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Virtual currency 'Riecoin' tackles prime number enigma

Bitcoin's biggest exchange may have collapsed but a new virtual currency has an extra draw: testing a mathematical hypothesis worth $1 million

News

Bitcoin exchange crash may have cost users $350m

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SolarCoin cryptocurrency pays you to go green

Technology

SolarCoin cryptocurrency pays you to go green

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Bitcoin: Problems already cloud the currency's future

Technology

Bitcoin: Problems already cloud the currency's future

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Bitcoin: Three scenarios forecast the future of money

Technology

Bitcoin: Three scenarios forecast the future of money

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Bitcoin: How its core technology will change the world

Technology

Bitcoin: How its core technology will change the world

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Bitcoin: Can you live on virtual money for a day?

Technology

Bitcoin: Can you live on virtual money for a day?

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Technology

Bitcoin: The future of money is at stake

Leader

Technology

Bitcoin: A dummy's guide to buying and making your own

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Technology

Cleaned-up Bitcoins could change commerce forever

Bitcoin may be notorious as the currency of black marketeers, but the technology behind it may power the next online revolution

Opinion

Technology

Bitcoin moves beyond mere money

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Bitcoin value smashes records in China and US

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Technology

Bitcoin flaw could threaten booming virtual currency

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US government shutdown: Doing away with the dollar

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