BlockFact Documentation
Open-source media authentication with blockchain verification
Quick Start
Get up and running in 5 minutes
React Native SDK
Build mobile apps with BlockFact
API Reference
Complete API documentation
.facti Format
Learn about the file format
What is BlockFact?
BlockFact is an open-source alternative to Truepic that provides blockchain-verified media authentication at $0.01 per verification (1,500x cheaper than competitors).
Key Features
- 🔐 Camera-Only Validation - Only accepts images from camera devices
- 📦 .facti Open Format - Open standard file format
- 🔗 Blockchain Verification - Immutable proof on Starknet
- 🛡️ Zero-Knowledge Proofs - Privacy-preserving verification
- 💰 Pay Gas Only - No API fees, just blockchain gas
Use Cases
- 📰 Journalism - Verify news photos and videos
- 🏥 Insurance - Prevent fraud with verified claims
- ⚖️ Legal - Admissible evidence with blockchain proof
- 🏢 Enterprise - Compliance and audit trails