Top Research Papers on Blockchain

This article studies and analyzes how blockchain oracles provide final feedback to smart contracts and survey blockchain oracle technologies and mechanisms regarding data integrity and correctness and investigates their structure and principles by classifying the Blockchain oracle implementation techniques into two major groups voting-based strategies and reputation-based ones.

It is contended that blockchain may be fueling the renewable energy and powering the authors' energy sustainability, and the possible future development trend of energy blockchain is offered.

Blockchain technology is a ground breaking disruptive technology in production and logistics systems. However, how it affects logistics and production over the past years as well as what should be examined next remain unclear. This paper fills this gap by first discussing the evolution of blockchain (from Blockchain 1.0 to Blockchain 5.0). Then, we examine the related production and logistics management literature and highlight the current states of knowledge in the field. We review in more details the analytical and empirical studies and uncover the research methods, topics, insights and impl...

The findings indicated that the integration challenges influencing the effective operations of blockchain, AI, and IoT as a single system involve security, scalability, accountability, and trust of communications.

This article serves to address research gaps by conducting semi-structured interviews with 18 informants who have had at least three years of project experience with blockchain-enabled exchanges to uncover three unique aspects of blockchain that enable trust in exchange vs. a traditional exchange.

Blockchain technologies have generated enthusiasm, yet their potential to enable new forms of governance remains largely unexplored. Two confronting standpoints dominate the emergent debate around blockchain-based governance: discourses characterized by the presence of techno-determinist and market-driven values, which tend to ignore the complexity of social organization; and critical accounts of such discourses which, while contributing to identifying limitations, consider the role of traditional centralized institutions as inherently necessary to enable democratic forms of governance. In thi...

A survey focusing on sharding in Blockchains in a systematic and comprehensive way, with detailed comparison and quantitative evaluation of major sharding mechanisms, along with insights analyzing the features and restrictions of the existing solutions.

Since Facebook officially changed its name to Meta in Oct. 2021, the metaverse has become a new norm of social networks and three-dimensional (3D) virtual worlds. The metaverse aims to bring 3D immersive and personalized experiences to users by leveraging many pertinent technologies. Despite great attention and benefits, a natural question in the metaverse is how to secure its users' digital content and data. In this regard, blockchain is a promising solution owing to its distinct features of decentralization, immutability, and transparency. To better understand the role of blockchain in the m...

A blockchain consists of an ordered list with nodes and links where the nodes store information and are connected through links called chains, which supports the availability of a public ledger.

A homomorphic encryption-based Blockchain for circuit copyright protection that effectively addresses the issues in the protection of circuit copyright transactions, such as low security of private data, low efficiency in transaction data storage, cooperation and supervision.

This paper focuses on sharding as a promising first layer solution to the scalability issue and proposes a taxonomy based on committee formation and intra-committee consensus, and presents a performance-based comparative analysis of the advantages and disadvantages in existing scalability solutions.

Current state of the art on post-quantum cryptosystems and how they can be applied to blockchains and DLTs are studied, as well as their main challenges.

In recent years of development, the interest in Blockchain technology and the essentials of its application have made it popular. The efficiency and availability of this technology have made it a widely accepted technology. Blockchain technology has completely changed the present-day concept of centralization. Different methodologies are used for the purpose of interfacing and monitoring the transactions in blockchain technology. Decentralization, immutability, transparency, and peer to-peer communication help to address the current trends effectively. This paper presents a comprehensive surve...

This paper surveyed the mainstream consensus algorithms systematically, which is classified into five categories according to its leader election model, i.e., election-based, proof- based, randomness-based , committee-based and hybrid.

The article traces the evolution of blockchain, from its inception in cryptocurrency to its development as a versatile tool with diverse potential applications, and explores fundamentals of block chain systems, its limitations, various applications, applicability etc.

There is a need for a systematic literature review of educational projects based on the blockchain, and the artistic gap between the two is reviewed, to improve the implementation of technology in the field of education by using the blockchain feature.

An overview of the characteristics, mode of operation, and applications of blockchains in various domains such as transportation, commerce and industry, privacy and security, the financial sector, government, education, healthcare, and the Internet of Things (IoT) is provided.

This paper attempts to cover the existing scaling solutions for blockchain and classify them by level and makes comparisons between different methods and list some potential directions for solving the scalability problem of blockchain.

The application of blockchain technology for securing cloud storage is reviewed, which provides significant inputs in the search for the ideal approach to storing and processing cloud data.

This survey will help healthcare professionals, decision makers, and healthcare service developers to gain technical and intuitive insights into the security and privacy of healthcare blockchains in terms of concepts, risks, requirements, development and deployment technologies and systems.