Bip39 blockchain https://blogfreely.net/travenmdoq/create-your-own-distinct-bip39-mnemonic-expression-with-python-scripts Although it employs BIP32 method you may still import BIP39 seeds into Electrum wallet. Also aside from BIp32 You can find BIP44 Edition which some wallet use to the generation of seeds. Compared with standard wallets derived solely from a seed phrase, passphrase-s... https://natural-bookmark.com/story20028035/bip39-mnemonic-generator-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com