Abstract— The flow of information among people in

Abstract— The flow of information among people in today’s world is essential. People need to exchange data, but they also need to store larger chunks of data for future retrieval. Various business schemes have grown by feeding themselves on these assumptions. Some of them provide the needed infrastructure, such as, cables or wireless base stations in case of GSM/LTE networks, while others provide complementary storage capabilities (cloud storage services). In this paper, we introduce a Fully Distributed GRIDNET protocol (FD-GRIDNET). It facilitates a solution to a problem of motivating users to intercede in a data exchange. MANET/DTN networks were envisioned as a target environment, however we do not restrain our protocol by design only to such. FD-GRIDNET is the first fully distributed data exchange protocol, which rewards intermediaries with a cryptocurrency, one created on behalf of the described communication system itself. It constitutes a communication system with a closed economy cycle, where acting as a router earns cryptocurrency, which in turn can be used for one’s own needs, such as, but not limited to – data transmission. Indeed, FD-GRIDNET can be said to facilitate a cryptocurrency of its own. It builds upon a proof-of-work concept, but introduces elements of proof-of-stake as well. Keywords— mobile networks; Ad-hoc networks; Disruption tolerant networks,consensus, cryptocurrency, P2P I. INTRODUCTION US Air Force established a wide area network in the early 60s, as a result of, seeking a system, which would survive a nuclear attack 9. In the late 80s commercial communication technology, had begun turning away from circuit switched networks towards, a more efficient, packet switched networking. Somewhere along the line a TCP/IP protocol stack was born laying a foundation to the INTERNETwork, world wide data packet exchange environment, we are so familiar with, today. Global data surveillance systems are no longer a subject of theoretical speculations. These are a matter of facts (PRISM) 10,11. It is a common believe that one should have a choice with whom he or she wants to share her private communication with, – be it the very fact of communication alone (metadata). Digital communication among people has come to rely almost exclusively on telecommunication companies. Whilst the system works well for most communication needs and is widespread enough in urban areas, it still suffers from inherent weaknesses of the trust based model. In many countries, telecom companies are forced by governments to record whole communication episodes or at least to facilitate storage of communication events – the so-called metadata. What is more, many rural areas in the world lack required infrastructure and so, they are not able to easily communicate at large distances at all. Various protocols and projects, including open-source, have been developed with the purpose of aiding low-cost communication among people; incorporating various types of MANET-style, or pocket-switched variations of networking, coupled by hardware, such as, Wi-Fi interfaces. Most, if not all previous approaches, however, lack a proper handling of privacy, security and what is also of key importance in our believe – they do lack a satisfactory and universal rewarding system for intermediaries. There have been multiple proposals to this dilemma, undertaking various angles. Some of which are based on reputation metrics, others appraise economic solutions; none of them however incorporate universal token, a wealth, which could be used beyond the needs of data exchange if such a need arises. What is more, none of them appraise a consensus mechanism which would allow for operation without reliance on a trusted-third-party. We believe, that relay nodes are a backbone of every distributed packet-switched type of networking and if they are to participate on their own will, providing a proper incentive to co-operate is of crucial importance. In game-theoretic terms, cooperation in mobile ad-hoc networks, but also in any other type of networking – where relay nodes are considered to be autonomous while not having clearly defined benefits from participation in data dissemination; poses a dilemma. Nodes may be managed by different authorities, having different priorities. To save battery, bandwidth and processing power, nodes should not forward packets for others. If, however a significant number of nodes adopts such stra