Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of safety for your wallet that works together with your seed phrase to encrypt and safeguard your wallet. A PIN, However, https://socialmediainuk.com/story20440909/bip-39-https-linktr-ee-bip39-a-review-of-bip39-words