BLOCKCHAIN


Blockchain
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Blockchain technology and distributed ledgers are attracting massive attention and trigger multiple projects in different industries. However, the financial industry is seen as a primary user of the blockchain concept. This is not only due to the fact that the most well-known

Blockchain
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Page 1. BLOCKCHAIN The foundation behind Bitcoin Sourav Sen Gupta Indian Statistical Institute, Kolkata Page 2. CRYPTOGRAPHY Backbone of Blockchain Technology Page 3. Component 1 : Cryptographic Hash Functions Page 4. Map variable-length input to constant-length output. HASH

Architecture of the hyperledger blockchain fabric
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Discussion. Consensus protocols for blockchain are currently being debated very actively, in research [ 10] but also by fintech startup companies (eg, tendermint. com, kadena. io). The fabrics design uses a modular notion of consensus, which is aligned with the well

Blockchain technology: Beyond bitcoin
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A blockchain is essentially a distributed database of records, or public ledger of all transactions or digital events that have been executed and shared among participating parties. Each transaction in the public ledger is verified by consensus of a majority of the

Blockchain basics
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This introduction answers the most important question that every author has to answer: Why should anyone read this book Or more specifically: Why should anyone read another book about the blockchain Continue reading and you will learn why this book was written, what

How blockchain is changing finance
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A Tapscott, D Tapscott Harvard Business Review capital.report Our global financial system moves trillions of dollars a day and serves billions of people. But the system is rife with problems, adding cost through fees and delays, creating friction through redundant and onerous paperwork, and opening up opportunities for fraud and

A survey of blockchain security issues and challenges.
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Blockchain technologies is one of the most popular issue in recent years, it has already changed peoples lifestyle in some area due to its great influence on many business or industry, and what it can do will still continue cause impact in many places. Although theThe blockchain is a distributed ledger technology in the form of a distributed transactional database, secured by cryptography, and governed by a consensus mechanism. A blockchain is essentially a record of digital events. However, it is not just a record,since it

Business innovation through blockchain
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In this book, we aim to discuss and present the main challenges and trends related to blockchain for digital business innovation to a composite audience of practitioners and scholars. Blockchain became a hype topic, thanks to bitcoin diffusion at a global level

Blockchain ready manufacturing supply chain using distributed ledger
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The blockchain technology as a foundation for distributed ledgers offers an innovative platform for a new decentralized and transparent transaction mechanism in industries and businesses. The inherited characteristics of this technology enhance trust through

Global blockchain benchmarking study
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Page 1. Electronic copy available at: https://ssrn.com/abstract=3040224 GLOBAL BLOCKCHAIN BENCHMARKING STUDY Dr Garrick Hileman Michel Rauchs 2017 This ability of blockchain network participants to independently verify the integrity of the shared database without having

Enabling blockchain innovations with pegged sidechains
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Since the introduction of Bitcoin [Nak09] in 200 and the multiple computer science and electronic cash innovations it brought, there has been great interest in the potential of decentralised cryptocurrencies. At the same time, implementation changes to the

Blockchain technologies: The foreseeable impact on society and industry
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The paper provides basic concepts about Blockchain and offers our perspective on the challenges, the future opportunities and the foreseeable impact of Blockchain and distributed ledger technologies in industry and society. The origins of this technologies are tracked, from

BigchainDB: a scalable blockchain database
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The introduction of Bitcoin has triggered a new wave of decentralization in computing. Bitcoin illustrated a novel set of benefits: decentralized control, where no one owns or controls the network; immutability, where written data is tamper-resistant ( forever ); and the

A Survey about Consensus Algorithms Used in Blockchain .
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Thanks to its potential in many applications, Blockchain has recently been nominated as one of the technologies exciting intense attention. Blockchain has solved the problem of changing the original low-trust centralized ledger held by a single third-party, to a high-trust

Will blockchain technology revolutionize excipient supply chain management
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Blockchain technology provides a major advance for excipient supply chains, assisting in the delivery of unadulterated, source, process and transit verifiable excipients (or APIs and drug products), but does not alleviate the necessity for quality audits. The adoption of

Blockchain and tourism: Three research propositions
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The tourism industry has been changing rapidly since the Internet has enabled customers to search for and book their travel products online. As a result, many companies such as Airbnb and Uber are moving away from traditional business models and toward consumer-to Blockchains are an emerging digital technology that combine cryptography, data management, networking, and incentive mechanisms to support the checking, execution, and recording of transactions between parties. A blockchain ledger is a list (chain) of

Blockchain technology
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Michaels practice focuses on mergers and acquisitions, securities offerings, corporate governance, and various private equity and venture capital transactions. He represents acquirers, sellers, boards of directors and board committees, as well as issuers and

How utilities are using blockchain to modernize the grid
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In New York state, neighbors are testing their ability to sell solar energy to one another using blockchain technology. In Austria, the countrys largest utility conglomerate, Wien Energie, is taking part in a blockchain trial focused on energy trading with two other utilities. Meanwhile

