Innovation for Electronic Medical Records (EMRs) has been hindered by years of excessive regulation and inefficient bureaucracy. As data science and personalization encourage individuals to take an active role in their healthcare and regain control of their own medical records, there is an urgent need for new approaches. The ability to exchange electronic health records is fundamental in contemporary healthcare systems for facilitating a wider range of health services and delivering high-quality treatment. Despite the requirement for utilizing medical information for various reasons, most patients still authorize paper forms with minimal participation. The present methods of managing patient consent and medical data exchange are laborious, expensive, and prone to failures, even with quality assurance measures in effect. Because of this, there may not be enough patient empowerment, which can lead to inefficiencies in the process and a lack of trust and transparency. A shortage of resources makes it harder to acquire individual consent, which is necessary for health data exchange. Healthcare organizations also grapple with patient consent. Blockchain-based platforms enable data exchange by developing a trusted user network. Users can share their data without relying on health service providers for time and resources. Blockchain-based systems necessitate data governance frameworks to specify and monitor data exchange and use. This research article aims to establish a system that healthcare organizations may use to easily gain patient consent for various objectives, while also giving patients more flexibility in managing their consent. In this study, a novel electronic consent model namely ‘Smart Consent Blockchain Based System (SCBCS)”, is built on the hyper ledger fabric Blockchain that employs a purpose-based access control method. Distributed ledger technology (blockchain) ensures that all metadata pertaining to patient records, permissions, and data access cannot be altered once written. Additionally, Blockchain chain code is developed to handle patient consent-related business logic. A prototype is constructed and verified business logic with the chain code, validating the requestor's data access and patient permission saved in the Blockchain. The proposed SCBCS acts as a consent management system for patients and healthcare organizations. The proposed method is compared with other existing methods 'MedRec’, Consent Management System (CMS). The results demonstrate this system manages medical staff data access requests effectively. The proposed method outperforms other methods compared with low latency, less gas consumption, and low access time. This Blockchain-based proposed SCBCS technology offers great dependability, transparency, and traceability for patient data sharing in hospitals and research.
The continuous development of the Internet and the continuous changes in digital technologies such as artificial intelligence, blockchain technology, and AIGC technology mean that digital technology is the direction of future urban development. With the development and progress of society, problems such as environmental damage, lax regulatory systems, and low enthusiasm of people to protect the environment frequently occur. The quality of the global environment and social development develop in inverse proportion. As one of the key technologies for the development of future digital cities, blockchain technology has the characteristics of decentralization, openness, non-tamperability, traceability, and incentivization, which can meet the public’s openness and incentives for ecological and environmental protection behaviors. change. Use the “incentive mechanism” and “distributed ledger” technologies in the blockchain to improve the public’s behavioral enthusiasm for protecting the ecological environment and the standardization of resource utilization, and ensure the authenticity and real-name nature of the data obtained from participating in ecological protection activities. Fundamentally implement technology and ecological environmental protection measures to promote the construction of ecological civilization in the digital era.
With the rapid development of communication technologies, the demand for security and automation of driving has promoted the development of the Internet of Vehicles (IoV). The IoV aims to provide users with a safer, more comfortable, and more efficient driving experience. However, the current IoV also faces a series of potential security risks and privacy breaches, which has further propelled research on trust management for vehicular networks. The introduction of the blockchain has resolved the issue of data security in IoV trust management. However, the blockchain is limited by its own performance and scalability, making it unsuitable for large-scale networks. In order to enhance the transaction-processing efficiency of blockchain-based trust management solutions and address their scalability limitations, this paper presents a graph partition-based blockchain-sharding protocol. Simulation results on real-world datasets demonstrate that the proposed scheme exhibits better scalability compared to existing blockchain-based approaches and can accommodate larger-scale device access.
The current blockchain system for cryptocurrency exchanges primarily employs elliptic curve cryptography (ECC) for generating key pairs in wallets, and elliptic curve digital signature algorithms (ECDSA) for generating signatures in transactions. Consequently, with the maturation of quantum computing technology, the current blockchain system faces the risk of quantum computing attacks. Quantum computers may potentially counterfeit signatures produced by ECDSA. Therefore, this study analyzes the vulnerabilities of the current blockchain system to quantum computing attacks and proposes a post-quantum cryptography (PQC)-based blockchain system to enhance security by addressing and improving each identified weakness. Furthermore, this study proposes PQC-based wallets and PQC-based transactions, utilizing PQC digital signature algorithms to generate PQC-based signatures for the inputs in PQC-based transactions, thereby preventing signatures from being counterfeited by quantum computing. Experimental results demonstrate that the efficiency of the Module-Lattice-Based Digital Signature Algorithm (ML-DSA), a PQC digital signature algorithm, in producing wallets, generating signatures, and verifying signatures surpasses that of ECDSA in the current blockchain system. Furthermore, the ML-DSA also exhibits a higher security level.
