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quinncomyesterday at 7:03 PM19 repliesview on HN

I love that it has a feature to prove images came from the real world:

> Users can now prove the authenticity of a photo taken on iPhone 18 Pro models with Apple Reference Image, powered by the new sensor in the Main camera that can sign every pixel it sees. When a photo is taken in the new Reference mode, the camera captures signed sensor data that Private Cloud Compute develops into an unalterable reference image.5 Reference images can be viewed in the Photos app alongside the main image, like a digital negative, to visually compare the two assets and determine if any edits were made. APIs are available in iOS, iPadOS, and macOS 27 for third-party apps to enable viewing of these reference images.


Replies

andrewmutzyesterday at 7:56 PM

Can't I just point my camera at an AI generated image? And it will get the stamp of authenticity?

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QuantumNomad_today at 8:26 AM

> Users can now prove the authenticity of a photo taken on iPhone 18 Pro models with Apple Reference Image, powered by the new sensor in the Main camera that can sign every pixel it sees.

Will this also work with third-party camera apps like ProCam?

https://www.procamapp.com/

https://itunes.apple.com/us/app/procam-5/id6787737491?mt=8

Lockaltoday at 8:04 AM

> I love that it has a feature to prove images came from the real world

Congrats to Apple achieving nation-wide tracking, embedding some kind of yellow dots[1], but this time this time this is based on strong cryptography and non-removable, targeting people who don't use AI under the slogan "we are fighting AI fakes", but people still "love the feature".

[1] https://en.wikipedia.org/wiki/Printer_tracking_dots

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sheepyblokeyesterday at 9:56 PM

On the opposite side, this read to me like there was so much image processing going on in the background and off device that they felt like they needed to prove that there was a real image backing the creation, and that it was not all AI. It really begs the question of what the extent is of image processing.

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cavoiromyesterday at 7:34 PM

Yes, this is really a "Pro" feature, while C2PA exists, not many consumer products have it, iPhone will be the game changer for reporters.

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spacebanana7yesterday at 8:58 PM

The weakness of this is that a person can take a picture of a high resolution screen or print.

We really need Apple to open up true depth APIs to make forgery non trivial.

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bluber84today at 8:52 AM

This feature is not enabled in the eu

whatever1yesterday at 8:41 PM

I wish next year for videos too.

We really need it for journalism. Otherwise we will not know what is real and what fabricated with ai.

FireBeyondyesterday at 8:46 PM

Canon's original high end digital models had this as a feature, that your images could be digitally signed in-camera based on raw sensor data. Primarily for law enforcement. Obviously a far broarder use case, now.

Melatonictoday at 3:08 AM

So does that mean only the main sensor can do this ?

bilekastoday at 3:26 AM

That's more of a software feature..

tclancytoday at 12:31 AM

That smells like "show don't tell", but who knows.

no_timetoday at 6:57 AM

Feels like the only ones who'd benefit from this are AI companies that are afraid of tainting their post 2023 datasets with their own slop.

On the other hand if this becomes mandated by law I can see it become treacherous for endusers.

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siva7yesterday at 11:16 PM

A mobile phone.. an internet communicator.. a music player.. don't you get it? well, steve, actually 18 years later it's a .. camera

ikr678today at 5:14 AM

Cynical take: A single photo to now consume up 50mb of cloud storage, adding to the demand for more data centers that supported the creation of this authenticity issue in the first place.

xatttyesterday at 7:55 PM

*Not available in EU or China.

I wonder what the common thread is.

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lern_too_spelyesterday at 9:20 PM

Finally. Android phones have been shipping with C2PA since last year, so it's great that the final holdout has capitulated, though with its own set of nonstandard tools.

https://c2paviewer.com/articles/samsung-galaxy-s25-c2pa

https://security.googleblog.com/2025/09/pixel-android-truste...

https://c2paviewer.com/supported-devices

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Frost1xyesterday at 11:31 PM

How will this work against rehosted images on all the platforms people actually share photos from? It’s a good feature but many popular services apply metadata stripping and basic image adjustment before resharing. That seems like the place where people would actually want to verify authenticity.

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