{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the field of traceability and origin tracking?","a":"Decentralization: Blockchain technology adopts a distributed network architecture, without a single central node, thus improving the security of data. In the field of traceability, the decentralized feature ensures the authenticity and  reliability of data, preventing data tampering."}]}],"pr":"7b3d5f22fe600565af11aa4ec86bfb961953a23253011fe5e0aa2a13ed6f3f7e"}