Public Chains
The following is a comprehensive list of all of the currently live Arbitrum chains:
| Name | RPC Url(s) | ID | Native Currency | Explorer(s) | Underlying L1 | Current Tech Stack | Sequencer Feed | Nitro Seed Database URLs |
|---|---|---|---|---|---|---|---|---|
| Arbitrum One | https://arb1.arbitrum.io/rpc https://arbitrum-mainnet.infura.io/v3/YOUR-PROJECT-ID https://arb-mainnet.g.alchemy.com/v2/-KEY | 42161 | ETH | https://arbiscan.io/ https://explorer.arbitrum.io/ | Ethereum | Nitro Rollup (8/31) | wss://arb1.arbitrum.io/feed | snapshot.arbitrum.io/mainnet/nitro.tar |
| Arbitrum Nova | https://nova.arbitrum.io/rpc | 42170 | ETH | https://nova.arbiscan.io/ https://nova-explorer.arbitrum.io/ | Ethereum | Nitro AnyTrust | wss://nova.arbitrum.io/feed | N/A |
| Nitro Goerli Rollup Testnet^ | https://goerli-rollup.arbitrum.io/rpc | 421613 | GoerliETH | https://goerli.arbiscan.io https://goerli-rollup-explorer.arbitrum.io | Goerli | Nitro Rollup | wss://goerli-rollup.arbitrum.io/feed | N/A |
^ Testnet
All chains use bridge.arbitrum.io/ for bridging assets and retryable-dashboard.arbitrum.io for executing retryable tickets if needed.
For a list of useful contract addresses, see here.
Arbitrum Chains Summary
Arbitrum One: Arbitrum One is the flagship Arbitrum mainnet chain; it is an Optimistic Rollup chain running on top of Ethereum Mainnet, and is open to all users. In an upgrade on 8/31, the Arbitrum One chain is/was upgraded to use the Nitro tech stack, maintaining the same state.
Arbitrum Nova: Arbitrum Nova is the first mainnet AnyTrust chain. The following are the members of the 6-of-7 data availability committee (DAC):
- Consensys
- Google Cloud
- Offchain Labs (2 keys)
- P2P
- Quicknode
Nitro Goerli Rollup Testnet: This testnet (421613) uses the Nitro rollup tech stack; it is expected to be the primary, stable Arbitrum testnet moving forward.
RinkArby: Deprecated 12/20/22
You can use third party node providers to interact with any of the Arbitrum chains listed above, see the full list here.