Blockchain beyond the hype: What is the strategic business value
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Our research seeks to answer this question by evaluating not only the strategic importance of blockchain to major industries but also who can capture what type of value through what type of approach. In-depth, industry-by-industry analysis combined with expert and company

Can Blockchain revolutionize international trade
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Blockchains first implementation as the technology underpinning Bitcoin has led many to associate Blockchain with Bitcoin. However, the potential use of Blockchain goes well beyond the world of cryptocurrencies. For some, it is a technology that will change our lives

Blockchain Transaction Processing.
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A blockchain is a linked list of immutable tamper-proof blocks, which is stored at each participating node. Each block records a set of transactions and the associated metadata. Blockchain transactions act on the identical ledger data stored at each node. Blockchain

A blockchainbased approach to health information exchange networks
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Sharing healthcare data between institutions is challenging. Heterogeneous data structures preclude compatibility, while disparate use of healthcare terminology limits data comprehension. Even if structure and semantics could be agreed upon, both security and

Anticipating the economic benefits of blockchain
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Blockchain (distributed ledger technology) is a network software protocol that enables the secure transfer of money, assets, and information via the Internet, without the need for a third- party intermediary such as a bank (Swan). Transactions are validated, executed, and

A conceptual secure blockchainbased electronic voting system
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Blockchain is offering new opportunities to develop new types of digital services. While research on the topic is still emerging, it has mostly focused on the technical and legal issues instead of taking advantage of this novel concept and creating advanced digital

Blockchain for identity management
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We are living in a world that is rapidly undergoing a fundamental change, it is becoming driven by data. This transformation is about all societal systems: traffic, health, government, logistics, and defense; being more quantified and efficient, but also more transparent and

In blockchain we trust
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The dot-com bubble of the 1990s is popularly viewed as a period of crazy excess that ended with hundreds of billions of dollars of wealth being destroyed. Whats less often discussed is how all the cheap capital of the boom years helped fund the infrastructure upon which the

Further applications of the blockchain
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In this research we investigate into the blockchain technology; its current use and explore other possible implementations of this protocol. In the first part a thorough explanation of the technology and the problems it is trying to tackle is attempted. At the same time a

Caterpillar: A BlockchainBased Business Process Management System.
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This demonstration introduces Caterpillar, an open-source Business Process Management System (BPMS) that runs on top of the Ethereum blockchain . Like any BPMS, Caterpillar supports the creation of instances of a process model (captured in the Business Process

Food traceability on blockchain : Walmarts pork and mango pilots with IBM
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In response to food contamination scandals worldwide, retail giant Walmart is tackling food safety in the supply chain using blockchain technology. In 201 it established the Walmart Food Safety Collaboration Center in Beijing and plans to invest $25 million over five years to

Blockchain and financial market innovation
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Blockchain technology is likely to be a key source of future financial market innovation. It allows for the creation of immutable records of transactions accessible by all participants in a network. A blockchain database is made up of a number of blocks chained together

What blockchain means for the sharing economy
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Look at the modus operandi of todays internet giants such as Google, Facebook, Twitter, Uber, or Airbnb and youll notice they have one thing in common: They rely on the contributions of users as a means to generate value within their own platforms. Over the past

A Case Study for Blockchain in Healthcare: MedRec prototype for electronic health records and medical research data
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A long-standing focus on compliance has traditionally constrained development of fundamental design changes for Electronic Health Records (EHRs). We now face a critical need for such innovation, as personalization and data science prompt patients to engage in

Smarter city: smart energy grid based on blockchain technology
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The improvement of the Quality of Life (QoL) and the enhancement of the Quality of Services (QoS) represent the main goal of every city evolutionary process. It is possible making cities smarter promoting innovative solutions by use of Information and Communication Embedded devices are going to be used extremely in Internet of Things (IoT) environments. The small and tiny IoT devices will operate and communicate each other without involvement of users, while their operations must be correct and protected against various

Blockchain infrastructure (identity, data security)
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We are living in a world that is rapidly undergoing a fundamental change: it is becoming driven by data. This is not just the Internet of Things (IoT) or ubiquitous mobile computing, this transformation is about all societal systems traffic, health, government, logistics

Blockchain for health data and its potential use in health it and health care related research
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It is a very exciting time for health care and information technology (IT). Due to improvements in genetic research and the advancement of precision medicine, health care is witnessing an innovative approach to disease prevention and treatment that incorporates an individual

A survey on consensus mechanisms and mining management in blockchain networks
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The past decade has witnessed the rapid evolution in blockchain technologies, which has attracted tremendous interests from both the research communities and the industry. The blockchain network was originated in the Internet finical sector as a decentralized

The blockchain phenomenon
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In November 200 a mysterious white paper appeared on the Internet in all quietness. Written under the pseudonym Satoshi Nakamoto, the paper described a new method for creating a fully distributed digital currency system by cryptographically chaining blocks of