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sproof registry

Add a decentralized timestamp to your documents and data with sproof registry.

sproof sign

sproof sign is a free service for collecting digital signatures fast and easy.

Live Statistics

See all public information in the sproof App.

Management Team

Clemens Brunner, MSc
Chief Executive Officer

Clemens Brunner is a PhD student at the Computer Sciences Department at University of Salzburg since 2018 and a researcher at the Center for Secure Energy Informatics at Salzburg University of Applied Sciences since 2018. He received his Master’s degree in 2017 from University of Innsbruck. His current research interest is on decentralized trust management systems and privacy preserving authentication. 

Dr. Fabian Knirsch
Chief Technology Officer

Fabian Knirsch is a post-doctoral researcher at the Center for Secure Energy Informatics and a professor at the Salzburg University of Applied Sciences. He co-founded cappatec in 2015 and was a visiting scholar at the University of Southern California. He received his PhD in Computer Sciences from the University of Salzburg. His research interest is  currently on security and privacy and privacy-enhancing and decentralized technologies.

Erich Höpoldseder
Chief Operating Officer

Erich Höpoldseder has successfully implemented innovations and business development processes in various markets for international companies, e.g., Ski Data and Sony DADC for more than 25 years. He has excellent management, technical, sales and social skills and has filed several patents in the field of hologram design. He supports products that improve the quality of life of people and contribute to greater safety.

Dr. Dominik Engel
Chief Research Officer

Dominik Engel is a professor at the Salzburg University of Applied Sciences in Austria, where he heads the Center for Secure Energy Informatics. He holds a PhD degree in Computer Science from the University of Salzburg and a venia docendi in Applied Informatics at the same university. He was a researcher at the Universities of Bremen and Salzburg and product manager at Sony DADC. His current research interests include methods for enhancing privacy, security and end-user trust.

Membership and Partners

sproof is an Austrian-based technology company.

sproof is a member of the Startup Salzburg Factory.

sproof is a member of the FH Salzburg Startup Center.

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