Upload the physical certificate and we will automatically detect any tampering using AI. No account required.
Forensic AI Verification
Detects name / date / course tampering automatically
Best results: Upload the original PDF certificate for highest accuracy. If using a photo, ensure the entire certificate is in frame, well-lit, and the footer text is sharp.
Drop certificate here or click to upload
PDF, JPEG, PNG, WebP — up to 10 MB
How verification works
1. AI field extraction
Our AI reads every field from the document and converts it into structured data for comparison.
2. On-chain lookup
The extracted hash is queried against the CertChain smart contract on Polygon Amoy.
3. Field-by-field comparison
Every field is compared against the immutable registry. Any mismatch is flagged immediately.
Even if this website is cloned, the Polygonscan link independently proves whether a hash exists in the real smart contract.