Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of stability to your wallet that actually works together with your seed phrase to encrypt and secure your wallet. A PIN, https://olivebookmarks.com/story18770419/bip39-list-https-linktr-ee-bip39-an-unbiased-view-of-bip-39