Introduction
Invisibook is a decentralized privacy order book project. It is built on Ethereum L1 and achieves on-chain matching, off-chain settlement, and on-chain verification through a combination of MPC (Multi-Party Computation) + ZK (Zero-Knowledge proofs).
In Invisibook, the trading instruments and quoted prices are public, but the order quantities on-chain are in ciphertext form. The public and counterparties can only execute trades — they cannot discover the other party’s position size (even using AI or quantitative trading algorithms). This protects traders’ privacy and prevents reverse engineering of positions, front-running (rat trading / insider trading), and various forms of MEV that erode large profits.
