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Feature Papers in Blockchains 2025
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Feature Papers in Blockchains 2025

A special issue of Blockchains (ISSN 2813-5288).

Deadline for manuscript submissions: 31 December 2025 | Viewed by 9187

Special Issue Editors

Prof. Dr. Keke Gai

E-Mail Website
Guest Editor
School of Artificial Intelligence, Beijing Institute of Technology, Beijing 100081, China
Interests: cyber security; cloud computing; edge computing; blockchain
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Liehuang Zhu

E-Mail Website
Guest Editor
School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Interests: Internet of Things (IoT) security; applied cryptography; network security; computer security
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce this Special Issue entitled "Feature Papers in Blockchains 2025". This Special Issue will be a collection of high-quality papers from Editorial Board Members, Guest Editors, and leading researchers invited by the Editorial Office. Both original research articles and comprehensive review papers are welcome. All topics related to blockchain in various fields and applications are welcome. 

Dr. Keke Gai
Prof. Dr. Liehuang Zhu
Guest Editors

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. Blockchains is an international peer-reviewed open access quarterly 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 1000 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 and distributed ledger technology implementation
  • blockchain and cryptography
  • blockchain and digital currency
  • blockchain in finance
  • blockchain in management
  • Bitcoin and Ethereum
  • new applications of blockchain
  • emerging technologies and developments of blockchain
  • blockchain theory
  • blockchain for data exchange
  • non-fungible tokens (NFTs)
  • new architecture, frameworks, or models of blockchain
  • security and privacy in blockchain
  • blockchain advances in the 6G network
  • smart contract methods
  • blockchain-based business models
  • data governance in blockchain
  • blockchain and secure critical infrastructure
  • blockchain in the metaverse
  • cross-chain techniques
  • attacks and threats on blockchain

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

36 pages, 6347 KB  
Article
Proof-of-Solvency Implementation with Privacy Protection Using Blockchain
by Julien Riposo
Blockchains 2025, 3(4), 14; https://doi.org/10.3390/blockchains3040014 - 18 Nov 2025
Viewed by 502
Abstract
Trust in financial institutions hinges on the ability to prove solvency, yet recent crises have exposed the limits of audits and opaque governance. We introduce a practical protocol that enables crypto-exchanges and other financial actors to demonstrate real-time solvency without continuous third-party oversight, [...] Read more.
Trust in financial institutions hinges on the ability to prove solvency, yet recent crises have exposed the limits of audits and opaque governance. We introduce a practical protocol that enables crypto-exchanges and other financial actors to demonstrate real-time solvency without continuous third-party oversight, while preserving transparency and regulatory alignment. Complemented by a Particles model that fragments transactions to protect privacy and enhance liquidity, this framework integrates solvency, privacy, and governance into a unified standard. We argue that it represents a potential revolution in the financial industry. Full article
(This article belongs to the Special Issue Feature Papers in Blockchains 2025)
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25 pages, 4239 KB  
Article
Design and Implementation of a Blockchain-Based Secure Data Sharing Framework to Enhance the Healthcare System
by Shrawan Kumar Sharma and Firoj Parwej
Blockchains 2025, 3(3), 10; https://doi.org/10.3390/blockchains3030010 - 29 Aug 2025
Viewed by 1967
Abstract
The integration of blockchain technology into healthcare offers a robust solution to challenges in secure data sharing, privacy protection, and operational efficiency. Effective exchange of sensitive patient information among hospitals, clinics, insurers, and researchers is essential for better outcomes and medical advancements. Traditional [...] Read more.
The integration of blockchain technology into healthcare offers a robust solution to challenges in secure data sharing, privacy protection, and operational efficiency. Effective exchange of sensitive patient information among hospitals, clinics, insurers, and researchers is essential for better outcomes and medical advancements. Traditional centralized systems often suffer from data breaches, inefficiency, and poor interoperability. This paper presents a blockchain-based secure data-sharing framework tailored for healthcare, addressing these limitations. The framework employs a hybrid blockchain model, combining private and public blockchains: the private chain ensures fast transactions and controlled access, while the public chain fosters transparency and trust. Advanced cryptographic methods—such as asymmetric encryption, hashing, and digital signatures—safeguard patient data and maintain integrity throughout the datalifecycle. Smart contracts automate processes like consent management, access control, and auditing, ensuring dynamic permission enforcement without intermediaries. Role-based access control (RBAC) further limits access to authorized entities, enhancing privacy. To tackle interoperability, standardized data formats and protocols enable smooth communication across diverse healthcare systems. Large files, such as medical images, are stored off-chain, with only essential metadata and logs on the blockchain. This approach optimizes performance, scalability, and suitability for large-scale healthcare deployments. Full article
(This article belongs to the Special Issue Feature Papers in Blockchains 2025)
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32 pages, 694 KB  
Article
Preserving Whistleblower Anonymity Through Zero-Knowledge Proofs and Private Blockchain: A Secure Digital Evidence Management Framework
by Butrus Mbimbi, David Murray and Michael Wilson
Blockchains 2025, 3(2), 7; https://doi.org/10.3390/blockchains3020007 - 17 Apr 2025
Viewed by 4823
Abstract
This research presents a novel framework and experimental results that combine zero-knowledge proofs (ZKPs) with private blockchain technology to safeguard whistleblower privacy while ensuring secure digital evidence submission and verification. For example, whistleblowers involved in corporate fraud cases can submit sensitive financial records [...] Read more.
This research presents a novel framework and experimental results that combine zero-knowledge proofs (ZKPs) with private blockchain technology to safeguard whistleblower privacy while ensuring secure digital evidence submission and verification. For example, whistleblowers involved in corporate fraud cases can submit sensitive financial records anonymously while maintaining the credibility of the evidence. The proposed framework introduces several key innovations, including a private blockchain implementation utilising proof-of-work (PoW) consensus to ensure immutable storage and thorough scrutiny of submitted evidence, with mining difficulty dynamically aligned to the sensitivity of the data. It also features an adaptive difficulty mechanism that automatically adjusts computational requirements based on the sensitivity of the evidence, providing tailored protection levels. In addition, a unique two-phase validation process is incorporated, which generates a digital signature from the evidence alongside random challenges, significantly improving security and authenticity. The integration of ZKPs enables iterative hash-based verification between parties (Prover and Verifier) while maintaining the complete privacy of the source data. This research investigates the whistleblower’s niche in traditional digital evidence management systems (DEMSs), prioritising privacy without compromising evidence integrity. Experimental results demonstrate the framework’s effectiveness in preserving anonymity while assuring the authenticity of the evidence, making it useful for judicial systems and organisations handling sensitive disclosures. This paper signifies notable progress in secure whistleblowing systems, offering a way to juggle transparency with informant confidentiality. Full article
(This article belongs to the Special Issue Feature Papers in Blockchains 2025)
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