| Schedule of fair value measurement liabilities |
| | | | | | Fair Value Measurements at Reporting Date Using | | | | | December 31, 2016 | | | Quoted Prices in Active Markets for Identical Assets | | | Significant Other Observable Inputs | | | Significant Unobservable Inputs | | | | | | | | (Level 1) | | | (Level 2) | | | (Level 3) | | | Derivative liability – stock warrants | | $ | 1,250,000 | | | | - | | | | - | | | $ | 1,250,000 | | | Derivative liability – Series C Preferred Stock | | | 2,093,623 | | | | - | | | | - | | | | 2,093,623 | | | | | $ | 3,343,623 | | | | - | | | | - | | | $ | 3,343,623 | |
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