Bip39 Regex Although it uses BIP32 technique it is possible to still import BIP39 seeds into Electrum wallet. Also apart from BIp32 There may be BIP44 Variation which some wallet use for that era of seeds. To keep your Bitcoins you in essence require a wallet app. You can obtain https://bookmarkspedia.com/story4111241/bip39-dice-bip39-an-overview