Blockchain & Digital Assets Weekly Briefing - Week 19
- May 8
- 14 min read
Updated: May 19
Week ending 8th May 2026
Depository Trust & Clearing Corporation advances tokenization across Wall Street infrastructure, Solana Labs and Google Cloud launch stablecoin AI payments, State Street Corporation and Galaxy Digital bring yield-bearing stablecoin accounts onchain, while quantum security risks and AI-driven payment systems gain momentum through Amazon Web Services, Coinbase, and Stripe.
DTCC pushes tokenization into Wall Street’s core infrastructure.
Solana and Google Cloud launch Pay.sh to enable stablecoin-powered AI API payments.
State Street and Galaxy turn idle stablecoins into yield-bearing onchain cash accounts.
Quantum threat to Bitcoin gains urgency as new proposals and warnings emerge.
AWS pushes AI agents into payments with Coinbase and Stripe integration.
DTCC pushes tokenization into Wall Street’s core infrastructure
The push to bring blockchain-based assets into traditional finance took a major step forward this week after DTCC announced plans to begin limited production trading of tokenized securities in July 2026, ahead of a broader launch scheduled for October. The initiative is being developed through DTCC’s Depository Trust Company (DTC) subsidiary with support from more than 50 financial institutions spanning traditional finance and digital assets.
Why this matters goes beyond crypto headlines. DTCC is one of the most important pieces of global financial infrastructure. The firm processed more than $3 quadrillion in securities transactions in 2024 and its depository subsidiary, DTC, currently custodies roughly $114 trillion in assets for banks, brokerages, and asset managers worldwide. In practice, DTCC operates as the backbone of U.S. capital markets, handling the clearing and settlement infrastructure behind stocks, bonds, ETFs, and other securities traded across the financial system. DTCC has historically operated behind the scenes of the financial system, but it effectively serves as the plumbing of U.S. capital markets.
That scale gives the announcement unusual weight. Tokenization projects have existed for years across the crypto industry, but adoption has often remained fragmented and experimental. DTCC’s entry signals that blockchain-based settlement and tokenized securities are moving closer to institutional-scale implementation rather than remaining limited to pilot programs.
The new service will allow real-world assets held at DTC — including Treasury bills, bonds, equities, and ETFs — to be represented as blockchain-based tokens while maintaining the same ownership rights and investor protections as traditional securities. According to DTCC, the infrastructure is designed to operate across both public and private blockchain networks.
At the center of the rollout is the Canton Network, a blockchain infrastructure purpose-built for regulated financial markets. Developed by Digital Asset, Canton differs from most public blockchains by emphasizing privacy, compliance, and interoperability — requirements that banks and institutional asset managers consider essential when handling sensitive transaction data. Rather than exposing all activity on a fully transparent ledger, Canton allows market participants to share only the information relevant to counterparties involved in a transaction while still synchronizing settlement across the network.
The decision to use Canton highlights a broader trend emerging across institutional finance. Large financial firms increasingly want blockchain efficiency — including programmable assets, faster settlement, and automated collateral management — without sacrificing regulatory oversight or data confidentiality. Canton has already attracted firms including Goldman Sachs for tokenized finance initiatives, positioning itself as one of the leading blockchain networks tailored for traditional financial institutions.
Still, DTCC does not appear to be building a closed ecosystem around a single blockchain. The company said its tokenization framework is designed to connect with both private and public networks in the future, suggesting the infrastructure could eventually expand beyond Canton into broader interoperability with ecosystems such as Ethereum and other institutional-grade blockchains.
That possibility could prove important if tokenized securities scale globally. Rather than a future where one blockchain dominates capital markets, the industry increasingly appears to be moving toward a multi-chain model where different networks serve different functions. In that framework, permissioned systems like Canton could handle regulated settlement and compliance-heavy workflows, while public blockchains may evolve into liquidity, collateral, or distribution layers for tokenized assets.
In practical terms, tokenization converts financial assets into digital tokens that can move across blockchain rails. Supporters argue this could eventually enable faster settlement, 24/7 trading, improved collateral mobility, and greater operational efficiency compared with today’s market infrastructure, where many transactions still take days to fully settle.
