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Profile: Jaromil


The 24th edition of Bitcoin Wednesday held on 3 June 2015 includes a presentation by Denis Roio on the D-CENT project’s e-democracy framework, called Freecoin. This effort includes a toolkit for building blockchain-based P2P currencies, in other words distributed systems that can be used to develop complementary credit circuits and a grass-roots clearing house.

Denis Roio, known as “Jaromil”, is both a researcher in the philosophy of technology and a software artisan.  Between 2011 and 2013 he was a contributor to Libbitcoin, a well-known implementation of free libraries and tools for Bitcoin that is completely independent of the Satoshi client code.  He is currently leading the EU-funded D-Cent project in which Blockchain technology is applied to (1) complementary currency governance systems and (2) digital distributed trust and authentication management systems.

Denis’ creations are recommended by the Free Software Foundation and redistributed by several GNU/Linux and BSD operating systems worldwide. He is also an active contributor to media theory discourses.


Since 2000 he has concentrated on building Dyne.org, a non-profit software house that collects the contributions of a growing number of socially engaged developers and artisans with efforts focussed on Dyne:bolic, a 100% free GNU/Linux distribution and software such as FreeJ, MuSE, HasciiCam, Tomb, Frei0r video plugins and ZShaolin. Since 2011 he has been involved in the development of Bitcoin and now also in the E project D-CENT on decentralised platforms for open democracy and social digital currencies.

He is completing his Ph.D. studies (Planetary Collegium T-Node). His lectures and articles mostly focus on privacy issues and the decentralized media. From 2006 to 2012 he led the R&D department of the Netherlands Media Art Institute. His achievements have been included in the “Purpose Economy” top 100 European social enterpreneurs (2014) and the “40 under 40” European young leaders (2012). He shared the Vilém Flusser Award with Brian Holmes at Transmediale (Berlin, 2009).

His Freecoin project aims to be a framework for remuneration and authentication supporting multi-sig and off-line transactions on top of multiple blockchain backends. It is open source, written in Clojure and consists of a REST API and a clean user interface, developed by Dyne.org and Thoughtworks Inc. (D-CENT). Denis welcomes developers to join this effort at Freecoin.ch/api.

Early Stage Investor, Bitcoin Business Strategy Architect and Project Leader for Complex Internet SolutionsSee generalseven.com for more info.

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PUBLISHED : May 25, 2015