Bip39 rules https://zanevnex175.lowescouponn.com/practical-use-a-python-based-bip39-seed-generator-in-the-real-world Although it uses BIP32 system you are able to continue to import BIP39 seeds into Electrum wallet. Also in addition to BIp32 There exists BIP44 version which some wallet use with the technology of seeds. Before, bitcoin and other copyright wallets were created and acces... https://socialmediastore.net/story21063271/bip39-passphrase-recovery-bip39-compatible-wallet-an-overview-https-cutt-ly-uryc5rw7