Bip39 add private key https://squareblogs.net/edelinepge/using-python-to-produce-a-bip39-mnemonic-a-developers-point-of-view Abra - A cell wallet that supports BIP39 seed phrases, offering both wallet and Trade features for cryptocurrencies. BIP32 and BIP44 work with each other so as to add flexibility, privacy, and interoperability to HD Wallets. HD Wallets lengthen the capabilities ... https://gravatar.com/sparklyusually6089a4f337