Blockchain Papers

Benjamin S. Thompson, Sascha Rust

No abstract is available for this record.

Evripidis P. Kechagias, Sotiris P. Gayialis, Georgios A. Papadopoulos, Georgios Papoutsis

In today's era, humanity has been overwhelmed by technological revolutions that have changed and will continue to change how business operations are performed, directly or indirectly. At the same time, the processes within the supply chain are quite complex, and as technology and processes evolve, they become more and more challenging. Traceability has become a critical issue in the food industry to ensure safety, quality, and compliance with regulations. The adoption of blockchain technology in the food supply chain has gained significant attention as a potential solution to improve traceability. This paper presents the development of a distributed application for table olives' traceability on the Ethereum network. The paper also presents a methodological framework, which can help anyone aiming to implement an Ethereum decentralized application and demonstrates the practical use of the developed application by a Greek table olives producer. The application significantly improved the producer's product traceability by providing a secure, transparent, and efficient solution for tracking and tracing the products in the supply chain. The app reduced the time, increased the accuracy and reliability of data, improved supply chain efficiency, and helped the producer comply with international regulations and standards.

Ashish Kumar Tripathi, K. Akul Krishnan, Avinash Chandra Pandey

No abstract is available for this record.

Mohammed Alshehri

No abstract is available for this record.

Shuai Zhao, Wenli Li

The blockchain-based traceability system (BTS) can reduce product losses in the perishable goods market, which yields a loss-reduction effect, and offer authentic information, which triggers a premium effect. In a dual-channel perishable goods supply chain (DPGSC), including one supplier and retailer each, the supplier can operate the price of the direct channel, different or non-different from that of the traditional channel. To study the adoption of BTS in the supplier-led DPGSC, we employed a game-theoretical model to capture BTS adoption strategy under the differential and non-differential pricing policies and proposed an improved cost-sharing contract to boost the DPGSC performance. The results indicated that both the supplier and the retailer are willing to improve product quality, broaden the saleable region, and lower the production cost. The adoption of BTS mainly depends on the losses-reduction effect, premium effect, production cost, and tag cost, which is affected more by the premium effect than by the loss-reduction effect. Furthermore, their adoption is not always easier when the production cost is higher. Except for symmetric base demands, they benefit asynchronously from BTS. Synchronised adoptions can be realised only when the improved cost-sharing contract generates more profits and introduces excess momentum.Highlights Blockchain-based traceability system handles product losses and forged informationAdoption decision-making processes under two different pricing policies are studiedIn the adoption process, the premium effect outweighs the loss-reduction effectContract may introduce insufficient momentum, excess momentum, or new inefficiencyOnce excess momentum is formed, supply chain members' adoptions become synchronised

Andry Alamsyah, Sri Widiyanesti, Puspita Wulansari, Eva Nurhazizah · 9 authors

As one of the most popular drinks in the world, coffee has limitations in its complex and opaque supply chain. Consumers have difficulty verifying coffee quality according to the price they pay. However, innovative technologies such as blockchain emerge with the potential to support the coffee supply chain to be more transparent and traceable. Blockchain technology is a distributed database that allows for secure, transparent, and tamper-proof record-keeping, which makes it an ideal tool for tracking the movement of coffee beans throughout the supply chain, from farmers to roasters to retailers. Each step in the coffee supply chain could be logged and tracked using blockchain, thus supporting greater transparency. Traceability would make it easier to identify and track any issues or irregularities in the supply chain. We propose a model to transform a coffee industry supply chain business process into a blockchainable workflow. In addition, an application was developed to allow each stakeholder in the supply chain to contribute to the data collection and monitor the status of each coffee batch. The application prototype was implemented and evaluated in one of the coffee industries in Indonesia. This research will benefit farmers in getting fair prices and end-consumers getting quality assurance.

