Bip39 Standard. Now, at the subsequent level we use these receiving and change key bunch to generate personal personal keys. Use the above create personal keys and chain code and go them to the above mentioned pointed out perform kchild = kpar + hash(Kpar, cpar, i) to deliver specific keys. https://tvsocialnews.com/story4628744/bip39-mnemonic-https-linktr-ee-bip39-a-simple-key-for-bip39-unveiled