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The Hashgraph Group and Truesense: CITI Patent Application

In a remarkable collaboration, The Hashgraph Group AG and Truesense SRL have officially filed a European patent application for their innovative solution known as the Continuous Identity Trust Infrastructure (CITI). This groundbreaking technology seeks to redefine the landscape of identity verification by combining advanced ultra-wideband (UWB) sensing capabilities with decentralized digital identity.

A Novel Approach to Identity Verification

CITI represents a revolutionary advancement in verifying physical presence while prioritizing user privacy. By merging ultra-wideband sensing technology with decentralized identifiers (DIDs), CITI securely binds an individual’s physical location to an immutable digital identity credential. This is particularly timely as Europe is enhancing its regulatory framework to address the increasing demand for trusted and auditable identity solutions.

The Mechanics of CITI

At its core, CITI employs a sophisticated framework that ensures a high level of assurance regarding an individual’s presence at a specific location and time. The technology is characterized by:
1. UWB Sensing: This short-range, pulse-based radio technology achieves centimeter-level accuracy, effectively detecting physical presences through vital sign sensing.
2. Decentralized Identifiers: The individual’s presence data is cryptographically linked to their digital identity, stored within an ID wallet, ensuring privacy and compliance with European directives.
3. Zero-Knowledge Proofs: This cryptographic method allows for the verification of credentials without revealing the underlying personal or location data.

Through these interconnected systems, CITI can provide auditable credentials that stand up to scrutiny while ensuring the privacy of the individuals involved.

Aligning with European Regulations

The filing, submitted to the European Patent Office under the application number EP26425032, aims to support compliance with various European Union directives. This includes alignment with the European Blockchain Services Infrastructure (EBSI) and adherence to standards put forth by eIDAS2. By integrating with the EU Digital Identity Wallet framework, CITI addresses the urgent need for secure digital identity solutions in light of evolving regulations.

This innovative approach also resonates with Europe's NIS2 Directive, emphasizing cybersecurity and auditability as top priorities for organizations operating across the continent. As EU member states prepare to implement digital identity wallets by the end of 2026, CITI is positioned to play a critical role in facilitating this transition, linking physical identities to digital credentials securely.

Expanding Applications Across Industries

The potential applications of CITI span multiple sectors, including finance, healthcare, and entertainment. For instance, in regulated environments such as hospitals, CITI could restrict access to only those with valid credentials, thereby securing sensitive areas. In the entertainment realm, the issuance of credentials tied to verified physical presence could significantly reduce fraud at events, enhancing overall security and user experience.

As an example, when attending events in a smart city or using UWB-equipped venues, a digital identity wallet combined with CITI could allow for instant attendance verification. This automation not only minimizes the need for physical access badges but also strengthens privacy through controlled credential sharing.

The Future of Identity Trust Infrastructure

With the increasing emphasis on digital sovereignty and security in Europe, CITI stands at the forefront of innovation in identity verification technology. The collaborative efforts between The Hashgraph Group and Truesense are a testament to their commitment to developing a privacy-preserving infrastructure that meets regulatory demands without compromising user privacy.

Stefan Deiss, CEO of The Hashgraph Group, highlights that this patent filing marks a significant milestone in redefining identity infrastructures. He notes, “CITI is the first solution that links real-world presence events to decentralized digital identities, aligning perfectly with our vision for the future of secure digital interactions.”

In conclusion, as the demand for secure digital identity solutions continues to grow, CITI is poised to lead the way in providing a reliable framework that addresses both current and future regulatory challenges across Europe. The synergy between The Hashgraph Group and Truesense signifies a robust approach to a more resilient and compliant digital identity ecosystem.