The filename is a standardized naming convention used by Telegram for files uploaded or shared within its platform.
The numeric string is unique to that specific upload instance on Telegram's servers, but it does not describe the video's content (e.g., whether it is news, a meme, or a personal clip). 4_5971967277069766196.mp4
The video was likely downloaded from or shared via a Telegram channel or group. The filename is a standardized naming convention used
Because this is a generic system-generated ID, there isn't a single "original" post associated with it across the internet. Instead, this filename indicates: whether it is news
To find the "full post" or the context of the video, you would typically need to look back at the where you first encountered the file or link.