On-Chain System

Mantle Network's on-chain module contains a series of smart contracts that run on the blockchain to ensure decentralized and reliable execution. These contracts are responsible for handling the logic of various dApps interacting with the blockchain, as well as the interaction of the off-chain system with the on-chain system, including asset transfers, asset swaps, and so on.

Key L1 Smart Contracts

Mainnet

Contract	Address	Upgradeable	Owner Role
L1CrossDomainMessenger	0xb8DE82551fA4BA3bE4B3d9097763EDBeED541308	✅	-
L1StandardBridge	0xb4133552BA49dFb60DA6eb5cA0102d0f94ce071f	✅	-
L1ERC721Bridge	0x2cc62eCBb6C99eb687ACc079cE367eaFEC007222	✅	-
L1ERC721BridgeProxy	0xCAF8938b6C4A27a96AaAfbb7228Fd613D40EA70a	✅	-
L2OutputOracle	0xD1230865641561653406906Fb08873F011c19080	✅	-
L2OutputOracleProxy	0x31d543e7BE1dA6eFDc2206Ef7822879045B9f481	✅	-
OptimismMintableERC20Factory	0xB5F4eE05fFFB85Ba03FEde089F75E63A9a55dDF0	✅	-
OptimismMintableERC20FactoryProxy	0x3b96c878cc334a7d9EA994Ec4B6C28BdDde00Eb2	✅	-
OptimismPortal	0xe1399f54ba2597b4EaDA9E3450c34D393fb131A7	✅	-
OptimismPortalProxy	0xc54cb22944F2bE476E02dECfCD7e3E7d3e15A8Fb	✅	-
ProxyAdmin	0xca35F8338054739D138884685e08b39EE2217794	✅	Mantle Security Msig
Proxy__BVM_L1CrossDomainMessenger	0x676A795fe6E43C17c668de16730c3F690FEB7120	✅	-
Proxy__BVM_L1StandardBridge	0x95fC37A27a2f68e3A647CDc081F0A89bb47c3012	✅	-
SystemConfig	0x6Dbb7D9C5dC60844B8CF442ddC6Be081c060B2E3	✅	-
SystemConfigProxy	0x427Ea0710FA5252057F0D88274f7aeb308386cAf	✅	-

Testnet (Sepolia)

Contract	Address	Upgradeable	Owner Role
L1CrossDomainMessenger	0x536beD6283500BF93BA4428c18a7A629425a5c7e	✅	-
L1StandardBridge	0xf26e9932106E6477a4Ae15dA0eDDCdB985065a1a	✅	-
L1ERC721Bridge	0x784ed5141985b6c7254B89b95CEcE6F8d0a36aa5	✅	-
L1ERC721BridgeProxy	0x3938D52ba5B26c710512a75bC7907f2C01b2269f	✅	-
L2OutputOracle	0x658Fd092aAA8dDCfAA3F029f554d53DF0F1A835d	✅	-
L2OutputOracleProxy	0x4121dc8e48Bc6196795eb4867772A5e259fecE07	✅	-
OptimismMintableERC20Factory	0xFfBDeE9f73D1A4971B07d3aa4f2816F59F0AEF7a	✅	-
OptimismMintableERC20FactoryProxy	0x247704aDA40aeB8aEbC3e8B17A2DC49fDb28D061	✅	-
OptimismPortal	0x0e477cC5fCe55825Ac5654534683F07Ff5727D5e	✅	-
OptimismPortalProxy	0xB3db4bd5bc225930eD674494F9A4F6a11B8EFBc8	✅	-
ProxyAdmin	0x2EFAE081b4DC3D7D31aeDf865c1C39599C7eEcac	✅	Mantle Security Msig
Proxy__BVM_L1CrossDomainMessenger	0x37dAC5312e31Adb8BB0802Fc72Ca84DA5cDfcb4c	✅	-
Proxy__BVM_L1StandardBridge	0x21F308067241B2028503c07bd7cB3751FFab0Fb2	✅	-
SystemConfig	0xA74a15882e48450fdc7585fbb53eda329B693b97	✅	-
SystemConfigProxy	0x04B34526C91424e955D13C7226Bc4385e57E6706	✅	-

Introduction

L1CrossDomainMessenger

High-level interface for sending messages to and receiving messages from Mantle Network (from L1 to L2).

L1StandardBridge

Standardized contract for transferring ERC20 tokens to/from Mantle Network

L1ERC721Bridge / L1ERC721BridgeProxy

Standardized contract or proxy contract for transferring ERC721 tokens to/from Mantle Network.

L2OutputOracle / L2OutputOracleProxy

Stores commitments to the state of Mantle Network, which can be used by contracts on L1 to access the L2 state

OptimismMintableERC20Factory / OptimismMintableERC20FactoryProxy

Factory contract or proxy factory contract for minting ERC20 tokens.

OptimismPortal / OptimismPortalProxy

Low-level message-passing interface.

ProxyAdmin

Admin contract for the contracts, is the owner of all the proxy contracts. It can be used to upgrade the most system contracts in Mantle.

Proxy__BVM_L1CrossDomainMessenger

This contract is a proxy for the L1CrossDomainMessenger contract on the L2, which can be used to the interaction with the L2 contract from L1.

Proxy__BVM_L1StandardBridge

This contract is a proxy for the L1StandardBridge contract on the L2, which can be used to the interaction with the L2 bridge from L1.

SystemConfig / SystemConfigProxy

This is a system contract that stores the configuration values for the on-chain system.