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Taiko Alethia is an Ethereum-equivalent rollup on the Ethereum network. Taiko aims at combining based sequencing and a multi-proof system through SP1, RISC0 and TEEs.
Taiko Alethia is an Ethereum-equivalent rollup on the Ethereum network. Taiko aims at combining based sequencing and a multi-proof system through SP1, RISC0 and TEEs.
Consequence: projects without a proper proof system fully rely on single entities to safely update the state. A malicious proposer can finalize an invalid state, which can cause loss of funds.
Learn more about the recategorisation here.
2025 May 28 — 2026 May 28
The section shows the operating costs that L2s pay to Ethereum.
2025 May 28 — 2026 May 28
This section shows how much data the project publishes to its data-availability (DA) layer over time. The project currently posts data to
Ethereum.
2026 Apr 02 — May 28
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.
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 10min (from 2026 May 29, 17:44 UTC until 2026 May 29, 17:54 UTC). These typically occur every 6min 24s on average.
Preconfs introduction
2025 Aug 11th
Taiko implements preconfs - whitelisted actors provide fast soft confirmations for L2 txs.
Plonky3 vulnerability patch
2025 Jun 4th
SP1 verifier is patched to fix critical vulnerability in Plonky3 proof system (SP1 dependency).
A multi-proof system is used. There are four verifiers available: SGX (Geth), SGX (Reth), SP1 and RISC0. Two of them must be used to prove a proposal range, and SGX (Geth) is mandatory. The end state root is supplied during the prove call and is checked against the accompanying SGX/zkVM proof. Proving is currently gated by ProverWhitelist, which has 2 whitelisted provers in discovery, and becomes permissionless only after an unproven proposal is > 5d old.
All of the data needed for proof construction is published on Ethereum L1.
There is no window for users to exit in case of an unwanted upgrade since contracts are instantly upgradable.
Anyone can propose after 1d 1h if forced inclusions are ignored, and proving becomes permissionless after 5d if a proposal remains unproven.
All the data that is used to construct the system state is published on chain in the form of blobs. This ensures that it will be available for enough time.
Taiko uses a multi-proof system to validate state transitions. The system requires two proofs among four available verifiers: SGX (Geth), SGX (Reth), SP1, and RISC0. This means that a proposal range can be proven without providing a ZK proof if SGX (Geth) and SGX (Reth) are used together. New proposals target a proof submission cadence of 4h. Proving is currently centralized behind ProverWhitelist with 2 whitelisted provers. Non-whitelisted actors must wait 5d before the whitelist is dropped, and MainnetInbox currently sets minBond=0 and livenessBond=0. The multi-proof system allows detecting bugs in the verifiers if they produce different results for the same proposal range. If such a bug is detected, the system gets automatically paused.
Funds can be stolen if a malicious block is proven by compromised SGX instances.

Taiko Alethia has a governance structure relying primarily on a 7/9 Security Council, checked by a token DAO that is limited to veto permissions. The closed operator whitelists are managed by the 4/6 Taiko Multisig and related EOAs. Governance proposals (both paths) hold all important upgrade and config permissions in the system.
A threshold of 5 approving Security Council members is required to create a Standard proposal. It is delayed while being publicly auditable by 7d in the OptimisticTokenVotingPlugin contract and can be vetoed by 10% of votable TAIKO tokens during that time. If not vetoed, the standard proposal passes and can be executed.
Emergency proposals are encrypted at proposal time and can only be read by Security Council members. If approved by 7 Security Council members, they can be immediately decrypted and executed.
The proof system currently does not require zk proofs to validate state transitions and state can be finalized with SGX proofs only. The optional zk verifier contracts can be upgraded by Multisigs. Operator roles (sequencer, proposer) are closed and the whitelist is managed by the Taiko Multisig and related EOAs.
The metrics include upgrades on the currently used proxy contracts. Historical proxy contracts and changes of such are not included.
EOA removed from the Risc0 timelock accessControl (Multisig remains). One SC signer changed their local ms signer.
