{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What time points should be paid attention to when conducting planned enhancement and upgrade of blockchain?","a":"Code review and testing: During  the upgrade process, conduct a strict review of the code to ensure the feasibility and security of the upgrade plan. At the same time, carry out sufficient testing to verify whether the upgraded system functions and performance meet expectations."}]}],"pr":"cd88c8d1f21773177882d0ec23526eeb509b16ea220b47de6ef17a55c018ca8b"}