Bip39 Checksum. Is passphrase similar to PIN? No, a passphrase will not be similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an extra layer of protection to the wallet that works together with your seed phrase to encrypt and safeguard your wallet. A PIN, on https://bookmarkfame.com/story19186834/bip39-mnemonic-https-linktr-ee-bip39-a-secret-weapon-for-bip39-mnemonic