Gate 13 — Not Tampered
The receipt image must not show signs of digital manipulation — edited totals, pasted dates, photoshopped text.
What this gate checks The receipt image must not show signs of digital manipulation — edited totals, pasted dates, photoshopped text.
Understanding why a submission passed or failed
1 min
Find the failed gate, fix the issue, then resubmit
What this gate checks
The receipt image must not show signs of digital manipulation — edited totals, pasted dates, photoshopped text.
Under the hood: Image forensics scoring on a 0–1 scale: edge inconsistencies, copy-move artifacts, double-JPEG compression patterns. Scores at or above 0.55 fail.
Common failure reasons
- Receipt was edited in Photoshop, Photopea, or similar
- Date or total was altered after the original photo
- Composite image — multiple receipts merged together
How to pass this gate
Submit the original photo straight from your camera. Do not crop heavily, do not edit, do not enhance. Lightly correcting brightness is fine.
At a glance
- Category: Receipt Verification
- Blocking: Yes — failing this gate rejects the claim
- Typical duration: ~10s
- Policy engine id:
tamper_check - Pre-flight checklist item: "My receipt photo is unedited and untampered"