Centareum is powered by two tokens: 
Centa (CENX)- Built on Ethereum ERC-20. This is an externally-tradable token bridging the Centareum token (Centareum) with Ethereum own native ETH token; and
Centa Dollar (CTD) - The main currency pegged at 1 USD and this will be launched with the service. CTD will not go on to the exchange or outside Centareum network.
You can get to know the entire details in our whitepaper: https://www.dropbox.com/s/si1ed1xkgqho5in/Centareum%20whitepaper%20V2.0.pdf?dl=0