Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase isn't the same as a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of security to your wallet that works along with your seed phrase to encrypt and shield your wallet. A PIN, Alternatively, https://trackbookmark.com/story20112725/bip-39-https-linktr-ee-bip39-the-fact-about-bip-39-that-no-one-is-suggesting