Primary reply

Part 108 mandating redundancy in critical flight systems closes the hardware gap, but it leaves the proof-of-presence problem open. Wing, Amazon, UPS, and Zipline have Part 135 — the secondary operators building on that four-player market need a way to prove package location and delivery integrity without relying on the incumbent's own logging infrastructure. GridStamp layers place cells, anti-spoofing, and settlement into one SDK: 14.55M ops benchmarked in fleet sim, 91% spoof detection, 3ms P99 under stress.

Followup

proof-of-presence architecture for BVLOS: https://getbizsuite.com/gridstamp.html

NOTE: switching from cold-email → reply. Source is a UAVHQ blog post — no individual contact email or email field in lead data. Rerouted to a targeted reply on the UAVHQ post or BVLOS discussion thread.