Bip39 entropy https://www.slideserve.com/lewarthbfp/getting-a-bip39-phrase-in-python-a-comprehensive-tutorial Even though it makes use of BIP32 system you could continue to import BIP39 seeds into Electrum wallet. Also apart from BIp32 You can find BIP44 Variation which some wallet use for the era of seeds. This tends to teach you empty balances. This is often why https://jsbin.com/titaniseko