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Bitcoin: What are crypto-currencies?
source link: https://www.bbc.com/news/av/technology-59299381
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Bitcoin: What are crypto-currencies?
Bitcoin: What are crypto-currencies?
Fans of crypto-currencies say they are the future of money and will stop people having to rely on big banks.
Others are worried about their accountability and environmental impact.
Here's how digital cash like Bitcoin could change our lives.
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