What USDC representation leaves Arbitrum?
USDC is a contract representation on Arbitrum at 0xaf88d065e77c8cc2239327c5edb3a432268e5831. ETH, not USDC, pays gas unless both symbols are the same. On an Arbitrum source, the Nitro sequencer records L2 execution before Ethereum settlement completes; ETH funds gas and ERC-20 inputs can need approval. The source wallet sends the exact USDC native or contract representation selected by the route; contract USDC can require approval and the chain’s native gas asset.
What USDC representation arrives on Optimism?
USDC is a contract representation on Optimism at 0x0b2c639c533813f4aa9d7837caf62653d097ff85. ETH, not USDC, pays gas unless both symbols are the same. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. The wallet must support the destination USDC native label or contract. Receipt does not automatically supply the destination network’s gas asset.
Does the same USDC ticker guarantee the same ledger form?
No. This bridge keeps the asset intent while moving between a USDC contract token and a USDC contract token. Match the source and output details in the live quote.
Which gas balances matter for this bridge?
On an Arbitrum source, the Nitro sequencer records L2 execution before Ethereum settlement completes; ETH funds gas and ERC-20 inputs can need approval. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. The bridge output does not automatically fund every later gas need.
What destination address should be used?
EVM 0x account address Do not substitute a Arbitrum address merely because a wallet displays both networks.
What wrong-direction mistake can prevent delivery?
Sending on a network other than Arbitrum, selecting a representation not listed by the quote, or entering an address invalid for Optimism can prevent normal detection or receipt.
Can I bridge USDC from Arbitrum to Optimism without KYC?
Requirements are checked for the live USDC Arbitrum to Optimism quote. Verification requirements can depend on the provider, amount, jurisdiction, and current route. Sasquatch does not verify this route as universally no-KYC; check the live flow before continuing.