{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the security and privacy protection of digital identity?","a":"Decentralization: Blockchain adopts a  decentralized network architecture, where data is not managed by a single central institution, but is distributed across multiple nodes. This design makes it difficult for hackers to attack a single node and affect the entire network, thereby improving the system's security."}]}],"pr":"d4e86b2235835c65d1605557d338a6625e0d2cc845f819ba1f9f2e8ee7dce1b1"}