{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain?","a":"Transparency: The data in  blockchain can be real-time shared and queried, improving the transparency of the entire system."}]}],"pr":"e673f0b68bd77dc557916c396e3020a44c8f5e17d7f1158a01b52a94b00c7896"}