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di Angelo, Monika (author), Durieux, T. (author), Ferreira, João F. (author), Salzer, Gernot (author)Blockchain programs (also known as smart contracts) manage valuable assets like cryptocurrencies and tokens, and implement protocols in domains like decentralized finance (DeFi) and supply-chain management. These types of applications require a high level of security that is hard to achieve due to the transparency of public blockchains....journal article 2024
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Li, T. (author), Xu, L. (author), Erkin, Z. (author), Lagendijk, R.L. (author)With the fast development of e-commerce, there is a higher demand for timely delivery. Logistic companies want to send receivers a more accurate arrival prediction to improve customer satisfaction and lower customer retention costs. One approach is to share (near) real-time location data with recipients, but this also introduces privacy and...conference paper 2024
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The book is organized into three distinct parts. The first part focuses on data-driven digital technologies and delves into how their capabilities can facilitate the transition to a circular built environment. Essential aspects such as building information modeling (BIM), digital twins, geographical information systems (GIS), scanning...book 2024
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Rukanova, B.D. (author), van Engelenburg, S.H. (author), Ubacht, J. (author), Tan, Y. (author), Geurts, Marco (author), Sies, Maarten (author), Molenhuis, Marcel (author), Slegt, Micha (author), van Dijk, Dennis (author)Public value creation is traditionally considered as the citizens' collective expectations with respect to government and public services. Recent e-government literature indicates that what exactly constitutes public value in digital government is still debated. Whereas previous research acknowledges aspects such as co-production and the...journal article 2023
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Schlatt, Vincent (author), Guggenberger, Tobias (author), Schmid, J. (author), Urbach, Nils (author)Blockchain-based systems become increasingly attractive targets for cybercrime due to the rising amount of value transacted in respective systems. However, a comprehensive overview of existing attack vectors and a directive discussion of resulting research opportunities are missing. Employing a structured literature review, we extract and...journal article 2023
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Esgin, Muhammed F. (author), Ersoy, O. (author), Kuchta, Veronika (author), Loss, Julian (author), Sakzad, Amin (author), Steinfeld, Ron (author), Yang, Xiangwen (author), Zhao, Raymond K. (author)In this work, we study the blockchain leader election problem. The purpose of such protocols is to elect a leader who decides on the next block to be appended to the blockchain, for each block proposal round. Solutions to this problem are vital for the security of blockchain systems. We introduce an efficient blockchain leader election method...conference paper 2023
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Gordijn, Daan (author), Kromes, R.G. (author), Giannetsos, Thanassis (author), Liang, K. (author)This work aims to provide a more secure access control in Hyperledger Fabric blockchain by combining multiple ID’s, attributes, and policies with the components that regulate access control. The access control system currently used by Hyperledger Fabric is first completely analyzed. Next, a new implementation is proposed that builds upon the...conference paper 2023
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Grishkov, I. (author), Kromes, R.G. (author), Giannetsos, Thanassis (author), Liang, K. (author)This paper offers a prototype of a Hyperledger Fabric-IPFS based network architecture including a smart contract based encryption scheme that meant to improve the security of user’s data that is being uploaded to the distributed ledger. A new extension to the self-encryption scheme was deployed by integrating data owner’s identity into the...conference paper 2023
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Nasrulin, B. (author), Ishmaev, G. (author), Decouchant, Jérémie (author), Pouwelse, J.A. (author)Manipulation of user transactions by miners in permissionless blockchain systems is a growing concern. This problem is a pervasive and systemic issue that incurs high costs for users of decentralised applications and is known as Miner Extractable Value (MEV). Furthermore, transaction manipulations create other issues such as congestion,...conference paper 2023
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Blanco, Adrian Fuertes (author), Shi, Z. (author), Roy, Debraj (author), Zhao, Zhiming (author)The emergence of blockchain technologies has created the possibility of transforming business processes in the form of immutable agreements called smart contracts. Smart contracts suffer from a major limitation; they cannot authenticate the trustworthiness of real-world data sources, creating the need for intermediaries called oracles....conference paper 2023
