MP4 Tampering Forensic Analysis

I have a recorded MP4 that must be examined in detail to confirm whether any part of it has been tampered with or otherwise altered. The clip is the only source file available, so I need a full forensic... (Budget: $30 - $250 USD, Jobs: AI (Artificial Intelligence) HW/SW, Algorithm, C++ Programming, Digital Forensics, Matlab and Mathematica, OpenCV, Python, Video Editing)