{"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 to ensure the security and integrity of the data."}]}],"pr":"e99970410c78149670bfe88ffc1c2c771dbef17915410d13b6ab0228dd585882"}