If you can describe the content (for example, if it's an animation, a gaming clip, or music), I can likely track down the history or the creator for you. What was happening in the when you saw this name?
Sometimes these alphanumeric strings refer to specific re-uploads of deleted content from YouTube or Twitch. Shin13912mp4
To help me give you the right "text" or context, could you tell me or what the video is about ? If you can describe the content (for example,