Circle Internet Financial, the issuer of USDC—the world’s second-largest stablecoin—has taken a significant step in advancing its broader vision. The company’s newly developed Layer 1 blockchain, Arc, officially launched its public testnet on October 28, 2025.
What’s even more noteworthy is that this blockchain, designed to bring global financial infrastructure on-chain, has already attracted participation from over 100 leading financial institutions and technology companies worldwide, including industry giants such as BlackRock, Visa, Goldman Sachs, and Amazon Web Services.
01 Project Background: Circle’s Ambition and the Birth of Arc
As digital currency and traditional finance continue to converge at an accelerated pace, Circle is no longer content to remain solely a stablecoin issuer.
The launch of Arc marks a pivotal move for the company toward building a comprehensive blockchain financial infrastructure.
Arc is designed as an open, finance-focused Layer 1 blockchain network, with its core goal to become the "economic operating system of the internet."
Jeremy Allaire, Circle’s co-founder, chairman, and CEO, stated: "Arc offers companies the opportunity to build on enterprise-grade network infrastructure, specifically designed to connect every local market to the global economy."
This statement reveals Arc’s global vision and its ambition to bridge the worlds of traditional finance and blockchain.
02 Technical Features: Infrastructure Tailored for Financial Applications
Arc is not a general-purpose blockchain; rather, it is specifically optimized to meet the unique needs of financial applications. Its technical features are highlighted in three main areas:
Predictable USD-Denominated Fees: Arc employs a USD-based fee structure, providing financial institutions with certainty and predictability around transaction costs—eliminating the volatility often associated with native token-based fees.
Sub-Second Transaction Finality: The network achieves transaction finality in under one second, which is crucial for high-speed financial applications such as payments, foreign exchange, and capital markets operations.
Optional Privacy Controls: Arc offers configurable privacy options, enabling institutions to leverage blockchain technology without fully exposing sensitive financial data.
Additionally, Arc is deeply integrated with Circle’s USDC stablecoin and payment stack, supporting a wide range of financial applications from lending and capital markets to global payments and foreign exchange.
03 Ecosystem: A Panoramic View of Testnet Participants
The successful launch of the Arc testnet is backed by robust ecosystem support. While Circle has not officially released the "first 11 projects list," public information shows that participating institutions span all areas of financial services:
Top-Tier Financial Institutions
Testnet participants include global asset management giant BlackRock, leading Wall Street investment bank Goldman Sachs, one of the world’s largest custodians BNY Mellon, as well as international banks Deutsche Bank and State Street.
These institutions collectively manage trillions of dollars in traditional finance, bringing a massive potential user base and asset scale to Arc.
Payment and Technology Giants
Global payment companies Visa, Mastercard, FIS, and Fiserv have also joined the testnet.
On the technology infrastructure side, companies like Amazon Web Services (AWS) and Cloudflare are providing Arc with strong technical support.
Digital Asset Trading Platforms
Well-known digital asset exchanges such as Coinbase, Robinhood, and Kraken are also testnet participants, potentially offering greater liquidity and market access for assets on Arc.
International Stablecoin Issuers
Arc’s role in stablecoin infrastructure is also highly prominent. Stablecoin issuers from several countries have joined the testnet, including Japan’s JPYC, Brazil’s BRLA, Mexico’s MXNB, and the Philippines’ PHPC.
Notably, South Korean digital asset infrastructure firm BDACS has announced plans to issue a Korean won stablecoin, "KRW1," on the Arc blockchain.
Developers and Infrastructure Providers
Arc’s ecosystem also includes leading Web3 developer tools and infrastructure providers such as MetaMask, Fireblocks, Chainlink, Alchemy, and LayerZero, as well as cross-chain bridge protocols Wormhole and Stargate.
04 Market Impact: The Potential to Reshape Financial Infrastructure
The launch of Arc could have far-reaching effects on both traditional finance and the digital asset industry:
Accelerating the On-Chain Transition of Traditional Finance
Citi predicts that stablecoin market capitalization could reach $4 trillion by 2030, while BCG and Ripple estimate that the tokenized asset market could approach $19 trillion by 2033.
Arc’s emergence aligns with this trend, offering traditional financial institutions a compliant and efficient gateway to the blockchain world.
Advancing Stablecoin Regulation
Recent U.S. legislation related to stablecoins, including the passage of the GENIUS Act, has provided clear legal frameworks for stablecoins.
This gives businesses greater legal certainty to use USDC for transactions and settlements on platforms like Arc.
Breaking Down Global Market Barriers
Arc’s specialized architecture connects local markets across continents—from Africa to the Americas and Asia—providing enterprise-grade infrastructure for both traditional financial institutions and Web3-native projects.
This is especially significant in emerging markets such as the Middle East, where demand for U.S. dollars is high and cross-border payments are complex, highlighting Arc’s potential.
05 Roadmap: From Testnet to Distributed Governance
According to Circle’s published plans, the Arc public testnet went live on October 28, with the mainnet scheduled for official launch in 2026.
The testnet phase is primarily focused on validating system stability, performance, and cross-platform compatibility.
Arc’s long-term goal is to evolve into a community-governed network, expanding validator participation and establishing transparent governance.
Circle plans to transition Arc from its current stewardship model to a distributed governance structure jointly operated by financial institutions, technology platforms, and protocol developers.
06 Investment Perspective: ARC Token Market Performance and Analysis
As Arc blockchain garners industry attention, tokens named ARC have also attracted investor interest.
It’s important to clarify that Circle’s Arc blockchain itself has not issued a dedicated ARC token.
As of November 3, 2025 (UTC), according to CoinMarketCap, a token called ARC (AI Rig Complex) is trading at $0.02, up 20.97% in 24 hours, with a current market capitalization of approximately $15.3 million.
This token is a blockchain project focused on AI and has no direct connection to Circle’s Arc blockchain.
07 Outlook: The Dawn of a New Era in Finance
The future development path for the Arc blockchain is already mapped out, and its success will largely depend on several key factors:
Adoption by mainstream financial institutions will be a critical metric for Arc’s success. Over 100 companies are already involved in building the Arc ecosystem, spanning payments, trade, lending, and fintech services.
The realization of cross-chain interoperability will also determine Arc’s reach. The Arc ecosystem is not limited to finance but is integrated with leading developers and infrastructure providers.
The convergence of AI and blockchain could be another growth driver in the future. AI integration is also on the roadmap, with Anthropic’s Claude Agent SDK set to enhance the developer experience through AI-powered tools.
Looking Ahead
In the future, when we can instantly complete cross-border payments, trade tokenized assets, or participate in FX settlements on Arc, today’s testnet will be seen as the starting point for it all.
The curtain has risen on the mainstream adoption of blockchain technology in financial applications, and Arc is poised to become the core infrastructure of this new paradigm.
