Bip39 Checksum. You'd then do a simple Restoration using a command such as just one below. (This command utilizes a sample wallet file bunlded with BTCRecover) BIP39 specifies a list of 2048 words from which the mnemonic phrase is preferred. Every single word signifies a number within a binary sequence, https://thebookmarkage.com/story19031164/bip39-words-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy