Blockchain Technology

2021 ◽  
pp. 140-151
Author(s):  
Suvarna Sharma ◽  
Puneeta Rosmin ◽  
Amit Bhagat
Keyword(s):  
Linear Chain ◽  
White Paper ◽  
Peer To Peer ◽  
Electronic Cash ◽  
Short Introduction ◽  
Blockchain Technology ◽  
The Future ◽  
The Web

Blockchain, as the name suggests, is a linear chain of blocks. It is a digital ledger that holds information on transactions taking place over the web. So every block contains data in the form of coding that is organized in a chronological manner. In 2004, a concept called “reusable proofs of work” was introduced by Hal Finney. In 2009, a mysterious white paper titled “Bitcoin: A Peer to Peer Electronic Cash System,” by visionary Satoshi Nakamoto gave birth to the concept of blockchain. This is a survey of blockchain technology that first provides a short introduction of the blockchain, discussing its advantages and followed by possible limitations and their possibilities for the future.

Cryptocurrencies, Blockchain Technology and Sustainability

2020 ◽  
Author(s):  
Burcu Sakız ◽  
E. Ayşen Hiç Gencer
Keyword(s):  
Decentralized Control ◽  
White Paper ◽  
Central Banking ◽  
Peer To Peer ◽  
Digital Currency ◽  
Blockchain Technology ◽  
Distributed Ledger ◽  
Peer Network ◽  
Peer To Peer Network ◽  
Made In

Satoshi Nakamoto is the name used by the presumed pseudonymous person or persons believed to be the inventor of cryptocurrency Bitcoin, came up with the concept of blockchain as a core component of it when published a white paper on “BitCoin: A peer to peer electronic cash system” in 2008, blockchain technology made its public debut. Bitcoin is generally considered the first decentralized cryptocurrency and since the release of it, over 6,000 altcoins have been created. Cryptocurrencies use decentralized control as opposed to well-known, traditional centralized digital currency and also central banking systems. The decentralized control of each cryptocurrency works through distributed ledger technology, typically a blockchain. Blockchain is a system that in which a record of transactions made in cryptocurrencies are maintained across several computers/servers that are linked in a peer-to-peer network. Blockchain based applications provides many opportunities to create a more sustainable world. This paper contribute to the discussion on future avenues for sustainability especially in terms of cryptocurrencies and blockchain based platforms and services.

Consequent Formation in Security With Blockchain in Digital Transformation

2020 ◽  
pp. 122-144
Author(s):  
Shanthi Makka ◽  
Gagandeep Arora ◽  
B. B. Sagar
Keyword(s):  
Real Time ◽  
Cyber Security ◽  
Industrial Applications ◽  
Peer To Peer ◽  
Digital Transformation ◽  
P2p Network ◽  
High Demand ◽  
Blockchain Technology ◽  
The Future ◽  
Digital Transactions

Blockchain technology makes use of a centralized, peer-to-peer (P2P) network of databases, also called nodes, to validate and record digital transactions between individual users located anywhere across the globe. These transactions often take place through the exchange of cryptocurrencies such as bitcoins, Ethereum, and Ripple, etc. The security and transparency that is inherently present in digital transactions place blockchain technology in high demand across various industrial applications. Each node updates its database in real-time as and when transactions occur. The transaction gets authorized only when a majority of the nodes in the network validate the transaction. Once the verification is complete, a block, consisting of hash and keys, is generated for each new transaction and is linked to previous transactions in every database. Every node updates its database with the new block. A hacker would have to break down every node in the system to commit fraud. Blockchain could play a major role in maintaining the cyber security of digital transactions in the future.

scholarly journals A survey: applications of blockchain in the Internet of Vehicles

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Chao Wang ◽  
Xiaoman Cheng ◽  
Jitong Li ◽  
Yunhua He ◽  
Ke Xiao
Keyword(s):  
Peer To Peer ◽  
Comprehensive Analysis ◽  
Research Interest ◽  
Future Research ◽  
The Internet ◽  
Research Directions ◽  
Internet Of Vehicles ◽  
Blockchain Technology ◽  
The Future ◽  
Future Research Directions

