National blockchain projects have moved from fringe experiments to serious statecraft. Around the world, governments are no longer only regulating private cryptocurrencies. Many now design and deploy their own national blockchain infrastructure to anchor digital identity, public records, and even central bank digital currencies.
These initiatives sit at the crossroads of technology, monetary policy, and geopolitics. Some focus on payments. Others secure land registries, health records, or education credentials. All of them ask the same question: if the internet has a “public core”, should nations build a public blockchain core as well?
This article maps how 18 countries are building national blockchain infrastructure, what problems they hope to solve, and the early lessons emerging from these experiments.
What National Blockchain Actually Means
From public crypto networks to national blockchain infrastructure
In the early days, “blockchain” largely meant public networks like Bitcoin and Ethereum. Anyone could join, validate transactions, or deploy code. That openness helped innovation, but it also created volatility, regulatory tension, and governance questions.
A national blockchain is a different animal. It is:
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State-backed: designed or overseen by public authorities.
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Permissioned: only approved nodes or institutions can validate transactions.
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Purpose-built: tailored to specific use cases like identity, registries, or payments.
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Integrated: connected to existing government systems and legal frameworks.
In many countries, the national blockchain does not replace existing digital infrastructure. Instead, it adds a cryptographic audit layer on top of it. The blockchain timestamps and secures records so that officials can prove nothing has been tampered with, while existing systems continue to handle day-to-day operations.
The European vision of a shared blockchain for public services follows a similar logic, but a regional scale. Nodes are hosted by public institutions and together form a shared, rule-based network for digital services such as verifiable diplomas or business credentials.
In short, national blockchain infrastructure looks less like a wild crypto frontier and more like a secure, state-run data and transaction layer.
Why governments want their own national blockchain
Governments see three main advantages:
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Sovereignty and control
National blockchain platforms keep critical data and financial rails within domestic or regional jurisdiction, rather than relying entirely on foreign cloud providers or unregulated platforms. -
Data integrity and auditability
By design, blockchains make it harder to alter records without leaving a trace. For public services, that tamper-evident trail is attractive for fighting fraud and improving trust. -
Efficiency and interoperability
Shared ledgers can reduce reconciliation work between agencies, cut paperwork, and enable cross-border services. Credentials can move more easily between universities, companies, and government departments.
At the same time, national blockchain projects promise programmable money and assets through CBDCs and tokenisation. That opens up new possibilities, from instant settlement of government bonds to conditional subsidies and automated tax credits.
18 Countries Building Their Own National Blockchain Infrastructure
The landscape is fluid and political. Some of the following projects are already live. Others sit at the strategy or pilot stage. Together, they show how diverse countries building national blockchain platforms really are.
Estonia: KSI-secured e-government as a national blockchain backbone
Estonia integrated blockchain into its digital governance system after a wave of cyberattacks. The KSI technology underpins databases in areas like health, justice, and property. It does not replace the digital data exchange backbone; instead, it adds a cryptographic audit trail to prove the integrity of records.
The result is a form of national blockchain infrastructure where citizens can check when their data was accessed and by whom. Estonia reports significant time and cost savings from its digitised public services, and its use of blockchain has become a global reference.
The European Blockchain Services Infrastructure operates as a network of nodes hosted by EU institutions and member states. Its aim is to provide a blockchain-based backbone for cross-border public services, including:
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Verifiable academic credentials
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Business identity and records
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Notarisation and document timestamping
EBSI moves the idea of a national blockchain to a supranational level. Instead of each country building its own siloed system, the EU is experimenting with a shared network anchored in common digital rules.
China: BSN and the bid for global infrastructure
China has made blockchain a strategic pillar of its digital economy plans. The Blockchain-based Service Network is designed as a nationwide and potentially global infrastructure for enterprise and government blockchain applications.
Alongside BSN, authorities have encouraged blockchain in courts, trade finance, and supply chains. The national blockchain narrative here is not only about domestic efficiency. It also carries an external dimension: exporting technical standards and platforms.
India: National Blockchain Framework and public-sector platforms
India’s National Strategy on Blockchain, supported by a National Blockchain Framework, highlights use cases in land records, agriculture, health, and education.
Pilot networks already underpin services such as property registration in some states. The long-term plan is to create a blockchain-as-a-service layer for government and approved private-sector use, connected to India’s wider digital public infrastructure for identity and payments.
Vietnam: NDAChain as a national blockchain platform
Vietnam has set out to build NDAChain as a national blockchain platform to support secure data verification and digital infrastructure. The platform is positioned as a foundational layer for government agencies and enterprises, with use cases ranging from document integrity to smart-city services.
This move aligns with the country’s broader digital transformation agenda, where blockchain is seen as a tool to strengthen trust in data-sharing systems and attract technology investment.
