Bip39 Standard. Now, at another level we use these obtaining and change vital bunch to crank out specific private keys. Use the above crank out private keys and chain code and pass them to the above mentioned mentioned function kchild = kpar + hash(Kpar, cpar, i) to generate personal keys. https://pageoftoday.com/story4550302/bip39-generator-https-linktr-ee-bip39-bip39-wallet-can-be-fun-for-anyone