Bip39 Checksum. A BIP39 mnemonic sentence is usually a list of words (most commonly twelve or 24) that we could communicate with a lot more effectively than other people that aren't words (bits and numbers as well as the like). BIP39's purpose in introducing the usage of mnemonic words is https://defaultdirectory.com/listings13082581/bip39-mnemonic-https-linktr-ee-bip39-bip39-passphrase-generator-fundamentals-explained