Bip39 Seed. Now, at the subsequent degree we use these acquiring and change critical bunch to produce unique private keys. Use the above mentioned produce personal keys and chain code and pass them to the above mentioned described operate kchild = kpar + hash(Kpar, cpar, i) to make personal keys. https://sociallweb.com/story4365349/bip39-generator-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained