Bip39 mnemonic seed phrase https://files.fm/u/2eemhhak2q#design While it makes use of BIP32 method you can still import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 Model which some wallet use to the era of seeds. BIP39 simplifies critical management by replacing extensive cryptographic data with straightforward-to-use words. https://bookmarkbells.com/story20570235/bip39-flutter-an-unbiased-view-of-bip39-2048-words-https-x-com-tundra838554