Bip39 Checksum. Is passphrase the same as PIN? No, a passphrase is just not the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of protection for your wallet that actually works along with your seed phrase to encrypt and safeguard your wallet. https://echobookmarks.com/story19616035/bip39-generator-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained