Smart contract addresses
The following information may be useful to those building on Arbitrum. We list the addresses of the smart contracts related to the protocol, the token bridge and precompiles of the different Arbitrum chains.
Protocol smart contracts
Core contracts
The following contracts are deployed on Ethereum (L1)
| Arbitrum One | Arbitrum Nova | Arbitrum Sepolia | |
|---|---|---|---|
| Rollup | 0x4DCe...Cfc0 | 0xE7E8...B7Bd | 0x042B...0Cf4 |
| Sequencer Inbox | 0x1c47...82B6 | 0x211E...c21b | 0x6c97...be0D |
| CoreProxyAdmin | 0x5547...2dbD | 0x71D7...7148 | 0x1ed7...0686 |
Cross-chain messaging contracts
The following contracts are deployed on Ethereum (L1)
| Arbitrum One | Arbitrum Nova | Arbitrum Sepolia | |
|---|---|---|---|
| Delayed Inbox | 0x4Dbd...AB3f | 0xc444...3949 | 0xaAe2...ae21 |
| Bridge | 0x8315...ed3a | 0xC1Eb...76Bd | 0x38f9...33a9 |
| Outbox | 0x0B98...4840 | 0xD4B8...cc58 | 0x65f0...B78F |
| Classic Outbox*** | 0x7607...1A40 0x667e...337a |
***Migrated Network Only
Fraud proof contracts
The following contracts are deployed on Ethereum (L1)
| Arbitrum One | Arbitrum Nova | Arbitrum Sepolia | |
|---|---|---|---|
| ChallengeManager | 0xA556...9fB0 | 0xFE66...A688 | 0xC60b...8B4C |
| OneStepProver0 | 0x35FB...F731 | 0x35FB...F731 | 0x3Fe7...1377 |
| OneStepProverMemory | 0xe0ba...C48b | 0xe0ba...C48b | 0x6268...ec2d |
| OneStepProverMath | 0xaB95...F921 | 0xaB95...F921 | 0x42f5...e8Fa |
| OneStepProverHostIo | 0xa07c...71Cf | 0xa07c...71Cf | 0xdB2c...C165 |
| OneStepProofEntry | 0x4397...42d6 | 0x4397...42d6 | 0xB9cf...AE80 |