{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the Internet of Things (IoT) field?","a":"Device Identity Authentication: Blockchain technology  can provide secure identity authentication mechanisms for IoT devices. By chainning device identity information, certification records, and other data, trust and mutual recognition between devices can be achieved, reducing the risk of device attacks."}]}],"pr":"ddd8610630f8c58cd87670b34962ca5fd379e1b666fc80887c497b399edd52c8"}