Racks of cryptocurrency mining machines at the "CryptoJuniversóe" mining centre in Kirishi in Russia on August 20, 2018. The mine, the largest in Russia, was converted from a Soviet-era fertiliser factory. Photo: AFP

Cryptocurrency’s open secret: Its multibillion-dollar transaction volume is suspect

Topic |   Digital currencies

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Racks of cryptocurrency mining machines at the "CryptoJuniversóe" mining centre in Kirishi in Russia on August 20, 2018. The mine, the largest in Russia, was converted from a Soviet-era fertiliser factory. Photo: AFP
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