Design a way for handling integrity of Entities.

[piotrswigon]

For an entity such as Location {lat, lng} we can have is realMeasurement tags on lat and lng fields to specify the integrity of these fields.

If however a particle comes in that takes 2 locations A and B and "mixes" their lat and lng, it could be claimed that the resulting Location should have is realMeasurement on both their fields, even though lat and lng came from different locations. It is therefore impossible to distinguish a location that has been measured from a GPS sensor, from one that has been "remixed".

Some things to discuss: References, Inline Entities, Entity Tags...

@bgogul @seefeldb