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Arbitrum One

A leading Ethereum layer 2 with deep DeFi liquidity.

Symbol
ETH (18 decimals)
Family
EVM
Chain ID
42161
Address format
Same 0x + 40 hex format as Ethereum.
Example
0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
Block explorer
arbiscan.io
Public RPC
https://arb1.arbitrum.io/rpc
Developer docs
docs.arbitrum.io
Live lookups
Supported

Same address, many chains

An EVM address is just a public key hash, so the same 0x… string exists on every EVM chain. Nothing in the address says which network it was meant for - sending on the wrong one can strand funds. Use the wrong-chain guard before you send.

Try it for Arbitrum One

Paste an address in the guard or call the API:

curl "https://useanychain.com/api/v1/guard?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&chain=arbitrum"
curl "https://useanychain.com/api/v1/chains/arbitrum"

Same family