Paper wallet bip39 https://felixkkjt585.theglensecret.com/bip39-word-checklist-generator-crafting-your-own-special-seed-phrase Even though it takes advantage of BIP32 system you can continue to import BIP39 seeds into Electrum wallet. Also apart from BIp32 There's BIP44 Model which some wallet use to the era of seeds. What’s interesting is that each distinctive passphrase you use Whil... https://postheaven.net/tiablexcen/recognizing-the-duty-of-bip39-in-copyright-budgets