{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology apply to digital identity verification?","a":"Improving authentication efficiency: Blockchain-based identity authentication systems can achieve fast and convenient authentication processes, reducing unnecessary time and economic costs  for users."}]}],"pr":"f7f6a8435b6ed3caff4892aa11fdf01890acc7f286d994671cd4b01139839d3a"}