As an important product of the Internet era, the essence of green sharing economy is to rely on Internet technology. In particular, big data technology will re-use idle social resources and create new market value. However, with the increasing application of sharing economy in the field of green industry, the problems of data security, circulation, sharing and privacy protection gradually appear. Big data technology has become the biggest bottleneck for the further development of sharing economy. Blockchain technology is a new Internet architecture composed of various technologies and communication protocols. Through its encryption sharing, distributed ledger and other characteristics, it provides new methods and ideas for data circulation and sharing, which complement big data technology. Therefore, the integration of blockchain technology and big data technology can subvert the traditional business model of sharing economy. This can innovate the mode and development of traditional green industry, and provide new opportunities for the development of green sharing economy.
To address many issues with conventional credit assessment techniques, this article suggests an international credit evaluation system for trading firms built on blockchain technology and a grey correlation model. Blockchain technology improves the transparency and security of data processing with its distributed ledger and anti-tamper feature. Combined with ring signature technology, users can maintain anonymity during the evaluation process, protecting user privacy and preventing information leakage. The grey correlation model can still provide effective evaluation results in the case of incomplete data or insufficient information by analyzing the correlation between indicators. This paper constructs an evaluation index system containing three main dimensions, namely corporate characteristics, corporate credit, and corporate finance, and verifies the effectiveness of the evaluation system by analyzing the data of five representative international enterprises during the period from 2013 to 2023. The results show that the system can accurately reveal the comprehensive strength and credit risk, provide valuable references for the international trading industry and regulators, and improve credit management and risk control ability in international trade. The research is not only of great significance in theory but also shows a broad prospect in practical application, providing a scientific and reliable evaluation tool for credit management of international trade enterprises.
Smart contracts are widely utilized in cross-chain interactions, where their results are transmitted from one blockchain (the producer blockchain) to another (the consumer blockchain). Unfortunately, the consumer blockchain often accepts these results without executing the smart contracts for validation, posing potential security risks. To address this, we propose a method for validating cross-chain smart contract results. Our approach emphasizes consumer blockchain execution of cross-chain smart contracts of producer blockchain, allowing comparison of results with the transmitted ones to detect potential discrepancies and ensure data integrity during cross-chain data dissemination. Additionally, we introduce the confirmation with proof method, which involves incorporating the chain of blocks and relevant cross-chain smart contract data from the producer blockchain into the consumer blockchain as evidence (or proof), establishing a unified and secure perspective of cross-chain smart contract results. Our verification results highlight the feasibility of cross-chain validation at the smart contract level.
As the main power supply mode of new energy, photovoltaic system has the characteristics of wide distribution and scattered energy collection Traditional management methods cannot realize the effective processing of distributed energy storage. Therefore, finding an effective intelligent method is the focus of current research, and the design of blockchain smart contracts can theoretically realize the centralized processing of photovoltaic energy storage systems. In this paper, the blockchain smart contract system is taken as the research object, and the energy storage management of the photovoltaic system is quantified through mapping, so as to realize the massive quantitative processing of data. Then, the reduction function is used to differentially reduce the distributed functional energy storage system, complete the centralized management of energy storage, and simplify the unnecessary data. Finally, combined with the hybrid energy storage situation, the key indicators in the data are mined, and the completion rate of the contract and the stability analysis of energy storage management are calculated. The results show that blockchain can mine the characteristics of hybrid energy storage, reduce the impact of distributed features on energy storage, improve the energy storage efficiency by 20%, and make the energy storage stability reach more than 90%. At the same time, the completion rate of smart energy storage contracts can be enhanced, the fitting degree can reach 90%, and the grid connection with the thermal grid can be effectively connected, the utilization rate of distributed energy resources will reach 85%, and the cost saving rate will be increased by 10%. Therefore, blockchain can solve the problem of hybrid energy storage in integrated systems, improve the completion rate of smart contracts, and promote the development of new energy.
This paper focuses on the empirical analysis of personal credit assessment of online lending platform from the perspective of personal credit, and the security of credit privacy data can be guaranteed by blockchain classification model. This paper is mainly based on the chain security encryption operation and decentralized data classifier training model, blockchain storage credit data between the ecological nodes through the transmission of transaction decision data return beacons, to achieve the data retrieval, use, confirm the rights and rewards, and at the same time the use of clustering learning algorithms combined with the decentralized training model to build a unique algorithmic training system, through the machine learning to backtrack all the transaction records, the sharing of the After data processing of credit data information, the fiducial correction fitting model using feedback from data samples, thus opening the modeling method of blockchain and clustering algorithm combined application in the field of credit. In the final analysis, the research on the application of blockchain technology in the credit collection industry should not stop at guaranteeing the security and traceability of data, but rather apply the "pre-credit review", "credit monitoring" and "post-credit management" to the entire credit collection industry. "Instead, it should be applied to the entire credit collection process, and used to guide Internet credit bureaus in their daily credit collection activities. Blockchain technology mainly solves the problem of credit trust and security, for this reason, it is necessary to construct a complete set of methods for analyzing, verifying and measuring Internet credit data. This paper combines the blockchain and the clustering algorithm in machine learning, and empirically analyzes the credit data of Internet consumer financial institutions under this framework.