EOA removed from the Risc0 timelock accessControl (Multisig remains). One SC signer changed their local ms signer.
| contract TimelockController (eth:0x0b144E07A0826182B6b59788c34b32Bfa86Fb711) [global/TimelockController] { | |
| +++ description: A timelock with access control. The current minimum delay is 3d. | |
| values.accessControl.PROPOSER_ROLE.members.0: | |
| - | "eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412" |
| values.accessControl.CANCELLER_ROLE.members.0: | |
| - | "eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412" |
| values.accessControl.EXECUTOR_ROLE.members.0: | |
| - | "eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412" |
| values.Canceller.0: | |
| - | "eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412" |
| values.Executor.0: | |
| - | "eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412" |
| values.Proposer.0: | |
| - | "eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412" |
| } |
| contract Taiko Multisig (eth:0x9CBeE534B5D8a6280e01a14844Ee8aF350399C7F) [GnosisSafe] { | |
| +++ description: None | |
| values.$members.4: | |
| - | "eth:0x0F026a3efE44E0Fe34B87375EFe69b16c05D0438" |
| + | "eth:0xF28C8D6b44361255FA7C116d09ccD5F914398C10" |
| } |
| contract Gustavo Gonzalez Taiko (eth:0xb47fE76aC588101BFBdA9E68F66433bA51E8029a) [GnosisSafe] { | |
| +++ description: None | |
| values.$members.3: | |
| - | "eth:0x30bc4C0Baf55A37Ccf2d626Bc592bd7715b75De2" |
| + | "eth:0xF28C8D6b44361255FA7C116d09ccD5F914398C10" |
| } |
| contract ProverWhitelist (eth:0xEa798547d97e345395dA071a0D7ED8144CD612Ae) [taiko/ProverWhitelist] { | |
| +++ description: Defines the whitelist of addresses allowed to prove proposals. Non-whitelisted provers must wait for the permissionless proving delay before they can submit proofs. | |
| values.proverCount: | |
| - | 1 |
| + | 2 |
| } |
Risc0 emergency stop moved from EOA to multisig.
Risc0 emergency stop moved from EOA to multisig.
| contract Safe (eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609) [GnosisSafe] { | |
| +++ description: None | |
| receivedPermissions.5: | |
| + | {"permission":"interact","from":"eth:0x9F9994Eb4Cb5200198FEfb470f8b50301662e696","description":"pause the verifier.","role":".owner"} |
| } |
| contract RiscZeroVerifierEmergencyStop (eth:0x9F9994Eb4Cb5200198FEfb470f8b50301662e696) [risc0/RiscZeroVerifierEmergencyStop] { | |
| +++ description: A verifier wrapper for the eth:0x2a098988600d87650Fb061FfAff08B97149Fa84D that allows pausing (emergency stop) the verifier by its owner. | |
| values.owner: | |
| - | "eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412" |
| + | "eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609" |
| } |
| EOA (eth:0xF616A4f81857CFEe54A4A049Ec187172574bd412) { | |
| +++ description: None | |
| receivedPermissions.5: | |
| - | {"permission":"interact","from":"eth:0x9F9994Eb4Cb5200198FEfb470f8b50301662e696","description":"pause the verifier.","role":".owner"} |
| } |
config related: add taiko gov details. new proposal queued: raiko2, updates program hashes
config related: add taiko gov details.
new proposal queued: raiko2, updates program hashes
| contract OptimisticTokenVotingPlugin (eth:0x989E348275b659d36f8751ea1c10D146211650BE) [taiko/OptimisticTokenVotingPlugin] { | |
| +++ description: An optimistic governance module. Standard proposals pass and can be executed unless 10% of votable TAIKO veto them within 7d. Emergency proposals can be executed without delay. | |
| values.proposalCount: | |
| - | 30 |
| + | 31 |
| values.proposalIds.30: | |
| + | "605401718776602992082262606618382736114237571102" |
| } |
| contract Multisig (eth:0xD7dA1C25E915438720692bC55eb3a7170cA90321) [taiko/Multisig] { | |
| +++ description: Modular Governance contract allowing for proposing, voting on and executing proposals (e.g. for Security Council standard proposals). | |
| +++ description: total standard proposal count. | |
| +++ severity: HIGH | |
| values.proposalCount: | |
| - | 19 |
| + | 20 |
| } |
RiscZeroVerifierRouter: add new multisig as ac admin (was EOA-only before). L2BEAT removes one safe member from the SC safe. config related: ignore anchor details
RiscZeroVerifierRouter: add new multisig as ac admin (was EOA-only before).
