Circle Internet Group, Inc. (CRCL:NYSE) has announced the launch of the public testnet for Arc, an open Layer-1 blockchain network. The initiative aims to facilitate on-chain economic activity for developers and companies. The launch, announced here, involves collaboration from over 100 companies across the financial and economic sectors.

Arc is designed to serve as a new Economic Operating System for the internet, offering features such as predictable dollar-based fees, sub-second transaction finality, and configurable privacy options. It integrates directly with Circle’s full-stack platform, supporting a variety of use cases in lending, capital markets, foreign exchange, and global payments.

Global Financial Institutions Engage with Arc

Leading financial institutions, including Apollo, BNY Mellon, and State Street, are engaging with Arc to explore its potential in capital markets. The network aims to upgrade financial systems by enhancing efficiency and innovation.

Retail and institutional banks, asset managers, and insurers are also participating. Notable participants include BlackRock, Deutsche Bank, HSBC, and Goldman Sachs. These institutions are exploring opportunities in payments, lending, and asset issuance on the blockchain.

Arc’s Infrastructure and Future Vision

Arc provides core infrastructure for stablecoin issuers and tokenized assets. The network’s roadmap includes stablecoins as tokens for gas fees and native infrastructure for stablecoin swaps and FX liquidity.

The testnet launch marks the beginning of a network intended to evolve into a distributed, community-driven system. Circle envisions Arc being operated and governed by a globally distributed set of participants, including financial institutions and technology platforms.

Circle’s CEO, Jeremy Allaire, emphasized Arc’s potential to connect local markets to the global economy, highlighting its enterprise-grade network infrastructure. The network aims to become a shared, neutral layer of economic infrastructure for the internet.

Why This Matters: Impact, Industry Trends & Expert Insights

Circle has launched the public testnet for Arc, a Layer-1 blockchain network designed to enhance on-chain economic activity. This initiative involves collaboration with over 100 companies, aiming to innovate financial systems through enhanced efficiency and integration.

October 2025 is witnessing significant trends in Layer-1 blockchain adoption, driven by advanced technologies and institutional interest. Key Layer-1 blockchains like Solana and Ethereum are experiencing substantial growth. This aligns with Circle’s launch of Arc, which is designed to serve as a new Economic Operating System for the internet, offering features such as predictable dollar-based fees and sub-second transaction finality. Ainvest

Circle’s Arc blockchain is widely seen by experts as a promising Layer-1 solution tailored specifically for stablecoin finance, offering predictable fees, sub-second deterministic finality, optional privacy, and innovative reversible transaction capabilities. This supports Arc’s potential to connect local markets to the global economy, highlighting its enterprise-grade network infrastructure. Cryptohopper

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