Bip39 mnemonic seed phrase https://jsbin.com/titaniseko The last stage of BIP-39 is generating the actual binary seed which is then made use of like a grasp vital in BIP-32 deterministic wallet or making use of other methods. For words that only have 3 letters, there is not any 4th letter. For https://bookmarkstown.com/story20741657/bip39-bitcoin-bip39-passphrase-generator-options-https-linktr-ee-bip39