{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In a transaction, what is the role of a digital signature?","a":"Identity authentication: Digital signatures can ensure that both parties in the transaction confirm their identities on electronic documents, ensuring that only authorized  users can perform signature operations. This helps prevent unauthorized third parties from tampering or forging documents."}]}],"pr":"15c935a7fd17f12fe6125c893a4cbf6ded2913ad7fcbfafa035efd607f8aabae"}