Around the world, a quiet revolution is reshaping how nations manage money, identity, and trust — and at its core lies sovereign blockchain infrastructure.
The growing interest is driven by blockchain’s promise of innovation, faster settlements, fewer intermediaries, greater transparency, enhanced financial inclusion, increased foreign investment, and real-time auditing.
Despite blockchain technology’s tremendous transformative potential in modernizing financial systems, its adoption by sovereign nations remains limited due to concerns over regulatory control, privacy, and operational sovereignty.
To address these challenges, Sign is developing a blockchain infrastructure stack that provides governments with a comprehensive digital asset infrastructure including digital currency, stablecoin and digital ID that preserves their sovereign authority while enabling participation in the global digital economy.
Redefining Digital Sovereignty with the SIGN Stack
Sign is a blockchain technology company building a sovereign digital infrastructure for governments worldwide.
This will enable nations to deploy programmable systems for public benefit distribution. Moreover, governments can standardize citizen records to enhance interoperability with other nations while preserving data ownership, expose regional assets to the global financial market, and balance transparency with privacy.
At the core of this vision lies the SIGN Stack, a modular technology framework designed to help governments maintain complete operational control and regulatory authority while reaping blockchain’s inherent benefits.
The SIGN Stack is made up of three integrated layers that together form a secure and interoperable sovereign infrastructure.
The first one is a dual blockchain infrastructure that involves a customizable Layer 2 built on established public Layer 1 networks and a Hyperledger Fabric X-based permissioned network with Raft consensus for privacy-preserving CBDC operations.
This gives nations the flexibility to choose between transparent public operations and privacy-preserving financial infrastructure based on their specific use cases. At the same time, seamless bridging capabilities enable interoperability between both systems.
The second is the Sign DID Platform, a unified identity framework that bridges existing national identity layers and verifiable credentials with blockchain capabilities to securely create and verify attestations.
The third is a digital asset engine, which is a high-throughput system for the programmable disbursement of benefits, subsidies, and other government assets, with distribution supported across stablecoin and CBDC infrastructures.
With these integrated components, i.e., Sovereign Chain, Sign Protocol, and TokenTable, Sign is developing a framework that enables secure, efficient, and transparent delivery of public services on blockchain infrastructure. This way, the platform is tackling the key challenges hindering government adoption of blockchain technology, thus providing a practical path forward for the digital transformation of public services.
$25.5M Raise to Scale Sovereign Blockchain Infra for Nations
Recently, Sign closed a $25.5 million strategic investment round led by YZi Labs, with participation from IDG Capital. The newly raised capital will enable Sign to advance its mission of designing and implementing a resilient and secure blockchain infrastructure for governments worldwide.
Sign will utilize the funding to form new and strengthen existing strategic partnerships with leading ecosystem players to accelerate the development of the sovereign blockchain framework.
The fresh capital will also support the expansion of its strong technical team, which currently includes cryptographic experts from Cornell, Harvard, Columbia, and UC Berkeley. Sign’s focus is now on onboarding deep experience in existing financial systems in order to bridge the gap between legacy infrastructure and decentralized technology.
To help Sign build a powerful national-scale digital infra, YZi Labs, which manages over $10 billion worth of crypto-related assets, has made its second strategic investment, following its lead role in the company’s Series A round earlier this year, representing a strong conviction in Sign’s long-term vision and capabilities in the sovereign infrastructure space.
“While blockchain and sovereign nations may hold different ideological foundations, they can in fact benefit greatly from each other,” said Xin Yan, Co-founder and CEO of Sign. “Our goal is to deliver blockchain-based services to 50 million people in the first year, and to gradually shape a global protocol that connects nations through technology. There are only 192 clients in the world, and we’re moving fast.”
To achieve these ambitious goals, the project has already started collaborating with several governments, both technologically advanced and those in early stages of their digital transformation, to design and implement national-scale blockchain projects. These partnerships will aid Sign in securing steady revenue streams by obtaining franchise-like rights for upcoming national projects.
The project has built a global network dedicated to educating as well as advising, and empowering governments. Through this network, Sign provides technical expertise, policy guidance, and top-notch blockchain infrastructure solutions.
As a first mover in government blockchain adoption, Sign is redefining how nations build and manage digital infrastructure. With its sovereign blockchain optimized for operational control, backed by strong strategic investors and a world-class technical team, the company is well-positioned to accelerate global blockchain integration and usher in a new era of transparent, secure, and scalable national infrastructure.