Blockchain is a distributed ledger technology that became widely known with the development of virtual currencies, and is often applied in fields such as finance, logistics, and government that require high data security. Engineering project archives belong to commercial confidential documents, and there are strict regulations for the establishment and circulation of archives. Engineering project archives are technical documents formed during engineering planning, construction, and management activities, and their authenticity and immutability are crucial. In order to address the security and credibility issues in traditional project archive management, this paper proposes a digital management solution for project archives based on blockchain and smart contract technology, which reduces the possibility of human operation in archives and aims to make the archive management process more reliable and intelligent.
In the process of technology promoting the transformation towards digitalization, both blockchain technology and supply chain finance emerge as hot topics. Blockchain technology, characterized by decentralization, immutability, transparency, security, and programmability, addresses the risk consider
Blockchain technology, as an emerging distributed ledger technology, has attracted wide attention in various industries. From the perspective of information economics, this paper discusses the application scenarios and economic logic of blockchain technology in economic activities. The basic principles and characteristics of blockchain technology are outlined, emphasizing its advantages such as tamper-proof data records, decentralized trust mechanism and smart contracts. The application scenarios of blockchain technology are analyzed in the fields of supply chain management, financial services, logistics management and so on, combined with the theories of information asymmetry and incomplete information economics, and the economic logic behind the application of blockchain technology is expounded. Finally, this paper summarizes the positive role of blockchain technology in improving market efficiency, reducing transaction costs and improving information symmetry, and prospects the development trend of blockchain technology in the future. This paper aims to provide researchers and practitioners with an economic analysis framework and ideas on the application of blockchain technology, and to promote the in-depth discussion and development of this field.
Smart contracts play a crucial role in blockchain technology, but their writing poses risks of vulnerabilities, potentially leading to serious consequences such as financial losses and system crashes. To address this, we propose a smart contract vulnerability detection method based on VCS and ensemb
This research paper discusses virtual currency and the blockchain technology that underpins it. Virtual money, frequently referred to cryptocurrency, is a digital method of payment that is not regulated by traditional financial institutions. It enables individuals to perform peer-to-peer transactions in a secure and efficient manner by using encrypted digital records. Cryptocurrencies like Bitcoin and Ethereum have garnered popularity due to their promise to transform financial institutions by enabling international and decentralized payments. Blockchain technology facilitates the operation of virtual currency. A blockchain is an immutable and decentralized digital ledger which keeps track of every single transaction in an easily accessible and tamper-resistant manner. Each transaction is organized into a block and linked to the one before it, forming a chain of blocks. This paper explores virtual currency and its foundation, blockchain technology. Cryptocurrency, a digital payment method, enables secure peer-to-peer transactions without traditional financial oversight. Prominent examples like Bitcoin and Ethereum offer potential for global and decentralized payments. Blockchain, an immutable digital ledger, supports virtual currency, recording tamper-resistant transactions in linked blocks.
With the rapid changes in technologies such as artificial intelligence, the management methods and management modes of universities need to keep pace with the changes of the times.It is a necessary prerequisite to improve management efficiency and reduce management costs for managers to grasp all effective information in a timely and accurate manner."This paper aims to find new support points to make the financial management of universities gradually move from decentralization to centralization, liberate financial personnel from simple accounting work and participate in management, realize the transformation of financial management, and provide strong guarantee for the reform and development of universities. The Purpose of Integration of the Operations and Finance Departments in Colleges and UniversitiesIntegration of the 0perations and finance departments is to organically combine the Operations and finance of colleges and universities, and financial personnel will take the initiative to participate in operation activities, and understand operations work while knowing finance work, so that financial personnel will become "all-round comprehensive"[1-3].Let the financial personnel who understand operations actively and effectively participate in the whole process of operations activities, which can not only enhance the accuracy of operations decisions, but also improve the quality and efficiency of operations activities, analyze the effective and dynamic operations and financial data at all times, provide decision-making guidelines for the cutting-edge Operations activities and form effective prior guidance.The "integration of operations and finance departments" is a new requirement for financial work [4][5][6], a new direction for the transformation and development of financial work, and a requirement and expectation of universities for financial management [7][8].
With the increasing concern of consumers about food quality and safety, the transparency and traceability of agricultural food supply chains have become crucial. This study focuses on the milk supply chain and explores how blockchain technology can be utilized to improve risk management. Leveraging the characteristics of distributed ledger, smart contracts, and immutability offered by blockchain, the transparency of the milk supply chain can be enhanced, reducing information asymmetry and effectively lowering potential quality and safety risks. The research will emphasize the application of blockchain in various stages of milk production, transportation, storage, and sales, as well as its role in traceability, verification, and trace-back. Through in-depth analysis, this study aims to provide a more secure, efficient, and reliable solution for milk supply chain management, contributing new ideas and methods for the sustainable development of the food industry.
This paper mainly emphasizes the corresponding analysis of the application of blockchain deposit in criminal online litigation in Chinese mainland. Firstly, it elaborates the characteristics of blockchain technology, such as uncoded, distributed ledger that is decentralized, asymmetric encryption and authorization technology, data uploading immediacy, etc., and then it analyzes the judicial practice of blockchain deposit technology in online litigation. It mainly includes improving the rules for reviewing the authenticity of blockchain evidence, focusing on the existing system to support the operation of blockchain deposit technology, etc., to study whether blockchain deposits can be better applied in criminal online litigation.
