The Global Trust Layer for Digital Content
Seal your content with cryptographic proof of authenticity. Detect tampering and duplication, verify its integrity, and issue signed verification reports anyone can trust.
Total Verifications
and counting
Content Signed
across all content types
Avg Human Confidence
across all detections
Recent Verifications
research-paper-v3.pdf
sig: 8f3a…c91e
blog-post-draft.doc
sig: 4b12…9a0d
press-release-final.pdf
sig: e77c…1f3b
How It Works
Four steps to content authenticity
A simple, reliable process to verify any piece of digital content.
Secure Ingestion
Upload any document through a secure, encrypted pipeline.
Content Analysis
We analyze similarity, duplication, and AI-generation signals to assess authenticity.
Cryptographic Report
Get a SHA-256 hashed, RSA-4096 signed verification report.
Verifiable Sharing
Share verification links or embed trust badges anywhere.
Instant Lookup
Verify by text or hash
Paste any text or a SHA-256 hash to instantly check if it exists in AuthProof. No account required.
Text detected - will be hashed and looked up
Why AuthProof
Built for trust at scale
The infrastructure behind the world's most trusted content verification platform.
Cryptographic Proof of Authenticity
Every document is SHA256 hashed and RSA-SHA256 signed at upload - creating immutable, legally defensible evidence of origin and authorship.
Full Audit Trail
Complete chain-of-custody from upload to signed PDF. Every signature, key usage, and provenance record is logged, reportable, and independently verifiable.
Enterprise-Grade Security
NaCl-encrypted key storage with RSA-SHA256 document signing. Private keys never leave the system unencrypted.
Global Infrastructure
Deployed across multiple regions for low-latency verification from anywhere in the world.
Real-Time Processing
Average verification time under 30 seconds. Process thousands of documents per minute.
Multi-Model Analysis
Proprietary ensemble of detection models for the highest accuracy across content types.
Pricing
Simple, transparent pricing
Start free. Scale as you grow. Enterprise options available.
Need more? Save 20% with yearly billing →
Ready to verify your content?
Join thousands of journalists, researchers, and enterprises who trust AuthProof for content authenticity.