Bip39. Creating a robust and safe BIP39 passphrase is a significant move, but it’s just the beginning of your journey in securely storing Bitcoin. BIP39 is actually a style implementation that lays out how copyright wallets create the list of words (or "mnemonic codes") that make up a mnemonic sentence, https://guidemysocial.com/story4033357/bip39-generator-https-linktr-ee-bip39-not-known-facts-about-bip39