GETTING STARTED

Overview

PolyShield is a zero-knowledge privacy vault for Polymarket, live on Polygon mainnet. It lets you bet on Polymarket without your wallet ever appearing on the trade — while keeping full, self-custodial control of your money.

Polymarket runs on a public order book. Every order, fill, and settlement is permanently on-chain and tied to the address that signed it. Anyone — an analytics firm, a counterparty, a journalist — can pull your wallet's entire betting history and net position. For most traders that linkage is the privacy problem.

PolyShield breaks the link. Many people deposit into one shared vault. The vault owns a single Polymarket account, and every bet is placed by that one account. On-chain, all bets look like they come from the same trader. Which depositor is actually behind any given bet is hidden by cryptography, not by a promise.

Three people deposit from three wallets. Every bet they authorize is placed by the vault's single Polymarket account, so an on-chain observer sees one trader — never which depositor is behind a given bet.

What PolyShield hides — and what it doesn't

Hidden: which depositor authorized which bet, and your running position. This is the property the cryptography enforces.
Public: that some wallet deposited into the vault, and how much. A deposit is an ordinary ERC-20 transfer — visible by design.

The privacy boundary

Think of PolyShield as a members-only trading desk. The world can see you walked in the door (the deposit). It cannot see which trades on the desk's shared account are yours.

Everything privacy-sensitive — generating your note, building every proof — happens locally in your browser with WebAssembly. No secret ever leaves your device, and no PolyShield server can link a bet back to a depositor, even if it wanted to.