Updated: 2026-06-28 · Author: HiYesNo Editorial Team

HiYesNo Technology: Why We Built on Polygon

HiYesNo is built on Polygon mainnet with a security-audited smart contract system. There is clear logic behind this technical choice.

Why Polygon?

• Low Gas fees: Polygon transaction costs are approximately 1,000 times lower than Ethereum, making small-amount predictions economically viable
• High throughput: Polygon can process thousands of transactions per second, ensuring smooth user experience even during market volatility
• Ethereum security: Polygon is compatible with Ethereum mainnet, inheriting its robust security infrastructure
• Broad ecosystem support: USDT, MetaMask, and major exchanges all natively support Polygon

Smart Contract System

HiYesNo deploys contracts using the OpenZeppelin UUPS upgradeable proxy pattern with Solidity 0.8.22, enabling rapid security fixes without requiring user asset migration.

Oracle Integration

We use the UMA Optimistic Oracle for market settlement, supporting any type of real-world event with economic game theory mechanisms ensuring settlement accuracy.

Security Audits

All core contracts have undergone independent third-party security audits with reports publicly available. Multi-signature mechanisms secure contract upgrade permissions.