can a blog has multiple adsese?

I basically want adsense revene thing where each author will have different earning'
is it possible now days?

I dont think so, better create a system that separates them.

they how to pay author? based on views?

Yes, you can do this. There used to be a few sites that did this but I can't remember names.

A quick Google search finds lots of articles about it.

https://support.google.com/adsense/answer/115979?hl=en"Publishers are allowed to place ad code from more than one AdSense account on a page that complies with our program policies. Alternatively, publishers may choose to rotate ad codes from more than one publisher across a website."