{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain be applied in the field of public services?","a":"Cost reduction: Blockchain technology can simplify processes, reduce the participation of third-party institutions, reduce the  cost of public services, and improve efficiency."}]}],"pr":"299a832e5aff031b5766678c8c19e4aacf06397851f36bf41c08e1e840dc2ab8"}