Set v0.2.0 is an Ethereum Layer-2 blockchain built on the OP Stack, purpose-built for commerce.
What It Is
Set Chain enables merchants to anchor cryptographically verifiable commerce events (orders, payments, returns, inventory) on-chain with 2-second block times and low gas fees. It bridges traditional commerce infrastructure with blockchain verification.
Core Components
- SetRegistry - Anchors Merkle roots from off-chain commerce events, enabling inclusion proofs for orders/payments
- SetPaymaster - Gas sponsorship so merchants can pay transaction fees on behalf of customers
- Anchor Service (Rust) - Bridges the off-chain sequencer to on-chain state
New in v0.2.0
MEV Protection
- Encrypted mempool for transaction privacy
- Forced inclusion for censorship resistance
- Threshold key registry for decentralized key management
Stablecoin Infrastructure
- ssUSD stablecoin with NAV oracle pricing
- wssUSD wrapped yield-bearing variant
- Treasury vault for collateral management
Governance
- SetTimelock for time-delayed governance actions
SDK
- Full TypeScript SDK (@setchain/sdk) for interacting with all contracts