GPS produces samples
During an intentionally started activity, a device estimates location repeatedly. Each sample can include coordinates, time and accuracy information. Hardware, satellite visibility, buildings, trees, terrain and operating-system behavior influence those estimates.
Marchh may ignore samples that do not meet its accuracy or movement-integrity requirements. This protects the route from some noise but can also leave gaps when conditions are poor.
Samples become route geometry
Accepted points can be ordered into a route that represents the recorded walk or run. Distance, duration and pace are calculated from activity information rather than guaranteed measurements of the physical ground.
Sudden jumps, implausible movement or missing data can make geometry unusable. Restarting later cannot recreate points the device never supplied.
Closure creates a candidate area
An open route is a line. When route geometry returns around and encloses space, it can define a polygon-like covered area for evaluation.
Visual closeness is not the only factor. The accepted geometry must be usable under Marchh's current rules, which are not reduced to a public exploit-sensitive threshold.
Marchh evaluates territory
The service can consider route geometry, covered area, accuracy, activity integrity, minimum requirements and conflicts with existing authoritative territory information.
A successful result is virtual territory on the shared map. It can display ownership and can later change through territory mechanics.
Integrity preserves the physical link
The purpose of GPS territory is to connect map state to real movement. Spoofed locations, fabricated routes, automation and duplicated activity abuse break that connection.
Marchh can reject affected activity or release territory obtained through manipulation without publishing the internal signals used to reach that decision.
Questions people ask
Does a closed route always create territory?
No. Closure supplies an area to evaluate, but location quality, route geometry, activity integrity, territory conflicts and other rules still determine eligibility.
Is GPS territory a legal boundary?
No. It is product geometry for a virtual map and has no legal surveying, ownership or access meaning.
