Bip39 Standard. Now, at the next degree we use these getting and change key bunch to make person private keys. Use the above crank out private keys and chain code and go them to the above outlined functionality kchild = kpar + hash(Kpar, cpar, i) to produce individual keys. Just https://agency-social.com/story4112369/bip39-passphrase-https-linktr-ee-bip39-top-guidelines-of-bip39-words