{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the efficiency of big data storage and processing?","a":"Distributed Storage: Blockchain adopts a decentralized distributed storage method, where data is stored on multiple nodes, each  with a complete data copy. This layout alleviates the burden on single nodes and improves the stability and security of data storage."}]}],"pr":"0405ad3845bf711b2bcc6b4057373086ba7b8354e7aefa59182a3b9da73e74e9"}