{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the possible paths for blockchain upgrading?","a":"Technological innovation: Continuously optimize the core technology of blockchain, such as improving transaction speed, reducing transaction costs, and enhancing system security."}]}],"pr":"f17d7003a88c8db1c998c79ea70c0f00b3d3907b215f87045445a7a74d0db7b2"}