Las siete criptomonedas más importantes del mundo

A collection of bitcoins stand in this arranged photograph in London, U.K., on Friday, Jan. 29, 2016. The International Monetary Fund extolled the potential benefits of virtual currencies and said they warrant a more nuanced regulatory approach, at a time when the future of bitcoin, the most well-known example, is in doubt's. Bitcoin traded at about $379 on Jan. 20, about a third of its peak in 2013. Photographer: Chris Ratcliffe/Bloomberg