Two institutional settlement platforms will go live within five days of each other this month. Circle's Arc, a permissioned Layer-1 blockchain backed by eleven validators including BlackRock, DTCC, Visa, and Mastercard, opens its public mainnet on September 16. The European Central Bank's Pontes,...
"Central-bank money on blockchain is no longer optional." — Isabel Schnabel, Executive Board Member, European Central Bank (Jackson Hole, August 28, 2026)
Two institutional settlement platforms will go live within five days of each other this month. Circle's Arc, a permissioned Layer-1 blockchain backed by eleven validators including BlackRock, DTCC, Visa, and Mastercard, opens its public mainnet on September 16. The European Central Bank's Pontes, a DLT bridge connecting tokenized-asset platforms to the eurozone's TARGET real-time gross settlement system, launches September 21. Together, they represent the two dominant models for moving institutional finance on-chain: a private-sector stablecoin chain denominated in USDC, and a central-bank settlement rail denominated in euros.
The parallel launches are not a coincidence. The $301.7 billion stablecoin market — of which USDC accounts for $73.6 billion — has made dollar-denominated settlement the default cash leg for on-chain transactions. ECB Executive Board member Isabel Schnabel stated explicitly at Jackson Hole on August 28 that if central-bank money stays off-chain while financial activity migrates on-chain, dollar stablecoins will capture the settlement layer, threatening European monetary sovereignty. Pontes is the ECB's direct response.
Circle will open Arc's public mainnet on September 16, 2026, following a private mainnet phase with more than 100 institutional and ecosystem builders and a testnet that processed over 500 million transactions across nearly 3 million wallets.
Arc runs on Malachite, a Tendermint-derived Byzantine fault-tolerant consensus engine delivering deterministic finality in under 500 milliseconds. The execution layer is EVM-compatible, built on Reth. Unlike most Layer-1 networks, Arc uses USDC as its native gas token, eliminating exposure to a volatile utility token for transaction fees.
The founding validator cohort comprises eleven institutions: BlackRock, DTCC, Galaxy, Global Payments, ICE (parent of the NYSE), Mastercard, MoneyGram, SBI Group, Standard Chartered, Sumitomo Corporation, and Visa. Circle itself serves as the twelfth validator. All are permissioned; this is not a permissionless network.
BlackRock has indicated plans to deploy BUIDL, its tokenized U.S. Treasury fund with $2.87 billion in total AUM as of July 2026, on Arc. DTCC, which custodies over $87 trillion in securities, will begin tokenizing DTC-custodied assets on the network in the second half of 2027. Stablecoin payments providers Rain, Thunes, and Wirex are supporting real-world settlement flows through the chain.
Circle CEO Jeremy Allaire called Arc "a bigger opportunity than USDC" during the company's Q2 2026 earnings call, describing it as "the birth of a new operating system layer for economic activity." CRCL shares trade near $72 as of early September, approximately 10% below the 2026 high, with a consensus analyst target of $101.70.
The ECB's Pontes service launches September 21, 2026, five days after Arc. Pontes connects market-operated distributed ledger technology platforms to TARGET Services, the eurozone's real-time gross settlement infrastructure that processes trillions of euros in interbank payments daily.
The design differs fundamentally from Arc. Pontes is not a standalone blockchain. It is a bridge layer that enables institutions operating on various DLT platforms to settle the cash leg of tokenized-asset transactions in central-bank money — euros held at the ECB or national central banks. Delivery versus payment (DvP) settlement is achieved via Hash-Link technology, ensuring atomic, all-or-nothing execution.
Pontes builds on a 2024 pilot involving 64 market participants that explored DLT-based settlement in central-bank money. Since March 30, 2026, the ECB has accepted tokenized securities — including debt issued on DLT networks — as eligible collateral for Eurosystem credit operations, provided those securities are capable of settlement on the TARGET system and issued via a central securities depository.
The initial version will operate with limited hours. By mid-2028, the ECB plans to extend operating hours to 22.5 hours per business day, add immediate settlement finality, and introduce programmability features. A full 24/7 service with multi-currency capability is on the longer-term roadmap.
Pontes is paired with Project Appia, a complementary initiative tasked with designing the broader architecture, technical standards, and legal framework for European tokenized finance. The Appia roadmap, published March 2026, targets a full blueprint by 2028.
| Feature | Circle Arc | ECB Pontes | |---|---|---| | Type | Layer-1 blockchain | DLT-to-RTGS bridge | | Launch date | September 16, 2026 | September 21, 2026 | | Settlement asset | USDC (dollar-denominated stablecoin) | Central-bank euros (TARGET balances) | | Consensus | Malachite (BFT), sub-500ms finality | Hash-Link protocol for DvP | | Execution | EVM-compatible (Reth) | Platform-agnostic bridge | | Permissioning | Permissioned validators, open application layer | Fully permissioned (eligible institutions only) | | Gas token | USDC | N/A (not a blockchain) | | Operator | Circle (public company, NYSE: CRCL) | European Central Bank | | Operating hours | 24/7 | Limited at launch; 22.5 hrs by 2028 | | Multi-chain | Single-chain with cross-chain bridges | Multi-DLT platform connectivity |
The two systems solve the same problem — institutional settlement of tokenized assets — through architecturally distinct approaches. Arc is a purpose-built blockchain where assets and settlement coexist on a single ledger. Pontes is an interoperability layer that leaves asset issuance on existing DLT platforms and provides the cash settlement bridge to central-bank money.
