Problem and case
Why parcel-first interpretation matters.
TL;DR
OESIS connects local readings, parcel context, and public hazard feeds into one parcel view so households can make better-informed decisions with confidence and reasons shown.
This page explains the product gap in plain language: one parcel view that is easier to act on than map-only feeds or isolated sensors.

What problem this solves
Regional maps and single-purpose sensors both help, but households still have to do hard interpretation on their own: what is most plausible on this property right now?
OESIS focuses on that gap. It combines local readings, parcel context, and public hazard feeds into one parcel view so a household can see what is observed, what is inferred, and how strong the evidence is.
Why this approach is different
- One parcel story, not scattered tools. You get one property-facing view instead of switching between unrelated charts and apps.
- Evidence stays legible. The product distinguishes observed signals from estimated conditions and shows reasons, not only a color or score.
- Ownership stays local. Parcel-linked data is private by default; broader sharing is opt-in and policy-gated.
What is implemented today
Active development spans v0.1 through v0.5. The v0.1 reference implementation proves the core pipeline end to end: one bench-air node through ingest and inference to a parcel view with evidence modes and reasons. Later lanes add mast-lite outdoor sensing (v0.2), flood-node (v0.3), trust scoring with a node registry (v0.4), and governance enforcement with consent and revocation (v0.5). Three hazard tracks — smoke, heat, and flood — produce derived statuses for shelter, reentry, egress, and asset risk.
Near-term work sets the contracts, governance boundaries, and field practices that later phases depend on.
What expands later
The parcel remains the anchor. Later phases add interior response and verification (relating outdoor hazards to indoor conditions), block-scale shared inference, and neighborhood coordination — but those are direction, not a claim that multi-parcel capabilities are already operational.
Trust boundary
OESIS does not claim to replace official alerts, emergency services, or on-scene judgment. Parcel-state outputs are advisory estimates with explicit uncertainty. See Governance and privacy for ownership, sharing, and claim boundaries.