This exists, the standard is called C2PA, Google added support for it in the Pixel 10. I was surprised and disappointed that Apple didn’t add support for it in

This exists, the standard is called C2PA, Google added support for it in the Pixel 10. I was surprised and disappointed that Apple didn’t add support for it in the most recent iPhone! A few physical cameras are starting to support it too (https://yawnbox.eu/blog/c2pa-camera/ https://yawnbox.eu/blog/c2pa-camera/)