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BlockchainDigital Assets

US Banking Regulator Finalizes GENIUS Act Rules for Stablecoin Issuers

The US Office of the Comptroller of the Currency (OCC) has finalized a major set of rules implementing the Guiding and Establishing National Innovation for US Stablecoins Act, widely known as the GENIUS Act. Announced on October 21, 2026, the rule establishes regulatory requirements for permitted payment stablecoin issuers and certain foreign payment stablecoin issuers under the agency's jurisdiction. It also addresses specified digital-asset custody activities conducted by institutions supervised by the OCC.

The decision marks another step toward a formal US regulatory framework for payment stablecoins, digital tokens designed to maintain a stable value relative to a reference asset such as the US dollar. The new rules aim to establish clearer expectations around reserve backing, redemption, risk management and regulatory supervision. For stablecoin companies and financial institutions, the framework could influence how products are structured, how reserves are managed and what regulatory obligations apply before services can expand.

What the new stablecoin rules cover

The OCC says its final rule implements requirements established under the GENIUS Act for issuers that fall within its regulatory remit. These requirements form part of a broader federal approach to payment stablecoins, with an emphasis on reserve backing, redemption arrangements and risk controls. The framework is intended to clarify the conditions under which eligible issuers can operate under federal oversight.

Stablecoins are widely used in digital-asset trading, blockchain payments and transfers between crypto platforms. Their value proposition depends on users having confidence that tokens can maintain their intended value and be redeemed under the applicable terms. Clearer requirements may help institutions evaluate stablecoin services, although regulation alone does not eliminate operational risk, counterparty risk, cybersecurity threats or the possibility of a loss of confidence in an issuer.

The final rule also addresses certain custody activities involving digital assets at institutions supervised by the OCC. Custody is an important part of the digital-asset market because institutions need procedures to safeguard assets, control access to private keys and manage operational risks. The precise requirements depend on the activities involved and the rules applicable to the institution.

When does the framework take effect?

The OCC states that the final rule takes effect on January 18, 2027. That date gives the industry a defined point for the rule's effectiveness, but it should not be confused with an announcement that every stablecoin issuer is already licensed or that all applications are immediately open.

The agency said it would announce separately when it begins accepting and processing applications and waiver requests from prospective permitted payment stablecoin issuers. Companies considering entry into the market will need to follow the OCC's subsequent application guidance and assess which regulatory pathway applies to their particular business model.

The distinction matters for consumers and investors. A federal framework can define eligibility and oversight without automatically granting authorization to every existing stablecoin, crypto exchange or digital-asset service provider. Users should continue to assess the issuer, redemption terms, disclosures and risks associated with the specific product they use.

Anti-money-laundering requirements are still being developed

The OCC has clarified that the rule covers the regulations it was required to issue under the GENIUS Act, apart from requirements related to the Bank Secrecy Act, anti-money-laundering obligations and sanctions administered by the Office of Foreign Assets Control. Those areas are expected to be addressed through separate rulemaking in coordination with the US Treasury Department.

This means the October announcement is an important regulatory milestone, but not the final word on every compliance obligation affecting payment stablecoins. Issuers and service providers will need to monitor further guidance and rulemaking before determining the full set of requirements applicable to their operations.

What this means for banks and digital-asset businesses

For banks and financial technology companies, a more defined federal framework may make it easier to assess whether payment-stablecoin products can fit within existing compliance, treasury and payment operations. It may also influence decisions about custody services, business partnerships and the infrastructure needed to support regulated digital-asset activity.

For crypto businesses, the rules create a clearer starting point for understanding the regulatory expectations that apply to eligible issuers under OCC supervision. However, the costs of compliance, the details of the application process and the requirements still to be finalized will affect how quickly individual companies can adapt.

Internationally, the development is relevant because dollar-denominated stablecoins are used across borders for trading, payments and digital commerce. A clearer US framework could influence how global institutions evaluate stablecoin partnerships and market access. It does not, however, automatically change the laws that apply in other countries or authorize a stablecoin issuer to operate worldwide.

What happens next?

The next steps include the OCC's application guidance and further rulemaking on anti-money-laundering and sanctions-related requirements. Stablecoin issuers, financial institutions and digital-asset platforms will need to monitor these developments to understand the complete compliance landscape and any transition requirements that apply to them.

The GENIUS Act's implementation is an important development in the evolution of digital-asset regulation in the United States. The real impact will depend on how the rules are applied, which issuers qualify, how supervision works in practice and whether the framework gives users and institutions greater confidence without creating unnecessary barriers to responsible innovation.

