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. Unfinished opBNB withdrawal

   $484 · 1 position

   You withdrew from opBNB to BNB Smart Chain but the proof or final step never happened there. Anyone can finish it; funds go to you.

   1. Open the bridge page and connect the wallet that made the withdrawal.
   2. Find the withdrawal in your history and press Prove.
   3. Wait out the challenge period (the page shows the time left).
   4. Press Finalize. You pay the network gas fee. The funds go to your address.

   Official bridges for the chains your positions are on:

   • opBNB Bridge (opens in a new tab)

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

2. K2 (Karak) chain balance

   $25 · 1 positionNeeds the team

   The K2 team's bridge on Ethereum now pays balances by Merkle proof (a list that proves your balance). The merkle root is set and claims are not paused. After 2027-09-12 the guardian can sweep what is left.

   1. Ask the K2 team for your Merkle proof. We could not find an official page that gives proofs.
   2. On the OptimismPortal 0xeeCE9CD7Abd1CC84d9dfc7493e7e68079E47eA73 call claimETH(_amount, _proof) for ETH.
   3. For tokens, call claimTokens(_tokens, _amounts, _proof) on the L1StandardBridge 0xBA61F25dd9f2d5f02D01B1C2c1c5F0B14c4B48A3.

   K2 OptimismPortal on Etherscan (opens in a new tab)

3. USDC burned but not minted

   Circle CCTP

   $3 · 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. Prisma Finance leftover funds

   $0 · 1 position

   Prisma was exploited in 2024 and wound down. You may have collateral left over after a redemption, Stability Pool gains or deposits, or other claimable funds. They are still in the contracts.

   1. Read the wind-down guide linked below to see which pot your row is in.
   2. Leftover collateral: on the Trove Manager contract in your row, Write tab, call claimCollateral(receiver) from your wallet.
   3. Stability Pool 0xed8b26d99834540c5013701bb3715fafd39993ba: call withdrawFromSP(0), then claimCollateralGains(recipient, collateralIndexes). Deposits: withdrawFromSP(amount).

   mkUSD Stability Pool (opens in a new tab)