L2BEAT removes one safe member from the SC safe.
config related: ignore anchor details
| contract TimelockController (eth:0x0b144E07A0826182B6b59788c34b32Bfa86Fb711) [global/TimelockController] { | |
| +++ description: A timelock with access control. The current minimum delay is 3d. | |
| values.accessControl.PROPOSER_ROLE.members.1: | |
| + | "eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609" |
| values.accessControl.CANCELLER_ROLE.members.1: | |
| + | "eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609" |
| values.accessControl.EXECUTOR_ROLE.members.1: | |
| + | "eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609" |
| values.Canceller.1: | |
| + | "eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609" |
| values.Executor.1: | |
| + | "eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609" |
| values.Proposer.1: | |
| + | "eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609" |
| } |
| contract L2BEAT (eth:0xf1cF63589A1e012F9124182c9eAa36B5333e5f06) [GnosisSafe] { | |
| +++ description: None | |
| values.$members.2: | |
| - | "eth:0x166868E5AE72592a06056775236d2E4D64CDcCa9" |
| values.multisigThreshold: | |
| - | "2 of 3 (67%)" |
| + | "2 of 2 (100%)" |
| } |
| contract PreconfWhitelist (eth:0xFD019460881e6EeC632258222393d5821029b2ac) [taiko/PreconfWhitelist] { | |
| +++ description: Contains the whitelist of addresses allowed to propose batches on L1 and issue preconfirmations. It dynamically selects a single operator for a given epoch using the Ethereum beacon block root as a source of randomness. | |
| values.operatorMapping.1: | |
| - | "eth:0x5F62d006C10C009ff50C878Cd6157aC861C99990" |
| values.operatorMapping.2: | |
| + | "eth:0x5F62d006C10C009ff50C878Cd6157aC861C99990" |
| } |
| + | Status: CREATED |
| contract Safe (eth:0x2E5bcc9959dB5F5016F830E47943b07242CB2609) [GnosisSafe] | |
| +++ description: None |
two proposals are executed: - emergency, clean up before cleanup: https://dao.taiko.xyz/plugins/community-proposals/ /proposals/29 - prop 28, clean up after shasta: https://dao.taiko.xyz/plugins/community-proposals/ /proposals/28 no significant changes.
two proposals are executed:
no significant changes.
| contract EmergencyMultisig (eth:0x2AffADEb2ef5e1F2a7F58964ee191F1e88317ECd) { | |
| +++ description: Modular Governance contract allowing for proposing, voting on and executing encrypted proposals (e.g. for Security Council emergency proposals). | |
| +++ description: The total count of encrypted emergency proposals created. | |
| values.proposalCount: | |
| - | 28 |
| + | 29 |
| } |
| contract Taiko Foundation Treasury Multisig (eth:0x363e846B91AF677Fb82f709b6c35BD1AaFc6B3Da) { | |
| +++ description: None | |
| values.$members.1: | |
| - | "eth:0x0F026a3efE44E0Fe34B87375EFe69b16c05D0438" |
| + | "eth:0xF28C8D6b44361255FA7C116d09ccD5F914398C10" |
| } |
| contract TaikoDAOController (eth:0x75Ba76403b13b26AD1beC70D6eE937314eeaCD0a) { | |
| +++ description: Middleware contract that maintains ownership of DAO-controlled assets and contracts. Its token weight does not count towards the DAO quorum. | |
| directlyReceivedPermissions.6: | |
| + | {"permission":"interact","from":"eth:0x9e0a24964e5397B566c1ed39258e21aB5E35C77C","description":"pause and unpause proofs and verification.","role":".owner"} |
