Bip39 Checksum. You'd then do a essential recovery having a command such as one particular underneath. (This command uses a sample wallet file bunlded with BTCRecover) And you need to have written it down if you ended up hoping to maintain a choice open to revive your accounts. A BIP39 https://onelifesocial.com/story4141900/bip-39-https-linktr-ee-bip39-a-review-of-bip39-words