Bip39 Standard. Now, at the following level we use these receiving and change critical bunch to deliver unique non-public keys. Use the above make personal keys and chain code and move them to the above mentioned talked about function kchild = kpar + hash(Kpar, cpar, i) to produce specific keys. https://single-bookmark.com/story18833394/bip39-words-https-linktr-ee-bip39-bip39-generator-an-overview