Singapore: From Project Ubin to a programmable digital Singapore dollar
Singapore’s central bank has run a multi-phase initiative called Project Ubin to test distributed ledger technology for interbank payments and securities settlement.
In parallel, Project Orchid explores the infrastructure needed for a retail digital Singapore dollar and “purpose-bound money” — programmable digital cash that can be spent only under specific conditions. These efforts sit alongside a national blockchain innovation programme that funds pilots in both the public and private sectors.
While Singapore has not yet switched on a single national blockchain network for all public services, it is deliberately building the technical and regulatory foundations for a resilient and flexible ecosystem.
Japan: DCJPY and preparations for a digital yen
Japan combines cautious central-bank policy with bold moves in the private sector. Japan Post Bank and partners plan to launch DCJPY, a blockchain-based tokenised deposit system. DCJPY will run on a permissioned blockchain and allow instant settlement of digital securities and other assets.
At the same time, the central bank continues a pilot program for a potential digital yen, testing system design and resilience. Together, these initiatives sketch the outlines of a national blockchain infrastructure for payments and securities, even though full legal tender status for a digital yen is still under discussion.
United Arab Emirates: Emirates Blockchain Strategy and beyond
The United Arab Emirates adopted a clear national blockchain strategy early. Government plans aim to migrate a large share of transactions to blockchain platforms, focusing on cost savings, faster processing, and better transparency.
Blockchain now appears in use cases ranging from business licensing and trade to real-estate registration. The country also positions itself as a regional hub for Web3 firms, blurring the line between national infrastructure, financial innovation, and private-sector experimentation.
Saudi Arabia: Building a unified national blockchain platform
Saudi Arabia’s digital transformation plans include a national blockchain platform designed to connect ministries and agencies and standardise blockchain use across the public sector.
Guidance documents highlight applications in identity, notarisation, and financial services, with pilots already underway. The goal is not just technical modernisation; it is part of a broader strategy to diversify the economy and position the kingdom as a regional digital hub.
Iran: Regulated blockchain platforms under tight state control
Iran appears as one of several states actively pursuing national blockchain infrastructure as a response to sanctions and financial isolation. Platforms such as Borna and other regulated networks seek to provide controlled environments for tokenised assets and financial services.
While details are often opaque, the overarching theme is clear: blockchain as a tool for both resilience and control, tightly linked to national monetary and regulatory policy.
Brazil: Digital ID and Drex infrastructure
Brazil has explored blockchain for national digital identity and tax systems, and its central bank is rolling out Drex, a digital real project using distributed ledger infrastructure.
The aim is to enable tokenised government securities, programmable payments, and interoperable financial services. In practice, that makes Drex a kind of national blockchain infrastructure for the financial sector, even if it is not always branded that way.
Nigeria: National blockchain policy and the eNaira
Nigeria has taken a dual approach. The National Blockchain Policy sets a framework for using blockchain across sectors such as identity, supply chains, and government services.
In parallel, the central bank launched the eNaira, a retail CBDC built on a permissioned blockchain. It is described as a digital version of the national currency, issued and regulated by the monetary authority. Adoption has been slower than hoped, but Nigeria’s policy choices show a clear intent to embed national blockchain infrastructure in both public services and finance.
The Bahamas: Sand Dollar and blockchain credentials
The Bahamas was the first country to launch a fully operational retail CBDC, the Sand Dollar, on a permissioned blockchain platform. It aims to modernise payments, improve financial inclusion across the islands, and strengthen resilience in the face of natural disasters.
The country has also implemented a blockchain-based credentialing system for education and professional certificates. Together, these systems look like a compact but comprehensive national blockchain ecosystem.
Turkey: National blockchain infrastructure and digital lira pilots
Turkey announced plans to build a national blockchain infrastructure, with the government and central bank exploring applications in public services and a digital lira.
Policy papers highlight use cases like identity, land registration, and cross-border trade. While political and economic volatility complicate implementation, the country treats national blockchain projects as part of a broader digital-sovereignty push.
Kazakhstan: Tokenised bonds and e-government on chain
Kazakhstan has been testing blockchain platforms for government bond issuance and digital government services. In some pilots, state bodies issue tokenised bonds on a national platform, creating a template for wider adoption in public finance.
These experiments position blockchain as a core part of the state’s capital markets and e-government modernisation agenda, with an eye on both domestic stability and regional competitiveness.
Venezuela: Petro and the politics of national crypto
Venezuela’s Petro is one of the most controversial national blockchain projects. Announced as an oil-backed state cryptocurrency, it runs on a government-controlled blockchain and was marketed as a way to bypass sanctions and create new funding channels.
In practice, adoption and transparency have been limited. But Petro remains a stark example of how a national blockchain can be used as a geopolitical tool as much as a technical upgrade.
