Blockchain Papers

Gulpreet Kaur Chadha, Aakarsh Shrivastava, Deepti Mehrotra, Renuka Nagpal

No abstract is available for this record.

HongQi Bi

In order to reduce the key update time delay of the Internet of Things and reduce the device location error rate and location time, a new key update and device location of Internet of Things based on smart contract was designed. Adopt improved MVIF security mechanism of both parties to build smart contract security mechanism, and the key update of the Internet of Things is realized through key predistribution, user registration and login, and key update. On this basis, multidimensional scaling technology is used to abstract Internet of Things devices into relative coordinates in multidimensional space, and the absolute coordinates are obtained by eliminating the distance estimation error to achieve Internet of Things device positioning. Experimental results show that the proposed method has a lower key update time delay, a lower amount of data used in the key update process, a lower positioning error rate of Internet of Things devices, and a shorter positioning time, which fully verifies the effectiveness of the proposed method.

Tripti Rathi

No abstract is available for this record.

Venkata Nagaraju Thatha, A. Sudhir Babu, D. Haritha

Key technology for unsupervised intelligent classification of any textual content is the clustering of documents. Prior document knowledge is not required for document clustering, which is an unsupervised method of learning as compared with document classification. For clustering rather than classification, little prior knowledge of the data is needed. The crucial challenges of document clustering are the high dimensionality, measurability, preciseness, extraction of semantic relationships from texts, and meaningful cluster labels. Fuzzy WordNet-based document representation and clustering using the regularised K-means method as an efficient framework is introduced in the present paper with the purpose of improving the quality of document clustering. To estimate the performance of this framework we carried out experiments on different datasets. Experimental results show that this framework improves the quality of document clustering when compared to other existing methods. Furthermore, this system gives generalised and concrete labels for documents and improves the speed of clustering by reducing their size.

Tiange Gao

Cross-border e-commerce is also facing the problems of cross-border goods selling counterfeit, long delivery time of cross-border logistics, and high cross-border payment fee in the process of development. Blockchain technology, with its characteristics of high trustworthiness, traceability, and information immutability, can be applied to the field of cross-border e-commerce, providing a new direction for cross-border e-commerce to solve these problems. At the present stage, scholars at home and abroad mainly study how blockchain technology is applied in cross-border e-commerce, explore the specific mode of combining blockchain technology with cross-border e-commerce, and lay the theoretical foundation for the application of blockchain technology in cross-border e-commerce, while less research is conducted on the application effect of blockchain technology in cross-border e-commerce. Based on this, this paper researches the influence mechanism of the application of blockchain technology in cross-border e-commerce on consumers’ willingness to purchase, explains the current situation of the application of blockchain technology in various fields of cross-border e-commerce, and on this basis, divides the quality of the blockchain system of cross-border e-commerce into three dimensions of commodity information quality, logistics service quality, and payment security.

Fei Liang

Blockchain is a cutting-edge technology with multiple functions such as data storage and security encryption, and is widely used in many fields. This paper studies the establishment of intelligent logistics data management system based on blockchain technology, optimizing the logistics service data management system from four aspects: logistics traceability, data analysis, intelligent decision-making and logistics finance. A new decentralized multilateral logistics transaction mechanism is proposed in combination with improved ant colony algorithms to achieve intelligent decision making for multi-user transaction matching, while using smart contracts to ensure the transaction process is safeguarded and constrained. The experimental results show that the stability and decision-making process of the intelligent decision-making model based on the improved ant colony algorithm are significantly better than those of the traditional ant colony algorithm and the basic particle swarm optimization algorithm. The blockchain-based intelligent logistics data management system effectively improves the intelligence and automation of logistics service information management and analysis, and has important practical value for the modern development of logistics service industry.

Ping Zhang, Xuchong Liu Ping Zhang, Wenjun Li Xuchong Liu, Xiaofeng Yu Wenjun Li

No abstract is available for this record.

Fatih Çallı

Blok zinciri teknolojisinin ilk olarak kripto para birimi Bitcoin ile popüler hale gelmesi aslında büyümeye başlayan bir kartopunun ilk hareketi olarak görülmesi gerekir. Öncelikle finans sektörüne etki eden bu teknolojinin zaman ilerledikçe birçok sektörü etkisi altına aldığı görülürken turizm sektörünün yolunun da bu teknoloji ile kesişmeye başladığı yadsınamaz bir gerçektir. Bu nedenle hem akademisyenler hem araştırmacılar hem de çeşitli sektörler tarafından üzerinde yoğun bir şekilde çalışılan bir konu haline gelmiştir. Bu çalışmada bir blok zinciri uygulaması olan NFT (Non-fungible Token, Değiştirilemez Jeton) teknolojisi ele alınıp turizm sektörü açısından sunabileceği yenilikler ele alınmıştır.

