Numerical strings that ensure no two files overlap in a chronological archive.

To prevent data loss, the file is often mirrored across multiple physical locations (Cloud, On-premise, or Cold Storage).

Indicating the quality (e.g., "FHD" often standing for Full High Definition).

As we move toward 8K resolution and beyond, the identifiers will become even more complex. However, the core principle remains the same: creating a reliable, searchable history of our digital lives. Whether it's a corporate backup or a public historical record, every .mp4 file is a piece of a larger puzzle.