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Encyclopedia of Wireless Networks pp 1–4Cite as

Blockchain

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Synonyms

Blockchain; Blockchain-based currencies; Proofs of stake; Proofs of work

Definition

A blockchain is a linear collection of data elements called block, where all blocks are linked to form a chain and secured using cryptography, and newly generated blocks are continuously chained to the blockchain in an untrusted environment. To date, there is still lack of formal definitions on the blockchain that can be accepted by both the academia and industry.

Historical Background

The Blockchain technique is derived from the Bitcoin which is first proposed by Nakamoto in 2008. The primary objective of Bitcoin is to propose a secure payment system without a trusted party such that online payments can be sent directly from one user to others without going through a financial institution. This is achieved by a distributed ledger which accounts for the ownership of coins. The key challenge is to resist double spending attacks, where an adversary could issue two transactions in parallel so as...

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Author information

Authors and Affiliations

  1. University of Electronic Science and Technology of China, Chengdu, China

    Yuan Zhang

Authors
  1. Yuan Zhang
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Corresponding author

Correspondence to Yuan Zhang .

Editor information

Editors and Affiliations

  1. Department of Electrical and Computer Engineering, University of Waterloo , Waterloo, ON, Canada

    Xuemin (Sherman) Shen

  2. Faculty of Business and Information Technology, University of Ontario Institute of Technology, Oshawa, ON, Canada

    Xiaodong Lin

  3. Dpt.of Electrical & Computer Engineering, University of Nebraska–Lincoln, Omaha, NE, USA

    Kuan Zhang

Section Editor information

  1. Shanghai Jiaotong University, China, Shanghai, China

    Haojin Zhu

  2. Nanjing University of Information Science & Technology, China, Nanjing, China

    Jian Shen

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Zhang, Y. (2019). Blockchain. In: Shen, X., Lin, X., Zhang, K. (eds) Encyclopedia of Wireless Networks. Springer, Cham. https://doi.org/10.1007/978-3-319-32903-1_171-1

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  • DOI: https://doi.org/10.1007/978-3-319-32903-1_171-1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-32903-1

  • Online ISBN: 978-3-319-32903-1

  • eBook Packages: Springer Reference Computer SciencesReference Module Computer Science and Engineering

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