Jiawei Ling

In recent years, the in-depth development of the Internet has given birth to the learning mode of knowledge payment. Since 2016 to date, knowledge payment has gone through the process of fumbling to maturity from its infancy to emergence, and its market scale has expanded, and is expected to reach $50 billion after 2020, with college students expected to account for up to $10 billion in the interim. In this explosion of the knowledge payment industry, countless platforms have emerged and grown. However, among the existing platforms, most of them target at the whole society, and the products are many and miscellaneous, with insufficient quality control ability and low product repurchase rate. Today, with the rapid development of distributed ledger and big data mining technologies, this situation can be precisely solved.

Ke Wang

No abstract is available for this record.

Dongxiang Song, Jialuolun Ma, Yiran Wang

At present, some colleges and universities use the recruitment system to complete the registration and review of candidates in the recruitment work, but the review work still requires reviewers to spend a lot of time to complete. In addition, candidates submit malicious incorrect registration information to disrupt recruitment, which not only increases the workload of reviewers, but also affects the efficiency of recruitment. Candidates need to upload scanned copies of certification materials (such as ID card, degree certificate, graduation certificate, etc.) when registering. Some candidates are worried about whether the information will be leaked and the reviewers are unfair in reviewing for personal gains. In response to these problems, this article proposes to add text recognition to the recruitment management system of a university teacher to complete the system's automatic registration review. Based on the traceability and non-tampering characteristics of blockchain technology, the security and traceability of registration information are guaranteed. Kind of optimization plan. By analyzing the system process, selecting a third-party API interface to complete text recognition, and combining the simple filtering function of the system to build an automated audit function of the system. Select the candidate's registration information as the traceability object, optimize the system process, write smart contracts, web3.js connect the system and the blockchain. Experiments have proved that the automated audit function is automatically executed after candidates submit the registration form, and the average audit speed is 550ms. Reduce the workload of reviewers and improve recruitment efficiency. If the candidate has questions about the review process, the candidate can retrospectively verify whether the registration information has been tampered with through the blockchain, which ensures the fairness of the recruitment work.

Zhong Guohua

In the era of big data, huge archive data has brought challenges to archive management. The new data distributed storage technology-blockchain, provides new methods and ideas for the circulation and sharing of data through the characteristics of decentralization, timing, distributed ledger, openness, and openness and transparency. This article analyzes the role and characteristics of blockchain technology in the file management distributed system under the background of big data. Starting from the connection between digital archives research and blockchain technology, the application prospects of blockchain technology in archives management are analyzed from different angles.

Johann Stockinger

Durch die steigende Popularität von Bitcoin steigen auch die Anforderungen von Benutzern nach effektiven Techniken zur Wahrung ihrer Privatsphäre. Zwei häufig empfohlene Dienste sind Wasabi Wallet und Samourai Wallet, welche durch CoinJoins das robuste und sichere Vermischen von Bitcoins versprechen. Diese Arbeit untersucht die Rolle dieser beiden Dienste im Bitcoin Ökosystem, wie sich diese Rolle im Laufe der Zeit entwickelt hat und ob es möglich ist, Benutzer dieser Dienste zu deanonymisieren. Um die Rolle beider Dienste zu analysieren werden Heuristiken entwickelt, welche die CoinJoin Transaktionen von Wasabi Wallet und Samourai Wallet erkennen. Auf Basis der so entdeckten Transaktionen wird sichtbar, dass sowohl die Anzahl der Transaktionen als auch die Anzahl der vermischten Bitcoins stetig wächst, was auf eine wachsende Nutzerbasis hinweist. Darüber hinaus wurden Adressen von Entitäten, welche in Verbindung zu kriminellen Aktivitäten wie Ransomware und Service-Hacks stehen, in der Nähe von CoinJoin Transaktionen beider Dienste identifiziert. Schlussendlich wird das zugrundeliegende System beider Dienste in Hinblick auf Diebstahl, Denial-of-Service sowie Deanonymisierung von Benutzern analysiert. Es wird gezeigt, dass ein bösartiger CoinJoin-Koordinator theoretisch Nutzer deanonymisieren kann, dies jedoch nur in einer eher offensichtlichen Art, welche zu nachträglichem Misstrauen führen kann. Des Weiteren sind sowohl Wasabi Wallet als auch Samourai Wallet robust gegenüber Diebstahl und verfügen über Maßnahmen gegen Denial-of-Service Angriffe.

