{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the credibility and transparency of data?","a":"Distributed data storage: Blockchain stores data on multiple nodes in  the network, achieving distributed storage and synchronization of data. This approach makes data less susceptible to tampering,"}]}],"pr":"2e7671da5eafb7c4413146637d824938775805c5292236a604047d7a635f0aec"}