Bip39 first 4 letters https://mariobrpx591.cavandoragh.org/getting-a-bip39-phrase-in-python-a-comprehensive-tutorial Although it employs BIP32 process you'll be able to however import BIP39 seeds into Electrum wallet. Also besides BIp32 there is BIP44 version which some wallet use to the technology of seeds. Push X to abort passphrase application and continue to keep modifying the pas... https://pr1bookmarks.com/story21213264/bip39-or-slip39-indicators-on-bip39-standard-you-should-know-https-x-com-tundra838554