{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages and limitations of blockchain technology?","a":"Data transparency: The data in the blockchain can be real-time shared and queried, improving  information transparency and helping to eliminate manipulation and fraud in intermediate links."}]}],"pr":"34dd92feebd7f68cca80b26bfb0a1ef2811850871c8110ec0e57093833d63e2b"}