| } |
| contract OptimisticTokenVotingPlugin (eth:0x989E348275b659d36f8751ea1c10D146211650BE) { | |
| +++ description: An optimistic governance module. Proposals pass and can be executed unless 10% of votable TAIKO veto them within 7d. | |
| values.proposalCount: | |
| - | 29 |
| + | 30 |
| values.proposalIds.29: | |
| + | "604873005729564317786488715670244117998223753245" |
| } |
| contract DAO (eth:0x9CDf589C941ee81D75F34d3755671d614f7cf261) { | |
| +++ description: The main contract and entrypoint of the Aragon-based DAO governance framework. Fine-grained DAO permissions, proposals, voting and thresholds are configured here. | |
| receivedPermissions.6: | |
| + | {"permission":"interact","from":"eth:0x9e0a24964e5397B566c1ed39258e21aB5E35C77C","description":"pause and unpause proofs and verification.","role":".owner","via":[{"address":"eth:0x75Ba76403b13b26AD1beC70D6eE937314eeaCD0a"}]} |
| } |
| contract SignalService (eth:0x9e0a24964e5397B566c1ed39258e21aB5E35C77C) { | |
| +++ description: Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications to prove that a specific L2 signal or state transition occurred via Merkle proofs. | |
| name: | |
| - | "SignalServiceForkRouter" |
| + | "SignalService" |
| template: | |
| - | "taiko/SignalServiceForkRouter" |
| + | "taiko/SignalService" |
| sourceHashes.1: | |
| - | "0x48d2edc5c332edbe5587795ecd9c72063d865a58d79f71e4fc30e28e91e88c50" |
| + | "0x9da4ee2d38b5914e0408dd1d413eef87e7f2ae62c6ca8240e657f4cc8cfaa84c" |
| description: | |
| - | "Routes to the Shasta SignalService post shasta fork." |
| + | "Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications to prove that a specific L2 signal or state transition occurred via Merkle proofs." |
| values.$implementation: | |
| - | "eth:0x6a4B15E4b0296B2ECE03Ee9Ed74E4A3E3ECA68D6" |
| + | "eth:0xBC442F342FE247Dc7981AC7Fbe8293c8891F8752" |
| values.$pastUpgrades.9: | |
| + | ["2026-04-30T15:14:11.000Z","0xfcd6ca82025b847a3508db2d3c82327a19e3c4afda867acae8c09da147667036",["eth:0xBC442F342FE247Dc7981AC7Fbe8293c8891F8752"]] |
| values.$upgradeCount: | |
| - | 9 |
| + | 10 |
| values.newFork: | |
| - | "eth:0xBC442F342FE247Dc7981AC7Fbe8293c8891F8752" |
| values.oldFork: | |
| - | "eth:0x42Ec977eb6B09a8D78c6D486c3b0e63569bA851c" |
| values.shastaForkTimestamp: | |
| - | 1775135700 |
| values.impl: | |
| + | "eth:0xBC442F342FE247Dc7981AC7Fbe8293c8891F8752" |
| values.inNonReentrant: | |
| + | false |
| values.paused: | |
| + | false |
| values.resolver: | |
| + | "eth:0x0000000000000000000000000000000000000000" |
| implementationNames.eth:0x6a4B15E4b0296B2ECE03Ee9Ed74E4A3E3ECA68D6: | |
| - | "SignalServiceForkRouter" |
| implementationNames.eth:0xBC442F342FE247Dc7981AC7Fbe8293c8891F8752: | |
| + | "SignalService" |
| category: | |
| - | {"name":"Spam","priority":-1} |
| } |
| - | Status: DELETED |
| contract SignalService (eth:0xBC442F342FE247Dc7981AC7Fbe8293c8891F8752) | |
| +++ description: Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications to prove that a specific L2 signal or state transition occurred via Merkle proofs. |
| contract PreconfWhitelist (eth:0xFD019460881e6EeC632258222393d5821029b2ac) { | |
| +++ description: Contains the whitelist of addresses allowed to propose batches on L1 and issue preconfirmations. It dynamically selects a single operator for a given epoch using the Ethereum beacon block root as a source of randomness. | |
