Introduction to Consensus (Part I)
Part I of an introduction to the basics of consensus, the protocol to coordinate and maintain a decentralized blockchain. Andrew Lewis-Pye (London School of Economics) discusses how participants can agree on the correct condition of the blockchain and who owns what at any time. He begins with an overview of Byzantine agreement problem; addresses communications channels, faulty processors, and dealing with an adversary; and discusses Byzantine broadcast when there are bounded message delays.
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