| Schedule of Stock Warrants Activity | The
following is a summary of the Company’s warrant activity:   
    |  |  | Warrants |  |  | Weighted
    average exercise price |  |  | Weighted
    average remaining contractual term in years |  |  | Aggregate
    intrinsic value |  |  
    | Outstanding January
    1, 2018 |  |  | 127,434,122 |  |  | $ | 0.24 |  |  |  | 3.15 |  |  | $ | 3,957,689 |  |  
    | Exercisable January 1, 2018 |  |  | 127,434,122 |  |  | $ | 0.24 |  |  |  | 3.15 |  |  | $ | 3,957,689 |  |  
    | Canceled |  |  | - |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Granted |  |  | 315,010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Exercised |  |  | (9,600,286 | ) |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Forfeited |  |  | (101,984 | ) |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Outstanding December 31, 2018 |  |  | 118,046,862 |  |  | $ | 0.20 |  |  |  | 2.32 |  |  | $ | 7,848,637 |  |  
    | Exercisable December 31, 2018 |  |  | 118,046,862 |  |  | $ | 0.20 |  |  |  | 2.32 |  |  | $ | 7,848,637 |  |  
    | Expired |  |  | (18,405,496 | ) |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Granted |  |  | 1,316,665 |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Exercised |  |  | - |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Forfeited |  |  | - |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Outstanding June 30, 2019 |  |  | 100,958,031 |  |  | $ | 0.13 |  |  |  | 2.27 |  |  | $ | 1,276,243 |  |  
    | Exercisable June 30, 2019 |  |  | 100,958,031 |  |  | $ | 0.13 |  |  |  | 2.27 |  |  | $ | 1,276,243 |  |  |