Bip39 Mnemonic. Now, at the following level we use these getting and alter vital bunch to make person personal keys. Use the above mentioned deliver private keys and chain code and pass them to the above pointed out purpose kchild = kpar + hash(Kpar, cpar, i) to deliver individual keys. https://thekiwisocial.com/story4501261/ian-coleman-bip39-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase