{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain be applied in traceability systems?","a":"Data transparency:  By using blockchain technology to chain product production, processing, and sales information, the information in the entire supply chain process is made transparent, and consumers can check the product production process and batch information at any time."}]}],"pr":"69cc4d587598041722f419c7a7a869b77adc3a652d443f9bd2544ef460222320"}