Bip39 Word List Numbers. Is passphrase similar to PIN? No, a passphrase just isn't the same as a PIN. A passphrase, during the context of Bitcoin wallets, is an extra layer of stability towards your wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://brightbookmarks.com/story18851343/bip39-passphrase-https-linktr-ee-bip39-bip39-words-an-overview