Upload a receipt and clava opens a market on the company behind the purchase. You take the protected side. Whoever disagrees takes the risk.
Spending at a company is exposure to it — you just never got paid for carrying it. clava turns the receipt into proof of that exposure and opens a market against it, so the thing that cost you money can also pay you back.
Image or text. It is read in your browser and never leaves it — only a fingerprint and the amount go on-chain.
The merchant is matched to a tokenized stock that actually trades on this chain: Apple, NVIDIA, Tesla, Meta and ten more.
−10% within 30 days, −20% within a week — whatever fits what you just spent.
You are on the protected side from the moment it opens. Anyone can take the other side, and the pot is split parimutuel.
Reward programs hand you a sliver of the company's stock. Nice — but it only pays if the company keeps climbing, and it does nothing about the money you already spent.
You get downside exposure for a fixed window instead. If the company falls hard right after you bought from it, the market pays you.
clava reads two Uniswap V3 time-weighted averages on Robinhood Chain — the stock/ETH pool and the ETH/USDG pool. Subtract one tick from the other and you have the stock's USD price, with no feed and no reporter in the middle.
A 10% fall is a fixed distance in tick space, so settlement is a comparison, not a calculation. Rebases are subtracted out, so a dividend never looks like a crash.
When the price trades through the trigger, anybody may call strike() — the contract checks the chain and decides. Payouts are pull-based and parimutuel: the winning side splits the pot.
The contract has no owner, no pause switch and no upgrade path. One-sided books refund instead of paying out, so nobody is stuck holding a market nobody wanted.