{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve digital identity protection?","a":"Identity authentication: The consensus mechanism and encryption algorithms in blockchain technology can ensure the authenticity and  security of identity authentication, preventing identity fraud and tampering."}]}],"pr":"8ce06875bb7ded5d315489cb52df94d2766dc17f52bd9c2d5b5132e9eb323fee"}