Bip39 Github. A mnemonic phrase, mnemonic recovery phrase or bitcoin seed can be a list of words which store all the knowledge required to recover a bitcoin wallet. A wallet will generally create a mnemonic backup phrase and instruct the user to put in writing it down on paper. BIP39 https://thebookmarkking.com/story19477005/bip39-passphrase-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained