Bip39 passphrase wallet https://www.empowher.com/user/4550298 While it employs BIP32 technique you could still import BIP39 seeds into Electrum wallet. Also apart from BIp32 You can find BIP44 version which some wallet use for that era of seeds. Unlike standard wallets derived entirely from the seed phrase, passphrase-guarded wallets are hidden from https://hindibookmark.com/story22746548/bip39-seed-phrase-not-known-details-about-bip39-generator-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw