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A Survey on PoW-Based Consensus

We provide a historical overview of proof-of-work techniques and the fields in which it plunges its roots. We are interested in PoW-techniques applied to block-chain technology and therefore we survey the state-of-the-art protocols employing these methods for consensus algorithms, emphasizing the differences between the efficient hash-cash systems and the promising bread pudding protocols. Afterwards, the consensus mechanisms are discussed and some interesting known attacks to these algorithms are collected and classified according to their underlying ideas
Year of publication:
2020
Authors: Meneghetti, Alessio
Other Persons: Sala, Massimiliano (contributor) ; Taufer, Daniele (contributor)
Publisher: [2020]: [S.l.] : SSRN
freely available
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