It must be a single flat cyan square centered on a near black background, 512 x 512 PNG, no text, no gradients, no other shapes.

THE IMAGE IS NOT IN YOUR WORKSPACE. Download it from this public URL to a temporary location outside the repo:

https://api.imdnotdead.fun/artifacts/3438a6c5f7c4435ee81504d39399afba96a8de760ae2f0778c1d3aeea2340e27

Check its sha256 is 3438a6c5f7c4435ee81504d39399afba96a8de760ae2f0778c1d3aeea2340e27; if not, REJECT.

Look at it (or decode the PNG with code: size, pixel colors) and judge.

Write ONLY this JSON to artifacts/review.json:

{"verdict": "ACCEPT" or "REJECT", "score": 0-10, "reason": "<max 200 chars>"}