The announcement also reflects a broader shift underway across Wall Street. Major firms including J.P. Morgan, BlackRock, BNY, and Franklin Templeton have increasingly expanded their tokenization efforts over the past year, particularly around tokenized Treasury products and blockchain-based settlement systems.
Even so, adoption remains early. Tokenized Treasuries currently represent only a small fraction of the roughly $30 trillion U.S. Treasury market. Industry participants continue to point to regulatory clarity as one of the biggest remaining hurdles before tokenized assets can scale across mainstream financial markets.
Still, DTCC’s involvement changes the conversation. The company is not a startup experimenting on the edges of finance; it is a central market utility deeply embedded in how global securities markets function. If tokenization becomes integrated into DTCC’s core settlement infrastructure, blockchain technology could move from niche digital asset markets into the operational backbone of traditional finance itself.
Solana and Google Cloud launch Pay.sh to enable stablecoin-powered AI API payments
The Solana Foundation, the non-profit organization supporting the Solana blockchain ecosystem, has introduced Pay.sh in collaboration with Google Cloud, marking a new push into machine-to-machine commerce and AI infrastructure. The launch aims to let autonomous AI agents pay for cloud services and APIs directly using stablecoins on the Solana network, without requiring traditional accounts, subscriptions, or billing systems.
Solana is currently one of the largest blockchain ecosystems for stablecoin settlement and high-speed transactions, processing thousands of transactions per second with relatively low fees. The network has increasingly positioned itself around payments and infrastructure rather than solely crypto trading activity.
Pay.sh is designed as a gateway layer that allows AI agents to discover and purchase access to APIs on a pay-per-request basis. According to the announcement, supported services include Google Cloud products such as Gemini, BigQuery, Vertex AI, Bigtable, and Cloud Run. The system also integrates with more than 50 community API providers covering areas such as e-commerce, blockchain infrastructure, communications, and market intelligence.
The infrastructure relies on stablecoin payments settled on Solana and uses open protocols including x402 and the Machine Payments Protocol (MPP). Instead of using API keys or subscription billing, a connected Solana wallet functions as the identity and payment credential for the AI agent. The payment itself authorizes access to services.
Under the hood, Pay.sh operates through a proxy layer hosted on Google Cloud infrastructure. The system is intended to maintain enterprise-grade controls such as rate limiting, quotas, and access management while simplifying the payment and authentication process for developers and autonomous software agents.
The launch reflects a broader industry trend toward integrating AI systems with financial infrastructure. As AI agents increasingly perform automated tasks across multiple services, developers and cloud providers are exploring ways to support machine-native payments without relying on traditional invoicing or manual account management.
The announcement strengthens Solana’s growing alignment with the x402 ecosystem, an open-source protocol initiative under the Linux Foundation. Earlier this year, the Solana Foundation joined the x402 Foundation alongside companies including Stripe, Visa, Google, and Microsoft.
While Pay.sh is still in its early stages, the initiative highlights how blockchain infrastructure is increasingly being positioned as a backend payment layer for AI services and cloud computing. Whether the model gains traction will likely depend on developer adoption, transaction volume growth, and whether enterprises view stablecoin-based API settlement as more efficient than conventional billing systems.
State Street and Galaxy turn idle stablecoins into yield-bearing onchain cash accounts
State Street Investment Management — the asset management arm of State Street Corporation — has partnered with Galaxy Digital to launch a blockchain-based liquidity fund designed for institutional investors holding large amounts of stablecoins.
Founded in 1792, State Street is one of the oldest and most influential financial institutions in the United States. The Boston-based firm is widely considered one of Wall Street’s largest custody and asset servicing banks, overseeing over $53 trillion in assets under custody and administration and more than $5 trillion in assets under management. The company plays a central role in global financial markets, providing infrastructure, custody, fund administration, and ETF servicing to some of the world’s largest asset managers, pension funds, sovereign wealth funds, and institutional investors.
“State Street has played a leading role in market innovation for decades, from servicing mutual funds to launching ETFs, and we’re proud to continue that role as digital assets reshape market infrastructure,” said Yie-Hsin Hung, president and chief executive officer of State Street Investment Management.
