ARDR coin is a token generated by Ardor, which is also the token of future coin 2.0 system. Ardor is a service system that runs all sub-chains and all transactions. It adopts the 100% proof of stake (POS) mechanism. Tokens cannot be generated through mining, and new blocks are generated through transparent forging, without the original sin of not saving energy of bitcoin model blockchain system. As for Nxt 2.0 (Future Coin 2.0 system), it is a BaaS platform, and people can directly enjoy THE BLOCK chain technology of Nxt by creating sub-chains on the main chain Nxt.