scholarly journals Digital Market using Blockchain Technology in Cloud Environment

2020 ◽  
Vol 9 (6) ◽  
pp. 859-863
Keyword(s):  
Performance Optimization ◽  
Financial Services ◽  
Research Work ◽  
Third Party ◽  
Smart Contracts ◽  
Cloud Environment ◽  
Market System ◽  
Blockchain Technology ◽  
Block Chain ◽  
Iot Devices

The majority organizations associate blockchain technology with the financial services manufacturing, it has concealed use within the manufacturing, government, healthcare, and education sectors as well. The Block chain is an unlock and dispersed ledger. The Blockchain contract between two or more parties is confirmable and everlasting documentation. The Proposed System is smart market system, in this system Producers can sell the product directly in the market under the municipal counsil supervision or through online using block chain technology in cloud environment. The planned work is to intend a decentralized cloud server. We are powerful authentication where the information regarding all the products is encrypted. Those who have registered in the system come to know the product details about selling and purchasing. A highly developed method in cryptography can be used to address the issue of confidentiality, and some system could even monitor how much contact persons have. The blockchain technology is united with cloud computing to offer the enlarged transparency and efficient market system. The proposed research work can apply merkle tree in the designed algorithm on smart contracts performance optimization and automatic repair. We acquire benefits of the scattered confirmation security of the Blockchain technology for financial transaction verification and influence smart contracts for protected service organization. In this system bitcoin, cryptocurrencies or any other money transfer mechanism is used for transaction. Without a third party dealings may get more profit for both sides. Different types of on-site circumstances are collected and checked by installing sensors that are IoT devices in different services, and on-site calculating devices are restricted slightly if required.

scholarly journals IoT–smart contracts in data trusted exchange supplied chain based on block chain

2020 ◽  
Vol 10 (1) ◽  
pp. 438
Author(s):  
S. Ganesh Kumar ◽  
A. Murugan ◽  
B. Muruganantham ◽  
B. Sriman
Keyword(s):  
Internet Of Things ◽  
Data Exchange ◽  
Third Party ◽  
Data Sets ◽  
Smart Contracts ◽  
Blockchain Technology ◽  
Sensor Devices ◽  
Damage Data ◽  
Block Chain ◽  
Temperature Records

Internet of Things (IoT) assumes a critical part in the advancement of different fields. The IoT data trusted exchange in recent year extend of uses influence an awesome request and increasing scale. In such a platform, exchange the data sets that they require and specialist organization can search. However, the enough trust as the third-party mediators for data exchange in centralized infrastructure cannot provide. This paper proposes a blockchain for IoT data trusted exchange based on decentralized solution. In particular, the fundamental standards of blockchain in verify manner, individuals can communicate with each other without a confided in mediator intermediary. Blockchain enable us to have a distributed, digital ledger. IoT (Internet of Things) sensor devices (zigbee) utilizing blockchain technology to assert public availability of temperature records, tracking location shipment, humidity, preventing damage, data immutability. The sensor devices looking the temperature, location, damage of each parcel during the shipment to completely guarantee directions. In blockchain all data is got moved from one position to another, where a smart contract assesses against the product attributes. Ethereum blockchain and smart contracts atlast it gets through knowledge a design to be copied and presents its decentralized distributed digital ledger, auditable, transparent, features visually.

scholarly journals Third Party Certification of Agri-Food Supply Chain Using Smart Contracts and Blockchain Tokens

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5307
Author(s):  
Ricardo Borges dos Santos ◽  
Nunzio Marco Torrisi ◽  
Rodrigo Palucci Pantoni
Keyword(s):  
Supply Chain ◽  
Mobile Application ◽  
Consumer Behaviour ◽  
Economic Incentives ◽  
Third Party ◽  
Smart Contracts ◽  
Proof Of Concept ◽  
Socially Responsible ◽  
The Public ◽  
Blockchain Technology

