When buying from someone online, photos don’t always confirm the item is actually in hand—or that it matches the listing. Reused photos and AI-assisted edits are becoming more common. ProofLens adds an optional proof-of-possession step: the seller completes a short guided capture that uses real-world device signals to confirm it was recorded live and screen out replays or static images. Buyers get a clear result to review before paying.
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Maker
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Built ProofLens after seeing how often marketplace deals come down to “trust the photos.” The goal is not to add friction or replace how people sell, but to offer a lightweight proof step when either side wants more confidence.
A couple of notes that may help: it supports both buyer-requested proof and seller-provided proof for a listing, and it’s meant to be fast (~20 seconds) so it works in real transactions.
Honest feedback would help a lot:
- What would make the outcome feel more credible or easier to interpret?
- Which marketplaces or categories would benefit most from this?