This alphanumeric string looks like a or a CDN identifier typically used by cloud storage services or video hosting platforms.
If you have the file, you can upload a screenshot of a frame to a visual search engine like Google Lens to identify the show, movie, or creator.
If you are interested in the technical side of that specific format: 1280 x 720 pixels. Aspect Ratio: 16:9 (Widescreen).
If you found this in a browser's "Downloads" or "Cache" folder, look at the URL you were visiting right before it appeared.
Since this isn't a searchable title, you can try these steps to find out what the video actually is: