Bip39 Passphrase. A mnemonic phrase, mnemonic recovery phrase or bitcoin seed is often a list of words which store all the information needed to recover a bitcoin wallet. A wallet will commonly crank out a mnemonic backup phrase and instruct the user to write down it down on paper. BIP39 https://bookmarkingquest.com/story18792575/bip39-wallets-https-linktr-ee-bip39-the-best-side-of-bip39