Blockchain technology

The term “blockchain technology” typically refers to the transparent, trustless, publicly accessible ledger that allows us to securely transfer the ownership of units of value using public key encryption and proof of work methods

A blockchain is a decentralized, distributed, and oftentimes public, digital ledger that is used to record transactions across many computers so that any involved record cannot be altered retroactively, without the alteration of all subsequent blocks.

Blockchain beyond bitcoin
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Blockchain technology has the potential to revolutionize applications and redefine the digital economy. the second Internet, personal computers, and local area networks. The third platform delivers computing anywhere, immediately, and allows organizations to deploy and

The truth about blockchain
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JANUARY FEBRUARY 2017 HARVARD BUSINESS REVIEW 3 communities, and individuals. They guide managerial and social action. And yet these critical tools and the bureaucracies formed to manage them have not kept up with the economys digital

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

Architecture of the hyperledger blockchain fabric
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Discussion. Consensus protocols for blockchain are currently being debated very actively, in research [6, 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

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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

Blockchain challenges and opportunities: A survey
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Blockchain has numerous benefits such as decentralisation, persistency, anonymity and auditability. There is a wide spectrum of blockchain applications ranging from cryptocurrency, financial services, risk management, internet of things (IoT) to public and

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

Enabling blockchain innovations with pegged sidechains
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Since the introduction of Bitcoin [Nak09] in 2009, 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

Understanding blockchain consensus models
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Blockchain technology enables participants to read from and update to a common shared ledger (or blockchain ) whose state is collectively maintained by the network in a decentralized fashion. The blockchain is updated via the consensus protocol that ensures a

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 the

Blockchain platform for industrial internet of things
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Abstract Internet of Things (IoT) are being adopted for industrial and manufacturing applications such as manufacturing automation, remote machine diagnostics, prognostic health management of industrial machines and supply chain management. Cloud-Based

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

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

How blockchain is changing finance
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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

Global blockchain benchmarking study
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Page 1. GLOBAL BLOCKCHAIN BENCHMARKING STUDY Dr Garrick Hileman Michel Rauchs 2017 With the support of: VOTE Page 2. Cambridge Centre for Alternative Finance This ability of blockchain network participants to independently verify the integrity of the shared database

Speed-Security Tradeoffs in Blockchain Protocols.
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In this work, motivated by recent work in the formal analysis of the Bitcoin backbone protocol, we investigate the tradeoff between provable security and transaction processing speed viewing the latter as a function of the block generation rate. We introduce a new

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

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 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

Block-VN: A distributed blockchain based vehicular network architecture in smart City.
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In recent decades, the ad hoc network for vehicles has been a core network technology to provide comfort and security to drivers in vehicle environments. However, emerging applications and services require major changes in underlying network models and blockchain can be described as data you can only add to, not take away from or change. Hence the term chain because you’re making a chain of data. Not being able to change the previous blocks is what makes it so secure. In addition, blockchains are consensus-driven, so no one entity can take control of the data. With blockchain, you don’t need a trusted third-party to oversee or validate transactions.

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Blockchain technology IEEE PAPER