{"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":"75aba2d87eae18e5fad847a46548d73e99838f8ab1091855bda70e9d24f7b221"}