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Property and Equipment - Schedule of Property and Equipment, Net (Details) (10K) - USD ($)
Sep. 30, 2017
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Abstract]      
Equipment   $ 109,493
Computer   3,086
Leasehold improvements   242,091
Transaction verification servers   451,281
Total cost   805,951
Accumulated depreciation and amortization   (316,531)
Property and equipment, net $ 1,359 $ 489,420