Bip39 regex https://www.sbnation.com/users/typhanhmdy Though it utilizes BIP32 approach you can even now import BIP39 seeds into Electrum wallet. Also besides BIp32 There's BIP44 version which some wallet use to the generation of seeds. BIP39 improves wallet stability by generating backups trustworthy, simple, and resistant to errors. Having said that, the https://penzu.com/p/2ea6922b70254307