Problem: Currently, users (or attackers) can easily manipulate the location provided to an app on a phone.

Solution: Use raw measurements from positioning sattellites to check if the location reported by a user actually lines up with the measurements of their phone.

Why is it hard? - Lack of documentation, standardization and support on collecting raw measurements on phones. - Processing raw measurements is tricky - Finding anomalies in this raw data is even harder

Some of it is working - yay! - and there's also a public API, such that others can use it too: https://claimr.tools