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1e+12 1e+10 1e+08 1e+06 10000 100 1 0.01 0.0001 Jan Jul 2009 2009 Jan Jul 2010 2010 Jan Jul 2011 2011 Jan Jul 2012 2012 Jan Jul 2013 2013 Jan Jul 2014 2014 Network Power Usage [5] Adam Back et al. Hashcash-a de- nial of service counter-measure. ftp: //sunsite.icm.edu.pl/site/replay.old/ programs/hashcash/hashcash.pdf, 2002. [6] Stephen Gornick and Adrian. Bitcoin difficulty adjustments. https://docs. google.com/spreadsheet/ccc?key= 0AiFMBvXvL2dtdEZkR2J4eU5rS3B4ei1iUmJxSWNlQ0E# gid=0, 2014. [Online; accessed 27-March- 2014]. [7] Michael Bedford Taylor. Bitcoin and the age of bespoke silicon. In Proceedings of the 2013 International Conference on Compilers, Ar- chitectures and Synthesis for Embedded Sys- tems, page 16. IEEE Press, 2013. [8] Amazon. Intel Core i7-950 3.06 GHz 8 MB cache socket LGA1366 pro- cessor. http://www.amazon.com/ Intel-i7-950-Socket-LGA1366-Processor/ dp/B002A6G3V2, 2014. [Online; accessed 19- March-2014]. [9] bitcoin.it. Mining hardware comparison. https://en.bitcoin.it/wiki/Mining_ hardware_comparison, 2014. [Online; accessed 19-March-2014]. [10] Amazon. Intel Atom N450 pro- cessor. http://www.amazon.com/ CPU-Central-Processing-1-66GHz-FCBGA559/ dp/B00HKIFV5O/, 2014. [Online; accessed 19-March-2014]. [11] Amazon. Sony playstation 3. dp/B00AEX81SG/, 2014. [Online; accessed 19-March-2014]. Efficient Commidity Hardware (E=2) Efficient Specialist Hardware (E=2000) Fig. 5: Estimated Power Consumption of the Bitcoin Mining Network. In this paper we looked at the energy issues around Bitcoin mining and its profitability. We also estimated under reasonable, reasonable as- sumptions, that currently the entire Bitcoin min- ing network is on par with Ireland for electricity consumption. Acknowledgements This research was supported by HEA PRTLI Cycle 5 TGI. References [1] Satoshi Nakamoto. Bitcoin: A Peer- to-Peer Electronic Cash System. http://fastbull.dl.sourceforge.net/ project/bitcoin/Design\%20Paper/ bitcoin.pdf/bitcoin.pdf. [2] Elli Androulaki, GhassanO. Karame, Marc Roeschlin, Tobias Scherer, and Srdjan Cap- kun. Evaluating user privacy in bitcoin. In Ahmad-Reza Sadeghi, editor, Financial Cryp- tography and Data Security, volume 7859 of Lecture Notes in Computer Science, pages 34– 51. Springer Berlin Heidelberg, 2013. [3] Sarah Meiklejohn, Marjori Pomarole, Grant Jordan, Kirill Levchenko, Damon McCoy, Ge- offrey M. Voelker, and Stefan Savage. A fistful of bitcoins: Characterizing payments among men with no names. In Proceedings of the 2013 Conference on Internet Measure- ment Conference, IMC ’13, pages 127–140, New York, NY, USA, 2013. ACM. [4] Ghassan O. Karame, Elli Androulaki, and Srdjan Capkun. Double-spending fast pay- ments in bitcoin. In Proceedings of the 2012 ACM Conference on Computer and Commu- nications Security, CCS ’12, pages 906–917, New York, NY, USA, 2012. ACM. http://www.amazon.com/ Playstation-3-250GB-System-Slim-Redesign/ [12] Amazon. HD4850. Sapphire Radeon http://www.amazon.com/ Sapphire-Radeon-HD4850-PCI-Express-100245HDMI/ dp/B001XW4BKO, 2014. [Online; accessed 19- March-2014]. [13] Amazon. 5770. ATI Radeon HD http://www.amazon.com/ ATI-Radeon-DisplayPort-Dual-DVI-7120184001G/ dp/B005EDG750, 2014. [Online; accessed 19- March-2014]. [14] Amazon. Nexys2 500K Xilinx Spartan-3E FPGA development kit. http://www.amazon.com/ Nexys2-500K-Xilinx-Spartan-3E-Development/ dp/B001D9EN6E/, 2014. [Online; accessed 19-March-2014]. Power (W)PDF Image | Bitcoin Mining and its Energy Footprint
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