Bip39 or slip39 https://canvas.instructure.com/eportfolios/3396498/ricardooxtv236/bip39-generator-online-the-very-best-tools-for-secure-pocketbook-development Though it makes use of BIP32 method you are able to nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 There is certainly BIP44 Model which some wallet use for the technology of seeds. BIP39 solves this by ... https://e-bookmarks.com/story5704602/bip39-ethereum-wallet-bip39-passphrase-generator-options-https-linktr-ee-bip39