The challenge for bitcoin: Building value after the hype

Two years ago, it seemed nothing could go wrong for bitcoin. The value of the digital currency was surging past $1,000, making sudden fortunes for cryptocurrency die-hards and drawing huge investments for companies working with the new "digital gold."Blair Hanley Frank Xapo CEO Wences Casares talks about bitcoin at TechCrunch Disrupt in San Francisco on Sept. 21, 2015.To read this article in full or to leave a comment, please click here