Arc's governance model centers on Circle as the network operator with permissioned validators drawn from regulated financial institutions. The validator set reads as a roster of global financial infrastructure: BlackRock (world's largest asset manager, $10.5 trillion AUM), DTCC (post-trade infrastructure for U.S. securities markets), ICE (parent of NYSE), Visa and Mastercard (combined card network volume exceeding $20 trillion annually).
Pontes is governed by the Eurosystem — the ECB and the 20 national central banks of the eurozone. Eligible participants are credit institutions and central securities depositories that meet ECB eligibility criteria. The 2024 pilot included 64 institutions, and the ECB opened a contact group application window that closed June 19, 2026.
The governance contrast is material. Arc is ultimately controlled by a single U.S. corporation, albeit one that is publicly traded, SEC-reporting, and backed by blue-chip validators. Pontes is controlled by central banks with sovereign authority over monetary policy and financial regulation in the eurozone.
Schnabel's Jackson Hole speech on August 28 frames the stakes. Her argument: as financial assets increasingly move on-chain, the cash leg of settlement follows. If that cash leg defaults to dollar stablecoins — primarily USDC and USDT, which together command 88.5% of the $301.7 billion stablecoin market — then the dollar extends its settlement dominance into tokenized capital markets.
The data supports her concern. USDC accounted for approximately 70% of adjusted stablecoin trading volume in the first half of 2026, according to CoinDesk. Annual USDC transaction volume reached $18.3 trillion in 2025. With Arc providing a dedicated settlement layer specifically optimized for USDC flows, Circle is positioning to capture institutional settlement volume that currently disperses across Ethereum, Solana, and other chains.
Pontes is the ECB's answer: provide central-bank money as the cash leg for tokenized settlement, preserving the euro's role in European capital markets infrastructure. The logic is that if tokenized Bunds, covered bonds, or corporate debt settle on DLT platforms, the cash side should settle in ECB-issued euros, not in USDC or any other privately issued stablecoin.
The stablecoin market stood at $301.7 billion as of September 3, 2026, having contracted 1.5% over the prior 90 days. USDT leads by supply at $183.3 billion (59% market share), while USDC stands at $73.6 billion (24%). USDC's market cap grew by approximately $2 billion in the week ending September 3.
The tokenized asset market provides the addressable settlement base. Tokenized real-world assets stood at approximately $51 billion by mid-2026, up from roughly $8 billion in early 2025, according to industry trackers. Repurchase agreements account for the largest segment at $326.8 billion, though measurement methodologies vary significantly across data providers. BlackRock's BUIDL alone holds $2.87 billion, with $902 million on Avalanche as of July 2026.
The global asset tokenization market is projected to reach $24.5 trillion by 2033, growing at a 42.1% CAGR from 2026, per Grand View Research. Sixty-seven percent of surveyed institutions indicated they are prioritizing asset tokenization over the next two years.
If these projections hold even partially, the settlement infrastructure that captures this flow — whether Arc's USDC rails or Pontes' central-bank-money rails — will process substantial transaction volume.
The Arc-Pontes parallel launch creates a bifurcated settlement landscape:
Dollar-denominated settlement (Arc): U.S. Treasuries, dollar-denominated money market funds, and global stablecoin payments are natural fits. BlackRock's BUIDL deployment and DTCC's planned tokenization of custodied assets signal that significant dollar-denominated institutional assets will flow through Arc.
Euro-denominated settlement (Pontes): Eurozone government bonds, covered bonds, and securities issued by European CSDs will settle against central-bank euros. The ECB's acceptance of DLT-issued securities as eligible collateral since March 2026 provides regulatory support.
Overlap zone: Cross-border transactions involving both dollar and euro assets will require interoperability between the two systems, or settlement in one currency with FX conversion. Neither Arc nor Pontes has announced cross-system connectivity.
Permissionless chains: Ethereum, Solana, and other permissionless networks continue to handle the majority of on-chain activity. Arc and Pontes target the institutional subset — regulated financial institutions and qualified counterparties. The two layers will likely coexist rather than compete directly with permissionless networks, at least in the near term.
The September 2026 parallel launch of Arc and Pontes marks the point where institutional settlement infrastructure begins to fragment along currency and sovereignty lines. The dollar side gets a purpose-built blockchain with sub-500ms finality and Wall Street validators. The euro side gets a central-bank bridge to existing RTGS infrastructure. Both systems solve the same problem — how to settle tokenized assets with trusted money — but reflect fundamentally different views on who should control settlement infrastructure: a publicly traded U.S. technology company or a consortium of European central banks.
The market will ultimately determine how volume distributes across these rails. What the data shows today is that both sides consider the stakes high enough to commit major institutional resources to competing solutions.