Bitcoin was trading as high as $774 on the New York-based itBit exchange, up almost 1% on the day and the highest since February 2014, having climbed almost 9% in the past month.
Bitcoin is a cash alternative that can be used for moving money across the globe quickly and anonymously, with no need for a central authority to process transactions. It has climbed around 80% so far this year, far exceeding its 35% rise in 2015.
Indian prime minister Narendra Modi announced a shock move on 8 November to ditch 500 and 1 000 rupee notes – worth a combined $256 billion – that he said were fuelling corruption, being forged and even paying for attacks by militants who target India.
The cryptocurrency's value has been highly volatile – after rocketing above $1 100 in 2013, it had fallen to around $150 by early 2015. But it has since stabilised, staying above $500 for the past six months.
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