Circle's Arc Aims to Be 'Economic OS' with Payment Finality and Permissioned Validators
Circle's new blockchain, Arc, has gone live on mainnet. Nikhil Chandhok, Circle's chief product and technology officer, described Arc as an 'economic OS' - a full-stack bet that the infrastructure bridging regulated finance and crypto should extend from the network layer up through application primitives.
Arc's technical differentiators include payment finality, with transactions truly final once settled in under half a second. Stablecoin gas is paid in stablecoins like USDC, eliminating the need for users to hold native network tokens. Arc Studio allows users to deploy custom contracts, and Kits provides tooling to build custom apps on top of Arc.
The central argument is that Circle believes the next wave of on-chain activity will come from new economic actors - AI agents transacting with each other, institutional RWA issuers, and non-USD stablecoin flows. Chandhok emphasized that simply moving USDC deployment from Ethereum to Arc would not grow the market.
Arc's permissioned validator set is designed for institutional users who want to know which validators are securing the network. The rationale is traffic-driven: institutions cannot rely on unknown validators today. Circle also uses TEEs (trusted execution environments) for privacy, with a toggle that turns public transactions into private ones using the same wallet interface.