"Circle Internet Group, Inc. announced the public mainnet launch of Arc, an open Layer 1 blockchain purpose-built for financial markets, real-time money movement, and agentic economic activity. Arc launches with native integration into Circle’s full-stack platform; a founding validator cohort drawn from the institutions that run global finance; more than 100 applications; and more than 100 institutional and ecosystem builders spanning global banks, asset managers, payment networks, exchanges, custodians, DeFi protocols, wallets, and AI platforms."