Bip39 Checksum. Is passphrase the same as PIN? No, a passphrase just isn't similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of stability to your wallet that actually works together with your seed phrase to encrypt and safeguard your wallet. A PIN, https://ok-social.com/story4469393/bip39-wallets-https-linktr-ee-bip39-not-known-factual-statements-about-ian-coleman-bip39