ELI5: Explain Like I'm 5

Digital video fingerprinting

Have you ever played a game of hide and seek and you can always tell who is hiding because you know what they look like or what they wear? This is kind of like digital video fingerprinting.

When we watch videos on the internet, sometimes companies want to know what we are watching so they can show us ads that are related to what we are interested in. They use digital video fingerprinting to figure out what we are watching.

Digital video fingerprinting is like giving the video a unique ID that no other video has. Just like how you have a name that no one else has, this fingerprint is unique to this video. It can tell us information about the video like who made it, what it's about, and when it was made.

So when you watch a video online, it's like you're playing hide and seek. The companies are trying to figure out what you're watching by looking at the fingerprints of the videos you watch. That way, they can show you ads that match what you're interested in!