This is the signature of the "release group" or individual responsible for encoding the file, a common practice in the digital archiving community to denote the source and reliability of the data. The Platform: TeraBox and Cloud Accessibility

: Set links to expire automatically after a few days. Storage & Backup

You might ask: Why not just use BitTorrent or a USB drive?

While downloading a file like this may seem straightforward, there are significant risks involved.

First, let’s decode the file we are dealing with. The filename Avengers.Endgame.2019.720p.BluRay.x264-DRAYS.mkv tells us a lot about the storage and sharing requirements:

: The vertical resolution (1280 x 720 pixels). It is standard High Definition (HD).