AbstractBlockchain technology has completely changed the area of cryptocurrency with a Peer-to-Peer system named Bitcoin. It can provide a distributed, transparent and highly confidential database by recording immutable transactions. Currently, the technique has obtained great research interest on other areas, including the Internet of vehicles (IoVs). In order to solve some centralized problems and improve the architecture of the IoVs, the blockchain technology is utilized to build a decentralized and secure vehicular environment. In this survey, we aim to construct a comprehensive analysis on the applications of blockchain in the IoV. This paper starts with the introduction of the IoVs and the blockchain. Additionally, some existing surveys on the blockchain enabled IoVs are reviewed. Besides, the combination of the blockchain technology and the IoVs is analyzed from seven aspects to describe how the blockchain is implemented in the IoVs. Finally, the future research directions related to the integration are highlighted.

Blockchain Technology-Security Booster

2021 ◽  
pp. 128-139
Author(s):  
Harsha Kundan Patil
Keyword(s):  
White Paper ◽  
Peer To Peer ◽  
Smart Contracts ◽  
Digital Information ◽  
Computing Power ◽  
The Public ◽  
Blockchain Technology ◽  
Time Stamps ◽  
Computation Algorithm ◽  
Security Concern

“Blockchain” as the name suggests is the chain of blocks. It is the chunk of digital information (blocks) that are connected through the public databases (Chain). It is nothing but the newer version of file organisation. Blocks store digital information like actual record of any transaction, details of involve entities in the transaction, time stamps, and other metadata of the transactions. Blocks also have unique ids, which are known as hash. Blockchain technology is built using peer-to-peer networking. Anyone who is on network can access the blocks. There is no centralised community to control the blockchain. It is operated by miners, the peoples who lend their computing power to the network to solve the complex computation algorithm problems. These blocks are stored in multiple computers. Due to its distribution and decentralisation, the validation process is broadcast in nature, which provides it “the trusted approach”. Blockchain enables security and tamperproof capabilities for storing data and smart contracts. Any tampering of data attempted by a node or user in a block changes the hash of the block. The blockchain technology has the capability to face and provides the solution to fight with the problem of risk and security concern online. In 2008, a mysterious white paper titled “Bitcoin: A Peer to Peer Electronic Cash System”, by visionary Satoshi Nakamoto gave birth to the concept of blockchain. The chapter explains the structure of blockchain technology in detail and enlighten the aspects that make blockchain technology the secure concept of today's world.

EVOLUTION AND FUTURE OF BLOCKCHAIN: FROM CRYPTOCURRENCIES TO INDUSTRIAL APPLICATIONS

10.6036/10226 ◽  
2021 ◽  
Vol 96 (6) ◽  
pp. 559-560
Author(s):  
VALENTIN SANTAMARIA GONZALEZ ◽  
MIGUEL BENAVENT DE BARBERA ◽  
JESUS HERENCIA ANTON ◽  
CRISTINA CARRASCOSA COBOS
Keyword(s):  
White Paper ◽  
Industrial Applications ◽  
Peer To Peer ◽  
Electronic Cash ◽  
System A ◽  
System 1

As is well known, in 2009 the first article on the Bitcoin concept as an electronic transaction system "A peer-to-peer Electronic Cash System" [1] appeared, which, unlike other predecessor systems, brings the great novelty of being based on a transaction history or "Ledger" following the Blockchain concept [2]. We can consider Bitcoin as digital hard money or as its white paper [1] (Nakamoto's article) says: "An electronic cash system".

Can Bitcoin be the Future of Digital Payments?

2019 ◽  
Vol 10 (6) ◽  
pp. 489-500
Author(s):  
Andrea Valente ◽  
◽  
David Atkinson ◽  
Keyword(s):  
Price Volatility ◽  
Global Scale ◽  
White Paper ◽  
Innovative Technology ◽  
Policy Makers ◽  
The Future ◽  
Key Drivers ◽  
Digital Payments ◽  
Robust Regulation ◽  
Stakeholder Acceptance

