User verification
Document fraud detection
Find edited, spliced and reused documents.
Runs on the ID front and back, proof of address and the selfie. Results are in each file's forensics checks.
| Check | Catches |
|---|---|
| File metadata | Documents saved by editing tools rather than the issuer's system |
| PDF history | Files re-saved after issue, added text boxes over the real details |
| Error level analysis | Pasted or spliced areas in photos and scans |
| Exact file reuse | The same file sent before, by any user |
| Similar image reuse | The same ID photo or bill template under different names |
| Selfie vs document | A selfie that is a photo of the ID |
| Screenshots and generated images | Images with no camera data or the wrong resolution |
Reasons start with the file they relate to, such as doc_front:file_reused or poa:ela_tamper_regions.