iOS 27 Hints at 'Apple Reference Image' Photo Authentication

Apple is developing a new photo provenance system called Apple Reference Image, which will verify if an image was captured using an iPhone. The feature is hinted at in a privacy disclosure included in iOS 27 beta 5, but it has not been released yet. The feature will include a "Reference" mode in the Camera app, allowing users to capture images with embedded provenance data in the metadata.

To authenticate an image, users can tap the Reference badge, which sends the image's raw data, sensor signatures, capture time frame, and unique hardware identifiers to Apple's Private Cloud Compute (PCC) servers. PCC uses this information to confirm if the camera captured the photo, assigns it a unique ID, and returns an authenticated version to the user's device.

Apple receives sensor data, a hash, and assessment results, but not the raw photo. The company can choose not to authenticate images from compromised sensors and can revoke past authentications. Authenticated photos can be viewed on various Apple devices, and a Reference badge can also be clicked on a Mac. The feature is aimed at professionals such as photographers, journalists, and others who need to verify images.

The system offers hardware-backed evidence that an image was captured using a physical camera sensor, which is crucial in an era when AI can generate realistic-looking images. The authentication system is similar to C2PA Content Credentials used by camera manufacturers like Leica, Sony, and Nikon, and Google's Pixel 10 lineup.