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Create a digital signature and stay in control of what happens with your documents and data.
sproof is a digital signature for your documents and data
- tamper-proof timestamping
- secure and unforgeable
- fully autonomous, no central authority
- signatures are selectively revocable and can be time-limited
- fully transparent and easily verifiable
- free verification at any time
3 Steps to Your Digital Signature
Step 1: Setup a public sproof profile for your institution
Create a public sproof profile for your institution, verify your domain and establish links to other institutions.
Step 2: Issue digitally signed documents and data, such as certificates or diplomas, invoices, etc.
Issue documents or register data in industrial applications with a unique signature and a timestamp. The digital document itself is not modified and can be handed to the receiver in any way.
Step 3: Anyone in possession of the document can easily check the integrity and authenticity of a document.
There is no need for a single trusted third party and no need for the issuer to be online during the verification process.
Join the Network
Setup a sproof profile and become part of the sproof network. The sproof network is a global platform where you can verify your domain and establish links to other institutions. This strengthens your own identity and allows your partners and customers to benefit from your reputation.
The sproof network builds a network of trust. You can use the connections in your network for easily verifying digitally signed documents from your partners and customers.
sproof for Universities
Documents issued by your institution represent your high standards and values. Fake documents carrying the name of your university, school or educational institution can therefore cause noticeable harm.
Watch this video to learn how Paracelsus Medical Private University benefits from sproof.
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.
Blog Posts
sproof is a new member of ICT Austria
sproof recently joined ICT Austria, a network of more than 25 internationally active IT companies headquartered in Austria. Founded in 2014, the association aims to bring the Austrian ICT industry into the top international field. The network is headed by Jochen Borenich, member of the Executive Board at Kapsch BusinessCom, Manfred Brandner, CEO of eee […]
sproof joins the German „Netzwerk Digitale Nachweise“
The Netzwerk Digitale Nachweise was founded in 2019 as part of the “blockchain” coordination project of the German IT planning council. Main focus is the use of blockchain technology for issuing and verifying certificates digitally. Together, proposals for Germany-wide standards are being developed. sproof is the only Austrian company on board. The network is coordinated […]
Have you tried the sproof testnet yet?
Discover digital signatures and the potentials of sproof at no risk with the sproof testnet: ➡️ Explore all sproof features ➡️ Play with timestamping a document ➡️ Ready to integrate sproof into your existing application? Use the testnet so see if everything’s working fine Get your free testnet profile now:https://sproof.io/try-sproof-for-free/
sproof joins Blockchain Bayern e.V.
The sproof GmbH has recently become a member of Blockchain Bayern. The non-profit association, chaired by Prof. Dr. Florian Matthes, provides an umbrella for various activities regarding blockchain and related technologies. With sproof as a member, information and networking events are now also taking place in Salzburg. Erich Höpoldseder from sproof is a member of […]
Invitation: EdTech Workshop for Universities on 16 January 2020
Learn more about sproof’s solution for digital certificates and diplomas at this educational technologies workshop! We cordially invite you to the EdTech workshop hosted by the Federal Ministry of Education, Science and Research aimed at all Austrian universities and third-level institutions: EdTech initiatives and tools to support tertiary educationPresentation & networking of initiatives, start-ups / […]
Meet the sproof team at the Summit Industrie 4.0 on 12 Dec 2019 in Linz
Are you looking for a solution to manage your audit trails? Come meet us together with COPA-DATA at the Summit Industrie 4.0, the yearly conference of the platform industry 4.0 Austria, in Linz! 🏭 🗓️ We are happy to look into your use cases and curious about your feedback 🔍 Summit Industrie 4.012 December 2019, […]
Three reasons why digital certificates require a public blockchain
When building blockchain-based applications, discussion often comes to the point of whether a public or private blockchain should be used. sproof clearly takes the position for public blockchains for tamper-proof digital certificates and documents. Here is why. sproof is a research-based company and our decisions are carefully evaluated and scientifically backed. These are the three […]
Developers: Why it will take you less than 60 minutes to integrate sproof’s digital document signatures in your software application
Integrating a new feature into your existing application in only 60 minutes sounds like wishful thinking to you? Here’s how sproof makes your wish come true: 1. Easy to use APITo issue secure digital documents in your institution or enterprise, all you need to do is as easy as an API call. Integrate sproof into […]
Dominik Engel: New Chief Research Officer at sproof GmbH
Dr. Dominik Engel, head of the Center for Secure Energy Informatics at Salzburg University of Applied Sciences, joins the management board of sproof. With the renowned IT-security and privacy expert Dominik Engel, sproof gets prominent support from its roots – the academic world. “As a spin-off from the Center for Secure Energy Informatics, we transfer […]