy in front of the Kailua proof verifier; routes verification requests to the canonical RiscZeroVerifierRouter and asserts the chain-specific rollup config and FPVM image ID.

    • Roles:
      • admin: RoninConduitOwner
    RiscZeroVerifierEmergencyStop0x844D…F782

    A verifier wrapper for the RiscZeroSetVerifier that allows pausing (emergency stop) the verifier by its owner.

    • Roles:
      • owner: Safe
    Implementation used in:
    RiscZeroVerifierRouter0x8EaB…D319

    A router proxy that routes to verifiers based on selectors. The mapping can be changed by a permissioned owner (TimelockController).

    • Roles:
      • owner: TimelockController; ultimately Safe
    Implementation used in:
    Wrapped Ether Token0xC02a…6Cc2
    Implementation used in:
    KailuaTreasury0xc7Ea…b336

    Kailua (RISC Zero ZK fault-proof) treasury: holds participation bonds, mints KailuaGame clones, and defines the vanguard proposer economics. Bonds confiscated from eliminated proposers are split 1/3 to the prover, 1/3 to the tournament winner, 1/3 burned.

    • Roles:
      • vanguard: EOA 2
    PauseEnforcer0xF184…6062

    Immutable emergency-pause contract for the legacy MainchainGateway. Holders of the SENTRY_ROLE can flip MainchainGateway into a paused state to halt deposits and withdrawals in an emergency.

    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).

    Program Hashes

    Name
    Hash
    Repository
    Verification
    Used in
    0xd3c0...a90b
    Ronin logo
    0x7090...2cc9
    Base Chain logoRonin logo