{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the steps involved in upgrading a blockchain?","a":"Requirement Analysis: Based on the existing functions and performance of the blockchain, clarify the goals and needs of  the upgrade, such as increasing transaction speed, enhancing throughput, and optimizing user experience."}]}],"pr":"4f0f2ce40fb49851cf4b4df6e23a6644dea6486812cdd2d0d2b5dd9820c48a92"}