| values.operatorMapping.1: | |
| + | "eth:0x5F62d006C10C009ff50C878Cd6157aC861C99990" |
| values.operatorMapping.2: | |
| + | "eth:0x000cb000E880A92a8f383D69dA2142a969B93DE7" |
| } |
| EOA (taiko:0x0000000000000000000000000000000000000000) { | |
| +++ description: None | |
| receivedPermissions: | |
| - | [{"permission":"interact","from":"taiko:0x18B27428cce679DFf84D09D6b07DF1E9EBb6fE28","description":"pause and unpause proofs and verification.","role":".owner"}] |
| } |
| contract SignalService (taiko:0x1670000000000000000000000000000000000005) { | |
| +++ description: Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications to prove that a specific L2 signal or state transition occurred via Merkle proofs. | |
| name: | |
| - | "SignalServiceForkRouter" |
| + | "SignalService" |
| template: | |
| - | "taiko/SignalServiceForkRouter" |
| + | "taiko/SignalService" |
| sourceHashes.1: | |
| - | "0x48d2edc5c332edbe5587795ecd9c72063d865a58d79f71e4fc30e28e91e88c50" |
| + | "0x9da4ee2d38b5914e0408dd1d413eef87e7f2ae62c6ca8240e657f4cc8cfaa84c" |
| description: | |
| - | "Routes to the Shasta SignalService post shasta fork." |
| + | "Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications to prove that a specific L2 signal or state transition occurred via Merkle proofs." |
| values.$implementation: | |
| - | "taiko:0x2987F6Bef39b03F8522EC38B36aF0f7422938EAb" |
| + | "taiko:0x18B27428cce679DFf84D09D6b07DF1E9EBb6fE28" |
| values.$pastUpgrades.2: | |
| + | ["2026-04-30T15:37:12.000Z","0xb09a7ea021566fa65e0891d3f45b369f61b639c6ef9b16b0d2a3bd52289bf3de",["taiko:0x18B27428cce679DFf84D09D6b07DF1E9EBb6fE28"]] |
| values.$upgradeCount: | |
| - | 2 |
| + | 3 |
| values.newFork: | |
| - | "taiko:0x18B27428cce679DFf84D09D6b07DF1E9EBb6fE28" |
| values.oldFork: | |
| - | "taiko:0xaea51c413Bd15bBee72737C8094BE942B5208762" |
| values.shastaForkTimestamp: | |
| - | 1775135700 |
| values.impl: | |
| + | "taiko:0x18B27428cce679DFf84D09D6b07DF1E9EBb6fE28" |
| values.inNonReentrant: | |
| + | false |
| values.paused: | |
| + | false |
| values.resolver: | |
| + | "taiko:0x0000000000000000000000000000000000000000" |
| implementationNames.taiko:0x2987F6Bef39b03F8522EC38B36aF0f7422938EAb: | |
| - | "SignalServiceForkRouter" |
| implementationNames.taiko:0x18B27428cce679DFf84D09D6b07DF1E9EBb6fE28: | |
| + | "SignalService" |
| category: | |
| - | {"name":"Spam","priority":-1} |
| } |
| contract Anchor (taiko:0x1670000000000000000000000000000000010001) { | |
| +++ description: Immutable L2 contract that anchors L1 block details to L2 for cross-layer communication and manages EIP-1559 gas pricing for L2 operations. | |
| name: | |
| - | "AnchorForkRouter" |
| + | "Anchor" |
| template: | |
| - | "taiko/AnchorForkRouter" |
| + | "taiko/Anchor" |
| sourceHashes.1: | |
| - | "0x457bd8a81361da7cd33cf0749e16158c846ae643a1a69451a84aaac7f62cc16b" |
| + | "0xd28d4f02b54957df5dd4894f6b101e59efaea4c568ce8ea8f87870f81cd977f1" |
| description: | |
| - | "Routes to the Shasta Anchor contract post shasta fork." |
| + | "Immutable L2 contract that anchors L1 block details to L2 for cross-layer communication and manages EIP-1559 gas pricing for L2 operations." |
