Request a proof from someone who has no account.
It comes back to you sealed. Your own tool decides, with nobody squinting at a photo. Sandbox: 30 days, 100 proofs, no card.
Request a proof from a third party →Capture proof · Photos and videos
Photo proof that holds up with a third party.
Captured live, sealed on receipt, tied to the device by its attestation. Whoever receives it verifies it from a link, with no account.
The demonstration proof, as seen by whoever receives a link: adjuster, case handler, judge. How to read it
Seal your own photos and videos.
Share a link anyone can verify. A job site, a flat inventory, a delivery: the same proof organisations get, one at a time. 3 free proofs every month.
Scan to install.Where a photo has to hold up
The situations where the image comes from somewhere else, and you still have to decide.
- InsuranceThe policyholder captures from a link. The simple case goes straight through.→
- ConstructionThe snag is dated, located, tied to the device. The dispute stops at the photo.→
- PropertyThe check-in inventory is sealed on the day of check-in, not contested on the day of check-out.→
- LogisticsThe parcel at delivery, with a time and a place nobody rewrites.→
Three moves
The move, not the technique. What happens in between is described on the page that explains a proof.
Live, inside the app.
Never from the gallery. The viewfinder guides you: level, UTC time, position lock.
The photo, its date, its area and its device are bound together.
Nothing moves after that. You choose whether the link also gives the original file.
One link. Every check says what it measured.
Whoever receives the link opens the verification page. No account, nothing to install.
What is in a proof
Every check says what it measured. Or that it could not. A missing check is named, with its reason, never hidden.
- Device and appThe attestation the device supplied on submission, and at what level.Verified
- File integrityThe sealed fingerprints, and a C2PA manifest for an attested capture.Verified
- Sealing dateAn independent timestamp, anchored in Bitcoin.Verified
- Requested placeOnly when an organisation asked for a place: the page says whether the captured place matches.Not measured
- Area · near Argenteuil · to within ~11 kmA fact recorded at the shutter, not a check.Fact
VerifiedFailedNot measured, with its reasonIn progress while the Bitcoin confirmation completes
In addition, an analysis looks for a screen re-capture or a paper print. It flags, it does not count: it says what it noticed, or that it could not conclude on that device.
A proof posted through the API, with no attested device, shows it: the page displays “Not measured” for the device. One channel does not lend its trust to another.
Read a proof block by block, on the demonstration proof.
What a proof establishes
- The latest date at which the file existed.
- The area recorded at the shutter.
- The attested device and the originating app.
- The files, intact since sealing.
- The sensor, when the device has been enrolled. As a bonus, never alone.
What it does not establish
- That the scene is genuine in itself. A staged scene photographed live is still a staged scene.
- What the proof is worth in your dispute. That judgement belongs to whoever receives it.
It is written on every verification page, under the verdict: the page establishes the origin and integrity of the capture, not the truth of the scene. We would rather have a proof that states its limits than a promise no proof can keep.
Three ways to capture, one proof
The photo or video does not always come from you. It comes from your field engineer, your policyholder, or your own application. All three paths produce the same proof, verified the same way.
The field app
Live capture, never from the gallery. With no network, the proof waits for a connection and goes on its own, with no duplicate.
In detail →The capture link
You send a link. The recipient installs the app (iPhone or Android), captures on site, and the proof comes back to you.
The full flow →The API
Post a proof from your back office, receive the decision through a signed webhook. With no device attestation, and the verification page says so.
For developers →What remains without us
What if Evidiq disappeared?
Your proofs would survive. Every file carries its verification items, readable with public tools, without us.
C2PA manifest (attested captures)The open provenance standard, readable by tools other than ours.
Bitcoin anchorAn OpenTimestamps file, re-verifiable with public tooling or your own Bitcoin node.
Self-contained PDF fileThe verdict, the items and the method to re-check everything, in one file to archive.
Straight questions, straight answers
Does this replace a bailiff’s report?
No. In France a commissaire de justice is a public officer: their report carries weight because of who they are, not because of their technique. Evidiq establishes something else, and with no appointment: that this file existed at the latest on that date, that it comes from the app on an attested device, and that it has not changed since. Many situations do not warrant a bailiff but deserve better than a bare photo; that is where Evidiq serves.
Is a photo sealed by Evidiq admissible in court?
That judgement always belongs to whoever receives the proof: adjuster, case handler or judge. What Evidiq adds is what an ordinary photo lacks: a date, an area, an attested app, and the demonstration that the file has not changed since it was sealed. File integrity and the date can be re-checked by the other side, with tools that are not ours.
What if someone photographs a screen?
Capture happens inside the app, never by import: to cheat, you have to film a screen. Measurements look for that re-capture, and the verification page says what they found, or that not all of them could run on that device. These measurements earn no points: they flag, they do not decide. What decides is the origin: where the file comes from, and the fact that it has not changed since.
What happens with no network?
The capture happens anyway. It waits for a connection, then goes on its own: depending on the device, it may need the app reopened. An interrupted capture never creates two proofs nor two charges.
Other questions are answered where they come up: what the person capturing for you sees, how we know the photo really comes from that phone, what happens to your data.
Start with one proof.
An organisation opens the sandbox, with no card. An individual installs the app, with three free proofs every month.
Hosted in France Encrypted at rest Non-extractable signing key, held in a KMS Candidate to the C2PA conformance program No cookies, no third-party trackers What proves it