{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What guarantees the security of digital currencies using blockchain technology?","a":"Decentralization:  Blockchain technology adopts a decentralized network architecture, where data is not managed by a single centralized institution, but is distributed across multiple nodes. This decentralized feature can effectively prevent hacker attacks and data tampering, thereby improving the overall security of the system."}]}],"pr":"4b4325d09155d52cc8edf605a1a66d0852b6a9735f8cb736b8bfcc6f67e13488"}