{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is blockchain applied in the IoT field?","a":"Device Identity Verification and Trust Building: Blockchain can provide identity verification services for IoT devices, ensuring trust relationships between devices. By putting device identity information, certificates, and  permissions on the chain, blockchain enables secure and reliable communication between devices, reducing the risk of security breaches and malicious attacks."}]}],"pr":"c2c986309218156e6d07949823a9081562fbda9445d00fc798f5e231b78747f4"}