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Bitcoin has traded below $10,000 for the first time since early December.
The value of one bitcoin fell to $9,958 (Â£7,222) before making a slight recovery, according to the price index run by the news site Coindesk.
That represents a drop of nearly 50% since it peaked close to $19,800 five weeks ago.
Other crypto-currencies including Ethereum, Ripple, Litecoin and Bitcoin Cash have
This post was originally posted on BBC News. Read the rest of the story at http://www.bbc.co.uk/news/technology-42717639.