[bhaney]

I doubt this is how it works, but you could do a k-anonymity thing and search for a location by submitting the first few characters of the hash of the location, and getting back a response with the data for all locations with a hash that starts with those characters. Client picks out the correct location from the response, and the server is never aware of which one the client wanted.

Same as searching for passwords by partial hash with the pwned passwords api.