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Nasrulin, B. (author), Ishmaev, G. (author), Pouwelse, J.A. (author)Decentralized reputation schemes present a promising area of experimentation in blockchain applications. These solutions aim to overcome the shortcomings of simple monetary incentive mechanisms of naive tokenomics. However, there is a significant research gap regarding the limitations and benefits of such solutions. We formulate these trade-offs...conference paper 2022
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Stokkink, Q.A. (author), Ileri, Can Umut (author), Pouwelse, J.A. (author)Web3 networks are emerging to replace centrally-governed networking infrastructure. The integrity of the shared public infrastructure of Web3 networks is guaranteed through data sharing between nodes. However, due to the unstructured and highly partitioned nature of Web3 networks, data sharing between nodes in different partitions is a...conference paper 2022
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Stannat, A.W. (author), Ileri, Can Umut (author), Gijswijt, Dion (author), Pouwelse, J.A. (author)In a multi-agent system where agents provide quantifiable work for each other on a voluntary basis, reputation mechanisms are incorporated to induce cooperation. Hereby agents assign their peers numerical scores based on their reported transaction histories. In such systems, adversaries can launch an attack by creating fake identities called...conference paper 2021
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Stokkink, Q.A. (author), Stannat, A.W. (author), Pouwelse, J.A. (author)Successful classification of good or bad behavior in the digital domain is limited to central governance, as can be seen with trading platforms, search engines and news feeds. We explore and consolidate existing work on decentralized reputation systems to form a common denominator for what makes a reputation system successful when applied...conference paper 2020
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Otte, P.J. (author), de Vos, M.A. (author), Pouwelse, J.A. (author)TrustChain is capable of creating trusted transactions among strangers without central control. This enables new areas of blockchain use with a focus on building trust between individuals. Our innovative approach offers scalability, openness and Sybil-resistance while replacing proof-of-work with a mechanism to establish the validity and...journal article 2020
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de Vos, M.A. (author), Olsthoorn, Mitchell (author), Pouwelse, J.A. (author)Decentralized applications, also known as dApps, are the new paradigm for writing business-critical software. Recruiting developers with appropriate qualifications and skills for this activity is key, yet challenging. The main problem is that the portfolio of developers is usually scattered across centralized platforms like GitHub and LinkedIn,...conference paper 2019