scholarly journals Blockchain based mechanism to eliminate frauds and tampering of land records

2021 ◽  
Vol 37 ◽  
pp. 01011
Author(s):  
D Devi ◽  
G Sai Rohith ◽  
S Shri Hari ◽  
K Sri Ramachandar

Data tampering and fraud in land records have increased drastically in the modern world. A data storage model using Blockchain and Interplanetary File System (IPFS) is proposed in this work. Land records and the farmer’s information are stored inside the Interplanetary file system. To avoid data faking, the hash address of the respective data generated by IPFS is stored in the blockchain. This proposed system when deployed on a large scale can outperform the existing methods of securing user data. One of the latest technological advancements in the software industry is the innovation of Blockchain Technology. This new technology has opened up a new business relationship platform that delivers feasibility, protection, and cheap rates. It provides a new foundation of trust for transactions that can facilitate a very streamlined workflow and a faster economy.

2020 ◽  
Author(s):  
Pranav C

UNSTRUCTURED The word blockchain elicits thoughts of cryptocurrency much of the time, which does disservice to this disruptive new technology. Agreed, bitcoin launched in 2011 was the first large scale implementation of blockchain technology. Also, Bitcoin’s success has triggered the establishment of nearly 1000 new cryptocurrencies. This again lead to the delusion that the only application of blockchain technology is for the creation of cryptocurrency. However, the blockchain technology is capable of a lot more than just cryptocurrency creation and may support such things as transactions that require personal identification, peer review, elections and other types of democratic decision-making and audit trails. Blockchain exists with real world implementations beyond cryptocurrencies and these solutions deliver powerful benefits to healthcare organizations, bankers, retailers and consumers among others. One of the areas where blockchain technology can be used effectively is healthcare industry. Proper application of this technology in healthcare will not only save billions of money but also will contribute to the growth in research. This review paper briefly defines blockchain and deals in detail the applications of blockchain in various areas particularly in healthcare industry.


Author(s):  
Ka Sun ◽  
Chonglong Wu ◽  
Gang Liu ◽  
Yingying Li ◽  
Pinqian Wang

Author(s):  
Pankaj Lathar ◽  
K. G. Srinivasa ◽  
Abhishek Kumar ◽  
Nabeel Siddiqui

Advancements in web-based technology and the proliferation of sensors and mobile devices interacting with the internet have resulted in immense data management requirements. These data management activities include storage, processing, demand of high-performance read-write operations of big data. Large-scale and high-concurrency applications like SNS and search engines have appeared to be facing challenges in using the relational database to store and query dynamic user data. NoSQL and cloud computing has emerged as a paradigm that could meet these requirements. The available diversity of existing NoSQL and cloud computing solutions make it difficult to comprehend the domain and choose an appropriate solution for a specific business task. Therefore, this chapter reviews NoSQL and cloud-system-based solutions with the goal of providing a perspective in the field of data storage technology/algorithms, leveraging guidance to researchers and practitioners to select the best-fit data store, and identifying challenges and opportunities of the paradigm.


2019 ◽  
Vol 30 (2) ◽  
pp. 285-305 ◽  
Author(s):  
Jörg Weking ◽  
Michael Mandalenakis ◽  
Andreas Hein ◽  
Sebastian Hermes ◽  
Markus Böhm ◽  
...  

AbstractBlockchain technology enables new ways of organizing economic activities, reduces costs and time associated with intermediaries, and strengthens the trust in an ecosystem of actors. The impact of this seminal technology is reflected by an upcoming research stream and various firms that examine the potential uses of blockchain technology. While there are promising use cases of this new technology, research and practice are still in their infancy about altering existing and creating new business models. We develop a taxonomy of blockchain business models based on 99 blockchain ventures to explore the impact of blockchain technology on business models. As a result, we identify five archetypal patterns, which enhance our understanding of how blockchain technology affects existing and creates new business models. We propose to use these results to discover further patterns fueled by blockchain technology and illustrate how firms can use blockchain technology to innovate their business models.


2021 ◽  
Vol 2 (1) ◽  
pp. 78-84
Author(s):  
Yevhen Sotchenko

The purpose of the article is to analyze the current state of foreign trade in the industrial blockchain of the steel industry, the existing digital platform has gradually formed a large-scale heterogeneous distributed environment. The problems of further development of the metallurgical complex of Ukraine in the world electronic system of international cooperation are determined. Methodology. The survey is based on a blockchain technology is an interlinked systematic chain of blocks that contains transaction history and other user data. It works under the principle of decentralized distributed digital ledger. Results. Experimental tests prove that production companies, logistics, international payments and consumers can participate in the information certification of steel products via the modern information system. Consumers can understand the real product manufacturing process, effectively avoiding of the incomplete information and low transparency in the traditional information traceability process, and effectively trace the quality of steel products. The system provides an effective payments scheme for promoting the transformation and upgrading of the modern technology steel industry. Practical implications. In view of the low transparency of information traceability of current steel products and the defects of information islands, in this article the blockchain-based steel smart contract payment technology quality traceability system is developed and adopted the alliance chain mode and the new digital blockchain platform. The article describes the use of smart payment technology in a full-fledged financial transaction as a transfer funds in cryptocurrency to electronic bank accounts, as well as the transfer of commercial information, including contracts. To do this, the assets and terms of the contract are encoded and placed in the block chain, then the contract is distributed is saved on a set of network nodes and is executed after the condition is triggered. The fulfillment of the obligations of the parties is checked automatically. It is worth noting that the fact that smart contracts only react to transactions. If the asset or the currency is transferred to the program, it starts monitor compliance with the terms of the contract. How as soon as they are fulfilled, the seller receives money, and the buyer is a shipment goods. Value/originality. Blockchain technologies enable the use of business information systems that are highly resistant to technical failures and malicious attacks. Costs and time of carrying out business operations are significant.


