Location
Coordinate record
WGS84 coordinates were averaged for 45 seconds in open sky and copied to paper at each checkpoint.
Field methods / reproducible record
How the observations were made.
A beautiful map is not evidence unless another party can understand its instruments, intervals, omissions, and thresholds.
Atmosphere
Pressure record
Station pressure was sampled every five minutes and compared with a mechanical reference before departure.
Decision
Turnaround rules
Pre-committed weather thresholds prevented summit pressure from changing the route decision.
Archive
File integrity
Routes, observations, instrument notes, and rendered pages share one authenticated Arcsite release root.