Zhili Zhou, Meimin Wang, Jingwang Huang, Shengliang Lin · 5 authors

The purposes are to investigate how blockchain can solve the security problems in Intelligent Autonomous Transport System (IATS) and intelligentize the logistics transportation development. Regarding the scarcity of trust and concentration of rights caused by the centralized structure of traditional logistics information systems, a blockchain-based IATS is proposed. The system employs Ethereum as the underlying blockchain to record sensitive information, such as system orders, cargos, and personnel information on the blockchain, ensuring the non-tampering and credibility of data. Simultaneously, an order management module, a warehouse management module, a transportation management module, a transaction management module, and a system management module are established. In the meantime, the Light Gradient Boosting Machine (LightGBM) algorithm is utilized to recommend vehicle and cargo matching during transportation. Finally, the constructed algorithm model is simulated to analyze its performance. Results demonstrate that the security prediction accuracy of the proposed algorithm reaches 88.72%; moreover, the security prediction precision, recall, and F1 of the proposed algorithm are considerably better than those of other algorithms. Furthermore, the actual effect of each algorithm is analyzed. The LightGBM algorithm outperforms other algorithms and unused algorithms in click rate, conversion rate, turnover rate, and average response time. Therefore, the constructed blockchain-based IATS has excellent security performance and prediction accuracy, which provides an experimental basis for the later intelligent logistics transportation development.

Sun Jianjun

The development of internet platforms has made network resources increasingly abundant, and the protection and dissemination of knowledge of digital resources has become an important topic for the development of new technologies. This article combines the security, decentralization and other characteristics of blockchain technology, integrates smart contract technology into digital resource knowledge management, and proposes a digital resource knowledge management smart contract platform. This article experiments on the platform's environment and operations to demonstrate the availability and innovation of digital platforms. The platform proposed by the article provides technical support for building digital resource knowledge management resources and knowledge protection and sharing.

Xiaoqiang Jia

No abstract is available for this record.

Nana Wang, Hui Xu, Feng Xu, Lei Cheng

No abstract is available for this record.

Nguyễn Phương Thảo Văng

The fourth technological revolution recorded the significance of blockchain technology for its providing users with a transparent, easily accessible and verified data system, eliminating unnecessary costs, maintaining the integrity, efficiency as well as enhancing the level of trust and security. Contour is a typical blockchain platform applied for trade finance business of banking industry. Formed and went live as a Beta network in January 2020, then official launched into live production in October 2020, Contour becomes the world’s first, decentralized, open-to-all trade finance network. Contour is still in its infancy, that means the scope of Contour’s application may not be fully explored. The objective of this paper is to clarify the concept of Contour , analyze its operations, discuss some application cases in the banking industry, point out the benefits, outline the challenges of joining Contour.

Hongmei Zhao

In the current cross-border electronic commerce (e-commerce) system, various document recording and authorization processes are cumbersome, record sharing efficiency is low, and identity verification is difficult. A method of asymmetric encryption technology combining Blockchain technology and cryptography is proposed. The advantages of asymmetric encrypted communications include high security and ease of multiparties communication collaboration, being applied to a peer-to-peer network formed by Blockchain technology, and making cross-border e-commerce record cross-domain sharing traceable, data immutable, and identity verification simplified. First of all, based on the immutable modification of Blockchain technology and asymmetric encryption technology, file synchronization contracts and authorization contracts are designed. Its distributed storage advantages ensure the privacy of users’ cross-border e-commerce information. Second, the design of the cross-domain acquisition contract can effectively verify the identity and transmission efficiency of both parties to the data sharing, so that illegal users can be safely filtered without a third-party notary institution. The simulation experiment results show that the solution proposed in this paper has obvious advantages in data antitheft, multiparty authentication, and saving system overhead compared with traditional cloud computing methods to solve the problem of sharing medical records. It provides a reference for solving the security problems in the process of data sharing by using the advantages of Blockchain’s decentralization and auditability and provides reference ideas for solving the problems of data sharing and cross-domain authentication.

