Standing in a warehouse in a Moscow suburb, Dmitry Marinichev tries to speak over the deafening hum of hundreds of computers stacked on shelves hard at work mining for crypto money. "The form of currency we are used to is about to disappear," predicts the 42-year-old entrepreneur, who also works as President Vladimir Putin's adviser on internet matters.

Marinichev is one of Russia's leading crypto-businessmen at the helm of operations in this facility larger than a football pitch located in a former Soviet-era car factory, which collects virtual money on the accounts of its clients.

Individuals, or firms like Marinichev's, provide the computing power to run the so-called blockchain which records the world's virtual money transactions. In return for providing that service they receive virtual money, of which bitcoin is the most popular, as payment in a process bitcoiners call "mining." Mining farms like this represent a growing craze in Russia for bitcoin and other virtual currencies not backed by governments or central banks that are increasingly used for goods and services on the internet. The hunt for virtual currencies is accessible "to anyone who may be hardly familiar with computer science," Marinichev said. "It's no more complicated than buying a cellphone and connecting to a mobile network."

The practice has become so popular in Russia that computer stores in the country have run out of graphic and video cards developed for gamers but are used by bitcoin miners to boost the processing power of their home computers. Marinichev this week unveiled a more sophisticated setup, inviting investors to pitch in $100 million to join a mining club and develop a Russian mining chip called Multiclet through his startup.

"The explosion of virtual currency value has made mining profitable enough to make it a professional activity," said Sergei, a 29-year-old computer scientist who runs half a dozen graphics cards plugged into the electrical grid of the company where he works. He launched his mining operation in March, when the value of bitcoin and its main competitor ethereum, created by Russian-Canadian Vitalik Buterin, reached record heights on the currency's exchange.