Unihedge is a decentralized prediction market for hedging fungible crypto assets (e.g. ETH / BTC), designed to solve the two classic issues in prediction markets: liquidity scarcity and trust in central operators.
Website: https://unihedge.org
App (Live on Polygon): https://app.unihedge.org
Unihedge combines a Dynamic Parimutuel Model (DPM) for unlimited buy-in liquidity with a novel Reverse Harberger Tax (RHT) on positions:
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Reverse Harberger Tax (RHT)
Market frames are time-bound. Holders self-assess a pricepon their position.
Anyone can buy it out immediately atp. The acquirer pays a one-time tax on their newp, where the tax is inversely indexed to time-to-expiry (h):- near expiry → ~100% tax (anti-squatting)
- far from expiry → ~25% tax (cheap early entry)
- decay via inverse-root curve
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Liquidity Flywheel
All RHT taxes enter a global reward pool.
At each settlement:- 10% pays winners (pro-rata by duration of ownership inside winning band)
- 90% rolls forward → compounding liquidity over time
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Market Model
Users create or join frames (e.g. 24h / 7d) and buy position-lots on outcome bands. Frames resolve via decentralized oracles (e.g. Uniswap TWAP).
No admin pricing — markets emerge endogenously, frame-by-frame.
- Unlimited Liquidity — No waiting for counterparties (unlike CDA models e.g. Augur)
- Hedger-Aligned — Cheap early entry, anti-squat at expiry
- Fully On-Chain — No operator risk, budget-balanced, built on low-fee Polygon
- Real Use-Cases — Hedge volatility or express conviction in a thin-trader environment
Currently live in testing on Polygon with multi-chain, API, and governance roadmap ahead.
| Contract | Address |
|---|---|
| Market | https://polygonscan.com/address/0x3C486b7178Eb71d50D060Dd02602aBfAcB88EA21 |
| MarketGetter | https://polygonscan.com/address/0xD8581Cc08E2afC75960DE0a304c540627Cf42D15 |
PRs welcome — open an issue first to discuss architectural / economic changes.
Security reports: please use private channels (contact via website footer).
This repository is licensed under the GNU General Public License v3.0 (GPL-3.0).
See the LICENSE file for details.