United States: Towards a formal national blockchain strategy
The United States does not run a single nationwide government blockchain network, but it is moving towards a national blockchain strategy. Legislation has been introduced to direct federal agencies to support blockchain competitiveness and develop a coherent deployment framework.
Alongside this, executive orders and policy reports seek to coordinate agencies on digital assets and blockchain innovation. Federal and state pilots already use blockchain for procurement, grants tracking, and land registries. The strategic question for the US is whether to converge these pilots into more coherent national blockchain infrastructure or leave them as fragmented initiatives.
What These National Blockchain Projects Have in Common
Despite very different politics and technical choices, countries building national blockchain infrastructure share several themes.
Sovereignty, trust, and control
First, these projects are about sovereignty. Governments want:
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Control over key data and payment systems
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The ability to enforce rules on who can participate in networks
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Clear jurisdiction over disputes and enforcement
Some emphasise trust and interoperability. Others stress resilience against external pressure or sanctions. Different language, same underlying concern: who controls the rails of the digital economy?
Identity, credentials, and payments as “killer apps”
Across all these initiatives, three use cases repeat:
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Digital identity and registries
Land titles, company registries, and civil records secured by national blockchain systems. -
Verifiable credentials
Universities, professional bodies, and government agencies are issuing tamper-evident credentials for use at home and abroad. -
Payments and CBDCs
From the Sand Dollar to the eNaira and Drex, CBDCs and tokenised deposits sit on state-run or tightly regulated ledgers.
For policymakers, these are tangible, high-impact areas where national blockchain can demonstrate value quickly.
Risks, Criticisms and the Politics of National Blockchain
Centralisation risks and surveillance concerns
Critics argue that many national blockchain projects are blockchains in name only. They replace public decentralisation with tightly controlled permissioned systems. This can improve efficiency, but it also concentrates power.
Civil-liberties advocates worry that combining blockchain’s permanent records with broad state access could enable new forms of surveillance, especially when linked with digital ID and payments. The tension between auditability and privacy remains unresolved in many designs.
Interoperability, vendor lock-in and technical debt
National blockchain infrastructures risk becoming yet another silo. If each country builds its own stack with limited interoperability, cross-border services could become more, not less, complex.
There is also a risk of vendor lock-in, where governments depend heavily on a single technology provider for core infrastructure. Over time, maintaining and upgrading these platforms could create significant technical debt, especially when hardware, cryptographic standards, or regulatory requirements change.
Adoption challenges: the eNaira example
The gap between launching a national blockchain system and people actually using it can be wide. Nigeria’s eNaira illustrates this. Despite being an early CBDC, uptake has lagged as citizens question its usefulness and worry about trust, usability, and access.
Similar adoption questions hang over many CBDCs and national blockchain projects. Technology alone does not guarantee success; incentives, design, and communication matter just as much. If users do not see clear benefits over cash, cards, or existing apps, they may simply ignore the new rails.
What National Blockchain Infrastructure Means for Business and Citizens
New rails for finance and trade
For financial institutions, tokenised bonds, real-time settlement, and cross-border payment networks are not theoretical anymore. Projects in Asia, Europe, and the Americas show how national blockchain infrastructure can underpin the next generation of capital markets and trade finance.
Corporates that integrate early may benefit from faster settlement, richer data, and smoother compliance. Those that do not may find themselves locked out of more automated, rule-based ecosystems.
Implications for companies working with governments
For technology and consulting firms, national blockchain projects create new, but highly regulated, markets. Key implications include:
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Stronger security and compliance requirements
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Long procurement cycles and political scrutiny
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The need to support interoperability with legacy systems
At the same time, there is demand for user-friendly interfaces and middleware that hide blockchain complexity from citizens and civil servants. The most visible systems may not be the blockchains themselves, but the apps and portals built on top of them.
The new geopolitics of national blockchain
Finally, national blockchain infrastructure has a geopolitical dimension. Competing standards and governance models reflect broader struggles over who sets the rules of the digital economy.
Some countries want to export their platforms and technical standards. Others prefer open, modular architectures. As more countries building national blockchain platforms pick sides or mix approaches, the resulting map of cross-border interoperability will shape trade, finance, and data flows for years to come.
Final Thought: The Road Ahead for National Blockchain
National blockchain projects are still experimental. Some will succeed quietly as back-end plumbing. Others will stall or be rebranded. A few may remain cautionary tales.
What is clear is that national blockchain infrastructure is no longer a niche idea. From digital identity and land registries to CBDCs and verifiable credentials, governments now treat blockchain as a candidate for core public infrastructure.
For policymakers, the challenge is to balance control with openness, security with privacy, and ambition with realism. For businesses and citizens, the task is to understand how these new rails work — and to ensure they serve the public interest, not only the state.
