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Forensic media authentication
Evidence you can stand behind.
Synthetic media has reached the courtroom. Attestor examines photographs, video and audio for signs of AI generation and manipulation — and gives you a reproducible, court-ready report with a verifiable chain of custody.
Built for the people who carry the burden of proof
Litigators
Challenge or defend disputed exhibits — a photo tendered in a family matter, a voice recording in a commercial dispute, footage in a criminal brief. Attestor gives your challenge technical footing, in language a court can follow.
Investigators
Triage incoming material fast. Licensed investigators use Attestor to screen media before it enters a report, flagging items that need a full examination and documenting the ones that pass.
Insurers & compliance teams
Claims arrive with photographs. Some of them were never taken. Screen claim media at intake and escalate anomalies with a documented basis, not a hunch.
The examination method
Three stages, every timeIntake & custody
The file is hashed (SHA-256) the moment it enters Attestor. Every subsequent action — analysis, export, access — is appended to a tamper-evident custody log. Your exhibit stays exactly as received; all work happens on verified copies.
Multi-signal examination
No single test decides authenticity. Attestor runs independent signal families — provenance and Content Credentials (C2PA) verification, metadata consistency, compression and re-encoding history, pixel-level error analysis, and screening for statistical artefacts characteristic of generative models — and reports each finding separately, with its confidence stated.
The report
A plain-language findings summary for the reader, a technical appendix for the expert, and the full custody log for the record — exported as a sealed PDF with embedded hashes so the report itself can be verified later.
Independent validation, in the open
A tool used in legal proceedings should not ask to be taken on faith. Attestor's examination methodology is documented in a public white paper, and we are engaging university research groups in digital media forensics to test it independently — on their datasets, on their terms, with results published whatever they show.
Read the methodology: Attestor Technical White Paper (PDF). Research groups interested in evaluation partnerships: admin@attestor.online.
Pricing
All prices AUD, ex GST · indicative, fixed at launchProfessional
Solo practitioners and licensed investigators. Unlimited examinations, full reports, custody logging, priority email support.
Chambers
Firms and agencies. Ten seats, shared case files, matter-level access control, examination review workflow.
Single examination
One exhibit, one full examination and sealed report. No subscription. Suitable for a one-off matter.
Nothing is charged today. Billing will be handled by Stripe inside the Attestor application once accounts open, and access is provisioned after a short verification of professional standing — this keeps the examiner pool credible, which protects the weight of every report we issue.
Register your interest
Tell us who you are and what you need. Attestor is not open for examinations yet — we are verifying professional standing ahead of launch so accounts can be provisioned the day it opens, and we will write to you then.
What Attestor is, and is not
- Attestor's findings are probabilistic, not verdicts. Reports state what was found, the confidence of each signal, and what could not be determined.
- Attestor is a tool for professionals. It supports expert analysis and testimony; it does not replace them, and no report should be tendered as a substitute for a qualified expert where one is required.
- Absence of detected artefacts is not proof of authenticity, and detection of anomalies is not proof of fabrication. The report language reflects this, deliberately.
- Exhibit files are encrypted at rest, never used to train models, and deleted on your instruction — permanently, custody log excepted.