{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the main features of blockchain?","a":"Decentralization: Blockchain adopts a distributed network architecture, does not rely on centralized servers or institutions, and reduces  the risk of single-point failure."}]}],"pr":"179e50033ea960dc9f06c7aa3189d630e54e6cff9d75b866b9cd503f0a677105"}