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Akkaoui, R. (author), Stefanov, Alexandru (author), Palensky, P. (author), Epema, D.H.J. (author)The solar industry in residential areas has been witnessing an astonishing growth worldwide. At the heart of this transformation, affecting the edge of the electricity grid, reside smart inverters (SIs). These IoT-enabled devices aim to introduce a certain degree of intelligence to conventional inverters by integrating various grid support...journal article 2023
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van Duin, Ron (author), Dharmasastha, Suraj (author), Piest, Sebastian (author)The application of blockchain has great potential in the logistics industry, especially in because transportation involves multiple actors and a considerable numbers of transactions. This paper presents the results and findings of case study research at XL Businesspark as part of the STEERS project and adds 6 use cases for blockchain technology...book chapter 2022
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Kofos, A. (author), Ubacht, J. (author), Rukanova, B.D. (author), Korevaar, G. (author), Kouwenhoven, Norbert (author), Tan, Y. (author)Sustainability is high on the agendas of public and private organizations. Governments are setting targets for reducing the use of virgin raw materials in products and to eliminate waste. To accelerate the transition towards a Circular Economy (CE) policymakers are launching instruments. However, policy instruments, such as financial incentives...journal article 2022
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Mhaisen, N. (author), Allahham, Mhd Saria (author), Mohamed, Amr (author), Erbad, Aiman (author), Guizani, Mohsen (author)Service provisioning systems assign users to service providers according to allocation criteria that strike an optimal trade-off between users' Quality of Experience (QoE) and the operation cost endured by providers. These systems have been leveraging Smart Contracts (SCs) to add trust and transparency to their criteria. However, deploying...journal article 2022
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Yu, Xinghuo (author), Tang, Changbing (author), Palensky, P. (author), Colombo, Armando (author)Imagine you want to send money to a friend overseas. Wouldn't it be good if you didn't have to pay hefty fees to the intermediaries, and your friend received the funds very quickly? Now imagine ordering parts to make a product in your manufacturing plant. Wouldn't it be great if you were able to verify where each part comes from and have...journal article 2022
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Rikken, O.K. (author), Janssen, M.F.W.H.A. (author), Roosenboom-Kwee, Z. (author)Blockchain-based Decentralized Autonomous Organizations (DAOs) are systems for transacting and storing value by automatically executing a function without the need for trusted, centralized authorities. Participative budgeting requires voting about budget allocation by communities and is often confronted with issues in trust and transparency. Yet...conference paper 2022
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Akkaoui, R. (author), Stefanov, Alexandru (author), Palensky, P. (author), Epema, D.H.J. (author)The concept of the internet of energy (IoE) emerged as an innovative paradigm to encompass all the complex and intertwined notions relevant to the transition of current smart grids towards more decarbonization, digitalization and decentralization. With a focus on the two last aspects, the amount of intelligent devices being connected in a...journal article 2022
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Smart contracts in energy systems: A systematic review of fundamental approaches and implementationsKirli, Desen (author), Couraud, Benoit (author), Robu, Valentin (author), Salgado-Bravo, Marcelo (author), Norbu, Sonam (author), Andoni, Merlinda (author), Antonopoulos, Ioannis (author), Negrete-Pincetic, Matias (author), Flynn, David (author), Kiprakis, Aristides (author)Given the ongoing transition towards a more decentralised and adaptive energy system, the potential of blockchain-enabled smart contracts for the energy sector is being increasingly recognised. Due to their self-executing, customisable and tamper-proof nature, they are seen as a key technology for enabling the transition to a more efficient,...review 2022
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Madhwal, Yash (author), Borbon-Galvez, Yari (author), Etemadi, N. (author), Yanovich, Yury (author), Creazza, Alessandro (author)The growth of the enterprise blockchain research supporting supply chain management calls for investigations of their impact and mindfulness of their design, use cases, and pilots. With a blockchain design for the Proof of Delivery (PoD) process management, this paper contributes to learning about performance measurement and the transaction...journal article 2022
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Luthra, Sunil (author), Janssen, M.F.W.H.A. (author), Rana, Nripendra P. (author), Yadav, Gunjan (author), Dwivedi, Yogesh K. (author)Purpose: Blockchain technology (BCT) can be used for a wide variety of applications across domains and can bring many benefits. BCT-based applications can be beneficial for the government as well as businesses. Despite the many promises, BCT implementation lags behind. The purpose of this research is to identify a roadmap of critical...journal article 2022