Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability on your wallet that works together with your seed phrase to encrypt and defend your wallet. A https://socialwebconsult.com/story4202256/bip39-list-https-linktr-ee-bip39-bip39-words-an-overview