Bip39 Checksum. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an extra layer of security towards your wallet that works along with your seed phrase to encrypt and protect your wallet. A https://mediajx.com/story21924669/bip-39-https-linktr-ee-bip39-a-simple-key-for-bip39-unveiled