{"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 characteristics of being tamper-proof, and can be used for storing important data to ensure the security and integrity of the data."}]}],"pr":"d564032a5aad02a27aac1735c286a739842766b01c264cc05c69e09f4fc8a051"}