Bip39 Seed. Now, at the following level we use these acquiring and change vital bunch to create unique personal keys. Use the above mentioned generate personal keys and chain code and go them to the above pointed out function kchild = kpar + hash(Kpar, cpar, i) to create unique keys. https://bookmarkshq.com/story20139585/bip39-words-https-linktr-ee-bip39-the-fact-about-bip39-words-that-no-one-is-suggesting