{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain?","a":"ata transparency: All transaction records in the blockchain are public, which helps to enhance transparency  and credibility."}]}],"pr":"414e637227bd25ee555cd6b59426352230a36caf1481a37b416490ad6f03c9e3"}