{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the application areas of blockchain technology?","a":"Internet of Things and logistics field: Blockchain technology can be used to reduce logistics costs, trace the production and transportation  process of goods, and improve the efficiency of supply chain management."}]}],"pr":"cacc99af5019f2761a4364a873ab2092ecac1f4a155a62faaf83fb37ed08286f"}