Captilo —Private Picture.Public Proof.
Transforms any smartphone into a tamper-proof evidence device.
Privacy-first photo authentication for the masses. Every capture is cryptographically sealed, blockchain-anchored, and screened by intelligent fraud detection — at a cost of pennies per proof. Your photos never leave your device. Only the proof goes public.
In the age of AI, photos prove nothing
Any image can be AI-generated, its metadata stripped, its timestamps forged, or its origin fabricated. Insurance fraud costs $80B annually. Construction disputes hinge on easily backdated photos. Legal evidence is challenged because EXIF data takes seconds to modify. The world needs photos that can mathematically prove their own authenticity.
AI Generation
Photorealistic images of accidents, damage, and documents that never existed — generated in seconds, undetectable by human eyes.
Metadata Forgery
EXIF timestamps, GPS coordinates, and device info can be stripped or rewritten with free tools. Traditional metadata is worthless as evidence.
Screen & Print Fraud
Photographing screens or printed documents to create "authentic" captures. Standard cameras can't distinguish a screen from the real world.
Five proofs, one shutter press
Every photo captured through Captilo simultaneously generates five independent, cryptographically-linked proofs — all before you see the success screen.
Authorized
Biometric auth via Face ID or fingerprint. A cryptographic commitment binds the device owner to this capture.
When
EU-qualified eIDAS timestamp from a certified TSA. Legally binding proof of time.
Where
GPS coordinates, cross-checked for mock-location signals on Android. Location bound to the cryptographic fingerprint.
What Device
Device model, OS, camera facing, and capture mode permanently recorded.
Untampered
SHA-256 of raw bytes + swap, screen/print, and device-attestation checks. Any pixel change breaks the hash.
Verify any Captilo proof
Anyone can verify a proof's authenticity — no account, no app, just math.
Built on open standards, not trust
Every layer is independently verifiable. You don't need to trust Captilo — you only need to trust mathematics and cryptography.
Sonic Network
EVM-compatible blockchain with sub-1-second finality. Two hashes per proof: pictureHash (raw photo bytes) and metadataHash (14 canonical fields).
eIDAS Timestamps
EU-qualified timestamps from a certified Greek APED TSA. Legally binding proof of time under EU eIDAS regulation — accepted across all EU member states.
Biometric Proofs
Biometric templates never leave the Secure Enclave. Each photo receives a unique cryptographic commitment binding the authenticated user to the specific capture.
Multi-Layer Attack Detection
Independent checks for file swapping, screen/print re-photography (FFT moire + pixel-grid + motion analysis), mock locations, and compromised or emulated devices, run before submission.
C2PA Content Credentials
Captilo is a C2PA Conformant Generator Product (Max Assurance Level 1). Photos exported for social sharing are embedded with Content Credentials following the C2PA standard by Adobe, Microsoft, and Google.
Privacy-First Design
Photos never leave your device. Only cryptographic hashes are transmitted to the blockchain. The original image is yours alone — forever.
C2PA native. Provenance built in, not bolted on
Captilo doesn't just sign images — it captures the proof at the moment of creation. When you export a verified photo, the C2PA manifest carries the entire chain: blockchain anchor, eIDAS timestamp, biometric commitment, fraud detection results, and device context.
Capture-time provenance
C2PA manifests begin at the shutter press, not at export. Every step from biometric auth to blockchain anchoring is included.
Blockchain-backed assertions
Captilo's assertions are independently verifiable on the Sonic blockchain — adding immutability that file-based signing alone can't provide.
Fraud detection metadata
The C2PA manifest includes screen detection confidence, motion analysis, and integrity scores.
Officially certified
Captilo is a C2PA Conformant Generator Product (Max Assurance Level 1), verified by the Coalition for Content Provenance and Authenticity — recognized by Adobe, Microsoft, Google, and the broader Content Authenticity Initiative ecosystem.
Proof matters everywhere
Anywhere a photo needs to be trusted — that's where Captilo works. These are the sectors where verified imagery changes outcomes.
Insurance
Eliminate fraudulent claims documentation. Policyholders submit blockchain-verified accident and damage photos directly to claims systems.
Dating & Social
Verified profile photos that prove they are recent and authentic. Reduce catfishing, build platform trust, and give users confidence.
Construction
Timestamped progress documentation that proves project milestones. Protect against liability claims with immutable photographic evidence.
Legal
A defensible technical record — cryptographic integrity, blockchain anchoring, and qualified timestamps — to support chain-of-custody arguments and evidence workflows.
Journalism
Verify photojournalism at the source. Combat misinformation with photos that carry their own proof of authenticity.
Supply Chain
Verified shipment condition at every handoff point. Proof-of-delivery that can't be disputed. Quality control that withstands audit.
Building a case for insurance, legal, or audit use?
See how each capture step maps to a chain-of-custody argument.
Digital trust starts with proof
Whether you're an enterprise needing verified evidence at scale or a developer passionate about content authenticity — we'd love to talk.