A decentralized system for academic credential verification using Ethereum blockchain and hybrid off-chain storage. The system replaces traditional manual verification by allowing institutions to issue digitally signed certificates whose cryptographic hashes are stored on-chain, ensuring immutability and tamper resistance. A dual-hashing approach (SHA-256 followed by Keccak-256) is used to enhance security and maintain compatibility with the Ethereum ecosystem. Credential files are stored off-chain (e.g., Supabase/IPFS) to reduce cost, while verification is performed by comparing hashes, achieving fast (under a few seconds) and reliable authentication. Overall, the paper demonstrates a scalable, secure, and efficient solution for real-world use cases such as academic admissions and recruitment.
The rapid development of digital infrastructures demands new approaches to managing born-digital data and enabling knowledge valorisation. Rather than constructing another digital Library of Alexandria, the SODHA-team is developing Project BLU, a framework for building a distributed information network. Drawing inspiration from Web3 principles—decentralisation, interoperability, and user-driven discovery—the project explores methods for metadata exchange between archives. This project engages with established metadata standards like the Data Documentation Initiative (DDI), exploring how they can support or be extended to enable interoperability. Instead of centralising data, Project BLU enables a shared, federated catalogue based on metadata-exchange accessible from any entry point. Researchers will navigate this network to discover and link data across disciplines, reducing access barriers and opening new avenues for metadata specialists. These include promoting and, where needed, upgrading DDI standards, linking interdisciplinary data, and bridging vocabularies across scientific fields. The interconnected nature of the system reinforces adherence to FAIR principles, improves access to both open and restricted data, and enhances knowledge reuse at national and international levels (e.g. linking CESSDA and DDI partners). This presentation outlines the conceptual foundations of Project BLU and its vision for transforming metadata into dynamic, actionable links across the research landscape.
Jamila Tileubaevna Arzieva, Ali Tileubaevich Arziev, Nawrızbay Baxtiyar ul Seytniyazov, Ilham Kongratbay ulı Tlemisov
THE ROLE OF ZERO-KNOWLEDGE PROOFS IN ENHANCING CRYPTOGRAPHIC PROTOCOLS // Universum: технические науки : электрон. научн. журн. Arzieva J.T. [и др.]. 2025. 10(139). URL: https://7universum.com/ru/tech/archive/item/21052
The digital age has changed the way we communicate, work, learn and even spend our free time.Devices such as smartphones, computers or tablets have become indispensable, and access to information is now faster and easier than ever.In the context of the digital age, the purpose of this research paper is to carry out a bibliometric analysis based on a number of 2,454 scientific papers identified in the Web of Science (WoS) database.The first objective is to identify the concept of cryptocurrencies in the specialized literature by carrying out a brief literature review, and the second objective is to carry out the actual bibliometric analysis on the same topic.The results obtained consist in developing a research agenda, which captures the stages of evolution and consolidation of the concept of cryptocurrencies in the specialized literature.
Hamza Salem, Hadi Salloum, Manuel Mazzara, Nursultan Askarbekuly · 6 authors
The rapid expansion of the non-fungible token (NFT) market has catalyzed new opportunities for artists, collectors, and investors, yet it has also unveiled critical challenges related to the storage and distribution of associated metadata. This paper examines the current landscape of NFT metadata storage, revealing a significant reliance on centralized platforms, which poses risks to the integrity, security, and decentralization of these digital assets. Through a detailed analysis of top-selling NFTs on the OpenSea marketplace, it was found that a substantial portion of metadata is hosted on centralized servers, making them susceptible to censorship, data breaches, and administrative alterations. Conversely, decentralized storage solutions, particularly the InterPlanetary File System (IPFS), were identified as a more secure and resilient alternative, offering enhanced transparency, resistance to tampering, and greater control for creators and collectors. This study advocates for the widespread adoption of decentralized storage architectures, incorporating digital signatures to verify ownership, as a means to preserve the value and trustworthiness of NFTs in an increasingly digital world. The findings underscore the necessity for NFT platforms to prioritize decentralized methodologies to ensure the long-term sustainability and integrity of the NFT
Blockchain technology has revolutionised how data is stored, managed, and secured. Its decentralised, transparent, and immutable nature presents unique advantages for data security. This paper delves into the application of blockchain technology in enhancing data security, exploring its fundamental principles, mechanisms, real-world applications, benefits, and challenges. By examining case studies across various industries, this paper aims to demonstrate the transformative potential of blockchain technology in securing data and protecting against cyber threats.
