{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in smart cities?","a":"Internet of Things (IoT) Integration:  Blockchain technology can securely connect with IoT devices, enabling data transmission and collaboration between devices, and improving the level of intelligence of urban facilities."}]}],"pr":"9f874b7d075182c3dc53347b1ebcfb54f2ba8d0c9891b507e8cbbcef3996a814"}