If you are looking for the of this video, it is likely a clip shared on a forum or social media site. Since these IDs are unique to specific uploads, you can sometimes find the original post by searching the exact string on the platform where you first saw it.
When a user uploads a video to a social platform, the site's backend assigns a unique alphanumeric ID (like 0h147u... ) to track the raw file in their database. 0h147u4bt2fstxh24b4p0_source-erlURZ9j.mp4
The "long story" behind such a file name usually involves the following lifecycle: If you are looking for the of this
Do you remember you originally downloaded this file from? How to play MP4 files in Windows - Microsoft Support ) to track the raw file in their database
If you are having trouble viewing the file, tools like VLC Media Player or Windows Media Player are standard for opening MP4 containers.