Tyler and Cameron Winklevoss have seen their combined net worth more than double since January on the strength of the Bitcoin rally.

The Winklevoss twins are the founders of the Gemini exchange, but better known as the twins who sued Mark Zuckerberg claiming they were the actual creators of facebook, as seen in the movie "The Social Network".

Video Courtesy of Bloomberg

A newly released book by Ben Mezrich called "Bitcoin Billionares" focuses on the lives of the brothers Tyler and Cameron Winklevoss, owners of the Gemini exchange - their big bet on crypto-currency, the challenges, and its pay-off.