{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the field of public services?","a":"Internet of Things and  logistics sector: Blockchain technology can enable traceability of goods and optimize supply chain management. By using blockchain, logistics costs can be reduced, logistics efficiency improved, and information security and accuracy ensured. For example, blockchain can be used to track and trace goods in the supply chain."}]}],"pr":"a75e1bec2307aab5e73e39d86913ee5948a8b49fec870e49e78a0c9418608aaa"}