It's not necessary to know all the small print of BIP39 to be able to use copyright - but you would certainly benefit from realizing slightly about it. This article points out BIP39, the standard that defines how seed phrases are made, and summarizes how BIP32 and BIP44 standards enable https://rankuppages.com/story4625393/the-fact-about-valid-bip39-seed-phrase-that-no-one-is-suggesting