{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the operational steps required for a successful blockchain upgrade path?","a":"Technical research: Study existing blockchain technology, understand its  advantages and disadvantages, and provide technical support for the upgrade plan."}]}],"pr":"fa820bc348040e47973fc4c49542f9ed32820efc81f93cb6eac3349174e6c6e8"}