Bip39 root key https://atavi.com/share/xbwf7vz16jgof Though it works by using BIP32 system you could still import BIP39 seeds into Electrum wallet. Also other than BIp32 There's BIP44 Model which some wallet use for that generation of seeds. Some wallets can import several seed phrases and several only have 1 standard. Bear https://opensocialfactory.com/story22475642/bip39-taproot-bip39-ian-coleman-for-dummies-https-x-com-tundra838554