Bip39 last word checksum https://sergiouwfc622.fotosdefrases.com/exactly-how-to-generate-a-bip39-seed-a-step-by-step-guide BIP85: A more recent proposal permitting the deterministic derivation of multiple BIP39 mnemonic seeds from a master seed. Press X to abort passphrase application and maintain modifying the passphrase. Deciding on Terminate soon after an abort will halt the method... https://jsbin.com/titaniseko