Every consumer’s buying decision at the supermarket influences food brands to make first party claims of sustainability and socially responsible farming methods on their agro-product labels. Fine wines are often subject to counterfeit along the supply chain to the consumer. This paper presents a method for efficient unrestricted publicity to third party certification (TPC) of plant agricultural products, starting at harvest, using smart contracts and blockchain tokens. The method is capable of providing economic incentives to the actors along the supply chain. A proof-of-concept using a modified Ethereum IGR token set of smart contracts using the ERC-1155 standard NFTs was deployed on the Rinkeby test net and evaluated. The main findings include (a) allowing immediate access to TPC by the public for any desired authority by using token smart contracts. (b) Food safety can be enhanced through TPC visible to consumers through mobile application and blockchain technology, thus reducing counterfeiting and green washing. (c) The framework is structured and maintained because participants obtain economical incentives thus leveraging it´s practical usage. In summary, this implementation of TPC broadcasting through tokens can improve transparency and sustainable conscientious consumer behaviour, thus enabling a more trustworthy supply chain transparency.

scholarly journals Managing the Student Results using Block Chain to Facilitate all the Stakeholders of Educational System

2019 ◽  
Vol 9 (2) ◽  
pp. 5082-5085
Keyword(s):  
Educational Institution ◽  
User Interaction ◽  
Ease Of Use ◽  
Third Party ◽  
Smart Contracts ◽  
Time Result ◽  
Educational Credentials ◽  
Block Chain ◽  
Result Management ◽  
Do So

This paper expounds the use of Blockchain to record marks of students as it is very tedious to record and verify candidate’s credentials for academia and employer purpose. We find it very difficult to maintain the student marks for any college or university. Any educational institution is duty bound to provide the student results at any point of time. Result of a student can be challenged at any point of time. So, any institute is supposed to store and maintain the results over a period of time. In this paper, an attempt has been made to solve some of the difficulties of students’ result management system. Now education uses Bitcoin technology to record credentials. We have used Block chain technology to record student’s achievements in a cheap, secure and public way. It is also beneficial for employer to spend valuable time checking educational credentials by having to call universities or to pay a third party to do so. In this paper, we have used ethereum as the underlying blockchain due to its large scalability and ease of use. For development, we used Truffle to develop smart contracts and integrated it with the frontend using Web3JS. For deployment, our smart contracts on the blockchain network, we have used Infura and frontend will be deployed on Heroku for user interaction. My block chain is currently on Ropsten Testnet.

scholarly journals Design and Implementation a Smart E-Voting Model : Decentralization Using Blockchain

2019 ◽  
pp. 109-114
Author(s):  
Shantanu bindewari ◽  
Jayesh Surana
Keyword(s):  
Research Work ◽  
Consensus Protocol ◽  
Design And Implementation ◽  
Direct Election ◽  
Blockchain Technology ◽  
Hash Algorithm ◽  
Voting System ◽  
Block Chain ◽  
Election Systems ◽  
Voting Model

The transparency of the block-chain allows more auditing and considerate of elections. These attributes are particular of the necessities of a voting system. These features derive from decentralized network, and can bring additional democratic processes to elections, particularly to direct election systems. For e-voting to develop further open, transparent, and independently auditable, a possible resolution would be base it on blockchain technology. In this research work to proposed technique for voting system using blockchain. The blockchain will be publicly provable and distributed in a method that no one will be intelligent to corrupt it. In this research work proposed a blockchain-based model with Consensus Protocol and SHA256 hash algorithm related with the priorities of the ballot-privacy, veri?ability, suitability, extensiveness, uniqueness, sturdiness, and coercion- resistance.

scholarly journals A Survey on Securing Medical Data in Cloud Using Blockchain

2021 ◽  
Author(s):  
HariPriya K ◽  
Brintha NC ◽  
Yogesh C K
Keyword(s):  
Health Care ◽  
Electronic Health Records ◽  
Deep Understanding ◽  
Medical Data ◽  
Cloud Environment ◽  
Healthcare Data ◽  
The Past ◽  
Blockchain Technology ◽  
Block Chain ◽  
Security Concerns

