I just wanted to state that I find it falsely to use the term "currency" over something that can be used by anyone in the world and it is definitely not determined or even acceptable by a nation.
Even if you take the meaning of currency from google it is a medium that can be exchanged for goods and services and you think that the term currency is a false claim 
. Cryptocurrency is included in the new sub section of virtual currencies and you do not need a nation to be called them a currency, it is called evolution with changing times 
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