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Archived from the original (PDF) on 28 December 2013. Paying for small retail purchases is impractical according to Kim Grauer, an economist"d by Bloomberg. 3 The issuance of bitcoins is decentralized bitcoins are issued as a reward for the creation bitcoin euro tai dollari of a new block. "How to send bitcoin to a hardware wallet". Archived from the original on 2 November 2017.