epoch

epoch is a private prediction market on Solana where the direction and size of each bet stay encrypted throughout matching, with results recovered by multi-party computation only at settlement. It runs on Arcium's MPC network: bets are encrypted client-side before submission, the node group maintains share accounting and computes odds over ciphertext, no single party sees an individual position, and only a verifiable outcome is produced at settlement.

It addresses the two most attackable points of a prediction market, namely a large position being copied or squeezed once it becomes visible, and market makers adjusting quotes by watching order flow. Encrypted matching cuts both information channels at once, leaving only total pool size and settlement time public. Markets are mainly binary events, and odds move with encrypted shares rather than with order-book prices. A distinction from namesakes: this is the prediction market described here, not the ephemeral-rollup settlement experiment nor the intent-solver network. Its branch is private betting.