Arbitrum to Base L2 handoff
This route crosses two L2 execution environments. Arbitrum settles to ethereum, while Base settles to ethereum; each side keeps its own gas balance, token contracts, transaction hash, and settlement progress.
Bridge Arbitrum to Base
FromArbitrum
ToBase
ENTER AMOUNTUSDC / ARBITRUM -> USDC / BASE
Squatch Guard
Before a deposit order moves forward, Squatch Guard checks the amount, asset, network, and active quote window against the order details.Direction
Arbitrum → Base
Asset
USDC
Source gas
ETH
Destination gas
ETH
How the Sasquatch deposit route works
1. Select the source
Choose the USDC asset and Arbitrum network you currently hold.
2. Review the route
Check the estimated output, fees, timing, and Base destination network.
3. Create the order
Open the live route and follow the exact deposit instructions.
4. Track delivery
Use the receipt and status page until the destination funds arrive.
What you need to know
Arbitrum deposit-side execution
Arbitrum is a L2 EVM network in the Ethereum ecosystem. ETH pays source-side network gas on Arbitrum. EVM 0x account address On an Arbitrum source, the Nitro sequencer records L2 execution before Ethereum settlement completes; ETH funds gas and ERC-20 inputs can need approval.
Select a Base-compatible output
EVM 0x account address ETH is the native gas asset for Base. The quote identifies whether the delivered asset is native, contract-based, or bridged.
Base receipt-side execution
Base is a L2 EVM network in the Ethereum ecosystem. ETH pays destination-side network gas on Base. EVM 0x account address A Base receipt belongs to the Base L2 balance and token contract, not Ethereum L1; later activity needs ETH specifically on Base.
Arbitrum to Base bridge mistakes
Route-specific mistakes include sending on a network other than Arbitrum; using a destination that is not valid for Base; running out of ETH before the source transaction is submitted. On an Arbitrum source, the Nitro sequencer records L2 execution before Ethereum settlement completes; ETH funds gas and ERC-20 inputs can need approval. A Base receipt belongs to the Base L2 balance and token contract, not Ethereum L1; later activity needs ETH specifically on Base.
Private Route for USDC → USDC
Arbitrum wallet, token-transfer, contract, log, and gas activity remain public, and Base wallet, token-transfer, contract, log, and gas activity remain public. For this USDC on Arbitrum to USDC on Base path, Private Route is intended to reduce the direct visible relationship between activity around the source-side EVM 0x account address and destination-side EVM 0x account address; it does not hide either chain's public records.
- ✓Reduces the obvious link between the USDC deposit and USDC receipt
- ✓Compare standard and Private Route options for Arbitrum → Base
- ✓Shows what remains public on Arbitrum and Base before you deposit
Related routes
Private Arbitrum to Base route explainerPrivacy limits and live availabilityNo-KYC and verification rulesProvider and region requirementsCan a bridge link source and destination wallets?FAQ answerWhat is cross-chain privacy?FAQ answerWhat is a private crypto swap?FAQ answerCan bridge transactions be traced?Privacy researchPrivate bridge security checklistPrivacy researchHow cross-chain transactions are trackedPrivacy research
Arbitrum to Base FAQs
Which asset can travel from Arbitrum to Base?
The live route lists assets supported in this direction. Confirm that the selected source representation has an explicit Base output before depositing.
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. A Base receipt belongs to the Base L2 balance and token contract, not Ethereum L1; later activity needs ETH specifically on Base. 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 Base can prevent normal detection or receipt.
Can I bridge USDC from Arbitrum to Base without KYC?
Requirements are checked for the live USDC Arbitrum to Base 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.