{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the repair and restoration work carried out during the blockchain upgrade process?","a":"Problem Identification: Firstly, it is necessary to identify the existing problems in the blockchain system, which may include security vulnerabilities, performance bottlenecks, insufficient functions, etc.  These issues may be evaluated and discovered by internal teams or external experts."}]}],"pr":"23859db6c777bf173a2d6c44f1b1e8cc84b673467535b84f8e3ddcde954f5876"}