{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in smart cities?","a":"Smart Contracts: Smart contracts in blockchain technology can automatically execute contract terms, achieving efficient operation of urban management,  such as in smart transportation, smart energy, and other scenarios."}]}],"pr":"bb5607e632da993302fc9779c812792e7f7cbb4c49d6a33893dd8e5e1076a5e4"}