| values.$implementation: | |
| - | "taiko:0x38e4A497aD70aa0581BAc29747b0Ea7a53258585" |
| + | "taiko:0x7e83Af941FDcf90EB44ED7dc8754a201B156E0BA" |
| values.$pastUpgrades.6: | |
| + | ["2026-04-30T15:37:12.000Z","0xb09a7ea021566fa65e0891d3f45b369f61b639c6ef9b16b0d2a3bd52289bf3de",["taiko:0x7e83Af941FDcf90EB44ED7dc8754a201B156E0BA"]] |
| values.$upgradeCount: | |
| - | 6 |
| + | 7 |
| values.newFork: | |
| - | "taiko:0x7e83Af941FDcf90EB44ED7dc8754a201B156E0BA" |
| values.oldFork: | |
| - | "taiko:0xE6d1efcC6AC8969474308C99a3805c332D33a1E0" |
| values.ANCHOR_GAS_LIMIT: | |
| + | 1000000 |
| values.checkpointStore: | |
| + | "taiko:0x1670000000000000000000000000000000000005" |
| values.getBlockState: | |
| + | {"anchorBlockNumber":25027058,"ancestorsHash":"0x49a7e51364da6ffb3d3bfd3469fa64d0adce9ee57c8bdb658ca014229605b199"} |
| values.GOLDEN_TOUCH_ADDRESS: | |
| + | "taiko:0x0000777735367b36bC9B61C50022d9D0700dB4Ec" |
| values.impl: | |
| + | "taiko:0x7e83Af941FDcf90EB44ED7dc8754a201B156E0BA" |
| values.inNonReentrant: | |
| + | false |
| values.l1ChainId: | |
| + | 1 |
| values.paused: | |
| + | false |
| values.resolver: | |
| + | "taiko:0x0000000000000000000000000000000000000000" |
| implementationNames.taiko:0x38e4A497aD70aa0581BAc29747b0Ea7a53258585: | |
| - | "AnchorForkRouter" |
| implementationNames.taiko:0x7e83Af941FDcf90EB44ED7dc8754a201B156E0BA: | |
| + | "Anchor" |
| category.name: | |
| - | "Spam" |
| + | "Local Infrastructure" |
| category.priority: | |
| - | -1 |
| + | 5 |
| } |
| - | Status: DELETED |
| contract SignalService (taiko:0x18B27428cce679DFf84D09D6b07DF1E9EBb6fE28) | |
| +++ description: Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications to prove that a specific L2 signal or state transition occurred via Merkle proofs. |
| - | Status: DELETED |
| contract Anchor (taiko:0x7e83Af941FDcf90EB44ED7dc8754a201B156E0BA) | |
| +++ description: Immutable L2 contract that anchors L1 block details to L2 for cross-layer communication and manages EIP-1559 gas pricing for L2 operations. |
| contract DelegateController (taiko:0xfA06E15B8b4c5BF3FC5d9cfD083d45c53Cbe8C7C) { | |
| +++ description: Middleware contract that maintains ownership of DAO-controlled assets and contracts. Its token weight does not count towards the DAO quorum. | |
| directlyReceivedPermissions.1: | |
| + | {"permission":"interact","from":"taiko:0x1670000000000000000000000000000000000005","description":"pause and unpause proofs and verification.","role":".owner"} |
| } |
| + | Status: CREATED |
| contract Safe (eth:0xF28C8D6b44361255FA7C116d09ccD5F914398C10) | |
| +++ description: None |
The system uses a whitelist-based sequencing mechanism to allow for fast preconfirmations on the L2. On the L1, whitelisted preconfirmers can propose Taiko L2 data to the MainnetInbox contract.
The whitelist is managed by the PreconfWhitelist contract, which currently has 3 active operators registered.
Forced inclusions become mandatory after 9m 36s and proposing becomes permissionless after 1d 1h if the queue is still ignored.
Proving is controlled separately by ProverWhitelist, which currently has 2 whitelisted provers.
Non-whitelisted actors must wait 5d after an unproven proposal before the whitelist is dropped. MainnetInbox currently sets minBond=0 and livenessBond=0.
