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Deployed2026

OPAQUE

FHE prediction market with multi-outcome BTC

Live siteRepository

Stack

  • Solidity
  • fhEVM
  • Next.js
  • TypeScript

Highlights

  • ·V3 deployed, 500+ tests
  • ·Multi-outcome markets
  • ·Hourly BTC settlement
  • ·Polymarket-style UI
  • ·Permissionless matching via FHE.select

Problem

Prediction markets leak positions in real time. A whale building a side is public the moment they place the order, which moves the line against them and thins the book.

Approach

Positions and shares live as FHE ciphertexts. The market clears, settles, and pays out without revealing individual exposures. Only the aggregated price surface is public. Matching is permissionless through FHE.select.

Outcome

V3 deployed on Sepolia. 500+ tests cover multi-outcome markets, hourly BTC settlement, and the full Polymarket-style flow.