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)

   $9,555 · 2 positions

   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. Polkadot 2017 sale DOT unclaimed

   Polkadot, Kusama

   $1,786 · 1 positionMay not work

   This Ethereum address bought DOT in the 2017 Polkadot sale, or got KSM in the 2019 Kusama drop, and never claimed it. You need the Ethereum wallet that bought it to sign one message.

   1. Follow the Polkadot wiki claims guide. In Polkadot-JS apps (Polkadot or Kusama), go to Developer > Extrinsics.
   2. Use claims.claim, or claims.claim_attest with the statement text if the row needs it.
   3. Sign the message with the Ethereum wallet that bought (personal_sign) and give a Polkadot account to receive. Part may be vesting-locked.

   Polkadot-JS apps (opens in a new tab)Official docs (opens in a new tab)

3. NU never swapped to T

   Threshold (NU)

   $147 · 1 position

   You hold old NU tokens that were never wrapped into T. The Threshold VendingMachine still does the swap.

   1. Open the NU VendingMachine 0x1CCA7E410eE41739792eA0A24e00349Dd247680e on Etherscan, Write tab, and connect your wallet.
   2. First approve: on the NU token 0x4fe83213d56308330ec302a8bd641f1d0113a4cc call approve(spender = the VendingMachine, amount). Amounts use 18 decimals.
   3. Then call wrap(amount) on the VendingMachine to receive T. Threshold says there is no deadline.

   NU VendingMachine (opens in a new tab)Official docs (opens in a new tab)