The new product, called the State Street Galaxy Onchain Liquidity Sweep Fund (SWEEP), is designed to address a growing issue in digital asset markets: what institutions should do with large pools of stablecoins when they are not actively being used.
In traditional finance, companies rarely leave excess cash sitting idle in bank accounts. Instead, treasury teams typically move unused capital into low-risk money market or Treasury-backed funds that generate yield while keeping funds accessible. SWEEP brings that same concept onto blockchain infrastructure.
Rather than holding dormant stablecoins such as PayPal USD (PYUSD) in wallets earning little or no return, institutional investors can move those assets into the tokenized fund, where the capital is invested into traditional short-term securities and cash-equivalent instruments. Investors receive a yield while maintaining relatively fast access to liquidity.
The key difference is that the system operates “onchain”. Ownership of fund shares is represented through blockchain-based tokens, while subscriptions, redemptions, and transfers occur on blockchain networks that operate continuously rather than only during traditional banking hours.
The fund initially launches on the Solana blockchain, with future integrations planned for Ethereum and Stellar. Galaxy is providing the blockchain infrastructure and tokenization layer, while State Street Bank and Trust Company will custody the underlying securities portfolio. Chainlink technology will publish the fund’s daily net asset value directly onchain, while Anchorage Digital will custody stablecoin assets.
The structure reflects a broader institutional push toward tokenized real-world assets (RWAs), particularly Treasury-backed liquidity products that combine traditional low-risk investments with blockchain-based settlement infrastructure.
For crypto-native firms, the appeal is largely operational. Trading firms, hedge funds, market makers, and DAOs often hold significant stablecoin balances between trades or collateral movements. Traditionally, those funds either remained idle or required movement through banks and offchain money market products to generate yield. Tokenized liquidity funds aim to streamline that process by allowing capital to remain inside blockchain ecosystems while still earning returns tied to traditional financial instruments.
The launch also underscores how large financial institutions increasingly view blockchain infrastructure not simply as a speculative crypto market, but as a potential operational layer for capital markets and treasury management. State Street has steadily expanded its digital assets strategy in recent years, including prior crypto ETF partnerships with Galaxy, while Galaxy continues positioning itself as infrastructure provider for institutional tokenized finance.
The product enters a rapidly growing market for tokenized Treasury and cash-management products, an area many analysts view as one of blockchain’s clearest institutional use cases because it addresses a practical problem: how to make idle digital cash productive while preserving liquidity and enabling 24/7 settlement.
Quantum threat to Bitcoin gains urgency as new proposals and warnings emerge
Bitcoin’s $1.6 trillion ecosystem is entering a new phase in its long-running debate over quantum computing risks, as industry leaders and researchers push for concrete plans to protect the network from future cryptographic attacks. Recent proposals from crypto investment firm Paradigm and infrastructure startup Project Eleven highlight growing concern that the industry may need to begin preparing years before quantum computers become powerful enough to threaten Bitcoin wallets.
At the center of the discussion is a technical reality: Bitcoin relies on cryptographic signatures that could eventually be broken by sufficiently advanced quantum computers. While today’s machines are nowhere near capable of doing this at scale, researchers and developers increasingly argue that migrating Bitcoin to post-quantum security standards could take so long that preparation must begin well in advance.
Speaking at Consensus Miami, Project Eleven CEO Alex Pruden warned that upgrading Bitcoin’s cryptography would be significantly more difficult than previous network upgrades such as Taproot. According to Pruden, the challenge is not just technical but operational, because the transition would require coordination across wallets, exchanges, custodians, institutions, miners, and millions of users worldwide.
The comments come as developers debate how vulnerable Bitcoin actually is to a future “Q-Day” — the hypothetical moment when quantum computers become capable of breaking current encryption systems. Some estimates cited by researchers suggest millions of Bitcoin could eventually be exposed if public-key cryptography is compromised.
At the same time, researchers emphasize that the threat remains theoretical for now. Current quantum computers are still far from the scale needed to break Bitcoin’s encryption in real-world conditions, and many experts believe such systems may still be years away. However, recent warnings from researchers at Google and cybersecurity agencies have accelerated discussions around post-quantum security standards across the technology sector. Please find more details on the topic in our deep research article - Quantum Breakthroughs in 2026: Implications for Bitcoin Security and the Ethereum Ecosystem.
