Bip39 mnemonic checksum https://telegra.ph/Producing-Custom-Bitcoin-Addresses-A-Take-A-Look-At-BIP39-Strategies-06-28 While it takes advantage of BIP32 process you can nevertheless import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 Edition which some wallet use with the technology of seeds. Some wallets can import different seed phrases and several only ... https://active-bookmarks.com/story20308030/bip39-word-list-trust-wallet-new-step-by-step-map-for-bip39-github-https-cutt-ly-uryc5rw7