Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase is just not the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of stability on your wallet that works together with your seed phrase to encrypt and defend your wallet. A PIN, https://socialmarkz.com/story9276847/bip39-https-linktr-ee-bip39-a-review-of-bip39-words