Scigala said over the past two months, with Greece locked in talks with its creditors, the company had seen a 124 percent pick-up in inflows from Greek IP addresses—numerical labels that identify computers and other internet-enabled devices.

Bitcoin traded as high as $252.05 on the Bitstamp exchange on Tuesday, its strongest in over two months, before easing a little to $245.21, still up around 4 percent on the day. That marked its sixth straight session of gains—its best run since January 2014.

Some have suggested that a bitcoin-like digital currency, backed either by Greece's assets or future tax revenues, could be introduced as an parallel currency to the euro in Greece in order to avert an exit from Europe.