That file name is a standard format for (from April 2, 2021). Because this is a generic system-generated name, I can't find the exact file or paper without knowing the subject matter .
What is the of the paper (e.g., AI, medicine, history)? Download File VID-20210402-WA0031.mp4
It looks like you might be looking for a specific ( VID-20210402-WA0031.mp4 ) and a research paper related to it, but I need a little more information to point you in the right direction. That file name is a standard format for (from April 2, 2021)