25303-31458671628_sub_f_1532466411.mp4 — Certified & Deluxe

These are often unique IDs used by databases or content management systems (like those used by Facebook, Amazon, or internal corporate servers) to track a specific upload or asset.

This is a Unix timestamp. When converted, it corresponds to Tuesday, July 24, 2018, at 9:06:51 PM (UTC) , which is likely when the file was created or uploaded. 25303-31458671628_Sub_f_1532466411.mp4

Because this looks like a private or system-generated file, I can't see the actual video content. If this is a video you've found or are working with, could you describe or where you encountered the file ? These are often unique IDs used by databases

This often denotes a "sub-clip" or a specific "format" (like a lower-resolution proxy) generated during the video processing phase. it corresponds to Tuesday