One of the newest proposals comes from Paradigm General Partner Dan Robinson, who introduced a framework called Provable Address-Control Timestamps, or PACTs. The proposal is designed to help Bitcoin holders prove ownership of wallets before quantum-capable attackers emerge, without requiring them to move their funds today.
The idea specifically targets a controversial issue in the Bitcoin community: how to protect dormant or early-era wallets, including those believed to belong to Bitcoin creator Satoshi Nakamoto. Many older wallets exposed their public keys through earlier transaction formats, making them theoretically more vulnerable to future quantum attacks. Some estimates place more than 1 million BTC in Satoshi-linked wallets alone.
PACTs would allow users to create cryptographic timestamps proving they controlled a wallet before a quantum event occurs. If Bitcoin later adopts emergency measures restricting vulnerable addresses, those users could potentially reclaim their coins using post-quantum proofs. Supporters say the proposal offers a middle ground between protecting legacy holders and avoiding immediate disruptive changes to the Bitcoin network.
Still, the broader debate remains unsettled. Some Bitcoin developers argue that introducing post-quantum protections too early could add unnecessary complexity and fragmentation to the network. Others believe waiting too long could leave the ecosystem exposed if breakthroughs in quantum computing accelerate unexpectedly.
Academic research also suggests the migration challenge could be substantial. A 2024 paper examining Bitcoin’s transition to post-quantum cryptography estimated that a full upgrade process could require extensive coordination and prolonged downtime depending on the implementation model chosen.
For now, no immediate consensus has emerged around how or when Bitcoin should adopt post-quantum protections. But the conversation is increasingly shifting away from whether quantum computing poses a long-term risk and toward how the industry would realistically execute a migration at global scale if the threat becomes imminent.
AWS pushes AI agents into payments with Coinbase and Stripe integration
Amazon Web Services (AWS) — the world’s largest cloud infrastructure provider with an estimated $142 billion annual revenue run rate and roughly 28% to 30% of the global cloud market — is expanding its artificial intelligence ambitions beyond chatbots and workflow automation by introducing payment capabilities for AI agents. AWS remains ahead of major rivals Microsoft Azure and Google Cloud, which hold roughly 21% and 14-15% market share respectively, according to multiple industry estimates. Together, the three hyperscalers control nearly two-thirds of global enterprise cloud spending.
AWS announced a preview of “Amazon Bedrock AgentCore Payments”, a new feature designed to let autonomous AI agents pay for APIs, digital services, web content, and other software resources without direct human intervention.
The launch positions AWS at the center of what many technology firms are calling the emerging “agentic economy” — a model where AI systems not only retrieve information and execute tasks, but also complete transactions independently. To support that infrastructure, AWS partnered with Coinbase and Stripe, two major fintech companies providing the wallet infrastructure and payment rails behind the service.
The move also comes as competition intensifies among cloud providers to build financial infrastructure for autonomous AI systems. Just days before AWS’s announcement, Google Cloud partnered with the Solana Foundation to launch “Pay.sh”, a stablecoin-based API payment gateway that allows AI agents to access and pay for services such as Gemini, BigQuery, Vertex AI, and Cloud Run on a pay-per-request basis using Solana wallets. The system removes traditional account setup, API keys, and subscription billing, instead using stablecoin payments as the authentication layer itself.
The first major cloud-provider implementations are leaning heavily toward stablecoin-based payment rails for autonomous AI agents, even though the broader agentic payments ecosystem is evolving toward a mix of crypto and traditional fiat systems.
At launch, AWS’s system supports micropayments using stablecoins through the x402 protocol, an emerging machine-to-machine payment standard built around the HTTP 402 “Payment Required” response code. According to Coinbase, the protocol has already processed more than 169 million payments across over 590,000 buyers and 100,000 sellers, signaling growing experimentation around automated digital commerce.
The growing interest in stablecoin-based infrastructure reflects the limitations of traditional payment rails for autonomous software systems. Card networks and bank transfers were built for human-driven commerce, not AI agents making thousands of small, automated transactions between services. Stablecoin systems such as x402 are instead designed for ultra-small payments, instant settlement, cross-border transfers, API monetization, autonomous internet commerce, and machine-to-machine transactions where conventional payment systems become inefficient or too costly.
