Bip39 Checksum. Is passphrase the same as PIN? No, a passphrase just isn't the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an additional layer of safety to your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. A PIN, https://bookmarktune.com/story18567080/bip-39-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work