"0001" means this was the first WhatsApp video saved to the device's storage on that specific day. What the File Tells Us
When you share a video on WhatsApp, the app compresses the file and renames it. The original name given by the phone's camera (like "IMG_1234") is lost. VID-20201122-WA0001.mp4
Often, specific filenames like this one trend online because they are associated with , urban legends, or specific leaked clips that spread rapidly through messaging groups. However, without the actual video content, the name itself is just a digital timestamp of a moment shared during the late 2020 pandemic period. "0001" means this was the first WhatsApp video
Because WhatsApp strips original metadata (like GPS location or camera settings) to protect privacy and save space, the filename becomes the primary way to track its history. Often, specific filenames like this one trend online