Bip39 regex https://www.storeboard.com/blogs/ai-for-small-business/browsing-the-globe-of-bitcoin-addresses-the-value-of-bip39/6240727 Though it works by using BIP32 system you'll be able to however import BIP39 seeds into Electrum wallet. Also other than BIp32 There may be BIP44 version which some wallet use for the technology of seeds. This additional complexity increases the risk of... https://unsplash.com/@morganvmyg