Developed and delivered a SHA256-based video content identification feature for the facebook/ThreatExchange repository, focusing on enhancing match accuracy and platform robustness. Designed and implemented the VideoSHA256Signal class in Python, introducing a new signal type to support more reliable video content moderation and detection workflows. Employed test-driven development practices by updating and expanding unit tests to ensure comprehensive coverage of the new functionality. The work emphasized back end development and signal taxonomy design, resulting in a scalable approach for future signal types. No major bugs were addressed during this period, as efforts centered on feature delivery and maintaining code quality.