no have bounty from dev, stelliteCoin

No, sorry. We are a very small team with a very tight budget (due to us having no ICO). In the future, when the roadmap is closer to completion and we are free to do more marketing we will be sure to do several bounties.
Is it coin build on its own block chain?
Yes. It is based on the same technology as monero, bytecoin, and electroneum called CryptoNote, using the CryptoNight algorithm. You can mine stellite with your CPU and/or GPU.
You should have a Stellite link in your signature, not one for other tokens/coins