{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What problems does blockchain technology solve?","a":"Decentralization: Blockchain adopts a distributed network architecture, and the data does not depend on a central node for storage and management, thereby  reducing the risk of single-point failure and improving the stability and security of the system."}]}],"pr":"85a61b9ddd473b158d57db9c6b1b7a8bc21f2d1f7eeb383c3f39a4977aa5d0cb"}