CanonProof transforms digital evidence into cryptographically signed authenticity certificates. Every verification explains why a file is authentic or manipulated — in a format built for journalists, investigators, and the courts.
Typical verification time: < 3 seconds · No install, fully browser-based.
This is the type of JSON you receive via the API or UI after a verification.
{
"label": "AUTHENTIC",
"score": 98,
"confidence": 0.97,
"sha256": "e5c1…a4bd",
"mediaType": "image/jpeg",
"certificateId": "CP1-9QF2-7K2M-1A0X",
"verifyUrl": "/certificates/CP1-9QF2-7K2M-1A0X"
}
Verify a File Now
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In a world where deepfakes, AI-generated media, and digital manipulation are accelerating, trust in evidence has collapsed. Screenshots can be faked, images edited, and documents forged — often indistinguishably.
CanonProof was created to restore that trust. We act as a neutral, cryptographic authority that certifies digital authenticity with transparency, ensuring that truth can still be proven in the digital age.
AI-generated content is rising exponentially. Yet the majority of digital evidence in disputes, journalism, and claims is still submitted without any integrity checks.
Every verification follows a rigorous, auditable, and repeatable workflow.
Upload your file — image, video, audio, or PDF. CanonProof fingerprints it using SHA-256 and detects media type instantly.
Our forensic engine extracts metadata, compression patterns, EXIF plausibility, and AI-generation indicators to assess integrity and tampering risk.
Weighted scoring assigns one of four labels — AUTHENTIC, LIKELY AUTHENTIC, INDETERMINATE, MANIPULATED, along with a confidence level.
The results are ES256-signed into a tamper-proof JWS certificate with a public verification URL and cryptographic fingerprint.
Under the hood, CanonProof combines forensic analysis, AI-based detection, and modern cryptography to deliver results you can stand behind in court, in print, or in front of a regulator.
CanonProof runs a battery of low-level checks on each file, including:
Our models look for signatures of synthetic generation and heavy editing — from GAN-like patterns to speech synthesis artefacts and frame-level inconsistencies.
The result is an AI-likelihood score you can use to challenge or corroborate claims around deepfakes, voice clones, and synthetic imagery.
Every verification produces a signed JSON Web Signature (JWS) object, using ES256 and CanonProof’s root keys.
Every certificate includes a public verification URL (for example: /certificates/CP1-9QF2-7K2M-1A0X)
where anyone can confirm the authenticity and see the signed result.
GET /certificates/CP1-9QF2-7K2M-1A0X → status: AUTHENTIC → signedJws: <compact JWS> → indicators: [...]
CanonProof provides the missing trust layer for the world’s digital evidence.
Each certificate is cryptographically signed and timestamped, providing verifiable authenticity for courts, regulators, and internal investigations.
Anyone can independently confirm the integrity of a CanonProof certificate via its unique verification URL and signature — no black box, no trust-me claims.
CanonProof’s authenticity score can serve as a trust signal for AI moderation systems, provenance tagging, and content governance pipelines.
Whether you upload one file or one million, each verification includes:
A clear classification (e.g. AUTHENTIC or MANIPULATED) with a numeric score and confidence level.
Human-readable indicators showing which forensic checks passed, failed, or raised suspicion — ready to paste into a report.
A SHA-256 hash that uniquely identifies the file so you can prove the exact bytes that were verified.
An optional public verification page you can share in filings, reports, or articles for independent confirmation.
CanonProof adapts to the way you work — not the other way around.
Use CanonProof as a standard step in your evidence intake.
Automatically verify photos, documents, and uploads at the point of claim.
Build CanonProof into your publishing or moderation workflow.
Traditionally, verifying authenticity required specialist tools, training, and hours of manual work. CanonProof brings that capability to every investigator, journalist, and analyst — in seconds.
You don’t need to be a forensic expert to get forensic-grade answers.
CanonProof is trusted wherever authenticity, compliance, and truth are critical.
| Sector | Need | Example Use | CanonProof Value |
|---|---|---|---|
| Law Enforcement & Forensics | Digital evidence chain of custody | Verify mobile uploads or CCTV footage | Tamper detection + court-admissible certificate |
| Insurance & Claims | Fraud prevention | Verify accident or damage photos | Authenticity scoring prevents staged claims |
| Media & Journalism | Deepfake & misinformation defense | Verify source footage before publishing | Fast authenticity check for edited or AI-generated media |
| Legal & Compliance | Regulatory integrity | Certify attachments in filings | Immutable audit record & signed proof bundle |
| Finance & KYC | Digital identity verification | Verify selfies & ID documents | Prove originality of uploaded documents |
| AI Detection & Governance | Synthetic media classification | Detect AI-generated content | CanonProof score = trust input for AI pipelines |
| Healthcare & Science | Clinical data integrity | Verify authenticity of lab images or scans | Tamper-proof archival certification |
| Education & Research | Academic integrity | Validate research photos & datasets | CanonProof citation integration |
| Intellectual Property / NFTs | Originality certification | Verify digital art provenance | CanonProof = authenticity attestation |
| General Public | Fact-checking & transparency | Verify viral videos or claims | Free public verification portal |
A few quick answers before you start.
CanonProof is built with privacy in mind. Files are processed for analysis and certificate generation, and we retain only what’s necessary for verification — such as hashes, indicators, and signed results.
No. CanonProof verifies authenticity, not truth. We certify whether a file is original or manipulated and whether it shows signs of AI generation. What the content means is still up to investigators, journalists, and courts.
Issue your first CanonProof certificate in minutes.