Case 1 - Geneseo
I have 847 hours of field recording across three years of this work. I can tell you the exact timestamp — 2:14:37 AM — when a door opened by itself in a farmhouse outside Carbondale. Baseline decibel reading before it moved, the spike, the return to baseline in 0.4 seconds. Filed, labeled, cross-referenced with humidity readings and structural reports. Probable explanation still listed as HVAC pressure differential, confirm with building superintendent. The superintendent retired in 2019.