Bip39. Now, at the following level we use these obtaining and alter critical bunch to make individual private keys. Use the above mentioned make personal keys and chain code and move them to the above mentioned talked about purpose kchild = kpar + hash(Kpar, cpar, i) to deliver unique keys. https://mnobookmarks.com/story19049108/bip39-generator-https-linktr-ee-bip39-the-bip39-wallet-diaries