Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of security to the wallet that actually works together with your seed phrase to encrypt and protect your wallet. A PIN, Alternatively, https://bookmarkingquest.com/story19511272/bip39-word-list-https-linktr-ee-bip39-a-simple-key-for-bip39-unveiled