"Cosmonaut Sergei Molotov, on the International Space Station, has Transferred ZED his holdings from earth to a USB wallet in space, Zedcoin Thereby making the first digital currency to break the bonds of earth"
more
http://www.zedcoins.com/#!Zedcoin-in-space/cezs/6427C68C-B5BB-4757-B852-84929860DEA7
And it seems this may be WHY the price is rising like a shooting star:
"People who have registered on our website will be able to earn Zed Coins for completing in game achievements or tasks. Basically this means that we pay you for playing on our server. Zed Coin is a cryptocurrency like bitcoin or litecoin,
you can use Zed Coin to purchase items from our shop. We will also allow people to pay for items with coins from a personal wallet. To learn more about how Zed Coin is going to be implemented go to the Zed Coin page on our website."
more:
http://www.minecraftforum.net/topic/2377581-%E2%98%A2minerust%E2%98%A2official-server-%E2%98%85beta%E2%98%85-cryptocurrency%E2%98%85play4pay%E2%98%85multiple-servers/Dont sell them coins too cheaply guys