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<p><strong>Circle has launched the public mainnet of Arc, a new Layer 1 blockchain designed for financial markets, and the validator lineup reads like a who’s who of global finance: BlackRock, DTCC, Visa, Mastercard, ICE, MoneyGram, Standard Chartered, Galaxy, SBI Group, Sumitomo Corporation and Worldpay/Global Payments are all named in the founding cohort.</strong></p>
<p>Circle announced the Arc mainnet on September 16, 2026, <a href="https://www.circle.com/pressroom/circle-launches-arc-mainnet-an-economic-operating-system-for-the-internet" rel="noopener noreferrer nofollow">describing the network</a> as an open Layer 1 built for real-time money movement, financial markets infrastructure and what it calls “agentic economic activity.” Transaction fees on Arc are paid in USDC. For related coverage, see <a href="https://www.theccpress.com/reserve-protocol-launches-five-ai-themed-tokenized-equity-dtfs-on-bnb-chain/" rel="noopener noreferrer nofollow">Reserve Protocol Launches 5 AI-Themed Tokenized Equity DTFs on BNB Chain</a>.</p>
<p>Circle co-founder, chairman and CEO Jeremy Allaire called it the company’s most consequential release since USDC itself. “Arc is the single most significant launch in Circle’s history since USDC itself,” Allaire said in the official announcement. For related coverage, see <a href="https://www.theccpress.com/shein-launches-2b-hong-kong-ipo-after-failed-us-london-attempts/" rel="noopener noreferrer nofollow">Shein Launches Up to $2B Hong Kong IPO After Failed US and London Attempts</a>.</p>
<h2 id="blackrock-dtcc-and-visa-are-named-as-validators">BlackRock, DTCC and Visa Are Named as Validators</h2>
<p>The phased founding validator cohort spans payments, asset management, market infrastructure and banking. BlackRock, the world’s largest asset manager, sits alongside DTCC, the central clearinghouse for US securities markets, and Visa, the global payments network. That combination alone would have seemed unlikely on a public blockchain just two years ago. For related coverage, see <a href="https://www.theccpress.com/bitcoin-etfs-worst-day-since-june-clarity-act-vote/" rel="noopener noreferrer nofollow">Bitcoin ETFs Post Worst Day Since June After Clarity Act Vote Fails</a>.</p>
<p>Circle says Arc uses a restricted proof-of-authority validator model, meaning block producers are known, permissioned entities rather than anonymous stakers. Developers and end users, however, can deploy contracts and send transactions without approval, <a href="https://thedefiant.io/converge/blockchains/circle-launches-arc-mainnet-with-blackrock-dtcc-and-visa-producing-blocks" rel="noopener noreferrer nofollow">according to The Defiant’s analysis</a> of the validator and token design. The architecture separates who runs the network from who can use it. For related coverage, see <a href="https://www.theccpress.com/us-house-committee-advances-crypto-tax-bill-38-5-vote/" rel="noopener noreferrer nofollow">US House Committee Advances Crypto Tax Bill in 38-5 Vote</a>.</p>
<p>Arc launched with more than 100 institutional and ecosystem partners on day one, <a href="https://decrypt.co/378374/circle-launches-arc-mainnet-with-blackrock-dtcc-and-visa-as-validators" rel="noopener noreferrer nofollow">Decrypt reported</a>. Circle also minted 10 billion ARC tokens at genesis, though the company has not committed to a public token launch. For related coverage, see <a href="https://www.theccpress.com/hackers-hijack-hbo-max-reddit-account-crypto-stealing-malware/" rel="noopener noreferrer nofollow">Hackers Hijack HBO Max Reddit Account to Push Crypto-Stealing Malware</a>.</p>
<h2 id="usdc-as-arc-s-gas-asset-why-it-matters">USDC as Arc’s Gas Asset: Why It Matters</h2>
<p>Arc’s choice of USDC for transaction fees is a deliberate design signal. Banks and institutional trading desks care about predictable costs; a fee asset pegged to the dollar removes the volatility risk that comes with native tokens like ETH or SOL.</p>
<p>USDC currently carries a <a href="https://www.coingecko.com/en/coins/usd-coin" rel="noopener noreferrer nofollow">market capitalization of roughly $73.68 billion</a>, making it the second-largest stablecoin by supply and giving Arc’s fee market significant liquidity depth from day one.</p>
<figure style="margin:24px 0;padding:22px 24px;border:1px solid #d9e2ec;border-left:5px solid #2463eb;background:#f8fbff;border-radius:6px;font-family:Arial,Helvetica,sans-serif;color:#14213d;">
 <div style="margin:0 0 8px;font-size:12px;line-height:16px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:#486581;">
  USDC market capitalization
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 <div style="margin:0;font-size:38px;line-height:42px;font-weight:800;letter-spacing:-0.03em;color:#102a43;">
  $73.68B
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 <figcaption style="margin-top:10px;font-size:14px;line-height:20px;color:#52606d;">
  Supplied market snapshot; USDC is Arc’s transaction-fee asset.
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</figure>
<p>Circle says Arc settles transactions deterministically in under one second. For institutions that currently wait days for securities settlement, that is the core pitch: the speed of crypto rails with the compliance wrapper of a known, regulated network operator.</p>
<h2 id="what-the-arc-mainnet-launch-could-mean">What the Arc Mainnet Launch Could Mean</h2>
<p>The validator list is an institutional credibility play as much as a technical one. DTCC processing trillions in US securities clearance annually, combined with Visa’s global payments reach, suggests Circle is positioning Arc for treasury management, cross-border settlement and tokenized asset trading, not retail crypto speculation. That framing also lines up with regulatory momentum: Circle references the GENIUS Act in its launch materials as part of the broader regulatory clarity now available for stablecoin infrastructure, though no regulator has taken specific action tied to Arc’s launch.</p>
<p>The network’s permissioned validator layer is also worth watching in the context of broader tokenization efforts. Tokenized equity products are already proliferating on other chains, and Arc’s institutional validator base could make it a natural settlement layer for regulated financial products that need audit trails and known counterparties at the consensus layer.</p>
<p>That said, a validator roster and a genesis mint are a starting point, not proof of adoption. The practical impact depends entirely on what BlackRock, DTCC and Visa actually build or settle on Arc, and when. What happens when a DTCC pilot hits a Circle-operated chain during a market stress event? That answer does not exist yet.</p>
<p style="font-size:13px;color:#888;border-top:1px solid #333;padding-top:12px;margin-top:30px;">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>
<p>The article <a href="https://www.theccpress.com/?p=48536" rel="noopener noreferrer nofollow">Circle Launches Arc Mainnet With BlackRock, DTCC, Visa Validators</a> first featured on <a href="https://theccpress.com/" rel="noopener noreferrer nofollow">theccpress.com</a>.</p>

Circle Launches Arc Mainnet With BlackRock, DTCC, Visa Validators

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