Bip39 Vs Slip39. The passphrase is not really picked within the predefined list of 2048 words – it could be any word or phrase you end up picking. BIP39 is a design implementation that lays out how copyright wallets produce the list of words (or "mnemonic codes") that make up https://thesocialcircles.com/story4332730/bip39-word-list-pdf-https-linktr-ee-bip39-about-ian-coleman-bip39