Jasna Mastilović, Dragan Kukolj, Žarko Kevrešan, Gordana Ostojić · 7 authors

In the field of blockchain (BC) technology application in the food supply chain (FSC), a patent portfolio is collected, described, and analyzed using Latent Dirichlet Allocation (LDA) modeling, with the aim of obtaining insight into technology trends in this emerging and promising field. A patent portfolio consisting of 82 documents was extracted from patent databases using PatSnap software. The analysis of latent topics using LDA indicates that inventions related to the application of BCs in FSCs are patented in four key areas: (A) BC-supported tracing and tracking in FSCs; (B) devices and methods supporting application of BCs in FSCs; (C) combining BCs and other ICT technologies in FSC; and (D) BC-supported trading in FSCs. Patenting of BC technology applications in FSCs started during the second decade of the 21st century. Consequently, patent forward citation has been relatively low, while the family size confirms that application of BCs in FSCs is not yet widely accepted. A significant increase in the number of patent applications was registered after 2019, indicating that the number of potential users in FSCs is expected to grow over time. The largest numbers of patents originate from China, India, and the US.

Rafael Granillo Macías, Isidro Jesús González-Hernández, Elìas Olivares-Benítez

Blockchain is an emerging technology with the potential to radically transform logistics in the highly complex environment of the agri-food supply chain. The key challenges of the agri-food sector include overcoming the limitations (time, cost and quality) to developing global and efficient transparency and traceability of food, eliminating expensive intermediaries, and ensuring no disruption between suppliers and retailers. This paper describes a practical approach by not only using smart contracts to integrate various stakeholders but also incorporating a Public Participation Geographic Information System platform to ensure traceability of the operations conducted in an agri-food supply chain. As a factor in improving distribution and minimising intermediaries, third-party logistics participation is included in this research. Through a case study, the entities and interactions between processes within a blockchain system based on a smart contract are identified. The findings reveal an innovative blockchain approach to logistics in the agri-food supply chain.

Yuling Sun, Xiaomei Song, Yihao Jiang, Jian Guo

Blockchain technology allows fresh agricultural enterprises to share records stored on the chain, and the technology can benefit information management systems, such as decentralization and transparency. This study uses game theory to examine a blockchain introduction strategy for fresh agricultural enterprises in a competitive environment, considering consumer traceability preferences. We establish a pricing decision model in traditional and blockchain traceability modes and identify optimal solutions. Additionally, we analyze the impact of the blockchain introduction strategy, consumer preferences, and blockchain influence factor on optimal pricing decisions. The results indicate that the introduction of blockchain could improve the profits of enterprises under certain conditions. Moreover, consumer traceability preferences and the blockchain influence factor could significantly affect the blockchain introduction strategy. We also discover that when the blockchain influence factor meets a certain range, introducing blockchain technique in the traceability system could shift demand from traditional enterprises to blockchain enterprises. The total market demand for blockchain enterprises under the blockchain traceability mode will increase, whereas that of traditional enterprises under the blockchain traceability mode will decrease. Both consumer traceability preferences and the blockchain influence factor could significantly affect optimal pricing. Finally, some management suggestions are provided for the traceability of fresh agricultural enterprises based on the research conclusions.

Aayushi Badhwar, Saniyat Islam, Caroline Swee Lin Tan

Blockchain Technology has shown tremendous potential to be a foundation for the currently shifting paradigm towards more traceable and transparent supply chains. This review highlights the opportunities that exist in adapting Blockchain Technology in the fashion and textile supply chain, while also providing insight into the challenges of adopting this technology. This paper provides a systematic review of the potential of Blockchain Technology within the fashion and textile industry’s supply chain to analyse its role in traceability, transparency, and product authenticity. To achieve this, a substantive number of research papers and non-scholarly resources have been scrutinised. An emphasis was placed on topics regarding Blockchain Technology (BT), the fashion and textile industry and supply chain (manufacturing and distribution), traceability, transparency, and product authenticity. The selected research papers range from empirical analysis, argumentative, case studies, opinion articles, review articles, short reports, and book chapters.

Ikram Hasan, Md. Mamun Habib, Zulkifflee Mohamed

This article explores the potential of blockchain database and Internet of Things (IoT) technologies to improve the trustworthiness of the agri-food supply chain. It provides an overview of the challenges facing the supply chain, including food safety, traceability, and sustainability, and how blockchain and IoT can address these challenges based on secondary data. This paper presents a case study of a blockchain-based platform that utilizes IoT sensors to provide end- to-end visibility and traceability of food products. The findings demonstrate the potential for this technology to improve food safety, reduce waste, and increase transparency in the agri-food supply chain. Overall, the study demonstrates the potentiality of blockchain and IoT in revolutionizing the agri-food industry and creating a more trustworthy, responsible and sustainable food system.

