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This image was originally posted to Flickr by TechCrunch at https://flickr.com/photos/52522100@N07/22987802684. It was reviewed on 2017-09-08 21:00:17 by FlickreviewR, who found it to be licensed under the terms of the cc-by-2.0, which is compatible with the Commons. It is, however, not the same license as specified on upload, which was the cc-by-2.5, and it is unknown whether that license ever was valid.
LONDON, ENGLAND - DECEMBER 08: Founder of Ethereum Vitalik Buterin during TechCrunch Disrupt London 2015 - Day 2 at Copper Box Arena on December 8, 2015 in London, England. (Photo by John Phillips/Getty Images for TechCrunch) *** Local Caption *** Vitalik Buterin