Protect Your Work with Proof of Date and Integrity
Get blockchain-anchored proof of your file's integrity and registration date, with certificates conforming to the C2PA standard, verifiable with any compatible tool. For photographers, photo contest organizers, creatives and businesses. Keep your original file: it is what the certificate protects.
🌱 AI itself needs authentic human content to survive: by certifying your creations, you preserve genuine training data and help save AI from model collapse.
Why it Matters
Photographers, creatives and businesses increasingly need to show when a file existed and that it has not changed. Photo contest juries also need help sorting entries. CheckHC provides proof of date and integrity, and AI analysis to help spot generated or manipulated images.
Your Solution
Proof of your file's integrity and registration date
C2PA Conforming Product, Assurance Level 1
Solutions by Use Case
Focused tools built on the same certification engine — pick the one that matches your need.
Free Deepfake Detector
Check images for signs of AI generation. Video in beta.
AI Image Detector
AI analysis to help spot generated or manipulated images.
Truepic Alternative
A C2PA conforming product at assurance level 1.
For Journalists
AI analysis and C2PA reading to support editorial checks.
Prove Your Photo's Integrity and Date
Proof of your file's integrity and registration date, anchored on the blockchain.
NFT Certification
NFT photo offers include AI analysis and C2PA. Digital Vault (documents) includes neither.
Image Certification and GDPR
What is stored, and what stays permanent.
How Your Proof Works
Three elements that work together, each with clear limits.
AI Analysis to Support Your Judgment
AI analysis helps spot generated or manipulated images. It gives an estimate, not a proof. Video analysis is in beta.
Proof of Integrity and Date
Your file's SHA-256 fingerprint is anchored on the Solana blockchain: proof of its integrity and registration date. A JSON certificate is stored permanently on Arweave. Outside NFT offers, the image itself is not stored: keep your original file, it is what the certificate protects.
C2PA Conforming Certificates
CheckHC is a C2PA conforming product at assurance level 1 (software signature). This level means CheckHC correctly signs what it declares. It does not guarantee that an image was taken by a camera.
What You Get
A certificate that stays verifiable even if CheckHC disappears.
Your Certificate
You download a PDF Certificate of Existence containing your file's SHA-256 hash, the Solana transaction signature and QR codes linking to the blockchain record and the permanent Arweave certificate.
Free Verification
Check CheckHC certificates and read the C2PA manifests of any image with the free verification tool. Certificates can also be verified with any compatible tool.
Permanent Certificate, Paid Service
The certificate is permanent; the certification service is paid. Try it with 10 AI analyses offered once per account and 40 welcome credits, no credit card required.
Ready to Protect Your Work?
Prove the integrity and date of your files.
Start Certifying NowFree trial: 10 AI analyses offered once per account + 40 welcome credits. No credit card required.
Project Roadmap
Project Foundation
Completed - December 2024
- Project initialization
- Team formation
- Term sheet signed
- Initial planning
Website & Apps Launch
January 1, 2025
- Design start
- Web development start
- Internal Dev website
- Internal Alpha App
Token Plan & Setup
February 15, 2025
- CheckHC Tokens availability
- Apps Wallet integration (Phantom & Solflare)
- 10M Tokens minted
- Revoke freeze & Mint authority
Alpha Release & Community Feedback
March 15, 2025
- Alpha Web3 App public availability
- First Certificates signed on-chain
- Alpha access from website
- Initial Community Feedback Loop
Final Tokenomics & Vesting
April 25, 2025
- Detailed Tokenomics Published
- Clear On-Chain Vesting Schedules
- Vesting Setup (Streamflow)
- Vesting contract addresses published
- Communication & Community AMAs
DEX Listing & Liquidity Lock
April 29, 2025
- Raydium Liquidity Pool Creation
- Internal Readiness for DEX Listing & Lock
- LP Tokens Locked (12Months->36Months)
- $CHECKHC publicly accessible for App utility
Marketing Kick-off & Community Channels
May 2025
- Discord server & X (Twitter) account launched
- Community Support for token acquisition & app usage
- Initial Marketing Campaigns
- Alpha public testing phase completed
UX Enhancement & Ambassador Program
Q3 2025
- Ambassador Campaigns
- Enhanced website UX with mobile optimization
- Aspirational brand messaging transformation
Ecosystem Expansion & Integrations
Q4 2025
- Public Beta Version released
- C2PA conforming product, assurance level 1
- Document Storage certification expanded
- Video analysis open beta (certification coming soon)
- AffiliateLink system for ambassadors & influencers
- n8n Nodes published on npm registry
- Automation integrations (n8n, Zapier-ready)
- AI image analysis
Product Hunt Launch
January 5, 2026
- Product Hunt official launch
- Press & Media coverage
- Early adopter acquisition campaign
Community Growth & Platform Adoption
Q1 2026
- Liquidity Pool monitoring & stability management
- Community Growth (engagement programs, content creation)
- User Acquisition & Retention optimization
- Beta feedback integration & iteration
Solutions Expansion & SEO
Q2–Q3 2026
- Dedicated solution pages published (EN/FR)
- Free tier: 10 AI analyses offered once per account + 40 welcome credits
- Solutions navigation & site-wide internal linking
- Video analysis (beta)
Governance & Strategic Partnerships
Q4 2026
- Partnership explorations
- Community Governance Setup & Launch
- Explore further strategic partnerships
- DAO framework implementation
Platform Maturity & Global Expansion
2027 & Beyond
- Enterprise API & SDK release
- Industry Standard certification body recognition
- Third-party Security Audits
- Multi-language support (ES, DE, PT, JP)
- Mobile native apps (iOS & Android)
Our Team
Confidential
AI & Blockchain Lead
Gilda H...
Customer Relations
Alexandre D. L...
Sales Lead & Media Expert
Romane P...
Community Manager
Josephine P...
Social Network Lead