{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Compared to traditional databases, what are the advantages of blockchain?","a":"Transparency and openness: All transaction records on the blockchain are public and can be viewed by anyone, thereby improving the transparency and trustworthiness of the  entire system."}]}],"pr":"30b4fccb2c514098095f1e9ce7f7fe12909ef738880715623adb8fc4b5017117"}