Bip39 Checksum. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of security to the wallet that actually works along with your seed phrase to encrypt and secure your wallet. https://bookmarkingquest.com/story19441134/bip39-word-list-https-linktr-ee-bip39-bip39-words-an-overview