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BlockchainDecentralized Apps

Circle’s Arc Blockchain Goes Live With 100+ Apps and AI Developer Tools

Circle has launched the public mainnet of Arc, a Layer 1 blockchain designed for financial applications, stablecoin payments and software powered by artificial intelligence. The network went live on September 16, 2026, with more than 100 applications and over 100 institutional and ecosystem builders involved at launch, according to Circle. Its approach combines blockchain-based financial services with infrastructure intended to support both people and AI agents carrying out transactions.

Unlike a general-purpose blockchain focused primarily on speculative token activity, Arc is designed around payments, foreign-exchange settlement, lending, trading and other financial workflows. Circle says its network uses USDC for transaction fees, offers sub-second transaction finality by design, and supports applications built with familiar Ethereum-compatible development tools. These features could appeal to developers who want predictable transaction costs and established smart-contract tooling, although actual performance and adoption will depend on how the network operates under real-world demand.

More than 100 applications at launch

Arc's initial ecosystem includes decentralized finance protocols, trading applications, digital wallets and blockchain infrastructure providers. Aave and Morpho are among the lending and credit-market projects associated with the launch, while Uniswap and other trading protocols provide access to onchain markets. The ecosystem also includes wallet providers and developer infrastructure companies intended to make it easier for users and builders to connect with applications on the network.

The presence of established projects gives developers and users a starting point beyond the blockchain itself. For decentralized applications, a network's value depends not only on its technical specifications but also on the availability of wallets, liquidity, reliable infrastructure, developer tools and services that people actually want to use. Arc's launch ecosystem provides several of these components, though the number of announced applications alone does not establish how many will attract sustained activity.

USDC fees aim to make transaction costs more predictable

One of Arc's main design choices is to denominate transaction fees in USDC rather than requiring users to acquire a separate, volatile network token just to pay gas fees. For applications that process payments or financial transactions, a dollar-denominated fee model may make operating costs easier to estimate and explain to customers. It may also simplify workflows for businesses already using stablecoins.

Arc also targets sub-second finality, meaning the network is designed to confirm transactions quickly and provide a clear point at which they are considered final. For payment applications, exchanges and financial services, rapid confirmation can improve the user experience. However, finality does not eliminate smart-contract risk, wallet security problems, application failures or the possibility of losses caused by incorrect transactions.

AI tools could lower the barrier to building dApps

Alongside the mainnet launch, Circle introduced Arc Studio, an AI-powered coding agent intended to help developers turn ideas into applications that include smart contracts and application logic. Circle also introduced Arc App Kits, a software development kit designed to simplify common onchain functions such as payments, swaps, onramps and yield-related integrations.

These tools target a familiar challenge in decentralized application development: implementing blockchain functionality often requires specialized knowledge of smart contracts, transaction handling and integration with wallets or financial services. By providing assisted code generation and reusable software components, Circle aims to reduce some of that development work. Generated code still requires independent review, security testing and appropriate auditing before it should be trusted with real assets.

Circle is also developing infrastructure for AI agents that can carry out economic tasks, such as managing payments or executing transactions on behalf of users and businesses. Arc's design reflects the company's view that automated software will increasingly interact with financial systems directly. The practical value of these capabilities will depend on safeguards around permissions, spending limits, identity, privacy and transaction verification.

Institutional participation is part of the strategy

Circle announced a founding validator cohort that includes organizations such as BlackRock, the Depository Trust & Clearing Corporation, Mastercard, Visa, Standard Chartered and other financial or market-infrastructure firms. These participants are part of Arc's planned network operations and ecosystem, although their involvement should not be interpreted as an endorsement of every application built on the chain.

Arc combines an open application ecosystem with a permissioned validator model. That structure is intended to address some institutional requirements while allowing developers to build blockchain applications. It also raises questions that users and builders should evaluate, including validator governance, network resilience, privacy controls and how the system may evolve as participation expands.

What Arc's launch means for the dApp market

Arc enters a competitive market where established blockchain networks already host large decentralized application ecosystems. Its ability to attract developers will depend on more than a strong launch announcement: applications need users, useful services, sufficient liquidity, dependable infrastructure and clear reasons to choose Arc over alternatives.

