It’s been described as a bubble about to burst, a way of laundering money and also as the future of finance.

It’s been described as a bubble about to burst, a way of laundering money and also as the future of finance.

At the World Economic Forum’s meeting in Switzerland this week, the spotlight fell on digital currencies like Bitcoin, and the technology on which they are built.

Al Jazeera’s Jonah Hull reports from Davos.

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