DStore: Blockchain-Powered Decentralized Cloud Mesh

Data is a critical asset for any company, as well as for any individual as well, but it is also vulnerable to attack. In the last few years, we have seen an alarming increase in data breaches that have compromised millions of accounts and resulted in billions of dollars lost. But how do you protect something so sensitive? In response to this, we propose our Project. This project focuses on developing a Decentralized Cloud Storage to store and secure data. You don't access data simply specifying 'where it is' in Decentralised Cloud Storage. Instead, you define 'what it is'. Because data is distributed throughout a global network rather than being stored in a specific location, the concept of location is rendered obsolete in decentralised cloud storage

FinBTech: Blockchain-Based Video and Voice Authentication System for Enhanced Security in Financial Transactions Utilizing FaceNet512 and Gaussian Mixture Models

In the digital age, it is crucial to make sure that financial transactions are as secure and reliable as possible. This abstract offers a ground-breaking method that combines smart contracts, blockchain technology, FaceNet512 for improved face recognition, and Gaussian Mixture Models (GMM) for speech authentication to create a system for video and audio verification that is unmatched. Smart contracts and the immutable ledger of the blockchain are combined to offer a safe and open environment for financial transactions. FaceNet512 and GMM offer multi-factor biometric authentication simultaneously, enhancing security to new heights. By combining cutting-edge technology, this system offers a strong defense against identity theft and illegal access, establishing a new benchmark for safe financial transactions

Analysis of web3 solution development principles

In the master's thesis, we researched the principles of Web3 solution development. We studied the blockchain and blockchain-related technology, development of the Web including all versions of the Web and the differences between them. We presented the popular technologies for Web3 development and the most common Web3 solutions with examples. With help of systematic literature review we explored the state-of-art technologies for Web3 solution development and proposed a full-stack for Web3. In the final part we implemented a proof-of-concept Ethereum decentralized application and compared it with equivalent concept of Web2 application. We proposed future work of researching other popular blockchain protocols like Solana or Polygon

Blockchain-Based Federated Learning: Incentivizing Data Sharing and Penalizing Dishonest Behavior

With the increasing importance of data sharing for collaboration and innovation, it is becoming more important to ensure that data is managed and shared in a secure and trustworthy manner. Data governance is a common approach to managing data, but it faces many challenges such as data silos, data consistency, privacy, security, and access control. To address these challenges, this paper proposes a comprehensive framework that integrates data trust in federated learning with InterPlanetary File System, blockchain, and smart contracts to facilitate secure and mutually beneficial data sharing while providing incentives, access control mechanisms, and penalizing any dishonest behavior. The experimental results demonstrate that the proposed model is effective in improving the accuracy of federated learning models while ensuring the security and fairness of the data-sharing process. The research paper also presents a decentralized federated learning platform that successfully trained a CNN model on the MNIST dataset using blockchain technology. The platform enables multiple workers to train the model simultaneously while maintaining data privacy and security. The decentralized architecture and use of blockchain technology allow for efficient communication and coordination between workers. This platform has the potential to facilitate decentralized machine learning and support privacy-preserving collaboration in various domains.Comment: To appear in the 5th International Congress on Blockchain and Applications (BLOCKCHAIN'23). Publish by the Lecture Notes in Networks and Systems series of Springer Verla

Blockchain Framework in Digital Government for the Certification of Authenticity, Timestamping and Data Property

In an ever more digitized world where information and data are increasingly dematerialized, the question of how to certify intellectual property and define when a document has been created or modified without the presence of any third-party guarantor inevitably arises. This document proposes a decentralized method that, by exploiting blockchain technology and distributed peer-to-peer (P2P) networks, makes it possible to historicize information in such a way that it is not possible for a user to alter its dating, attribute ownership or modify it by impersonating the author. The data certification (document, image, film, data archive, etc.) takes place through the creation of an immutable relationship between the owner and the data. At the legal level, many countries are beginning to regulate blockchain technology so that it can be used in many areas, such as the production chain, the Internet of Things or Public Administration. In this paper we present a solution to promote digital government and greater transparency, through the use of a framework based on the Ethereum blockchain, smart contracts and a decentralized application

Armanesia Blockchain System: Blockchain and IFPS-Based Archive System Prototype

Document integrity is critical to public trust in archives management. Armanesia is an innovative research project aims to develop prototype of information systems to support the management of digital archives based on blockchain technology. The project uses blockchain technology to record verification, immutability, and other metadata derived from various types of digital records. In this system, archives are permanently stored through peer-to-peer distribution and consensus verification without the need for a third party. The continuum archive cycle is based on Armanesia workflow infrastructure. The prototype is built through open-source technologies such as IPFS (Interplanetary File System) for blockchain-enabled file systems to design a system prototype using the SDLC (System Development Life Cycle) method. Armanesia technology can be applied for both public and private blockchain ecosystems. &nbsp