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Computers
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Harnessing the Blockchain Technology in Unveiling Futuristic Applications (2nd Edition)
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Harnessing the Blockchain Technology in Unveiling Futuristic Applications (2nd Edition)

A special issue of Computers (ISSN 2073-431X). This special issue belongs to the section "Blockchain Infrastructures and Enabled Applications".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 2048

Special Issue Editor

Dr. Raman Singh

E-Mail Website
Guest Editor
School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK
Interests: next-generation networking; blockchain technologies; intrusion detection; network security; cyber security; deep learning; IoT
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Summary

In recent years, blockchain technology has garnered significant attention for its potential to revolutionize traditional systems and processes across various industries. Blockchain, originally developed as the underlying technology for cryptocurrencies like Bitcoin, has transcended its initial application to emerge as a versatile tool with far-reaching implications. Its core principles of decentralization, immutability, and cryptographic security make it an ideal candidate for addressing the challenges faced by modern society. By leveraging blockchain's distributed ledger technology, organizations can solve some of the long-standing challenges in the field, like managing data in zero-trust cooperative entities.

In this context, exploring the impact of blockchain technology on various aspects of modern society, for example, in healthcare, supply chain management, smart cities, smart industry, cyber security, etc., becomes imperative. By delving into the potential synergies between blockchain and modern-day applications, organizations can unlock new possibilities for achieving the United Nations’s Sustainable Development Goals (UN SDGs). This research seeks to elucidate the transformative power of blockchain to reshape the future of modern social landscapes, offering insights into how this innovative technology can be harnessed to navigate the challenges of an increasingly interconnected digital world.

The topics of interest for this Special Issue include, but are not limited to, the following:

  • Applications of blockchain technology in smart cities;
  • Applications of blockchain technology in intelligent manufacturing, industry 5.0, and industry 6.0;
  • Supply chain management using blockchain technology;
  • Blockchain technology and cyber security;
  • Using quantum computing in blockchain technology;
  • Blockchain technology in the finance sector and cryptocurrency;
  • Blockchain technology in the healthcare sector;
  • Supporting the Internet of Things using blockchain technology;
  • World Wide Web 3 (WWW3).

Dr. Raman Singh
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Computers is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • blockchain technology
  • smart contracts
  • smart city
  • decentralized application
  • World Wide Web 3

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Related Special Issue

Published Papers (2 papers)

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Research

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27 pages, 1313 KB  
Article
RepuTrade: A Reputation-Based Deposit Consensus Mechanism for P2P Energy Trading in Smart Environments
by Xingyu Yang, Ben Chen and Hui Cui
Computers 2026, 15(3), 199; https://doi.org/10.3390/computers15030199 - 23 Mar 2026
Viewed by 517
Abstract
Current peer-to-peer (P2P) energy trading systems face important challenges in decentralised trading environments, particularly in managing participant trustworthiness, preventing dishonest behaviour, and mitigating transaction defaults. These limitations reduce transaction reliability and weaken trust among participants in community-scale energy trading markets. Although P2P energy [...] Read more.
Current peer-to-peer (P2P) energy trading systems face important challenges in decentralised trading environments, particularly in managing participant trustworthiness, preventing dishonest behaviour, and mitigating transaction defaults. These limitations reduce transaction reliability and weaken trust among participants in community-scale energy trading markets. Although P2P energy trading enables communities to exchange locally generated renewable energy in smart environments, existing platforms often lack effective mechanisms to regulate participant behaviour and support reliable transactions. This paper proposes RepuTrade, a blockchain-based P2P energy trading platform tailored for community-scale microgrids. The proposed framework integrates a reputation-based consensus mechanism and a dynamic collateral management scheme that is directly linked to participant reputations such that trading reliability can be strengthened through behavioural incentives. In addition, a reputation-driven matching algorithm preferentially pairs highly reputable participants to improve market stability and trust. Simulation-based evaluation, involving 200 users across 8 trading rounds, shows that the RepuTrade framework consistently achieves higher trade success rates (92–99% compared to 83–95% in the baseline) and reduces defaults by more than 40% (27–44 vs. 55–72 per run). The results further reveal a strong negative correlation between user reputation and default probability, indicating that higher reputation is associated with a lower likelihood of dishonest behaviour. Overall, under the simulated settings considered in this study, the proposed framework improves transaction reliability and execution efficiency by reducing failed trades and lowering consensus validation latency. These findings contribute to the design of trust-aware decentralised energy trading mechanisms and provide simulation-based insights for developing more reliable and transparent community-scale renewable energy markets. Full article
(This article belongs to the Special Issue Harnessing the Blockchain Technology in Unveiling Futuristic Applications (2nd Edition))
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Review

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37 pages, 2011 KB  
Review
Quantum-Safe Blockchain: Mapping Research Fronts in Post-Quantum Cryptography, Quantum Threat Models, and QKD Integration
by Félix Díaz, Nhell Cerna, Rafael Liza and Bryan Motta
Computers 2026, 15(4), 240; https://doi.org/10.3390/computers15040240 - 14 Apr 2026
Viewed by 1212
Abstract
Quantum computing challenges the long-term security assumptions of blockchain systems that rely on classical public-key cryptography, motivating the adoption of post-quantum cryptography and quantum key distribution (QKD). This review maps research fronts at the intersection of blockchain and quantum-safe security, linking threat assumptions [...] Read more.
Quantum computing challenges the long-term security assumptions of blockchain systems that rely on classical public-key cryptography, motivating the adoption of post-quantum cryptography and quantum key distribution (QKD). This review maps research fronts at the intersection of blockchain and quantum-safe security, linking threat assumptions to post-quantum mechanisms, blockchain layers, and QKD positioning. Records were retrieved from Scopus and Web of Science using a two-block query and filtered through a PRISMA-guided workflow for bibliometric mapping. The final corpus comprises 648 journal articles and shows accelerated publication growth after 2023, with scientific production concentrated in a small set of leading countries. Keyword structures indicate that IoT-centric deployments dominate the semantic backbone, where authentication and intelligent methods co-occur with blockchain security primitives, while post-quantum and privacy-preserving constructs form a cohesive technical stream. QKD appears as a distinct but more specialized theme, typically discussed at the system level and shaped by infrastructure and scalability constraints. Overall, the literature is moving from conceptual risk articulation toward engineering integration; however, progress is limited by inconsistent reporting of threat models, post-quantum parameter sets, and ledger-level cost trade-offs, highlighting the need for auditable and reproducible evaluation. Full article
(This article belongs to the Special Issue Harnessing the Blockchain Technology in Unveiling Futuristic Applications (2nd Edition))
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