“Apple Reference Image offers a trustworthy, scalable guarantee that a reference image is what it claims to be: a real photograph, captured by a real sensor.”
The engineering looks sound and the anonymity design is better than the C2PA approach it competes with. The catch is the shipping decision. This is iPhone 18 Pro and Pro Max only, and it is opt-in, so proof that your photo came from a camera becomes a feature of the expensive phone. Everyone else keeps arguing with strangers about whether a picture is fake.