NEW YORK--(BUSINESS WIRE)--Oct 28, 2025--

Circle Internet Group, Inc. (CRCL:NYSE) (Circle) today announced the launch of the public testnet for Arc , an open Layer-1 blockchain network designed to meet the needs of developers and companies bringing more economic activity onchain. The launch arrives with broad-based engagement and collaboration from more than one hundred companies across the financial and economic system, deep infrastructure support, and global participation. Arc is now available for developers and enterprises to deploy, test and build on what Circle describes as the new Economic Operating System (“OS”) for the internet.

Arc represents a major step forward in building open, programmable financial infrastructure for the global economy. Featuring predictable dollar-ba

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