Been invested in FEVM space warp hackathon. Me and my teammate are building a datamarket with DAO to resolve data fraud conflict called TrustMarket. Came up with two ways to work on it:

1. With Collateral : Where the seller needs to deposit collateral more than the price of the data he/she is willing to sell, which is used to verify authenticity of the data. Buyer and seller can agree on a time window where the buyer can claim for fraud if he/she finds the data is not up to the standard as claimed by the buyer. In such a scenario seller can file a claim for fraud within the agreed time window and the dao would make a decision on the traded data and refund the buyer and slash seller's collateral along with their reputation and vice versa if the claim is malicious.

   

2. With out collateral: Where the seller does not have to deposit any collateral, following with the similar mechanism as above but for exchange for money, the repuation will be slashed, which may lead to blacklist from interacting with the contract.

   

It's getting almost close to impossible finishing the whole project since hackathon deadline is in 3 days.

Github: https://github.com/Saksham010/Trustmarket