Use Case
Location-Locked Reviews
Only people who physically visited can leave a review.
The Problem
Location-Locked Reviews
Fake reviews are a multi-billion dollar fraud industry. Businesses buy 5-star ratings, competitors sabotage rivals with fake 1-stars, and consumers cannot trust what they read. Platforms play endless whack-a-mole with review farms.
The Solution
7aychain
7aychain gates review submission behind a proof of physical presence at the venue during a valid time window. Reviewers stay anonymous — but each review is backed by verified on-chain proof that the person was actually there.
Key Features
1
Physical presence required to post
2
Anonymous but verifiable
3
Immune to review farms and bots
4
Drop-in SDK for any review platform
Build on Proof of Presence
The devnet is live. Start shipping bot-proof applications today.