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Bridge Arbitrum ETH

Arb Canonical ETH deposits native ETH from Ethereum into Arbitrum-stack chains through each chain's canonical Delayed Inbox, using Arbitrum's retryable-ticket mechanism - the same path Arbitrum's own bridge UI uses. No CCIP fee, no wrapping.

Deposits only

This rail only moves ETH from Ethereum into Arbitrum One or Robinhood Chain. There is no withdrawal path yet. Arbitrum One → Ethereum ETH still works via CCIP (the WETH lane). Robinhood Chain → Ethereum native ETH has no SkyBridge path yet.

Supported chains​

Ethereum → Arbitrum One · Ethereum → Robinhood Chain

Only native ETH is supported on this rail. ERC-20s (including WETH) continue to bridge via CCIP, and native USDC via CCTP.

What you need​

  • Native ETH in your wallet on Ethereum
  • Enough ETH to cover the flat EntryPoint fee, the L2 gas funds, and the retryable submission cost (the app quotes the total before you confirm)

Step-by-step​

1. Connect your wallet​

  1. Open the SkyBridge app.
  2. Click Connect and complete the wallet connection.

2. Select Ethereum as source​

  1. Set the source chain to Ethereum and the destination to Arbitrum One or Robinhood Chain.
  2. Select ETH as the token.
  3. The app offers Arb Canonical as the route - on the Ethereum → Arbitrum One lane it's preferred over CCIP because it's cheaper and delivers native ETH directly.

3. Enter the amount​

The interface shows the flat EntryPoint fee, the estimated L2 gas funds and submission cost, and the amount you'll receive on the destination.

4. Confirm and bridge​

  1. Review the transfer details and click Bridge.
  2. Sign the transaction in your wallet. The transaction's value covers the deposit amount, the flat fee, the retryable submission cost, and the L2 gas funds, in one exact payment.

5. Track your transfer​

Deposits typically arrive within ~10-15 minutes - the time for the retryable ticket to be picked up and auto-redeemed on the destination chain. Check the Activity panel for status; there are no intermediate proving or finalization steps like the OP Standard Bridge's withdrawal path.

Notes​

  • This rail does not support ERC-20s or NFTs - use CCIP for those, even on Arbitrum One or Robinhood Chain.
  • Any leftover L2 gas funds beyond what the retryable ticket actually consumes are refunded automatically on the destination chain, to your own address - not swept by the protocol.
  • If bridging to Robinhood Chain, remember there is currently no way to bridge that ETH back to Ethereum through SkyBridge.

Troubleshooting​

  • Transfer stuck in "pending" past 15 minutes: the retryable ticket may have failed to auto-redeem (for example, if L2 gas prices spiked between quote and inclusion). It remains redeemable for up to 7 days; contact support on Discord if you need help redeeming it manually.
  • ETH not showing on destination: confirm you've added the destination chain to your wallet and switched to it.