Developers may be particularly interested in the combination of USDC-based fees, Ethereum compatibility and integrated application-building tools. For businesses, the network's focus on payments and financial workflows could provide another environment for experimenting with stablecoin settlement and onchain services. For everyday users, the key measures will be usability, security, transaction reliability and whether applications deliver tangible benefits.

The public mainnet launch is therefore a starting point rather than proof of long-term success. The next indicators to watch include sustained application activity, developer adoption, network performance, liquidity and whether Arc's AI-assisted tools make it meaningfully easier to create secure decentralized applications. Those results will determine whether the network becomes a significant dApp platform or remains one of many competing blockchain ecosystems.

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BlockchainSmart Contracts

Ethereum Delays Glamsterdam Test After Smart Contract Risks Emerge

Ethereum developers have postponed the planned Glamsterdam upgrade on the Hoodi test network after researchers identified potential risks involving how existing smart contracts handle failed operations. The Ethereum Foundation announced the delay on October 22, 2026, removing the previously scheduled October 26 activation while developers investigate how proposed changes to gas accounting could interact with contracts already deployed on the network.

The decision highlights a major challenge in blockchain development: protocol upgrades must improve performance without unexpectedly changing the behavior of applications that depend on existing execution rules. Although the issue has not been confirmed as an active exploit affecting Ethereum mainnet, the findings have prompted developers to conduct further compatibility and security reviews before rescheduling the test.

Why Ethereum postponed the Glamsterdam upgrade

The concern centers on Ethereum Improvement Proposals EIP-8037 and EIP-8038, which affect gas accounting and the costs associated with contract execution and database growth. Gas is the unit Ethereum uses to measure computational work and certain operations. Smart contracts rely on predictable execution behavior, including what happens when a transaction runs out of gas or a called contract fails.

Security researchers at ChainSecurity reported that the proposed changes could alter how some contracts behave when an operation fails. In particular, a contract designed to catch an error and continue with another step might have a different amount of gas available under the new rules. Depending on its design, that could change whether the failure-handling logic completes or the entire transaction reverts.

The reverse problem is also possible: some operations that previously completed within an expected gas budget could require more gas under the proposed accounting rules. That could cause certain transactions to fail even when the application was designed around the earlier cost assumptions. These are compatibility concerns that need to be assessed against real contract logic, not proof that every existing contract is vulnerable.

What the findings mean for existing smart contracts

Smart contracts often depend on carefully structured error handling. Developers may intentionally rely on a failed internal operation causing a complete transaction rollback, preventing a partial state change from being recorded. If a protocol upgrade changes the amount of gas remaining after an operation is undone, some of those assumptions may no longer hold as expected.

ChainSecurity's analysis described mechanisms through which the proposed changes could affect contract execution. CoinDesk reported that the researchers had demonstrated the potential behavior, but had not publicly established that a major production protocol was exploitable as a result. Ethereum's testnet delay should therefore be understood as a precautionary engineering decision rather than evidence that user funds are currently being stolen through this issue.

For developers, the episode reinforces the importance of testing contracts against upcoming protocol changes. Applications that depend on low-level gas behavior, complex error handling, or interactions between multiple contracts may need particular attention during upgrade testing. Security reviews should examine not only whether code compiles and passes ordinary tests, but also whether its assumptions remain valid under the new execution rules.

Glamsterdam's broader network goals remain important

The Glamsterdam upgrade is part of Ethereum's continuing effort to improve the network's capacity and execution architecture. Its planned changes include enshrined proposer-builder separation and block-level access lists, alongside adjustments to gas pricing intended to better reflect the costs of execution and state growth.

The upgrade had already activated on the Sepolia testnet on October 6. Hoodi was scheduled to provide another public testing stage, including a planned increase in its gas limit to 200 million. The postponement removes that scheduled activation and the associated gas-limit change until developers establish a revised plan.

The Ethereum Foundation has not announced a replacement Hoodi activation date. It has also clarified that the postponement concerns the test network and does not set a mainnet activation date. Ethereum mainnet users and ETH holders do not need to take action solely because of this announcement.

What developers and users should watch next

The next important milestone is a revised testing schedule accompanied by clear guidance for node operators, validators, and application developers. Operators running Hoodi infrastructure should follow the Ethereum Foundation's latest instructions and check that their execution and consensus clients reflect the postponed activation rather than the superseded October 26 schedule.

Smart contract teams should monitor the EIP discussions and relevant security analyses, then test applications against updated specifications and client implementations before any future activation. The extent of any required changes will depend on each application's code and its reliance on the affected gas-accounting behavior.

