Bip39 Standard. The passphrase is just not chosen with the predefined list of 2048 words – it might be any word or phrase you choose. BIP39 specifies a list of 2048 words from which the mnemonic phrase is selected. Each word signifies a variety inside of a binary sequence, and https://bookmarksoflife.com/story4313962/bip39-wallets-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described