Unobtanium. For old timers this is a part of their usual portfolio. Since this cryptocurrency has been with Bitcoin almost since the beginning. There are only 250,000 kilograms available. Very rare and similar to 42 Coin. The website almost didn't change but I must say that the design is one of my all time favorites. There are speculations that Unobtanium is the only contender to the throne of Bitcoin. And I agree with their opinions and fighting spirits.
