{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the core characteristics of blockchain?","a":"Decentralization: Blockchain adopts a distributed network architecture, does not depend on centralized  servers or institutions, and reduces the risk of single-point failure."}]}],"pr":"b3de6d6c9c68a2ece4b10070f861310b1e492912aff9d7afc0d659b9a4d1cb6e"}