{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the main application scenarios of blockchain technology?","a":"Supply chain management:  Blockchain technology can improve the transparency of the supply chain and achieve collaborative cooperation among all links in the supply chain. Through..."}]}],"pr":"be3f24986bdeda534f3ce49213786a5df73fc2a221fe147ca49859ad6d01c8c5"}