Proofshot

Capture provenance for insurance claims

Claim photos that prove themselves.

An AI editor can add damage to a photo in seconds, and genuine photos get reused from one claim to the next. Proofshot seals each photo on the policyholder's phone at the moment of capture, so anyone can check it later without trusting us.

Verify a photo
AlteredExample result

Matches a photo sealed 12 Sept 2026, 14:05, but 1 of 16 regions was changed after sealing.

Illustrated car door with a dent painted in after sealing
1 of 16 regions differ from the sealed photo: row 2, column 3.
What the Public Verifier shows for a sealed photo that was edited later. Illustration, not a real claim.

How it works

  1. Sealed at capture

    The policyholder takes the photo in Proofshot. One Face ID prompt signs it with a key that never leaves their phone, and a public ledger checks that signature before recording the seal.

  2. Checked from any copy

    Anyone holding any copy, even one compressed by a messaging app, can see when it was sealed and exactly which regions were changed since.

  3. Reused photos caught

    Carriers share fingerprints, never photos. A photo already used in another claim, at any carrier, raises a Duplicate Alert.

Don't take our word for it

Every claim on this page can be checked from public data.

What a Seal proves, and what it does not

It proves

  • A specific device key signed these fingerprints.
  • It happened within a tight, public time window.
  • Whether the image changed since, and where.
  • Whether the same picture already exists in another claim.

It does not prove

  • That the pixels came from the camera sensor. Hardware attestation is our next milestone.
  • That the scene is what the sender says it is.
  • Who the person taking the photo is, legally.