Security is a major concern in every technology that is introduced newly to facilitate the existing mechanism for better maintenance and handling. This is also the case in electronic health records. The data of the hospitals and the associated patients gets digital in the past few decades. The data is stored in the cloud for various reasons such as convenience of the participating entities to access it, easy maintenance. But, with this there also arises various security concerns. It has been observed from the reason studies that blockchain is used as the means of securing the healthcare data in the cloud environment.This study discusses the following. 1) Applications of blockchain in cloud environment, 2) Applications of blockchain in securing healthcare data 3) General issues and security concerns in blockchain technology and what features of block chain makes it suitable for securing health care a nd what features restricts it from using.This work helps the future researchers in getting a deep understanding of the in and out of applying blockchain in cloud and healthcare environment.

scholarly journals A Research on impact of Blockchain in Healthcare

2019 ◽  
Vol 8 (9S2) ◽  
pp. 35-40
Keyword(s):  
Third Party ◽  
Security And Privacy ◽  
Privacy Concerns ◽  
Blockchain Technology ◽  
Location Sharing ◽  
Authentication And Authorization ◽  
Promising Solution ◽  
Iot Devices ◽  
Remote Patient ◽  
Education Science

Blockchain refers to a distributed ledger technology that represents an innovation in recording and sharing information without the need for a trusted third party. Blockchain technology offers new tools for security and privacy concerns. Marching towards digitization and analytics, this technology emerges as a promising solution for authentication and authorization issues. It sounds so amazing that this technology that originated with cryptocurrencies could not only be applied in digital contracts, financial and public records, and property ownership but also in medicine, education, science and so on. The use case of this technology springs up in every possible direction. This article first analyses the need for this breakthrough technology and explains how this technology works. This work presents a review on various types of blockchain, the consensus mechanisms used, their advantages and limitations. It provides an overview on the various use cases of this technology. This work mainly focuses on its application in Healthcare. The goal of this article is to analyze the usage of Blockchain technology in various fields of Healthcare such as Electronic Health Record, Health Insurance, Biomedical Research, Drug Supply, Medical Education, Remote Patient Monitoring, Interoperability, Location Sharing etc., It investigates the current research trends and finds the gaps and limitations of these approaches. Moreover, it proposes some enhancements to fill in the gaps in the present approach. This work also analyses the importance of Wearable Internet of Things (IoT) devices in HealthCare and the integration of these devices with Blockchain. Finally, this work concludes by comparing Blockchain 3.0 with previous versions.

A Triplicate Smart Contract Model using Blockchain Technology

2017 ◽  
Vol DC CPS 2017 (01) ◽  
pp. 1-10 ◽  
Author(s):  
Peter Eze ◽  
Tochukwu Eziokwu ◽  
Chinedu Okpara
Keyword(s):  
Financial Services ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Current Implementation ◽  
Legal Model ◽  
Block Chain ◽  
Physical Assets ◽  
Technical Model ◽  
Digital Assets ◽  
New Framework

An emergent use of the blockchain technology is to enable the transfer of digital assets between two parties. An extension to this is the Smart Property in which physical assets could be transferred too. Another extension is the exchange of services of all kinds in form of digitally executed contracts. In this paper, the problems with existing attempts to implement an all-inclusive smart contract platform were identified and a new framework proposed. In this framework, the technical and legal terms of any contract could be executed digitally if prepared with appropriate legal prose and required parameters for each of the terms of the contract. The cores of the framework are the technical, business and legal models, which are connected to each other. The technical model adapts block chain technology while ensuring granularity in implementing the terms of the contract as presented by the legal model using legal prose and necessary parameters. Using the proposed framework, some questions that have persisted with current implementation of Smart contracts that involves the blockchain were answered. The framework improves the efficiency and practicability of using smart contract for physical assets and non-financial services with emphasis. The contribution is mainly on ensuring an adoptable and practicable smart contract platform.

