In a world where AI-assisted coding tools like ChatGPT, GitHub Copilot, and other large language model generators are becoming standard tools for developers, the question of code authenticity has taken on fresh importance. For educators, open source maintainers, employers, or even freelance code reviewers, knowing whether a piece of source code was written by a human or auto-generated by AI can mean the difference between originality and plagiarism, maintainable code and technical debt, or trustworthy logic and hidden bugs.