| http://www.w3.org/ns/prov#value | - Pertinent information such as Ephemeris, Almanac, GPS time, approximate location, satellites that should be in view, and the like is determined by a GPS receiver 24 known to be reliable, such as a GPS receiver 24 located at a gateway 40 known to be uncompromised and uncorrupted, and/or provided by the server 14.
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