Bip39 Mnemonic Code Converter Tool. Is passphrase similar to PIN? No, a passphrase just isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of protection to your wallet that actually works alongside your seed phrase to encrypt and protect your wallet. https://admiralbookmarks.com/story18852598/ian-coleman-bip39-https-linktr-ee-bip39-a-simple-key-for-bip39-unveiled