Bip39-Standalone. Now, at the next level we use these receiving and alter vital bunch to create individual non-public keys. Use the above mentioned make private keys and chain code and pass them to the above mentioned stated function kchild = kpar + hash(Kpar, cpar, i) to crank out personal keys. https://social4geek.com/story4309215/bip39-wallet-https-linktr-ee-bip39-what-does-ian-coleman-bip39-mean