{"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":"53864be3fbfb80794879cd00954979ebdebe796318ec233405f09e23b40988ee"}