Use only the official links below. No real recovery asks for your seed phrase or private key. If anyone offers to recover funds for you, it is a scam.

1. Unclaimed OP Stack chain withdrawal

   Blast, Mantle, Mode, Zora, Lisk, Ink, Unichain and other OP chains

   $3 · 6 positions

   You withdrew from an OP Stack chain to Ethereum but never completed the last step. The funds wait in that chain's bridge.

   1. Use the official bridge of the chain you withdrew from (linked next to each of your positions).
   2. Connect the receiving wallet and open your transactions. Press Prove, wait out the challenge period shown on the page, then press Finalize.
   3. Pay the Ethereum gas fee each time.

   Official bridges for the chains your positions are on:

   • Cyber bridge page (opens in a new tab)
   • Superbridge Unichain (listed by Unichain docs) (opens in a new tab)

   Official docs (opens in a new tab)

2. Unclaimed OP Mainnet or Base withdrawal

   Optimism, Base

   $2 · 1 position

   You withdrew ETH or tokens from OP Mainnet or Base to Ethereum but never did the last step on Ethereum. The funds wait in the bridge contract.

   1. OP Mainnet: open the Optimism bridge (app.optimism.io/bridge), connect the receiving wallet, open your withdrawal, press Prove, then Finalize after 7 days.
   2. Base: Base's docs list Superbridge and Brid.gg as its bridges. Open one, connect the receiving wallet, find the withdrawal, press Prove, then Finalize.
   3. Base waits 5 days after Prove (1 day if both a TEE proof and a ZK proof back it). Pay the Ethereum gas fee each time.

   Official bridges for the chains your positions are on:

   • Optimism Bridge (opens in a new tab)

   Official docs (opens in a new tab)

3. USDC burned but not minted

   Circle CCTP

   $1 · 1 position

   USDC was burned on one chain through Circle CCTP but the matching USDC was never minted on the destination chain. Circle can still sign it, so it can be completed.

   1. Find the burn transaction hash on the source chain.
   2. Get the signed attestation for it from Circle's attestation API (see the Circle CCTP docs).
   3. On the destination chain, call receiveMessage(message, attestation) on the MessageTransmitter contract. You pay the gas fee. USDC goes to the recipient.

   Circle CCTP docs (opens in a new tab)Official docs (opens in a new tab)

4. Old Polygon Plasma bridge exit

   <$1 · 1 position

   You withdrew from Polygon through the old Plasma bridge and the exit was never finished on Ethereum. Polygon's current docs no longer describe this bridge, so the route is not confirmed.

   1. Open Polygon Portal, connect the wallet that burned the tokens, and check Transactions for your exit.
   2. If Portal shows Initiate Claim or Claim Tokens, follow it and pay the Ethereum gas fee.
   3. If it is not listed, the exit must be run on the Polygon contracts directly. Ask Polygon support, with the burn transaction hash.

   Polygon bridge (opens in a new tab)Official docs (opens in a new tab)