Worked on the oceanbase/odc repository to enhance the user experience during signature verification by delivering clearer, more actionable error messages for InvalidSignature scenarios. Focused on improving internationalization and user guidance, the update provided specific feedback to users encountering signature issues without altering the underlying verification logic. This approach aimed to reduce user confusion and minimize support requests, streamlining the troubleshooting process. The work was implemented in Java, leveraging internationalization best practices to ensure clarity across diverse user bases. Over the course of the month, the developer concentrated on this targeted feature, emphasizing maintainability and user-centric design in the codebase.