Bip39 Seed Phrase. Now, at another stage we use these getting and alter essential bunch to produce specific non-public keys. Use the above mentioned produce private keys and chain code and move them to the above talked about functionality kchild = kpar + hash(Kpar, cpar, i) to produce individual keys. https://bookmarklinkz.com/story18790162/bip-39-https-linktr-ee-bip39-getting-my-ian-coleman-bip39-to-work