Suggested CPC Network without footprint?

I have built my own private blog network, and would like to make it looks more real, so I decide to place some Ads on my site.

But one big problem is that most AD Networks provide unique tracking code for their publishers, for example: AdSesne

The same tracking code on those sites it means those sites are owned by the same owner, I cannot leave any footprint on my private blog network.

Does anyone can suggest some AD Networks provide different tracking code for each website?

Thanks.

(how to modify post title? Need help to correct CPC to PPC )

Have you ever worked with CPC ad network? If so, how was the performance and which one if you can answer?

Can't understand the motive of the post.
Please explain it