Circle Launched Arc Blockchain Mainnet
The company introduced a new Ethereum Virtual Machine compatible network supported by major financial institutions.
Updated on Sept. 18, 2026 in Financial Services
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Circle has officially launched the public mainnet for Arc, an Ethereum Virtual Machine compatible blockchain designed to function as an economic operating system for the internet. The network utilizes USDC as its primary unit of account and asset for transaction fee payments.
Why it matters
The network aims to shift settlement and tokenized-asset flows away from public networks by creating an environment managed by traditional financial institutions. This approach positions Arc as a centralized alternative for institutions looking to integrate blockchain technology into their operations.
The Arc network features a validator set comprised of 11 major financial institutions, including BlackRock, Visa, and Mastercard. Circle retains technical control over the blockchain, including the ability to blacklist addresses and freeze USDC balances.
The players
Circle
This financial technology firm is the issuer of the USDC stablecoin and the creator of the new Arc blockchain network.
BlackRock
As the world's largest asset manager, this investment firm serves as a founding validator for the Arc network.
Visa
This multinational payment services corporation has joined the Arc network as a founding validator.
The details
The blockchain relies on a centralized issuer model where Circle manages underlying assets to maintain ledger integrity. Institutions such as DTCC, ICE, Standard Chartered, and SBI Group are participating as founding validators to support the platform.
Timeline
September 16, 2026: The public mainnet for the Arc blockchain officially launched.
Week of September 14, 2026: A crypto regulatory clarity bill failed to reach the Senate floor.
July 2026: Robinhood launched the competing Robinhood Chain.
Market Landscape
The launch of Circle's Arc follows the debut of Robinhood Chain in July 2026 as another major financial entity move into proprietary blockchain infrastructure. This trend signals a broader push by traditional finance firms to control settlement layers rather than relying on public chains.
Users of USDC should be aware that Circle retains the power to freeze balances and blacklist addresses on the Arc network. This centralized governance model distinguishes the platform from fully decentralized alternatives, impacting how participants manage their assets.
The takeaway
The move by Circle highlights a transition toward institutional-grade infrastructure where traditional entities maintain oversight of digital ledger transactions. Traders and institutions should monitor how this centralized framework influences adoption compared to open-source, permissionless blockchain networks.
Further reading
For more information on the current landscape of digital assets and institutional integration, visit Financial Services.
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