Blockchain Technology for Convergence

2021 ◽  
pp. 1-17
Author(s):  
Manpreet Kaur ◽  
Shikha Gupta
Keyword(s):  
Decision Making ◽  
Financial Services ◽  
Data Privacy ◽  
Unified Model ◽  
Third Party ◽  
Comprehensive Overview ◽  
Blockchain Technology ◽  
Disruptive Innovations

Blockchain technologies are drawing attention after the success of cryptocurrency. Due to the inherent features, such as decentralization, transparency, security, immutability, and integrity, they have already become the prime choice of researchers and scientists. Blockchain is among the most disruptive innovations which have the potential to reshape the behavior of many businesses and industries. Blockchain applications are based on DLT in which public ledger can be accessed by everyone by eliminating the need of third party. Although the power of AI allows the intelligence and decision-making powers of machines in the same way as humans, it relies on a unified model for training and validating datasets. However, the unified nature of AI poses many threats to data privacy and data tempering. Thus, the unique features of blockchain technology makes its application attractive in almost every field including financial services, healthcare, IoT, and many more. This chapter presents a comprehensive overview on blockchain and its integration with AI to explore numerous capabilities.

scholarly journals Efficient Concurrent Execution of Smart Contracts in Blockchain Sharding

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Yan Wang ◽  
Jixin Li ◽  
Wansheng Liu ◽  
Aiping Tan
Keyword(s):  
Performance Optimization ◽  
Concurrency Control ◽  
Critical Issue ◽  
Smart Contracts ◽  
Throughput Performance ◽  
Concurrent Execution ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Execution Strategy ◽  
Feature Information

Throughput performance is a critical issue in blockchain technology, especially in blockchain sharding systems. Although sharding proposals can improve transaction throughput by parallel processing, the essence of each shard is still a small blockchain. Using serial execution of smart contract transactions, performance has not significantly improved, and there is still room for improvement. A smart contract concurrent execution strategy based on concurrency degree optimization is proposed for performance optimization within a single shard. This strategy is applied to each shard. First, it characterizes the conflicting contract feature information by executing a smart contract, analyzing the factors that affect the concurrent execution of the smart contracts, and clustering the contract transaction. Second, in shards with high transaction frequency, considering the execution time, conflict rate, and available resources of contract transactions, finding a serializable schedule of contract transactions by redundant computation and a Variable Shadow Speculative Concurrency Control (SCC-VS) algorithm for smart contract scheduling is proposed. Finally, experimental results show that the strategy increases the concurrency of smart contract execution by 39% on average and the transaction throughput of the whole system by 21% on average.

scholarly journals Cypher Cab - A Blockchain enabled Transportation Application

2021 ◽  
Vol 9 (VI) ◽  
pp. 3589-3592
Author(s):  
Aditya Raj
Keyword(s):  
Carbon Emissions ◽  
Third Party ◽  
Smart Contracts ◽  
High Service ◽  
Blockchain Technology ◽  
Ride Sharing ◽  
Distributed Ledger

Ridesharing is a transportation strategy that allows drivers to share their trips with other people which results in less travel expenses. It also minimizes traffic congestions and carbon emissions. Currently, most of the existing ride-sharing services rely on a central third party, like Uber, Ola, Didi which charges high service fees. In this paper, we are using blockchain technology to build a smart ride-sharing platform - CypherCab. All the services from registering as a driver, to using this platform for ridesharing will be written directly to the blockchain distributed ledger. Utilizing the decentralized nature of blockchain, the data stored in the blocks will be stored in a distributed ledger, hence removing the dependency on a central third-party server. Moreover, blockchain enables us to remove intermediaries and allows direct transactions between the driver and passengers. In this paper, we have implemented a prototype using smart contracts in the Ethereum network and Ganache test network.

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