Some of these files were made by people. Some were made by machines. You're the night analyst at an archive terminal, and every file that comes in needs a verdict: HUMAN or AI.
Looking closer costs points. Decrypt a photo sector by sector, extend a voice clip second by second, unlock more of the footage. A call made on less evidence pays more. A wrong call ends the run.
After every verdict the file is declassified: who made it, why, and the giveaway you could have caught, down to the sector, the second or the message.
Nearly 300 files across five kinds of evidence: photos of people, voices, video, written answers and chats. The real ones come from open archives. Every AI file is real output from real models, from early face generators and Stable Diffusion XL to Wan 2.1 and Sora.
Things that go wrong on the night shift
Corrupting files: the data rots on a clock. Call it before it's gone.
Confidence wagers: stake part of your points on how sure you are.