Check if it belongs to a known machine learning dataset (like those on Hugging Face ) or a web-scraping project where files are named by their content hash.
If you need to know exactly what is inside this specific file (resolution, frame rate, or original creation date), you can inspect its metadata: 5fbfa28f9c45cb25769e3_source.mp4
If you found this file in a specific directory or cloud storage, the alphanumeric string is likely a . Check if it belongs to a known machine