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Arc Mainnet launches September 16. Where Arc stands today: → More than half a billion testnet transactions → Nearly 3 million wallets → 100+ partners active on private mainnet → Initial validator cohort expected to help operate the network alongside Circle Arc is being built as financial infrastructure for... show more

Circle

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190,945 views • 6 days ago •via X (Twitter)

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Introducing Arc, the home for stablecoin finance. Arc is an open Layer-1 blockchain purpose-built to drive the next chapter of financial innovation powered by stablecoins. Designed to provide an enterprise-grade foundation for payments, FX, and capital markets, Arc delivers the performance, reliability, and liquidity builders need to meet global financial demands. Arc features: ✅ USDC as native gas ✅ Built-in FX engine ✅ Deterministic sub-second finality ✅ Opt-in privacy ✅ Full Circle platform integration Open, composable, and EVM-compatible, Arc is designed to interoperate seamlessly with the broader multichain ecosystem. As part of our mission to advance blockchain infrastructure, we're excited to welcome the Malachite team and IP from Informal Systems to Circle. Arc is built on Malachite’s high-performance consensus engine. In line with our commitment to open-source development, the core software for Arc will be released under a permissive license, enabling the broader developer community to contribute, extend, and build on top. Serving as foundational infrastructure for the internet, Arc will enable 24/7 global settlement that’s as seamless and native as messaging on the web. Arc will enter private testnet in the coming weeks, with public testnet expected this fall. Read the litepaper: Let’s build the new internet financial system together:

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Arc Public Testnet is live. Arc is an open Layer-1 blockchain designed to serve as the Economic OS for the internet, uniting programmable money and onchain innovation with real-world economic activity. Arc is uniquely suited to be a new trusted foundation for: → Lending and financial services → Capital markets → Tokenized asset issuance → Stablecoin settlement worldwide With deterministic sub-second finality, stablecoins as native gas, and opt-in configurable privacy, Arc is purpose-built to meet the needs of the global financial system. It’s built for a world where: → Financial apps are as accessible as email → Dollars, euros, pesos, and other fiat currencies move instantly → Private transactions that support compliance happen at scale → AI agents transact and coordinate commercial activity autonomously Arc testnet is already seeing participation from leading companies across capital markets, global payments and technology platforms, and full-stack developer infrastructure providers. Guided by Circle’s vision of making money truly open and programmable, Arc is public internet infrastructure that invites everyone to build, coordinate, and transact onchain. Start building: Read the release:

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