Bip39 Passphrase. Hence, to back up the been given bitcoin, you must transcribe many of the personal keys generated on occasion. In fact, this solution is very unpleasant. BIP39 Mnemonic phrase is usually a list of words that retailer all the knowledge needed for the Restoration of the Bitcoin wallet. https://directory-expert.com/listings13095406/bip39-vs-slip39-https-linktr-ee-bip39-5-tips-about-bip39-python-you-can-use-today