The rapid expansion of the scale of special bonds stems from the mode transformation of local finances under continuous pressure. As land finance is unsustainable and hidden debts need to be resolved urgently, special bonds will inevitably bear the important responsibility of maintaining the sustainable development of local finances and stimulating the high-quality development of local economies. It is recommended to re-sort out the development responsibilities of local governments under the framework of fiscal decentralization, give full play to the financing role of special bonds in high-quality development areas such as infrastructure, industry, environmental protection, and people's livelihood, and establish corresponding incentive compatibility and risk control mechanisms to enhance the efficiency of fund utilization and avoid the accumulation of debt risks again.
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.
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.
The rural revitalization strategy in Guangxi, China, underscores the significance of a robust rural logistics system for economic growth and agricultural product competitiveness. This paper addresses the critical issue of uneven benefit distribution within the integrated reverse and forward logistics system in rural Guangxi. It explores the transformative potential of blockchain technology in rectifying these disparities and enhancing overall logistics efficiency. By leveraging blockchain's distributed ledger and smart contract capabilities, the research proposes a transparent and automated logistics ecosystem that fosters trust and efficiency. The integration of Internet of Things (IoT) technology further optimizes the logistics process through real-time data collection and monitoring. The study's findings indicate that blockchain technology significantly improves logistics timeliness, with the on-time order completion rate increasing from 90.74% to 96.47%. Moreover, the application of blockchain technology is evaluated using the Shapley value method, demonstrating its efficacy in promoting equitable benefit distribution among stakeholders. This paper contributes to the discourse on rural development by highlighting the socio-economic benefits of blockchain technology in enhancing rural logistics and supporting the broader goals of rural revitalization.
Abstract This paper constructs the logical framework of the smart contract model based on the sale and purchase contract transaction, integrating the legal framework and the smart contract. The smart contract model merges blockchain technology’s decentralized features with smart contracts to create a decentralized service mode for sale and purchase transactions. The classification of transaction attributes optimizes and adjusts the matching degree calculation method to meet the needs of both buyers and sellers. The matching degree determines the total satisfaction of both buyers and sellers. The simulation experiment model is designed to analyze the matching results, and the experimental results indicate that the overall utility value range is between 0.1 and 0.5, resulting in a higher level of satisfaction for both parties involved. Applying the model to actual purchase and sale transaction contracts, the expected profit of transaction users after using smart contracts is 26,300 yuan higher than that without using smart contracts. The accuracy and confidence scores of experienced users are 0,8886 and 4.0493, respectively, when evaluating their perceptions of the use of smart contracts. Smart contracts can help participants identify sales and purchase problems and provide innovative perspectives on the application of contract law.
Virtual property, including digital currencies and virtual goods on online platforms, has become an important component of the digital economy. Digital currencies such as Bitcoin and Ethereum are characterized by decentralization and anonymity, possessing both currency attributes and investment tool characteristics. At the same time, virtual goods like in-game equipment and pets carry emotional significance for users and have economic value. However, the legal status of these virtual properties is ambiguous, leading to uncertainty in dispute resolution and protection mechanisms. This article explores the current legal protection status of virtual property, particularly focusing on digital currencies and game-based virtual assets, and emphasizes the need to establish a regulatory framework that adapts to rapid technological changes. The article analyzes the legal attributes of digital currencies and the legal status of virtual goods, proposing that legislation should clarify the legal attributes of virtual property and optimize regulatory mechanisms to promote healthy market development and protect consumer rights.
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.
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.
Central bank digital currency (CBDC) is generally defined as the digital form of a country's fiat currency.Based on the distributed ledger technology and other financial technology, CBDC could improve the efficiency of domestic and cross-border payments, increase payment safety and soundness, and promote financial inclusion.However, it is argued that the introduction of CBDC would threaten data security and invade personal privacy.Currently, this issue has received growing concern, and some recommendations are proposed by countries or international organizations, like privacy design, restrictions on public authorities and payment intermediaries, and establishing independent supervisory authority.Other suggestions include getting countries involved in international coordination and promoting the formation of unified standards.Among major economies, China is the first to launch CBDC, which is known as e-CNY.Based on an overview of the privacy protection legislation in China, this article attempts to describe the rules that should be followed when dealing with personal data generated in e-CNY circulation.
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.
The popularity of non-fungible tokens (NFTs) has engendered a perception among individuals of the boundless potential inherent in digital art assets.Nevertheless, the proliferation of NFTs inside the digital ecosystem has brought forth new issues in terms of government regulation and financial oversight.The establishment and safeguarding of digital rights and interests have emerged as a crucial concern in the context of the digital economy.In order to address these issues, a novel terminology, namely non-fungible rights (NFR), has been introduced within the Chinese market.In the era following the epidemic, the dissemination of digital collections has shifted towards NFR as the primary mode.Yet, for them to have a significant presence in the market, digital collections must acquire a substantial share and offer practical utility with their inherent worth as collections.And the sustainable development of virtual capital can be enhanced by its integration with the actual world and the convergence of reality and virtuality.Hence, this study primarily examines the current state and prospective advancements of NFR, and it takes "Bored Ape Yacht Club" in Li Ning, China, as an example to propose the future of the collaborative development of NFR, the digital economy and the real economy.
When land becomes more connected, its value can change because of network externalities. This idea is intuitive and appealing to developers and policymakers, but documenting their importance is empirically challenging because it is difficult to isolate the determinants of land value in practice. We address this challenge with real estate in The Sandbox, a virtual economy built on blockchain, which provides a series of natural experiments that can be used to estimate the causal impact of land-based of network externalities. Our results show that when new land becomes available, the network value of existing land increases, but there is a trade-off as new land also competes with existing supply. Our work illustrates the benefits of using virtual worlds to conduct policy experiments.