Currently, proving a proposal requires SGX (Geth), plus either SGX (Reth), SP1, or RISC0.
MEV can be extracted if the operator exploits their centralized position and frontruns user transactions.
Users can submit a blob reference containing a standalone transaction by calling the saveForcedInclusion() function on the MainnetInbox contract.
Once any forced inclusion has been queued for 9m 36s, whitelisted proposers cannot submit new proposals unless they process all due forced inclusions.
If the oldest queued forced inclusion is still ignored for 1d 1h, proposing becomes permissionless and anyone can include it.

A Multisig with 7/9 threshold. A signer list for storing multisig members and their agents, stores the addresses of the Multisigs that use this signer list. Each signer delegates their permissions to their agent address that they can configure here.
A Multisig with 4/6 threshold.
A Multisig with 3/5 threshold.
A Multisig with 2/3 threshold.
A Multisig with 1/2 threshold. Member of Taiko Foundation Treasury Multisig, Taiko Multisig, Gustavo Gonzalez Taiko.
Member of Halborn, SignerList (Security Council).
Member of Gattaca.
Member of SignerList (Security Council), Toni Wahrstätter.
Member of Halborn.
Member of SignerList (Security Council), Gattaca.
Member of Toni Wahrstätter.


Gating router contract to verify batches using RISC Zero.
The core Layer 1 entrypoint for the Taiko rollup where L2 block batches are proposed and their corresponding state transitions are proven. It manages bonds, validates batch parameters, and acts as the state machine for the L2.
Gating router contract to verify batches using SP1.
Enforces the Taiko Multiprover policy and routes to the downstream router contracts.
Defines the whitelist of addresses allowed to prove proposals. Non-whitelisted provers must wait for the permissionless proving delay before they can submit proofs.
Shared vault for Taiko chains for bridged ERC20 tokens.
Middleware contract that maintains ownership of DAO-controlled assets and contracts. Its token weight does not count towards the DAO quorum. Member of Taiko Foundation Treasury Multisig.
The main contract and entrypoint of the Aragon-based DAO governance framework. Fine-grained DAO permissions, proposals, voting and thresholds are configured here.
Middleware contract that maintains ownership of DAO-controlled assets and contracts. Its token weight does not count towards the DAO quorum.
Verifier contract for SGX proven blocks.
A timelock with access control. The current minimum delay is 3d.
Contract managing SGX attestation certificates.
ERC20 contract implementing the TAIKO token. It defines a list of addresses designated as non-voting.
Modular Governance contract allowing for proposing, voting on and executing encrypted proposals (e.g. for Security Council emergency proposals).
Contract managing SGX attestation certificates.
A router proxy that routes to verifiers based on selectors. The mapping can be changed by a permissioned owner (TimelockController).
Defines withdrawal limits per token.
An optimistic governance module. Standard proposals pass and can be executed unless 10% of votable TAIKO veto them within 7d. Emergency proposals can be executed without delay.
Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications like the bridge escrows to prove that a specific L1<->L2 signal or state transition occurred via Merkle proofs.
Verifier contract for SGX proven blocks.
Shared bridge escrow for Taiko chains for bridged ETH.
Modular Governance contract allowing for proposing, voting on and executing proposals (e.g. for Security Council standard proposals).
Maps contract names to contract addresses. Changes in this mapping effectively act as contract upgrades.
Contains the whitelist of addresses allowed to propose batches on L1 and issue preconfirmations. It dynamically selects a single operator for a given epoch using the Ethereum beacon block root as a source of randomness.
Middleware contract that can maintain ownership of DAO-controlled assets and contracts. It can only be invoked by the TaikoDAOController on L1 through the L2 bridge.
Bridge escrow holding preminted ETH on Taiko.
Escrow for L2-native tokens sent to L1 via the canonical bridge.
Facilitates secure cross-chain message passing by storing signals (messages) and state root checkpoints. It allows applications like the bridge escrows to prove that a specific L1<->L2 signal or state transition occurred via Merkle proofs.
Maps contract names to contract addresses. Changes in this mapping effectively act as contract upgrades.
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).