It is not important to know all the details of BIP39 so that you can use copyright - but you would certainly get pleasure from understanding just a little over it. This text explains BIP39, the standard that defines how seed phrases are made, and summarizes how BIP32 and BIP44 https://prbookmarkingwebsites.com/story21960769/bip39-seed-phrase-mnemonics-generator-an-overview