{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology in data storage and transmission?","a":"Distributed storage: Blockchain adopts a  decentralized distributed storage method, storing data on multiple nodes, avoiding single points of failure and improving system stability and reliability."}]}],"pr":"34d22337c50ac86248b39b4f12a23b583da2ad36c6d00ca2a7f3e178599d1eda"}