The purpose of the article is to analyse the main stages of formation and features of NFT with a projection on their use in the cultural and artistic environment. The research methodology is based on the use of a number of methods and approaches, which, taking into account the interdisciplinary nature of the problem, are integrated from art history, history, information technology. In addition, general scientific methods of analysis and synthesis, generalisation are applied. The scientific novelty consists in an attempt to substantiate the relevance of the use of NFT (non-fungible tokens) for the preservation of cultural values, the authorship of artistic works and creative industries. Conclusions. Technologies related to digitisation, virtual reality, artificial intelligence significantly affect changes in research and creative practices. The growing number of initiatives, services and applications arising at the intersection of the latest technologies and art motivates to study and discuss the creative potential of ICT in the context of culture and art. An important component of modern cultural, artistic, and economic processes is the implementation of NFT in the Metauniverse. NFTs (Non-Fungible Tokens), which are mostly encoded on the blockchain, are a distributed ledger technology related not only to cryptocurrencies, but also to the rapidly growing field of artistic entrepreneurship. The complex of blockchains and the decentralisation of their potential activates questions of strategy and the opportunities they open up for artists and creative industries. NFT is primarily an opportunity for everyone to become a participant and manager of a new cultural and artistic reality, which is characterised by global trends and local features of the production, development, popularisation, and circulation of cultural values. NFT-marketplaces play an important role in the circulation of digital cultural assets and are of particular importance for the formation and functioning of the cultural and artistic space, in particular, of Ukraine. This raises important issues of managing a technology that requires expertise in cryptography, coding, and the creation of legislation for its implementation.
Jan 1, 2022·Proceedings of the ... Annual Hawaii International Conference on System Sciences/Proceedings of the Annual Hawaii International Conference on System Sciences
In 2021, enterprise distributed ledger technology has evolved beyond the proof-of-concept stage. It is now providing business value to large consortia in several successful and well documented case studies. Nevertheless, other consortia and initiatives are stuck in early stages of consortium formation or conceptualization. They stand to benefit from lessons learned by successful consortia, but an in-depth comparison has not yet been conducted. Thus, this study performs the first methodological comparison of large DLT consortia that have launched a product. Based on the temporal evolution of these consortia, a lifecycle with 4 stages and 12 sub-phases is developed to provide further guidance for early-stage consortia. The results show how 9 pioneer consortia have successfully integrated novel DLT into existing processes, but also point out challenges faced on the way.
The article is devoted to the main directions of formation in library establishments, especially regional, thematic bases on topics of organization of ecological activity. It is investigated that due to the decentralization reform, the concept of environmental policy in Ukraine is constantly evolving, revealing new solutions to environmental problems, using the main trends in the European Union. This reform should strengthen the organizational, material, financial and legal autonomy of local communities, ensure the separation of powers between local governments at different levels and transform the budget system in order for communities to have their own budgets, the opportunity to combine their efforts and finance, taking into account the combination of national, regional and local interests and specifics of socio-economic, ecological, political and cultural development. First of all, the successful development of this process should be ensured by its effective information and analytical support on the basis of an operational analysis of all problems and achievements. Therefore, information centers and library institutions: should establish permanent contacts with local authorities, find out their information needs and the most effective ways of cooperation; should form information bases for operational information for practical field assistance; must develop distant forms of information service; should develop inter-library cooperation in exchange of practical experience of decentralization, forecast-analytical materials.
The paper proves the validity of studying cryptocurrency as a cultural phenomenon. According to the Fundamentals of State Cultural Policy, culture is a resource of the social and economic development of the country, therefore, examining the economic aspects of the society is of great importance to cultural scientists. The possibility of dealing with cryptocurrency as a cultural element is confirmed by the following statements. Cryptocurrency refers to the economic culture of a society. The cryptocurrency impact is covered in mass media which constitute the cultural institution. In addition, cryptocurrency is consolidated in culture through the specialized exhibitions supported by public cultural agencies. The paper defines the promising trends in researches identifying the capacity of the virtual reality in the field of cultural patterns development. The authors note that studying cryptocurrency as a part of virtual reality will allow one to determine the mechanisms, borders, and technologies of this type of reality.
Open access
Security, Politics, and Digital Transformation
Library Science and Information
Innovations in Education and Learning Technologies
Helen Williams of the London School of Economics attended the recent Talis open day covering all things semantic and how to apply these tools and structures in a library setting. Helen has included links to all the presentations from the day that covered a wide range of topics from making library resources web3 ready and the frameworks and schemas used in the Linked Data movement.