Quill's Thoughts
Proof-of-purchase checks that do not punish genuine users
POPSCAN can reduce fraud pressure while keeping participation rates healthy, if validation is layered and feedback is plain.
POPSCAN
Product notes
22 Feb 2026
6 min read
Design for intent first
Most participants are genuine. The flow should assume honest intent while maintaining enough control to identify edge-case abuse.
Layered validation beats single hard gates
A single strict gate raises false rejections. POPSCAN uses progressive checks so uncertain cases are escalated, not automatically discarded.
- Product and barcode consistency checks
- Receipt pattern validation for known fraud signatures
- Manual review path for borderline cases
What to monitor weekly
Track rejection reason mix and re-submission success. If one reason spikes, adjust the rule set before the promotion suffers.
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