Blockchain is the backbone of bitcoin and other digital currencies that have surged in value in recent months, raising fears of a price bubble
Bitcoin dropped as much as 12 per cent to $12,801, Ripple fell 13 per cent and ethereum slumped 5 per cent
Every member of the eight-person all-girl group represents a different virtual currency, including Ethereum and Ripple
Among the clutch of cryptocurrencies, bitcoin has a market share of 36.6% and a market cap of $250 bn
The proposed ban on cryptocurrency trading was announced after "enough discussion" with other government agencies
Buffett's comments come a day after JPMorgan & Chase Chief Executive Jamie Dimon said he regrets calling bitcoin a fraud
The rupee lost a whopping 34 paise in last two days
Ripple's price may also be falling amid concern over a feature that allows platforms using the token to freeze funds
Even at the country's highest regulated electricity tariff, miners can profit from bitcoin as long as it's worth more than $6,925
The move adds a new hurdle to the bid by Wall Street firms to capitalise on investor interest in cryptocurrencies
Crypto-currencies may provide a financial lifeline to North Korea which has been hit hard by sanctions: Report