Bip39 first 4 letters https://hubpages.com/@lefwenuuyr Despite the fact that it takes advantage of BIP32 strategy it is possible to nevertheless import BIP39 seeds into Electrum wallet. Also in addition to BIp32 There exists BIP44 Edition which some wallet use to the era of seeds. This performs because BIP39 is supported https://listfav.com/story22524038/bip-39-how-many-words-a-simple-key-for-bip39-github-unveiled-https-x-com-tundra838554