Metis Andromeda

The L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development. Cross Domain Messenger (L1xDM) contract sends messages from L1 to Metis, and relays messages from Metis onto L1. In the event that a message sent from L1 to Metis is rejected for exceeding the Metis epoch gas limitThe maximum amount of gas a transaction or block may consume., it can be resubmitted via this contract’s replay function.

• Roles:
  • admin: Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

The Canonical Transaction Chain (CTC) contract is an append-only log of transactions which must be applied to the OVM state. Given that transactions batch hashes are sent to an EOA address, it allows any account to enqueue() a transaction, which the SequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs. must eventually append to the rollupA blockchain that inherits consensus and data availability from another blockchain called L1. Rollups enable trust minimized bridges with the base layer via proof systems, either optimistic or zero-knowledge. A rollup without a bridge, or without considering the bridge, is called a sovereign rollup. state.

The State Commitment Chain (SCC) stores a list of proposed state rootsA cryptographic hash succinctly representing a state using a Merkle tree. in a linked ChainStorageContainer contract. Only a permissioned state root proposerIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block. (MVM_Proposer) can submit new state roots.

• Roles:
  • admin: Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

Contract acting as an escrow for METIS tokens managed by LockingPool.

• Roles:
  • admin: ProxyAdmin; ultimately Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

Storage container for SCC batches.

Factory contract for creating dispute games. Unlike in standard OP Stack chains, games are not created to propose state rootsA cryptographic hash succinctly representing a state using a Merkle tree.. Instead, games are created on demand by the permissioned GameCreator only should a dispute arise.

• Roles:
  • admin: ProxyAdmin; ultimately Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.
  • gameCreator: EOA 1, Metis Multisig

Contract used to manage configuration of global Metis values.

The FaultProofLockingPool is a contract that allows sequencers to lock their funds for a certain period of time. The contract is used in the Metis protocol to ensure that sequencers have enough funds to cover the potential losses from disputes. It currently has a balance of 0 METIS.

• Roles:
  • admin: ProxyAdmin; ultimately Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

Storage container for CTC batches.

Contract for handling fault disputes (should games be created). Successfully disputed batches are marked as disputed to the StateCommitmentChain.

Main entry point for users depositing ERC20 tokens and ETH that do not require custom gateway.

• Roles:
  • admin: Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

The ProposerIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block. Registry contains the addresses of the current active proposers for the chain.

• Roles:
  • proposer: EOA 3

The Bond Manager contract will handle deposits in the form of an ERC20 token from bonded Proposers. It will also handle the accounting of gasA virtual fuel used to execute smart contracts on a rollup. The EVM (or other VM within the rollup) uses an accounting mechanism to correspond the consumption of gas to the consumption of computing resources, and to limit the consumption of computing resources. costs spent by a VerifierAn entity in a ZK-Rollup, often a smart contract, that verifies zero-knowledge proofs submitted by a prover. during the course of a challenge. In the event of a successful challenge, the faulty ProposerIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block.’s bond will be slashed, and the Verifier’s gas costs will be refunded. Current mock implementation allows only OVM_Proposer to propose new state rootsA cryptographic hash succinctly representing a state using a Merkle tree.. No slashing is implemented.

Oracle for providing preimages.

Oracle specifying user fees for sending L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development. -> Metis messages and other parameters for cross-chain communication.

Container contract for designated sequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs. addresses.

• Roles:
  • admin: Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.
  • blobBatcher: EOA 2

• Roles:
  • owner: Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

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 compatibilityThe degree to which a rollup can make use of existing patterns, code, and tooling from another blockchain or development environment. Today, this typically refers to how well rollups and developers thereon can make use of the Ethereum Virtual Machine, existing smart contracts, and other Ethereum infrastructure. with several older contracts.

• Roles:
  • 1088_MVM_FraudVerifier: Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups. Minority
  • _1088_MVM_Proposer: EOA 3

Metis token contract.

Storage container for CTC queue.

Contract allowing users to lock tokens to apply to become a sequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs., receive rewards, unlock tokens to exit the sequencer, reward distribution.

• Roles:
  • admin: ProxyAdmin; ultimately Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

Delayed wrapped Metis token contract.

• Roles:
  • admin: ProxyAdmin; ultimately Metis Security CouncilA Security Council is a sufficiently decentralized set of members that is able to upgrade a system. A properly set up Security Council consists of at least 8 members with a threshold greater than 75%. What 'sufficiently decentralized' means is fundamentally subjective and L2BEAT evaluates each case individually. A Security Council is allowed to instantly upgrade Stage 1 rollups.

The L2CrossDomainMessenger (L2xDM) contract sends messages from L2Layer 2 (L2) is a category of technical solutions aimed to scale the base layer in a trust minimized way. This category includes solutions like rollups as well as state channels and plasma. Other solutions are able to scale further, but with the introduction of additional trust assumptions, which are therefore not trust minimized. Sometimes the term Layer 2 is used to refer to include these solutions too, like validiums and optimiums, but to distinguish between trust minimized and non trust minimized solutions they are often referred to as "light" L2s, opposed to "strong" L2s like rollups. to L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development., and relays messages from L1 onto L2 with a system tx. In the event that a message sent from L2 to L1 is rejected for exceeding the L1 gas limitThe maximum amount of gas a transaction or block may consume., it can be resubmitted via this contract’s replay function.

The L2StandardBridge contract is the main entry point to deposit or withdraw ERC20 tokens from L2Layer 2 (L2) is a category of technical solutions aimed to scale the base layer in a trust minimized way. This category includes solutions like rollups as well as state channels and plasma. Other solutions are able to scale further, but with the introduction of additional trust assumptions, which are therefore not trust minimized. Sometimes the term Layer 2 is used to refer to include these solutions too, like validiums and optimiums, but to distinguish between trust minimized and non trust minimized solutions they are often referred to as "light" L2s, opposed to "strong" L2s like rollups. to L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development.. This contract can store any token.