Bip39 Standard. Now, at another level we use these acquiring and change vital bunch to generate personal private keys. Use the above crank out non-public keys and chain code and pass them to the above talked about operate kchild = kpar + hash(Kpar, cpar, i) to produce particular person keys. https://sparxsocial.com/story10069456/bip-39-https-linktr-ee-bip39-the-fact-about-bip-39-that-no-one-is-suggesting