{"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, which can be used for storing important data such as contracts, certificates, etc., ensuring the authenticity and integrity of the data."}]}],"pr":"74836439977cfc22a1ed52e1ac36ee1658102e20c1d84b896699fe4dad537bb7"}