You can publish such an image, but you won’t be able to attest “this image came from my camera and is unedited”. It’ll be unsigned, so marked as “possibly edite

You can publish such an image, but you won’t be able to attest “this image came from my camera and is unedited”. It’ll be unsigned, so marked as “possibly edited” the way HTTP websites are marked by modern browsers as “possibly insecure”. The whole point is provenance chain - not to prevent any editing whatsoever or establish “DRM” that forbids the use of all images from a camera or something.