: If you downloaded this from a chat app, the app likely stripped the original metadata (like "my_dog.mp4") and replaced it with this string to track it within their database.
: Sometimes video editing software creates temporary source files with these types of names during the rendering process. 3. Potential Content Types 0h1zhf6wf149uj9m7w7m8_source.mp4
Files with long, alphanumeric strings are often the result of like Discord, Reddit, or a cloud storage service. : If you downloaded this from a chat
: Right-click the file and select Properties (Windows) or Get Info (Mac) to see the creation date or the "origin" URL if available. 0h1zhf6wf149uj9m7w7m8_source.mp4