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. 2019 Jul 24;6(7):180643. doi: 10.1098/rsos.180643

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 9. — Growth of Bitcoin Blockchain network user base and increase in mining power. Superimposed to the Bitcoin price in log-scale (left axis), the total hash rate and the number of registered wallets are shown (right axis). The largest rate of increase of the total hash rate can be observed over the course of the second long-term bubble in 2013, a fact signalling an increasing level of miners’ technique sophistication. A second, more subtle acceleration of the hash rate can be seen around the nucleation of the third long bubble. (Data Source: [47].)