Bip39 or slip39 https://padlet.com/alexzhiglatyzbugt/bookmarks-68ta5bpd7yy3slro/wish/PVKBQO1nwDeMWj5x Although it takes advantage of BIP32 system it is possible to continue to import BIP39 seeds into Electrum wallet. Also besides BIp32 There's BIP44 Variation which some wallet use to the generation of seeds. Subscribe to our weekly mailing list and get most up-to-date copyright inform... https://edgargvkh682.theburnward.com/a-novice-s-overview-to-getting-a-bip39-mnemonic-expression