Jan 1, 2023·Proceedings of the 2nd International Conference on Mathematical Statistics and Economic Analysis, MSEA 2023, May 26–28, 2023, Nanjing, China
In recent years, the business demand of international cold chain food trade has been increasing, but the process is complex, time-consuming, and there are data trust issues. This paper proposes a blockchain-based international cold chain trade platform system, which uses the immutable and traceable
In order to meet the demand for blockchain talents, this paper explores the practical teaching of blockchain technology.Taking Ethereum as the platform and combining the application of blockchain technology in the field of digital copyright protection, we guide students to conduct research projects, so that students have a deep understanding of some abstract concepts of blockchain and master the methods of blockchain development.
As technical service provider, non-fungible token (NFT) digital work trading platforms directly gain economic benefits from transactions, and thus the platform should assume higher prior censorship obligation, bounded by the obligations due to a good administrator.When NFT digital work trading platforms bear the liability for calling off infringement, in case of failing to delete the infringing works on the blockchains, and punching the address blackhole may damage the bona fide trading counterparty; the system of "infringement without bearing the liability for stopping infringement" can be introduced to balance the interests of all parties.
The emergence of new and improved technological advances created severe problems in the security state of the educational certification system. Throughout this paper, a proposal has been made to improve security. Here, Blockchain technology has been introduced as reliable secure storage for the educational certification system, providing an additional facility to the users. That is the validation and authentication of the student's academic records. Moreover, for security purposes, Blockchain technology can replace the traditional academic certification system and contribute to a new model for sharing student information. After completion of data inclusion and hashing, the blocks will be inserted into the Blockchain network. This proposed model enhances document security and fraud reduction and additionally reduces a significant amount of authentication time almost up to double the current speed. With this system, we will get a certification process in which all data will be digitalized and secured in an unbreakable database with proper authentication and with a noticeable amount of time efficiency.
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Exorbitant costs and extensive lead times are key concerns for transboundary payments. Transboundary deals face greater development challenges than domestic payment systems since they require a high degree of trust and include currency conversion. In this context, blockchain can successfully establish new cross-border payment services and promote cross-border commerce by employing a distributed public ledger that integrates public key encryption and peer-to-peer technology. Blockchain has got two key characteristics: distributed consensus and anonymity. By eliminating intermediaries between third-party finance agencies, it not only allows for instant payments around the clock but also contributes to mitigating the exposure to transboundary capital flows and meeting consumer needs for expedient transboundary payments and clearing services. This paper argues that while blockchain technology eliminates problems and presents effective strategies for conventional transboundary payments, it also raises many legislative and regulative issues for China. As the law itself is not yet mature, especially given the changes in international payments in the wake of the epidemic, it is worthwhile to explore the operating rationale and regulation obstacles of blockchain to the maximization of profits and minimization of risks in transborder payments by leveraging its inimitable strengths.
Blockchain provides IoT security and privacy in all industries including manufacturing, finance, healthcare, supply chain, e-governance, education, banking, and trading through decentralization, persistency, anonymity, and auditability characteristics. This paper presents the blockchain technology assimilating with other data security technologies to design a blockchain based data sharing system. Based on the design the network architecture of data sharing system, we test and analyze various processes in data sharing. To test the function and security of the system, we have built a test environment with data sharing system consisting of three blockchain nodes, four data participant nodes (three data users, one data provider), and a data-sharing system composed of CA. We developed Base App as an application provided by the data user, including addition, deletion, check modification of data in the application code for data sharing. We simulated an experiment related scenario, and then we wrote a program to generate the vehicle information data and import it into MySQL for storage. The paper has found some valuable results of functional test, system test, safety test, and performance test of the data sharing system. This system realizes the possibility of a system that can connect multiple participants and their corresponding data.
For the traditional financial industry, blockchain technology has brought an unprecedented revolution. In recent years, blockchain technology has become one of the most important research directions of financial technology in commercial banks in China. The application of blockchain technology in commercial banks can help optimize payment and settlement system, improve credit risk management and control mode, improve the operation efficiency of the middle and back office, and develop smart finance. At the same time, blockchain technology brings many challenges. Based on the introduction of the evolution and characteristics of blockchain, this paper analyzes the necessity of the application of blockchain technology in China's commercial banks, puts forward the policy advices of the application of blockchain in commercial banks.
This article is based on the security, traceability, immutability and transparency of blockchain technology, aiming at the pain points of information asymmetry, financing difficulties, expensive financing, and weak supervision in the development of supply chain finance, to study how to use the core technologies of distributed ledgers, peer-to-peer transmission, associated credit, and smart contracts in blockchain technology to empower supply chain finance, expand the scope of blockchain technology, and provide technical support for the supply chain financial model. Strategic cooperation system to conduct innovative research on the combination of supply chain finance and blockchain technology.