{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the differences between blockchain and traditional databases?","a":"Data storage and management method: Blockchain adopts  distributed ledger technology, storing data on multiple nodes, achieving decentralized control; while traditional databases use centralized storage, concentrating data on servers, which are managed and maintained by specialized personnel."}]}],"pr":"d7221d2da47e3ffe4b4114f09b3fcc929a9b13df10e525a0827ef4a2d8250d5e"}