Bip39 Seed. Now, at the following degree we use these acquiring and change vital bunch to produce unique personal keys. Use the above mentioned produce personal keys and chain code and go them to the above stated function kchild = kpar + hash(Kpar, cpar, i) to crank out personal keys. https://opensocialfactory.com/story19044155/bip39-wallets-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-generator