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. Funds in frozen StarkEx apps

   Sorare, Immutable X, ApeX Pro, edgeX v1, Myria

   $13 · 1 position

   Some StarkEx apps keep balances off-chain. A pending withdrawal can be claimed now. A deposit-only record cannot: the app operator must first publish data.

   1. Check the row type. A pending withdrawal can be claimed now; a deposit ledger row cannot.
   2. For a pending withdrawal, call withdraw with your owner key and asset type on the app's StarkEx contract (Etherscan). Funds go to your registered address.
   3. For a frozen app, the escape hatch needs the operator or data committee to publish state first. See the StarkWare docs.

   Official docs (opens in a new tab)

2. Unclaimed Arbitrum withdrawal

   Arbitrum One, Arbitrum Nova

   $3 · 1 position

   You withdrew ETH or tokens from Arbitrum to Ethereum but never did the final claim on Ethereum. The challenge period (about 6.4 days) is long over, so the funds can be claimed now.

   1. Open the Arbitrum bridge and connect the receiving wallet.
   2. Open Transactions and find the withdrawal marked Claim, or paste the withdrawal transaction hash.
   3. Press Claim and confirm. You pay the Ethereum gas fee. The funds go to the recipient.

   Official bridges for the chains your positions are on:

   • Arbitrum Bridge (opens in a new tab)

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

3. K2 (Karak) chain balance

   $2 · 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)

4. zkSync Lite balance not claimed

   $1 · 1 position

   zkSync Lite was shut down on 2026-05-04. Remaining balances are claimable on Ethereum through a claim contract and a withdrawal portal. Your account is on that list and has not claimed.

   1. Open the zkSync Lite withdrawal portal and connect the wallet that owned the account.
   2. The portal finds your address in the final state, builds the proof and sends the claim. Follow its prompts.
   3. Confirm the Ethereum transaction. Tokens go to your L1 address. Matter Labs sponsors gas for the first 100,000 withdrawals.

   zkSync Lite withdrawal portal (opens in a new tab)Official docs (opens in a new tab)

5. Unclaimed OP Stack chain withdrawal

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

   <$1 · 2 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:

   • Manta Pacific Bridge (opens in a new tab)

   Official docs (opens in a new tab)

6. Archived L2 bridge funds

   Archived L2s

   <$1 · 2 positionsMay not work

   This chain shut down and its state is gone, so no one can prove a withdrawal now. The Ethereum bridge still holds the money; only the chain team can release it.

   1. Use the official bridge of the chain you withdrew from (linked next to each of your positions).
   2. Check that chain's official site for a refund or recovery notice.
   3. Without the chain's final state nobody can prove a withdrawal. Only the chain team can release the bridge funds.

   Official bridges for the chains your positions are on:

   • Redstone balance claim (opens in a new tab)

7. Polygon zkEVM balance

   <$1 · 2 positions

   Polygon zkEVM's sequencer stopped on 1 July 2026. Wallet-held funds not bridged before then can be claimed on Ethereum in a claim UI. Polygon treats unclaimed assets as abandoned after 2027-12-31.

   1. Open the Polygon zkEVM claims site and connect the wallet that held the funds.
   2. Pick your balances and send the claim transaction on Ethereum.
   3. Funds locked inside DeFi contracts are not auto-migrated. Ask Polygon through the forum post.

   Official bridges for the chains your positions are on:

   • Agglayer bridge UI (opens in a new tab)

   zkEVM claims site (opens in a new tab)Official docs (opens in a new tab)

8. Hyphen bridge funds stuck

   Biconomy Hyphen

   <$1 · 1 position

   Hyphen (Biconomy) is no longer supported. Liquidity provider positions may still be withdrawn from the contracts. Transfers that never arrived need the Biconomy team. We could not confirm this from official docs.

   1. If you provided liquidity, call removeLiquidity with your NFT id on the chain's LiquidityProviders contract on Etherscan (Write tab).
   2. For a farming NFT, first call withdraw(nftId, to) on the LiquidityFarming contract.
   3. If you sent a transfer that never arrived, contact Biconomy; only their executors can release it.

9. Unclaimed Orbit chain withdrawal

   Arbitrum Orbit chains (Robinhood, Plume, ApeChain and others)

   $0 · 2 positionsMay not work

   You withdrew from an Arbitrum Orbit chain to its parent chain, but the last step (execute on the parent chain) was never done. The funds are held in the 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, or paste the withdrawal transaction hash.
   3. When the challenge period is over, press Claim. You pay the gas fee on the parent chain.

   Official bridges for the chains your positions are on:

   • AlienX Bridge (opens in a new tab)

   Official docs (opens in a new tab)

10. Unclaimed OP Mainnet or Base withdrawal

    Optimism, Base

    $0 · 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)

11. Ended Sablier stream (no price)

    $0 · 1 position

    An ended or canceled Sablier stream whose token has no known price. Most are airdrop vesting or spam tokens, so the value is unknown and may be zero.

    1. Open the Sablier app and connect the wallet that owns the stream.
    2. Press Withdraw on the ended stream if you want the tokens.
    3. Be careful with unknown tokens: many are spam.

    Sablier app (opens in a new tab)Official docs (opens in a new tab)