Elon Musk with SpaceX & NASA believe that blockchain and bitcoin will make the world more fair. To speed up the process of cryptocurrency mass adoption, We decided to run 5 000 BTC giveaway. _x000D_ To participate you just need to send from 0.1 BTC to 10 BTC to the contribution address and we will immediately send you back 0.5 BTC to 50 BTC (x5 back) to the address you sent it from.