In September 2019 the Central Bank of Venezuela, at the request of PDVSA, ran tests to determine if bitcoin and ether could be held in central bank's reserves. The request was motivated by oil company's goal to pay its suppliers. On 10 December 2017, the Chicago Board Options Exchange started trading bitcoin futures, followed by the Chicago Mercantile Exchange, which started trading bitcoin futures on 17 December 2017. In 2014,…