Under the new setup, developers building AI agents on Amazon Bedrock can connect either a Coinbase wallet or Stripe’s Privy wallet infrastructure, fund those wallets with fiat currency or stablecoins, and define transaction limits for each session. AWS says AgentCore then handles authentication, payment routing, protocol negotiation, and transaction monitoring automatically while keeping spending within predefined guardrails.
The company argues this removes one of the biggest barriers to deploying autonomous AI systems in enterprise environments: financial control and compliance. Rather than giving agents unrestricted access to funds, AWS says transactions remain governed by spending caps, user authorization requirements, and centralized observability tools that allow companies to audit every payment an agent makes.
The timing reflects a broader shift across the AI industry. Companies increasingly envision AI agents as software entities capable of completing end-to-end workflows autonomously, from research and procurement to scheduling and purchasing. AWS highlighted potential use cases including paying for real-time data access, interacting with APIs, purchasing premium digital content, or coordinating services between agents.
For Coinbase, the partnership represents another attempt to position stablecoins and blockchain-based payments as foundational infrastructure for internet-native commerce. The exchange said the integration enables near-instant USDC settlement on networks such as Base and Solana, with transaction costs measured in fractions of a cent.
Stripe, meanwhile, framed the announcement as part of a larger push to build financial infrastructure for AI systems. Through its Privy wallet technology, the company aims to give developers a way to embed programmable wallets directly into autonomous applications.
Still, the concept of autonomous agents handling payments raises unresolved questions around governance, fraud prevention, privacy, and operational oversight. Researchers and developers have increasingly warned that agentic payment systems may introduce new security vulnerabilities, particularly around prompt injection attacks, transaction authorization, and automated financial decision-making.
The emergence of autonomous payment systems has also triggered growing debate around governance and operational controls. In a recent analysis, AWS Community Builder Alexey Vidanov argued that current agent-payment systems focus heavily on transaction execution but still lack mature governance frameworks for runtime decision-making. He warned that spending limits alone may not prevent agents from making unnecessary or poorly timed purchases during exploration phases, especially in multi-step workflows where payments may already be irreversible if later tasks fail. Vidanov argues that future agent-payment systems will likely require additional safeguards such as phased execution rules, approval thresholds, transactional rollback mechanisms, and auditable “proof traces” explaining why each payment decision was allowed. His broader point is that as AI agents gain the ability to transact autonomously, governance infrastructure may become just as important as the payment rails themselves.
Recent academic research on stablecoin infrastructure has also highlighted broader concerns around consumer protection, dispute resolution, and operational resilience as blockchain-based payment systems move into mainstream commercial applications.
For now, AWS is limiting AgentCore Payments to preview availability in select regions, including US East (N. Virginia), US West (Oregon), Frankfurt, and Sydney. The company says micropayments are only the first step, with future plans extending toward broader AI-driven commerce flows such as booking travel, reserving hotels, and completing purchases across merchant platforms.
WHAT WE ARE READING (OR WATCHING)
The Cryptography Frontier
The metaverse isn't a place: Why Animoca’s Yat Siu says the future is 100 billion AI agents
The Stablecoin Standard
Sabadell to join European stablecoin consortium, other Spanish banks may too
The Nakamoto Engine
JPMorgan Says Bitcoin Is Replacing Gold as Investors’ Top Debasement Hedge
The Ethereum & Altcoin Atlas
Solv ditches LayerZero for Chainlink to protect tokenized Bitcoin
On the Launchpad
Morgan Stanley Debuts Crypto Trading, Undercuts Rivals on Price
The Tokenized Economy
Bank of Italy says EU should consider tokenised SEPA payments
The Global Pulse
Emerging picture shows Reform gains as Labour counts losses in heartland seats
Beyond the Chain
Chainlink Co-Founder Sergey Nazarov Appointed to CFTC Innovation Advisory Committee
This article is for informational purposes only and should not be considered financial advice. Please do your own research or consult a licensed financial advisor before making investment decisions.
