The first child chain of Ardor will be the Ignis child chain which will use IGNIS tokens for its operation.
Just buying some ICO coin from NXT blockchain. IGNIS. Last time ad missed the 2nd round ICO which is more cheaper than this at 0.40 and 0.55NXTpcs.
The ICO started
In order to coin u need to have acc on NXT. and the buying process also Using NXT on NXT wallet. u can get through the wallet a the Jelurida website. as below