Chain profile

Arbitrum One mainnet settings

Arbitrum One is an Ethereum L2. Arbitrum documentation lists the public RPC URL, chain ID 42161, and Arbiscan/Blockscout explorers.

Chain ID 42161
Gas token ETH
Verification Verified metadata
Checked April 30, 2026

Network endpoints

Primary public RPC
https://arb1.arbitrum.io/rpc
Explorer
https://arbiscan.io
Source documentation
Arbitrum docs
Chain type
Optimistic L2 mainnet
Review cadence
monthly; next review after May 30, 2026

Source links

Safety note

Compare bridge routes, withdrawal timing, and finality assumptions before moving large balances across rollups.

Main.net is an independent reference site. It does not operate this chain, custody assets, execute transactions, or provide investment advice.

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