Bip39 Ian Coleman. A mnemonic phrase, mnemonic recovery phrase or bitcoin seed is really a list of words which keep all the data required to recover a bitcoin wallet. A wallet will usually crank out a mnemonic backup phrase and instruct the person to write down it down on paper. https://wearethelist.com/story20647725/bip39-generator-https-linktr-ee-bip39-the-fact-about-bip39-wallets-that-no-one-is-suggesting