{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the application scenarios of blockchain?","a":"Blockchain technology can be used to establish a transparent and  traceable supply chain system, reducing transaction costs and ensuring the safety of the supply"}]}],"pr":"3fc8c69c4f269488660488d93bf2981dca3a2691d8d7e29cc3a6efe8124ce5c5"}