: The inclusion of _source suggests this is the original, uncompressed, or high-resolution version of a file before it was processed into different qualities for streaming.
: The string 0gltdlr6ia12dibxmzrn2 is a high-entropy hash or unique ID used by servers to prevent file name collisions. 0gltdlr6ia12dibxmzrn2_source-8VxlFoDG.mp4
Without more context, it isn't possible to determine the specific visual content of the video. If you found this in a cache folder or a download directory, it is likely a temporary file from a website you recently visited. : The inclusion of _source suggests this is