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Design and implementation of a high performance blockchain system

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Academic year: 2021

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Figure 1-1: Throughput and confirmation latency of Prism, Algorand, Bitcoin-NG, and the longest chain protocol on the same testbed
Figure 3-1: Depth of confirmation: longest chain vs. Prism. (a) The longest chain protocol requires a block Ho to be many blocks deep for reliable confirmation, so that an adversary mining in private cannot create a longer chain to reverse block Ho
Figure 4-1: Prism: Factorizing the blocks into three types of blocks: proposer blocks, transaction blocks and voter blocks.
Figure 5-1: Ledger formation has three parts: (1) confirming a leader sequence of proposer blocks; (2) creating a list of transactions; and (3) sanitizing the transaction list for conflicts
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