Bip39 Checksum. Now, at another level we use these receiving and change essential bunch to make personal non-public keys. Use the above mentioned deliver non-public keys and chain code and pass them to the above talked about functionality kchild = kpar + hash(Kpar, cpar, i) to crank out person keys. https://bookmarklogin.com/story18861392/bip39-wallets-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described