Need tips on customizing matomo for responsible data

I’m trying to calculate an underwriter CPM for an industry site with users who are notoriously sensitive to data tracking (blockchain industry).

It’s difficult to assess impressions for potential ad tags via normal means, so I’m wondering if there’s a solution with customizing matomo tools that would make the site owner and the users feel like every one is safe and on the same page.

Is there a way of interpreting user data that is truly transparent, truly decentralized, and truly anonymous?