Rachita Gupta, Ravi Shankar

Purpose Food insecurity is a major concern for developing economies. Operational inadequacies get introduced with unorganized interactions among stakeholders in the food supply chain, affecting social, economic, environmental and operational (SEEO) aspects of a nation. This study analyzes India's largest food safety net program, Public Distribution System (PDS) and develops a perception-based model, mapping the root causes (of food insecurity) with possible solutions. The novelty lies in leveraging blockchain in the implementation of food traceability system. Design/methodology/approach Soft system methodology (SSM) is used to identify and analyze problems in PDS, leveraging the learning and inquiry process. It relies on system thinking and action research to create a defendable and rational model, which helps in proposing recommendations for addressing the problem. Findings Blockchain-enabled food traceability system increases transparency, thus enabling the fulfillment of basic food necessities for beneficiaries. Practical implications The proposed model enables policymakers to build a profound understanding of existing operational issues and provides insightful recommendations for making informed decisions to deal with the grave issue of food insecurity. Originality/value Unlike previous studies, this research attempts to understand operational inefficiencies during interactions among stakeholders. It proposes a perception-based conceptual model for the final implementation at the ground level. It also reveals significance of three systems: a delivery system, an enabling system empowering delivery system and a criteria system to control and monitor processes. This study thus bridges an important gap in the literature by proposing a blockchain-driven traceability system, under the control of criteria system, through the integration of system-thinking and action-research approach.

SatpalSing Rajput, Anvita Jadhav, Janhavi Gadge, Diya Tilani · 5 authors

For the past few years, as the demand for food has increased due to population, Food security has emerged as a major issue, because many intermediaries alter products to gain profits which in turn degrades the quality of the product and affects the health of the population. The current agricultural food supply chains have a number of significant issues, including plenty of participants, poor communication driven by lengthy supply chains, distrust between members, and centralized systems. Developing a traceability system for the agricultural food supply chain becomes more and more important as traditional agri-food logistics patterns can no longer meet market needs. We can build a system that keeps track of the product quality and other factors throughout the supply chain by using Blockchain technology along with various other technologies like sensors which are used to gather data from the growing stages of the product, IPFS which stores this data securely at one place and the entire data can be accessed by the consumer through RFID tags. This data can be accessed by the consumer who can verify the quality of the product. This can help maintain trust in the supply chain. In this paper, we have summarized a few previous related research and proposed a system for traceability in the agricultural supply chain.

Omkar Balekundri, Raghav Tigadi, Abhilasha Jayakkanavar

The Distributed Ledger Technology (DLT) that underpins various crypto currencies may have a profound impact on the global economy. The Supply Chain Management (SCM) is one of the areas where the DLT is currently being used. By using the Distributed Ledger Technology, blockchain has the potential to vastly enhance different supply chains by facilitating faster and more cost-effective delivery of products. The main benefits of using blockchain in SCM is that it provides an enhancement technique for products traceability, improves coordination among the producer, manufacturer, distributor, retailer and consumer. Also, facilities easier access for funding. In the recent years, the Food Supply Chain (FSC) has been using the blockchain to utilize the benefits of SCM and provide better results for the Food Supply Chain. In this paper, a model is proposed, FARMSUPPLY, which uses blockchain in a Food Supply Chain to provide a better view of farmers, products and retailers. In this model, a Ethereum blockchain method and smart contract for the verification and validation of various attributes at each stage of the food supply chain is presented.