Sheng Peng, Linkai Zhu, Zhiming Cai, Wenjian Liu · 6 authors

With the development of terminal technology and the expansion of application fields, the Internet of Things’ application value and service requirements continue to increase. Efficient data transmission is a reliable guarantee for the development and application of the Internet of Things. Blockchain technology provides a solution for storing and delivering distributed data. On this basis, taking the Industrial Internet of Things as the research object, a blockchain-based data transmission optimization method was established. First, an undirected complete graph model is used to describe the network scene. A matrix grid model is used to replace the randomly distributed set of data nodes. Then, a double optimization method is proposed. We designed the mathematical description and modeling method of the lattice matching decision problem and designed the artificial neural network to find the optimal solution to the problem. Finally, an example is used to verify the government data transmission method’s technical performance and packet loss rate. It has achieved at least 20% and 30% improvements in optimizing the network life of static aggregation nodes and data transmission, respectively. While improving the robustness of the network, it also shows a stable advantage in terms of network energy efficiency indicators.

Pratiksha Pralhad Survase, Vaishali Sunil Kale, Sanjivani Anand Durgale, Kshitija Babanrao Gade · 5 authors

Block chains are now firmly established as a digital technology that combines cryptographic, data management, networking, and incentive mechanisms to support the verification, execution, and recording of transactions between parties. While block chain technologies were originally intended to support new forms of digital currency for easier and secure payments, they now hold great promise as a new foundation for all forms of transactions. Agribusiness stands to become a key beneficiary of this technology as a platform to execute 'smart contracts' for transactions, particularly for high-value produce. First it is important to distinguish between private digital currencies and the distributed ledger and block chain technologies that underlie them. The distributed and cross-border nature of digital currencies like Bit coin means that regulation of the core protocols of these systems by central banks is unlikely to be effective. Monetary authorities are focused more on understanding 'on-ramps' and 'off-ramps' that constitute the links to the traditional payments system rather than being able to monitor and regulate the currency itself. In contrast to the digital currency feature of block chain, the distributed ledger feature has the potential for widespread use in agribusiness and trade financing, especially where workflows involve many different parties with no trusted central entity.

Renlan Wang

At present, the supply chain finance industry has been in a vigorous development trend, but its development is still hindered by the reasons such as information opacity and information asymmetry. This paper mainly studies the application of blockchain technology in supply chain finance for Beibu Gulf region. According to the industry characteristics of supply chain finance, the blockchain technology is integrated with supply chain finance to construct the supply chain finance alliance architecture based on the blockchain technology and the underlying model and composition technology of Ethereum blockchain system applicable to supply chain finance. Considering the actual operation situation of supply chain finance platform blockchain, using the principal-agent model and incentive theory, supply chain finance accounts receivable mode, for example, the design blockchain financial platform service provider with the core enterprises of supply chain between the incentive mechanism, promote blockchain technology and supply chain finance better ground test, solve the current financial supply chain development bottleneck.

C. Vijayalakshmi

E-Commerce has become more and more popular because of rich products, fast transactions, and free from time, locations, stores, and so on. However, the disclosure of personal data such as their IDs, addresses, and phone numbers has become a major concern for online activities. The current e-commerce model is at the crossroads of ownership and privacy. To address this, this article creates an enterprise protocol that uses smart personal contracts to protect privacy during the negotiation phase. This protocol allows contracting parties to conduct business without disclosing personal information such as identity, address, and phone number. Furthermore, we employ the zero-knowledge proof to ensure ownership.

Qianwei Ma, Yanxia Yang

Abstract In the process of rapid development of information technology, to promote the further construction of new smart cities, comprehensive utilization of cloud computing technology, big data technology and Internet of Things technology will help improve the convenience of residents’ lives. The development of blockchain technology provides more possibilities for the construction of new smart cities. The use of blockchain and other new technologies to build a smart city big data platform can realize a point-to-point communication mechanism. At the same time, this can also establish a more reliable trust agreement. It is conducive to the realization of applications such as smart IoT, government affairs, and big data. Using the blockchain big data platform to build a new type of smart city can break information islands and achieve the purpose of data sharing and information security. This is a key issue that must be paid attention to in the current construction of new smart cities. In this link, it is necessary to strengthen the research and analysis of blockchain technology to understand the problems that exist in the process of building a smart city on a big data platform. This article discusses the application advantages and related strategies of a smart city big data platform based on blockchain technology.