If you are seeing this on a specific site, it likely means the video was cleared for posting because the "proper paper" (the necessary rights or permissions) was confirmed.

: Often refers to the creator or a specific personality (e.g., a streamer or TikToker).

The file name you provided——follows a common convention used by content creators or archiving services:

: In some professional engineering or design circles, it refers to moving an idea from a "quick approximation" to a formalized, properly documented format. Context of the File Name

: May be a specific project name, platform, or a collaborator. VID-142 : A standard sequential ID for tracking media files.