Bip39 standard https://collinmmss433.lucialpiazzale.com/from-concept-to-fact-generating-bitcoin-addresses-with-bip39 Abra - A cellular wallet that supports BIP39 seed phrases, giving equally wallet and exchange options for cryptocurrencies. This extra complexity improves the hazard of misplacing the passphrase, and so getting rid of your copyright. but it isn't really a passphrase tha... https://bookmarkmiracle.com/story21575022/bip39-generator-github-5-tips-about-bip39-checksum-you-can-use-today-https-cutt-ly-uryc5rw7