What is Blockchain

Blockchain explained. Shai Rubin, CTO of Citi Innovation Lab, explains in an easy and simple way the basics of bitcoin.

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bitcoin_nocashday-100By CashlessWay – Global Hub for ePayment Culture on 2014-06-28 09:38:52[wpr5_ebay kw=”bitcoin” num=”1″ ebcat=”” cid=”5338043562″ lang=”en-US” country=”0″ sort=”bestmatch”]