Bip39 Seed Phrase. Now, at the next amount we use these receiving and alter vital bunch to produce individual personal keys. Use the above make non-public keys and chain code and pass them to the above mentioned stated function kchild = kpar + hash(Kpar, cpar, i) to make unique keys. https://bookmarkingalpha.com/story18686936/bip39-passphrase-https-linktr-ee-bip39-bip-39-no-further-a-mystery