Surbhi Bhatia, Abdulaziz Albarrak

The availability of food in a country and the capacity of its citizens to access, acquire, and receive enough food are both referred to as having food security. A crucial component of food security is ensuring and maintaining safe and high-quality goods, which the supply chain process should take into due deliberation. To enhance the food supply chain, organic and wholesome food items should be encouraged. Although packaged goods are evaluated and approved by legal authorities, there is no mechanism in place for testing and assessing the market’s available supply on a regular basis. As a result, food manufacturers are compelled to provide nutritious and healthy products. In this research, we propose an explainable artificial intelligence-based faster regions with convolutional neural networks (XAI-based Faster RCNN) model to evaluate the contents of the food items through user-friendly web-based front-end design and QR code. To validate each communication token in the network, an elliptic curve integrated encrypted scheme (ECIES) based on blockchain technology is utilized. Additionally, artificial rabbit optimization (ARO) is used to register each user and assign him a key. The user will gain a deeper understanding of machine learning (ML) and AI applications using the XAI technique. An EAI-based Faster RCNN model is proposed to help digitize information about food products, rapidly retrieve the information, and discover any hidden information in the quick response (QR) code that could have impacted the safety and quality of the food. The results of the experiments indicated that the proposed method requires less response time than other existing methods with the increase of payload and users. The Shapley additive explanation is used to obtain a legal plea for the laboratory test based on the nutritional information present in the QR code. The benefits provided by ECIES-based blockchain technology assist policymakers, manufacturers, and merchants in efficient decision-making, minimizing public health hazards, and improving welfare. This paper also shows that the accuracy achieved by the proposed method reached 99.53%, with the lowest processing time.

Hao Song, Wenfei Ge, Pan Gao, Wei Xu

Excellent jujube supply-chain management is of great significance to the development of the Xinjiang jujube industry. However, traditional jujube supply-chain management is faced with the dilemmas of opaque connection of transaction flow and capital flow information, unreliable product traceability information, and jujube farmers' lack of bargaining power. In this research, we propose a jujube supply-chain-management framework based on blockchain. Hyperledger fabric is the distributed solution platform of this research. The current blockchain-based traceability framework for agri-food emphasizes the construction process and ignores the performance and characteristics of the framework. This research optimizes the blockchain-network-topology architecture and storage cost of writing data. This not only solves the traceability of jujube, but also fills the gap in previous research on the traceability framework. Moreover, transactions are innovatively divided into common transactions and private transactions. Private transactions have enhanced the bargaining power of jujube farmers. Through the analysis of benchmark tests, the effectiveness and feasibility of the framework are verified.

S. Thangamayan, Kalyani Pradhan, Ganesh Babu Loganathan, S. Sitender · 6 authors

The typical food traceability system’s data layer is made up of relational databases managed by core businesses, which cannot ensure data security. It is inefficient and requires a lot of upkeep. The food supply chain has numerous actors, making it difficult for consumers to safeguard their rights when purchasing food with quality issues. Due to the numerous organizations involved in the food supply chain, food safety monitoring and traceability have become challenging. The supply chain’s major organizations have control and administrative authority over the data under the current food traceability system, which is overly centralized for traceability information. The safety and dependability of food may be ensured by using the food traceability system to track food information. We can witness a series of detailed insights into food from the manufacturing source to the consumption terminal. A blockchain-based food tracking system is created as a solution to these issues. On the Ethereum platform, the system was created. It was also employed in the blockchain system, in addition to its features of decentralization, tamper-proof, and traceability. To implement the data update service and the food recall function, introduce the Food and Drug Administration node. Consumers have the option to not only enquire about food traceability throughout the manufacturing process but also to file complaints regarding the traceability system’s rights protection.

Miss. Dhyanhvi Kale, Prof. Seema Rathod

In agriculture supply chain management block chain distributed ledger underpinning cryptocurrncies bit coin, represent, new innovative technological approach to realizing system. they provide fault-tolerance, immutability, transparency and full tractability of stored transaction record, as well as coherent Digital representation of physical assets and autonomous transaction execution. Trace-ability is critical in managing food quality and safety. Traditional Internet of Things (IoT) trace-ability systems offer viable solutions for food supply chain quality monitoring and trace-ability. However, majority of IOT solution rely on the centralized server-client paradigm, which makes is difficult for consumers to obtain all transaction information and track the origins of product. Block chain is an innovative technology that has potential to significance improve tracebility performance by providing security and complete transparency. However, the current literature does not fully explore benefit ,challenges and development method block chain based food traceability systems. As result ,the to identify block chain and IOT based solutions for food tracebility.