The delay demonstrates why major blockchain upgrades require more than performance benchmarks. Ethereum must also preserve predictable contract execution across a large ecosystem of applications that may have been written years before a proposed change. A careful postponement can give developers time to investigate unexpected interactions before they reach a live network.

For the wider blockchain industry, the episode is a reminder that protocol-level improvements and smart contract compatibility are closely connected. The outcome of the Glamsterdam review will matter not only for Ethereum's upgrade schedule, but also for how developers evaluate the safety of future changes to widely used blockchain infrastructure.

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BlockchainWeb3

DTCC Launches Tokenization Service as Wall Street Moves Securities Onchain

The Depository Trust & Clearing Corporation (DTCC) has launched its DTCC Tokenization Service, a new platform designed to connect traditional financial-market infrastructure with blockchain-based assets. Announced on October 28, 2026, the service allows eligible participants to create tokenized representations of securities held by its subsidiary, The Depository Trust Company (DTC). The launch marks a significant development in the growing effort to bring real-world financial assets onto digital networks.

DTCC says the service is intended to help eligible market participants move assets between traditional and tokenized forms, deliver tokenized entitlements to supported digital wallets, and improve the movement of collateral across financial markets. The company says the tokenized representations retain the ownership rights, investor protections, and economic entitlements associated with their traditional counterparts. Access is limited to eligible participants; the launch does not mean every investor can immediately tokenize or trade every security.

Major financial institutions are preparing to participate

According to DTCC, 20 DTC participants have signed agreements to access the service. The list includes major financial institutions and market firms such as Bank of America, Barclays, Citi, J.P. Morgan, Morgan Stanley, State Street, UBS, and Fidelity Investments. DTCC says additional participants will be onboarded over time, suggesting that the initial launch is a foundation for a broader institutional rollout rather than an unrestricted public service.

The scale of the underlying infrastructure helps explain why the announcement matters. DTCC reports that DTC holds more than $114 trillion in assets under custody. Bringing tokenized representations of eligible securities into an established financial-market framework could help institutions explore blockchain-based settlement and collateral workflows without abandoning the protections and operating structures associated with traditional securities custody.

Which blockchain networks does the service use?

DTCC says the service currently connects with the Canton Network and its private Besu network. The company plans to add further blockchain networks in 2027. This multi-network approach is intended to support interoperability between conventional financial systems and digital-asset infrastructure, although the practical reach of that interoperability will depend on future integrations, participant access, and the rules governing each asset and network.

The company developed the service with input from more than 150 firms through its digital-assets industry working group. DTCC also says it and more than 30 firms completed initial limited-production trades and onchain transactions before the public announcement. These earlier trials provided a testing phase ahead of the service's formal launch.

What tokenized securities could mean for investors

Tokenization represents an asset or an entitlement to an asset as a digital token recorded on a blockchain or another distributed ledger. In securities markets, the approach could support more flexible transfer processes, new collateral-management options, and connections between financial applications that currently operate on separate systems. Supporters also see potential for more efficient settlement and broader access to digital-market infrastructure.

However, tokenization does not automatically make an asset available to everyone, remove market risk, or guarantee instant settlement in every situation. Access rules, custody arrangements, liquidity, legal rights, network compatibility, and regulatory requirements remain important. The DTCC announcement concerns a service for eligible participants and DTC-custodied assets, not a blanket authorization for all stocks to trade freely across all public blockchains.

A significant step, but adoption will take time

The launch follows regulatory engagement and earlier testing. DTCC says DTC received a no-action letter from the U.S. Securities and Exchange Commission in December 2025 concerning a defined tokenization service for eligible assets, including Russell 1000 constituents, certain exchange-traded funds, and U.S. Treasury securities. The scope of that regulatory position and the conditions attached to it remain important when assessing what the service can support.

The next milestone will be whether participating institutions move from initial access and testing into sustained production use. The planned addition of more blockchain networks in 2027 could broaden the service's reach, but its real-world impact will depend on onboarding, technical integration, regulatory compliance, and demand from market participants.

For the wider Blockchain and Web3 sector, the launch offers a concrete example of distributed-ledger technology being integrated into established financial infrastructure. Rather than replacing traditional securities markets overnight, DTCC's approach aims to connect existing custody and investor-protection systems with tokenized representations. The pace and scale of adoption will become clearer as the service expands.

