Circle’s Arc blockchain goes live on public mainnet on September 16 with 11 founding validators, including BlackRock, Visa, Mastercard, and DTCC. Circle (NYSE: CRCL) has announced that its Arc blockchain will go live on public mainnet on September 16. Who are the names that make up Arc’s founding validator cohort? Alongside Circle, BlackRock, DTCC, Galaxy, Global Payments, ICE, Mastercard, MoneyGram, SBI Group, Standard Chartered, Sumitomo Corporation, and Visa are the network’s founding validator cohort. According to Circle, Arc offers fast settlement, transaction fees priced in stablecoins, and privacy controls.