Bitcoin, an SWOT analysis Semantic Scholar

Today in History 02/08

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Estimation of Miner Hash Rates and Consensus on Blockchains

Date: 2017-07-01
Author(s): A. Pinar Ozisik, George Bissias, Brian Levine

Link to Paper

We make several contributions that quantify the real-time hash rate and therefore the consensus of a blockchain. We show that by using only the hash value of blocks, we can estimate and measure the hash rate of all miners or individual miners, with quanti able accuracy. We apply our techniques to the Ethereum and Bitcoin blockchains; our solution applies to any proof-of-work-based blockchain that relies on a numeric target for the validation of blocks. We also show that if miners regularly broadcast status reports of their partial proof-of- work, the hash rate estimates are signi cantly more accurate at a cost of slightly higher bandwidth. Whether using only the blockchain, or the additional information in status reports, merchants can use our techniques to quantify in real-time the threat of double-spend attacks.

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Morici sued HashFast Technologies, HashFast LLC, CEO Eduardo deCastro and chief technology officer Simon Barber, alleging fraud and breach of contract. “HashFast was capitalized with a total of $641,643, a number that was totally inadequate to undertake production and development of bitcoin mining equipment (which would cost several millions of dollars),” according to Morici’s 22-page ... Bitter to Better — How to Make Bitcoin a Better Currency Simon Barber 1, Xavier Boyen , Elaine Shi 2, and Ersin Uzun 1 Palo Alto Research Center 2 University of California, Berkeley Abstract. Bitcoin is a distributed digital currency which has attracted a substan-tial number of users. We perform an in-depth investigation to understand what made Bitcoin so successful, while decades of ... According to the paper “Bitter to Better — How to Make Bitcoin a Better Currency” by Simon Barber , Xavier Boyen, Elaine Shi, and Ersin Uzun, it can take up to 6 months for a purchased GPU ... Perhaps the best way to think of stolen bitcoin is as stolen art. Sure, we can hang it anywhere. Don’t expect to sell it at Christie’s. A resource that loses its value as soon as it is stolen ... Bitter to Better — How to Make Bitcoin a Better Currency Simon Barber 1, Xavier Boyen , Elaine Shi 2?, and Ersin Uzun 1 Palo Alto Research Center 2 University of California, Berkeley Abstract. Bitcoin is a distributed digital currency which has attracted a substan- tial number of users. We perform an in-depth investigation to understand what made Bitcoin so successful, while decades of ...

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