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Blockchain

Tokenized Stocks Move Closer to Mainstream as SEC Opens New Onchain Trading Path

The traditional stock market is moving another step toward blockchain infrastructure. On September 17, 2026, the U.S. Securities and Exchange Commission introduced a temporary “Innovation Exemption” designed to facilitate the permissioned trading of certain tokenized National Market System stocks through specialized onchain venues.

The development gives blockchain technology a more direct role in regulated securities markets. Instead of treating tokenization only as a digital representation of an existing asset, the new framework creates a controlled environment in which tokenized stocks can be traded through Tokenized Securities Venues, or TSVs.

What the SEC's New Framework Changes

Under the SEC order, qualifying Tokenized Securities Venues can receive temporary conditional relief from the definition of an exchange under the Securities Exchange Act. The framework is intended to support trading of tokenized NMS stocks through permissioned automated market makers and liquidity pools.

The exemption is not an unrestricted opening of the U.S. stock market to any blockchain project. The SEC has attached specific conditions covering the assets that can be traded, venue operations, smart contracts, liquidity providers and transparency requirements.

Blockchain Becomes Part of the Trading Infrastructure

One of the most significant technical requirements is that smart contracts used by qualifying venues must be auditable, public and deployed on a public, permissionless distributed ledger.

That requirement puts blockchain technology directly into the infrastructure supporting the trading environment. It also creates a bridge between traditional securities systems and programmable financial networks capable of recording transactions on distributed ledgers.

The SEC's framework also requires a tokenized stock available on a qualifying venue to provide holders with the same rights and privileges as the equivalent traditional class of stock. This condition is intended to connect the blockchain representation with the underlying security rather than treating the token as an unrelated digital asset.

Why Tokenized Stocks Matter

Tokenization can potentially change how financial assets are issued, transferred, traded and recorded. Blockchain-based systems can provide programmable transaction rules and a shared ledger while reducing the need to reconcile separate records between market participants.

The SEC has specifically highlighted tokenization's potential to modernize areas such as issuance, trading, transfer, settlement and ownership records. However, the current exemption is temporary and conditional, meaning the technology will be tested within defined regulatory boundaries rather than receiving unrestricted approval.

Automated Market Makers Enter the Securities Conversation

Another important element is the use of automated market maker liquidity pools. These systems are widely associated with decentralized finance, but the SEC framework creates a controlled environment for their use with certain tokenized securities.

Qualifying venues can use permissioned liquidity pools to bring together buyers and sellers. Liquidity providers can also receive limited regulatory relief under specific conditions when they contribute proprietary capital in the form of tokenized NMS stock.

This creates an interesting convergence between traditional market infrastructure and technologies that originally became popular in decentralized finance.

There Are Still Significant Restrictions

The new framework does not mean every stock can immediately become a freely tradable blockchain token. The SEC has imposed limits on eligible symbols and trading volume, along with requirements for transparency and operational controls.

A qualifying venue must also coordinate trading interruptions with the underlying stock's primary listing exchange. In addition, venues must provide public information about their operations and trading activity.

The exemption is scheduled to expire five years after publication, giving regulators time to observe how tokenized securities markets operate and collect information that could influence future policy.

The Bigger Blockchain Trend

The SEC development arrives as financial institutions and technology companies continue building blockchain infrastructure around stablecoins, tokenized funds, payments and real-world assets.

Circle, for example, launched the public mainnet of its Arc Layer 1 blockchain in September 2026 with a focus on financial markets, real-time money movement and institutional applications. Circle says the network launched with more than 100 applications and institutional or ecosystem builders, illustrating how blockchain infrastructure is increasingly being designed specifically around financial use cases.

Together, these developments point toward a blockchain industry increasingly focused on financial infrastructure rather than cryptocurrency trading alone.

What Comes Next

The immediate significance of the SEC exemption will depend on how market participants use the framework and what regulators learn from real-world activity. The SEC is also seeking public comment on the exemption and possible future changes.

For blockchain developers, financial institutions and digital-asset platforms, the development creates a new testing ground for tokenized securities infrastructure. For investors and market participants, the more important question will be whether blockchain-based trading can deliver practical improvements while maintaining the rights, safeguards and market protections associated with traditional securities.

The broader direction is clear: blockchain is increasingly being evaluated not simply as a cryptocurrency technology, but as infrastructure for programmable markets, digital ownership and continuous financial settlement.

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Tokenized Stocks Move Closer to Mainstream as SEC Opens New Onchain Trading Path

NextStackNews•Technology & innovation