{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology?","a":"Data security: Blockchain adopts encryption algorithms to ensure that data is difficult to  tamper with. In traditional centralized networks,"}]}],"pr":"a94f8d0dff2bdf343e255c6a78d566369a820eb58e04febd2026fe89e4e7656f"}