: This string of letters and numbers is a Universally Unique Identifier . It is a randomly generated ID used by the operating system to track the specific edit session or the unique identity of that individual file.
However, files with these types of names often appear in "lost media" or "creepypasta" circles when someone finds an anonymous video online without a title. Users sometimes mistake the technical system ID for a cryptic code or a secret message. In reality, it just means someone took a longer video, cut it down to a shorter clip on an iPhone or Mac, and saved it as a new file. Download trim A48FFF9B 73CA 4F86 8D1E 7EE048DB9DD5 mov
There is no single "long story" or urban legend associated with this specific sequence of numbers. Because UUIDs are generated randomly, millions of users around the world have files with names formatted exactly like this one. : This string of letters and numbers is