Author(s):  
Randhir Kumar ◽  
Rakesh Tripathi

The future applications of blockchain are expected to serve millions of users. To provide variety of services to the users, using underlying technology has to consider large-scale storage and assessment behind the scene. Most of the current applications of blockchain are working either on simulators or via small blockchain network. However, the storage issue in the real world is unpredictable. To address the issue of large-scale data storage, the authors have introduced the data storage scheme in blockchain (DSSB). The storage model executes behind the blockchain ledger to store large-scale data. In DSSB, they have used hybrid storage model using IPFS and MongoDB(NoSQL) in order to provide efficient storage for large-scale data in blockchain. In this storage model, they have maintained the content-addressed hash of the transactions on blockchain network to ensure provenance. In DSSB, they are storing the original data (large-scale data) into MongoDB and IPFS. The DSSB model not only provides efficient storage of large-scale data but also provides storage size reduction of blockchain ledger.


Author(s):  
Jan Stender ◽  
Michael Berlin ◽  
Alexander Reinefeld

Cloud computing poses new challenges to data storage. While cloud providers use shared distributed hardware, which is inherently unreliable and insecure, cloud users expect their data to be safely and securely stored, available at any time, and accessible in the same way as their locally stored data. In this chapter, the authors present XtreemFS, a file system for the cloud. XtreemFS reconciles the need of cloud providers for cheap scale-out storage solutions with that of cloud users for a reliable, secure, and easy data access. The main contributions of the chapter are: a description of the internal architecture of XtreemFS, which presents an approach to build large-scale distributed POSIX-compliant file systems on top of cheap, off-the-shelf hardware; a description of the XtreemFS security infrastructure, which guarantees an isolation of individual users despite shared and insecure storage and network resources; a comprehensive overview of replication mechanisms in XtreemFS, which guarantee consistency, availability, and durability of data in the face of component failures; an overview of the snapshot infrastructure of XtreemFS, which allows to capture and freeze momentary states of the file system in a scalable and fault-tolerant fashion. The authors also compare XtreemFS with existing solutions and argue for its practicability and potential in the cloud storage market.


2019 ◽  
Author(s):  
Noah Zimmerman ◽  
Nicholas Tatonetti ◽  
Joel Dudley

UNSTRUCTURED Incentive alignment is a fundamental challenge to improving the financial and operational efficiency of the healthcare system in the United States. The current system incentivizes payers to reduce utilization and providers to perform procedures, while patients are caught between cost savings and utilization. Blockchain is an emerging technology that enables the construction of large-scale open digital networks with characteristics that can incentivize participants towards a common goal. There is an opportunity to use blockchain technology to reimagine how we cooperate to promote health and potentially improve efficiency of the healthcare system. In this perspective, we discuss the strengths and limitations of this new technology through the lens of healthcare. We explore how challenges in healthcare (e.g. costs, accessibility, and data ownership) can be addressed by blockchain technology and, equally important, how they cannot. Through the evaluation of existing projects, we find clear advantages and disadvantages of the technology and identify open areas of innovation for healthcare executives, academics, and entrepreneurs.


2018 ◽  
Vol 29 (3) ◽  
pp. 1-16 ◽  
Author(s):  
Jing Weipeng ◽  
Tian Dongxue ◽  
Chen Guangsheng ◽  
Li Yiyuan

The traditional method is used to deal with massive remote sensing data stored in low efficiency and poor scalability. This article presents a parallel processing method based on MapReduce and HBase. The filling of remote sensing images by the Hilbert curve makes the MapReduce method construct pyramids in parallel to reduce network communication between nodes. Then, the authors design a massive remote sensing data storage model composed of metadata storage model, index structure and filter column family. Finally, this article uses MapReduce frameworks to realize pyramid construction, storage and query of remote sensing data. The experimental results show that this method can effectively improve the speed of data writing and querying, and has good scalability.


2020 ◽  
Author(s):  
Pranav C

Abstract: The word blockchain elicits thoughts of cryptocurrency much of the time, which does disservice to this disruptive new technology. Agreed, bitcoin launched in 2011 was the first large scale implementation of blockchain technology. Also, Bitcoin’s success has triggered the establishment of nearly 1000 new cryptocurrencies. This again lead to the delusion that the only application of blockchain technology is for the creation of cryptocurrency. However, the blockchain technology is capable of a lot more than just cryptocurrency creation and may support such things as transactions that require personal identification, peer review, elections and other types of democratic decision-making and audit trails. Blockchain exists with real world implementations beyond cryptocurrencies and these solutions deliver powerful benefits to healthcare organizations, bankers, retailers and consumers among others. One of the areas where blockchain technology can be used effectively is healthcare industry. Proper application of this technology in healthcare will not only save billions of money but also will contribute to the growth in research. This review paper briefly defines blockchain and deals in detail the applications of blockchain in various areas particularly in healthcare industry.


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