Arc Mainnet launches September 16. Arc is an open blockchain network being built for the world’s financial markets, real-time money movement, and agentic economic activity. Arc’s founding validator cohort includes @BlackRock, @The_DTCC, @galaxyhq, @GlobalPayInc, @Mastercard, @MoneyGram, @ICE_Markets, SBI, @StanChart, Sumitomo Corporation, and @Visa. This is a different model for onchain infrastructure: a network secured by the institutions building on it. Arc is already gaining traction across major institutions. @BlackRock, @BNYglobal, @The_DTCC, and @StanChart are each exploring integrations spanning tokenized asset settlement, custody, stablecoin access, FX, and repo infrastructure. Arc is also expected to launch with a broad ecosystem across liquidity, payments, access, and infrastructure with more to come. Liquidity / DeFi: @aave, @aeroxyz, @FalconXGlobal, @galaxyhq, @GSR_io, @keyrock, @Morpho, @nonco_otc, @Uniswap, @OfficialXFX Payments: @raincards, @ThunesPayments, @wirexapp Major Exchanges and Wallet Providers: @BinanceWallet, @chainlink, @FireblocksHQ, @krakenfx, @Ledger, @MetaMask, @Official_Upbit, @Uniswap Participants building on Arc experience an open platform powering the world's financial markets, real-time money movement, and agentic economic activity. Whether you're launching a financial application, integrating stablecoin flows, or experimenting with new, AI-powered economic models, Arc gives you the tools to build what isn’t possible anywhere else. Arc Mainnet launches September 16. arc.io/pressroom/circle-anno…