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s a systems engineering company, engaged in R&D in hash-based cryptography and distributed ledger technologies. It focuses on building core technology and value-added solutions that provide real-time situational awareness into the integrity state of electronic systems and data. Guardtime is one of the world’s leading blockchain technology companies, with its core technology KSI® Blockchain in production since 2008.

The KSI® blockchain stack enables its customers to know, and be able to forensically prove whether any part of their systems or stored electronic data and logs has been changed, either by insiders, external actors, or technical malfunction. It provides a mathematically tamper-evident audit trail and evidence for post-incident investigations, establishing who, what and when with forensic precision.

Guardtime’s international R&D division - with its hub in Estonia - is a team of cryptographers, researchers, engineers, scientists and analysts, with qualifications in both foundational and applied research. Guardtime is devoted to building breakthrough technologies and applications in cryptography and computer sciences.

With over 40 patents granted since 2007 and more pending, Guardtime has a proven track record in transforming foundational research into practical solutions, covering a number of research areas with practical use-cases for the government, military, healthcare, life sciences, finance, and supply chain, to name a few.

University of Tartu (UT) is the oldest and largest Estonian University (17000 students and 1800 academic staff) and the highest-ranked University in the Baltic States according both to the Times Higher Education and the QS World University rankings. UT’s Institute of Computer Science has 80 academic and research staff and 60 PhD students. It conducts research in the fields of software engineering, distributed systems, cryptography, theoretical computer science, data science, programming languages and natural language processing.



