{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the application scenarios of blockchain?","a":"Data storage: Blockchain technology has the attribute of being tamper-proof, and can be applied to  data storage and preservation, ensuring the authenticity and integrity of the data."}]}],"pr":"24527425c122202029b89f4a44cea25c27a24b72421cb402023b6dbe9aa85bc5"}