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 old Ethereum contracts (2015-2021)

   $1,500 · 1 position

   You have a balance in an old Ethereum contract (The DAO, EtherDelta, IDEX, the 2017 ENS registrar, DigixDAO and others). Each contract has its own withdraw call. Use the wallet that owns the position.

   1. The DAO: on the DAO token 0xbb9bc244d798123fde783fcc1c72d3bb8c189413 call approve(0xbf4ed7b27f1d666546e30d74d50d173d20bca754, yourBalance). Then call withdraw() on the WithdrawDAO contract 0xbf4ed7b27f1d666546e30d74d50d173d20bca754. It pays 1 ETH per 100 DAO.
   2. EtherDelta 0x8d12a197cb00d4747a1fe03395095ce2a5cc6819: from the wallet that deposited, call withdraw(amount) for ETH or withdrawToken(token, amount) for a token. Amounts are in the token's smallest unit.
   3. IDEX v1 0x2a0c0dbecc7e4d658f48e01e3fa353f44050c208: call withdraw(token, amount). Use token 0x0000000000000000000000000000000000000000 for ETH. It reverts if your last IDEX activity was fewer than 240 blocks ago.
   4. 2017 ENS registrar 0x6090a6e47849629b7245dfa1ca21d94cd15878ef: call releaseDeed(labelhash) for the name. The labelhash is keccak256 of the name without .eth. The deposit goes back to the deed owner.
   5. Other contracts (DigixDAO, Neufund and more): use the contract's own withdraw or refund function on Etherscan from the owner wallet. Check the contract's code first.

   WithdrawDAO contract (The DAO) (opens in a new tab)Official docs (opens in a new tab)

2. Unclaimed OP Mainnet or Base withdrawal

   Optimism, Base

   $1,073 · 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. Old Maker SCD vault collateral

   $665 · 1 position

   You own an old single-collateral Dai vault (CDP) that still has collateral (PETH) left after the system was shut down.

   1. Open the Tub contract 0x448a5065aeBB8E423F0896E6c5D525C040f59af3 on Etherscan, Write tab.
   2. If the vault still has debt, anyone can call bite(cupId) first. Then the vault owner calls free(cup, ink) to get PETH.
   3. Call exit(wad) to swap PETH for WETH. If a DSProxy owns the vault, send these calls through the proxy.

   Tub contract on Etherscan (opens in a new tab)

4. Old Polygon Plasma bridge exit

   $59 · 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)