María Isabel Ortiz-Lizcano, Enrique Arias, Ángel Hernández Bravo, Blanca Caminero · 6 authors

BACKGROUND AND OBJECTIVE: One of the main tasks in a biobank consists in storing biological samples in a high-quality condition in order to future research. At moment, there exist many applications to manage a biobank. However, in general, these are web-based applications. In these web-based applications different tasks can be done. Among them, it is possible to remark the following: informed consent, confidentiality, non-profit, respect for quality and safety standards, including traceability of samples. In this paper, we describe a blockchain smart contract to ensure the traceability of the processes done in a biobank meaning a step forward to guarantee this traceability. METHODS: Use of blockchain technology to improve security, integrity and traceability of the processes carried out in a biobank. In particular IBM Hyperledger Fabric. RESULTS: As a result, a set of smart contracts have been developed describing the biobank processes. CONCLUSIONS: Improvement of the security, integrity, and traceability of samples in biobanks.

Durgesh Kumar, Rajendra Kumar Dwivedi

One of the important areas of study that needs focus on development in all emerging countries is agriculture and its supply chain. Due to the potential health risks, food supply and safety are also attracting global attention due to their significance. Using blockchain and IoT technologies, we have provided a methodology in this study for transforming traditional agriculture into smart farming. All parties participating in the agricultural food supply chain will be given an equal chance under this approach, even if they are not related. To minimize human involvement in data collection, recording, and verification, The smart model incorporates IoT devices. The validation of our unique model is compared to our own technique, which exclusively makes use of blockchain in the monitoring field without the use of IoT devices.

Fabian Dietrich, Louis Louw, Daniel Palm

Supply chains have evolved into dynamic, interconnected supply networks, which increases the complexity of achieving end-to-end traceability of object flows and their experienced events. With its capability of ensuring a secure, transparent, and immutable environment without relying on a trusted third party, the emerging blockchain technology shows strong potential to enable end-to-end traceability in such complex multitiered supply networks. This paper aims to overcome the limitations of existing blockchain-based traceability architectures regarding their object-related event mapping ability, which involves mapping the creation and deletion of objects, their aggregation and disaggregation, transformation, and transaction, in one holistic architecture. Therefore, this paper proposes a novel 'blueprint-based' token concept, which allows clients to group tokens into different types, where tokens of the same type are non-fungible. Furthermore, blueprints can include minting conditions, which, for example, are necessary when mapping assembly processes. In addition, the token concept contains logic for reflecting all conducted object-related events in an integrated token history. Finally, for validation purposes, this article implements the architecture's components in code and proves its applicability based on the Ethereum blockchain. As a result, the proposed blockchain-based traceability architecture covers all object-related supply chain events and proves its general-purpose end-to-end traceability capabilities of object flows.

Kakali Chatterjee, Ashish Singh, Neha Neha

No abstract is available for this record.

Shital Dinde, Suresh Shirgave

Traceability has become prominent in multi-tiered production systems. It provides assurance to consumers about the transparency and quality of the product. Blockchain food traceability has reasonable attention from the agri-food area. To boost the credibility, efficiency, and safety of the food products, the supply chain should quickly trace the entire lifecycle of food items from their starting point to each phase of the networks. Restaurant customers can trace their food from “farm to fork” with the help of QR codes and smart contracts. This study focuses on restaurant traceability as an example, in which the relationship between supply-chain partners and their networks is shown using a smart contract. The proposed system can build trust among entities that participate in the supply chain network, where distributed ledgers are often used to record and authenticate transactions.

Nongmeikapam Thoiba Singh, Saurav, Vibhu Saujanya Sharma, Abhishek Raizada · 6 authors

Blockchain, which has recently received a lot of attention, has a wide range of uses. Bitcoin, a widely used cryptocurrency, employs blockchain technology to authenticate transactions without relying on a central structure, thereby solving the problem of double spending. Consequently, the application that uses blockchain technology as its core ensures the authenticity of the data. The research uses a concept that is based on the decentralised blockchain to demonstrate that customers do not primarily rely on stores to evaluate the legitimacy of products. This study describes a decentralised blockchain architecture that is free of counterfeit items so that makers can use it to make real products without having to contact merchants directly, which will result in a significant reduction in the cost of product quality monitoring.