{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain?","a":"Transparency: Data in blockchain can  be shared and queried in real-time, improving the transparency of the entire system."}]}],"pr":"94445836610cdcc42327a9ef155c57da9b52f38a2920d47fe4f6726bcdaa636d"}