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<p><strong>Circle, the company behind the USDC stablecoin, has built its own Layer-1 blockchain called Arc, designed from the ground up for stablecoin-based payments, foreign exchange, and capital markets activity. The network is currently live on public testnet, with a mainnet beta targeted for later in 2026.</strong></p>
<h2 id="what-arc-is-and-how-it-connects-to-circle">What Arc Is and How It Connects to Circle</h2>
<p>Arc is an open Layer-1 blockchain purpose-built for stablecoin finance. Unlike general-purpose smart-contract platforms that handle everything from NFTs to gaming, Arc is narrowly focused on moving digital dollars efficiently, with compliance-ready infrastructure baked in from day one.</p>
<p>The chain is a direct extension of Circle's existing business. Circle issues USDC, which had <a href="https://www.circle.com/usdc" rel="noopener noreferrer nofollow">76.5 billion tokens in circulation</a> as of May 14, 2026, with native issuance across 34 blockchain networks. Arc gives Circle its own rails for that activity rather than relying entirely on third-party chains.</p>
<figure>
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  USDC in circulation
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  76.5 B
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  Circle's USDC page lists 76.5 billion USDC in circulation as of May 14, 2026.
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</figure>
<p>Arc is not another general-purpose chain competing with Ethereum or Solana for DeFi and NFT traffic. It is infrastructure specifically optimized for the financial plumbing that stablecoins need: settlement, cross-border payments, and institutional treasury operations.</p>
<h2 id="how-the-arc-blockchain-is-supposed-to-work">How the Arc Blockchain Is Supposed to Work</h2>
<p>Arc uses USDC as its native gas token, meaning transaction fees are paid in stablecoins rather than a volatile native asset. The network also includes <a href="https://www.circle.com/blog/introducing-arc-an-open-layer-1-blockchain-purpose-built-for-stablecoin-finance" rel="noopener noreferrer nofollow">built-in foreign exchange functionality, sub-second finality, opt-in privacy, and EVM compatibility</a>, allowing developers already familiar with Ethereum tooling to build on Arc without learning a new stack.</p>
<p>The chain integrates directly with Circle's existing product suite, including USDC, the Cross-Chain Transfer Protocol (CCTP), and Gateway. This tight integration means builders on Arc can tap into Circle's cross-chain liquidity and programmable wallet infrastructure natively.</p>
<p>Circle has positioned the network for four primary use cases: payments, foreign exchange, capital markets, and enterprise treasury management. The target audience is not retail DeFi users but enterprises and financial institutions that need compliant, predictable infrastructure for moving value at scale.</p>
<p>Circle CEO Jeremy Allaire framed the ambition broadly when the public testnet launched.</p>
<blockquote>
 "Arc presents the opportunity for every type of company to build on enterprise-grade network infrastructure." <br><span> — Jeremy Allaire, <a href="https://www.circle.com/pressroom/circle-introduces-the-arc-public-testnet-a-new-global-financial-utility-layer-built-for-stablecoin-payments-fx-and-capital-markets" rel="noopener noreferrer nofollow">Circle Pressroom</a></span>
</blockquote>
<p>Circle announced the Arc public testnet on October 28, 2025, disclosing that more than 100 companies were participating as launch and design partners.</p>
<figure>
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  Launch and design partners
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  100+
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  Circle said more than 100 companies were participating when it announced the Arc public testnet on October 28, 2025.
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<p>One important caveat: the Arc website states that the testnet has not been reviewed or approved by the New York State Department of Financial Services. That disclaimer signals the network is still in an early stage from a regulatory standpoint, even as Circle frames it as compliance-ready.</p>
<h2 id="why-arc-matters-for-stablecoins-and-the-crypto-market">Why Arc Matters for Stablecoins and the Crypto Market</h2>
<p>Circle building its own chain is a strategic bet on vertical integration. Rather than remaining a token issuer that depends on Ethereum, Solana, and other networks for distribution, Circle is creating infrastructure it controls, potentially capturing more of the value chain around USDC transactions.</p>
<p>The move comes as institutional interest in crypto infrastructure continues to grow. Major financial players like <a rel="noopener noreferrer nofollow">SBI and Rakuten are developing in-house crypto investment products</a>, and traditional banks such as <a rel="noopener noreferrer nofollow">Intesa Sanpaolo have built meaningful crypto exposure</a>. Arc positions Circle to serve exactly these types of institutions with dedicated stablecoin rails.</p>
<p>The stablecoin payments space is increasingly competitive. Existing Layer-1 networks already handle large volumes of USDC transfers, and rival stablecoin issuers are building their own infrastructure plays. Arc's differentiator is the direct connection to Circle's issuer-level capabilities: native USDC gas, built-in FX, and compliance tooling designed for regulated entities.</p>
<p>For the broader crypto market, Arc represents a shift in how stablecoin issuers think about their role. Circle is no longer content to be a token on someone else's chain. With USDC already live on 34 networks and <a rel="noopener noreferrer nofollow">institutional adoption of crypto products accelerating globally</a>, owning the settlement layer gives Circle a structural advantage if enterprise stablecoin demand grows as projected.</p>
<p>According to unconfirmed company roadmap statements, Circle is targeting a mainnet beta for Arc in 2026. Whether the network can attract meaningful transaction volume away from established chains will depend on execution, regulatory approvals, and whether the enterprise use cases Circle is targeting materialize at scale.</p>
<p>Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.</p><a href="https://coinwy.com/?p=17875" rel="noopener noreferrer nofollow">Read original article on coinwy.com</a>
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What Is Arc? Circle's Stablecoin Blockchain, Explained

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