Vlike

demo screen shot
Contracts
Tokenomics

Inspiration

Last year, YouTube removed the dislike count number from all of its videos so users can no longer see how many dislikes a video has received. YouTube claimed they hid the dislike count to protect smaller creators, but this reason is not convincing.

So we decides to build a decentralized like/dislike(or more generally, a rating) feedback system which is open and accessible to anyone. It can be integrated into other web3 dapps as a feature.

Our long-term goal is to propose a solution to tokenize users' feedback in content platforms.

What it does

The service providers/developers and use the rating factory contract to deploy their own rating contract, which can keep track of users' rating data on any item/content.

Owners of rating contracts can choose to enable the token system that tokenizes users' ratings. We design the tokenomics to encourage viewers to give good feedback.

How we built it

contracts: a brownie project, with some dependencies of openzeppelin library (ERC20, owner, etc) and chainlink vrf.
frontend: a simple react app with web3.js.

Challenges we ran into

Teamwork for contracts development is difficult because local deployment always encounters various environmental issues.
Working on the tokenomics is really hard. Designing a secure and fair token system to tokenize users' ratings is complex and requires a lot of math work.
Debugging errors in smart contract is frustrating.

Accomplishments that we're proud of

First time we participate such a hackathon project. It's amazing working with people on the other side of the world.

What we learned

Tokenize users' social impact is not an easy task. There is still a lot of web3 infrastructure need to be done to push things forward.

What's next for Vlike

Extend the current rating system(like/dislike) to more general scenarios(1-5 star rating, etc).
Optimize the tokeconomic solution. The current cost for users is too high.
Make the rating contract more configurable for service provider.