Bip39 documentation https://www.storeboard.com/blogs/ai-for-small-business/browsing-the-globe-of-bitcoin-addresses-the-value-of-bip39/6240727 While it employs BIP32 process you are able to nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 there is BIP44 version which some wallet use to the generation of seeds. He is likewise the creator of quite possibly the mos... https://ameblo.jp/generate-bip39brooks/entry-12913353546.html