Bip39 Npm. Now, at the next level we use these receiving and change vital bunch to create individual non-public keys. Use the above mentioned create personal keys and chain code and pass them to the above mentioned described purpose kchild = kpar + hash(Kpar, cpar, i) to produce unique keys. https://johsocial.com/story9017756/ian-coleman-bip39-https-linktr-ee-bip39-a-review-of-bip39-generator