A photo that shows its origin.
Passport photo origin, from the studio's device to the municipal counter, with no central collection of photos. Built with the National Office for Identity Data (RvIG).

Pieter Den Dooven
CTO, mintBlue

Challenge
When a passport photo arrives digitally, the counter has to judge it without knowing where it came from.
Solution
A code can be embedded in the photo's pixels at capture, so later edits to the image can be spotted.
Impact
- 5Proofs of origin a photo can carry
- ZeroCentral collections of photos
- C2PASupport for the global standard for content authenticity
Digital Photos Can Be Edited
When a passport photo arrives digitally, the counter has to judge it without knowing where it came from.
- Passport photos are increasingly submitted digitally
- Digital images can be edited after capture
- Each party runs its own checks, but the results are not passed on in one way
- The counter cannot see which studio took a photo, or with which device
The Vision
“Create a chain in which every digital passport photo carries proof of where it came from: which studio took it and with what device. The counter can then judge a photo on its origin, without a central collection of photos.”
Five Proofs of Origin
Digital Watermark
A code can be embedded in the photo's pixels at capture, so later edits to the image can be spotted.
Content Authenticity Manifest
A C2PA manifest (the global content authenticity standard used by Adobe, Microsoft and the BBC) can be attached to each photo as a proof of origin anyone can check.
Photographer Credentials
The photographer can sign in with the studio's certificate, which can be revoked, so each photo can be traced to a known studio.
Anchored Record
When and with which device the photo was taken can be recorded and anchored at capture, so a later change to that record would show.
Device Attestation
The device that took the photo can count towards the photo's reliability score.
What It Delivers
Beyond Passport Photos
Signing at the source and checking at the next step works for any document whose origin matters, such as diplomas.
Know Where a Document Came From
Talk to us about documents in your chain whose origin has to be clear at the next step.