Currently reviews are vulnerable to sybil attacks and untrustworthiness, they can be abused to aritificially manipulate ratings and make brands/products/events more attractive. People are more interested in reviews of users who actually watched/purchased/went to an event.
We all know how POAPs are loved within the ethereum community, and obvisously, we are not an exception. They are a great use case of NFTs for non-financial applications.
With that in mind, we believe they are the perfect primitive to benefit from Anonymous Verified Reviews. Why:
POAPs ensures proof of attendance, therefore -> reviewer = attendee => actual valuable review To mitigate Sybil Attacks, we chose to use humanbound.xyz, which provides a unique proof of humanhood, enabling TrustPOAP to:
Ensure a review is made by an actual human Therefore, with POAPs + humanbound.xyz, trustPOAP can make sure a reviewer:
- ✅ Is an actual attendee
- ✅ Is a unique human
- ✅ Can write only one review
- ✅ Preserves user anonymity
- ✅ Is censorship resistent
Review content is saved on IPFS 🌐
Review Hashes are immutable and submitted on the Blockchain 🔒
To create a review a user needs to:
- Participate at an event 💃
- Receive a POAP from it
- Be a Human ❌👽 (have a humanbound token from humanbound.xyz)
- Cannot have previously submitted a review for this event (the transaction will fail 😉)
- That's it 🎉
Currently deployed to Polygon mainnet at 0x92d138b4994820fde926a03961d6d447ea64354a.
The website is live at https://trustpoap.com.
Navigate to the frontend directory of the project and run:
$ yarn installto install all dependencies.
Then:
$ yarn devto run a local version of the website which interacts with the real mainnet contracts.