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 additional layer of stability to your wallet that actually works along with your seed phrase to encrypt and defend your wallet. A PIN, https://socialmediainuk.com/story21895759/bip39-wallet-https-linktr-ee-bip39-not-known-factual-statements-about-bip39-list