{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the main applications of blockchain technology?","a":"Data storage: Blockchain technology has the attribute of being tamper-proof, and can  be applied to data preservation and storage, such as certificate storage and traceability scenarios."}]}],"pr":"0ec8f85f08e1e7428860b09c54fb8cb36c389a18af6a447085919428f059b528"}