{"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":"40b468ed1e9a1db027bdea97d9aef5ec2e4220de5870bf37a3ae07ef7a54529a"}