Seed Phrese. Even though it makes use of BIP32 strategy you may still import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 Model which some wallet use for that technology of seeds. We welcome contributions from the Local community to produce Seed Phrase Checker better still. https://finance48269.wikikali.com/1003088/the_anatomy_of_a_bip39_phrase_entropy_words_and_stability