The 21-character alphanumeric string is likely a UUID or Hash used by a database to track the video’s metadata (e.g., upload date, owner, and permissions).
This naming convention is common in video-on-demand (VOD) pipelines where a unique hash is assigned to prevent filename collisions. Technical Breakdown 0h4z378fufd3tp957ke00_source.mp4
Because this is a system-generated string, there is no public documentation or standard "write-up" for it. However, if you are looking to document this file for a project or technical report, you can use the following structured template: File Name: 0h4z378fufd3tp957ke00_source.mp4 Asset ID: 0h4z378fufd3tp957ke00 Format: MPEG-4 Video (MP4) The 21-character alphanumeric string is likely a UUID