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What is Quorum

Chapter 6
Blockchain Technology for Global Social Change
The Quorum Blockchain is an enterprise Blockchain established by JP Morgan Chase bank in collaboration with the Ethereum Enterprise Alliance.
Published in Chapter:
Can Blockchain Really Help the Poor?: If So, Who Is Trying To?
Copyright: © 2019 |Pages: 40
DOI: 10.4018/978-1-5225-9578-6.ch006
Abstract
It is the firm belief of the authors that Blockchain and other frontier technologies will be an important tool for social impact globally. It is now possible, with technology, to envision a world where everyone has an identity, where everyone can be connected to the economic system, where farmers get fair deals for their crops, and land registration is incorruptible. Advances in solar, battery, and digital commerce make it possible to imagine even the smallest village in Africa being able to produce and trade small amounts of energy. The Sustainable Development Goals (SDGs) were a visionary leap to a future state where the world can be a better place for humankind. However, they will not be achieved without harnessing the potential of technology. Nor will they be reached alone. In this chapter, the authors profile innovative case studies in Blockchain, which, if brought to scale, may realise the technology's potential. It is through this learning and experimentation that we will learn how to deploy this technology globally for social impact.
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Chapter 23
A Distributed Framework and Consensus Middle-Ware for Human Swarm Interaction
A threshold used for mitigating the vulnerability of the swarm to agent failures. It determines when a group can be said to have reached consensus.
Published in Chapter: A Distributed Framework and Consensus Middle-Ware for Human Swarm Interaction; From: Handbook of Research on Design, Control, and Modeling of Swarm Robotics
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Chapter 107
Consistency Is Not Enough in Byzantine Fault Tolerance
A quorum of a set consists of the minimum number of components to perform a predefined function. In Byzantine fault tolerance replication, 2f+1 is needed to form a quorum in a set of 3f+1 replicas.
Published in Chapter: Consistency Is Not Enough in Byzantine Fault Tolerance; From: Encyclopedia of Information Science and Technology, Fourth Edition
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Chapter 8
Blockchains for Use in Construction and Engineering Projects
Is the minimum number of members of the cluster that need to affirm that a transaction is acceptable to write to the ledger. For networks with few members, the central authority may make up the majority vote for acceptance.
Published in Chapter: Blockchains for Use in Construction and Engineering Projects; From: Handbook of Research on Driving Transformational Change in the Digital Built Environment
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Chapter 105
Policy Driven Negotiation to Improve the QoS in Data Grid
In general allow writes to be recorded only at a subset (a write quorum) of the up nodes, so long as reads are made to query a subset (a read quorum) that is guaranteed to overlap the write quorum.
Published in Chapter: Policy Driven Negotiation to Improve the QoS in Data Grid; From: Encyclopedia of E-Business Development and Management in the Global Economy
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Chapter 276
Enhancing Service Integrity of Byzantine Fault Tolerant Applications
A quorum of a set consists of the minimum number of components to perform a predefined function. In Byzantine fault tolerance replication, 2f+1 is needed to form a quorum in a set of 3f+1 replicas.
Published in Chapter: Enhancing Service Integrity of Byzantine Fault Tolerant Applications; From: Encyclopedia of Information Science and Technology, Third Edition
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Chapter 7
Consistency Is Not Enough in Byzantine Fault Tolerance
A quorum of a set consists of the minimum number of components to perform a predefined function. In Byzantine fault tolerance replication, 2f+1 is needed to form a quorum in a set of 3f+1 replicas.
Published in Chapter: Consistency Is Not Enough in Byzantine Fault Tolerance; From: Advanced Methodologies and Technologies in Engineering and Environmental Science
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