Bip39 Passphrase. Now, at the next stage we use these acquiring and alter important bunch to create personal personal keys. Use the above mentioned generate private keys and chain code and move them to the above mentioned stated functionality kchild = kpar + hash(Kpar, cpar, i) to deliver individual keys. https://bookmarkangaroo.com/story19097880/bip39-words-https-linktr-ee-bip39-bip-39-no-further-a-mystery