This study aimed to investigate the conditions in which Bitcoin has developed as a leading cryptocurrency and, according to Nakamoto (2008), could become an instrument for everyday payments around the world. In comparison to other digital payment solutions, Bitcoin is based on a peer-to-peer electronic cash system using “the blockchain”. This innovative technology allows for decentralised storage and movement of currency in a fully anonymous way, introducing advantageous methods for encrypted security and faster transactions (Hagiu & Beach, 2014). Scepticism regards Bitcoin’s foundation, energy consumption and price volatility, however, did not take long to arise (Holthaus, 2017). Ten years from its white paper release, Bitcoin is further supported by the same drivers which could sustain its growth as the future of digital payments (Russo, 2018). In order to investigate the key drivers and feasibility of acceptance, a London based survey was used to understand the desirability of Bitcoin as a day-to-day tool for digital payments. Additionally, this research analysed Bitcoin’s stakeholders and forecast drivers of sustainability for its application to become the future of the payment industry. A space which relies on policies that involve multiple layers of society, governments, regulators and tech-firms, all on a global scale. The findings confirmed how the increasing lack of trust of political and financial institutions, coupled with the increasing cases of data-breaches by tech-firms, encouraged over 70% of respondents to consider more decentralised and anonymous methods for their day-to-day actions; like payments. Policy makers need to cope with societies increasingly separating politically but gathering together digitally (LBS, 2017). For Bitcoin to truly establish itself as a global digital payment solution, key stakeholder acceptance must converge alongside the introduction of more robust regulation.

scholarly journals ESR white paper: blockchain and medical imaging

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
◽  
Elmar Kotter ◽  
Luis Marti-Bonmati ◽  
Adrian P. Brady ◽  
Nandita M. Desouza
Keyword(s):  
Medical Imaging ◽  
Image Data ◽  
Distributed Database ◽  
Relevant Information ◽  
White Paper ◽  
Imaging Data ◽  
Data Set ◽  
Blockchain Technology ◽  
Potential Applications ◽  
Basic Technology

AbstractBlockchain can be thought of as a distributed database allowing tracing of the origin of data, and who has manipulated a given data set in the past. Medical applications of blockchain technology are emerging. Blockchain has many potential applications in medical imaging, typically making use of the tracking of radiological or clinical data. Clinical applications of blockchain technology include the documentation of the contribution of different “authors” including AI algorithms to multipart reports, the documentation of the use of AI algorithms towards the diagnosis, the possibility to enhance the accessibility of relevant information in electronic medical records, and a better control of users over their personal health records. Applications of blockchain in research include a better traceability of image data within clinical trials, a better traceability of the contributions of image and annotation data for the training of AI algorithms, thus enhancing privacy and fairness, and potentially make imaging data for AI available in larger quantities. Blockchain also allows for dynamic consenting and has the potential to empower patients and giving them a better control who has accessed their health data. There are also many potential applications of blockchain technology for administrative purposes, like keeping track of learning achievements or the surveillance of medical devices. This article gives a brief introduction in the basic technology and terminology of blockchain technology and concentrates on the potential applications of blockchain in medical imaging.

scholarly journals Emergence of blockchain-technology application in peer-to-peer electrical-energy trading: a review

Clean Energy ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 104-123
Author(s):  
Manish Kumar Thukral
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Research Work ◽  
Energy Sector ◽  
Peer To Peer ◽  
Renewable Energy Resources ◽  
Energy Trading ◽  
Technology Application ◽  
Blockchain Technology ◽  
The Common

Abstract Renewable-energy resources require overwhelming adoption by the common masses for safeguarding the environment from pollution. In this context, the prosumer is an important emerging concept. A prosumer in simple terms is the one who consumes as well as produces electricity and sells it either to the grid or to a neighbour. In the present scenario, peer-to-peer (P2P) energy trading is gaining momentum as a new vista of research that is viewed as a possible way for prosumers to sell energy to neighbours. Enabling P2P energy trading is the only method of making renewable-energy sources popular among the common masses. For making P2P energy trading successful, blockchain technology is sparking considerable interest among researchers. Combined with smart contracts, a blockchain provides secure tamper-proof records of transactions that are recorded in distributed ledgers that are immutable. This paper explores, using a thorough review of recently published research work, how the existing power sector is reshaping in the direction of P2P energy trading with the application of blockchain technology. Various challenges that are being faced by researchers in the implementation of blockchain technology in the energy sector are discussed. Further, this paper presents different start-ups that have emerged in the energy-sector domain that are using blockchain technology. To give insight into the application of blockchain technology in the energy sector, a case of the application of blockchain technology in P2P trading in electrical-vehicle charging is discussed. At the end, some possible areas of research in the application of blockchain technology in the energy sector are discussed.

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