{"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":"9bc79ce2e67af2cf3c004e228f100623966112a6f81284ec560fa7772fd028f4"}