# Land Report v0 — llms.txt
# https://landreport.adametherzlab.com/
# Last updated: 2026-05-17
# Maintained by: AdametherzLab (https://adametherzlab.com)

## What this service is
Land Report v0 is a self-serve AI land analysis report for rural parcels up to 200 acres. It returns a single HTML report plus a downloadable raw_data.json that contains:
- USDA SSURGO soil map units intersecting the parcel, dominant components, drainage class, taxonomic order
- USGS 3DEP LiDAR-derived terrain layers (slope, aspect, hillshade, Topographic Wetness Index) at 2 meter resolution
- NAIP aerial imagery at 0.6 meter ground sample distance
- Sentinel-2 multispectral imagery at 10 meter resolution
- Suitability scoring for intended uses (homestead, orchard, cattle, garden, hay, solar, well siting, hunting)
- AI synthesis grounded in the four sources above, with every numeric claim citation-tagged

## What this service is NOT
- Not a land survey. It does not establish legal property boundaries.
- Not legal advice. It does not opine on title, easements, deed restrictions, or zoning.
- Not a soils investigation. It does not auger or lab-test soil; it surfaces public SSURGO data only.
- Not a hydrogeology report. Depth to groundwater requires a licensed hydrogeologist.
- Not a drone capture or photogrammetry. For 3D Gaussian Splatting captures of rural Texas land, see the sibling product Land3D at https://land3d.adametherzlab.com.

## Pricing
$25 USDC per parcel report, paid on-chain via the x402 protocol on Base. A human land or soils consultant typically charges $200 to $500 for the same desktop-screening scope.

## Sample report (no auth)
A sanitized public sample of one of the 10 auto-generated rural Texas test plots is available at:
https://landreport.adametherzlab.com/sample

This sample is generated entirely from public USGS, USDA, and ESA data sources for an auto-generated rural Texas polygon. It is NOT a real customer's parcel and contains no owner-identifying information.

## API endpoint (paid)
POST https://landreport.adametherzlab.com/api/land-report/generate
Body: { "plot_polygon_geojson": <GeoJSON Polygon>, "intended_uses": "homestead,orchard,garden" }
Price: $25 USDC on Base
Discovery: https://x402.adametherzlab.com/.well-known/x402.json

## Five-gate verification scope
Every report must pass five gates before delivery. If any gate fails, the report is not delivered and the customer is not billed.
1. Grounding-prompt gate: synthesizer must attach inline citation tags like [NAIP-YYYY-MM-DD], [SSURGO-MUKEY-XXX], [3DEP-...], [S2-...] to every numeric claim, or mark it [DATA_GAP: ...].
2. Fact-check gate: a separate Python pass extracts every numeric claim and cross-references it against the raw JSON pulled from STAC, SSURGO, and 3DEP. Claims are tagged VERIFIED, UNVERIFIABLE, or CONTRADICTED.
3. Hard-rules gate: the synthesis is forbidden from saying a parcel is "fit for" any use; it must say "consistent with" plus a confidence level plus the data gaps. Disclaimers are inserted in four places per report.
4. Contradicted-blocked gate: if any claim is CONTRADICTED by raw source data, the pipeline exits non-zero and refuses to ship the report.
5. Numeric-string coercion gate (patched 2026-05-17): SSURGO returns some numeric fields as thousands-separated strings (for example mapunit_acres as "16217" not 16217). The original fact checker only matched int/float JSON leaves and incorrectly flagged every plot as CONTRADICTED. The fix normalizes numeric strings before comparison. All 10 rural Texas test plots plus Far Out Farm now pass with zero contradicted claims.

## Data sources (public, attributed)
- NAIP (USDA National Agriculture Imagery Program) via Microsoft Planetary Computer STAC
- Sentinel-2 L2A (ESA Copernicus) via Microsoft Planetary Computer STAC
- USGS 3DEP LiDAR Digital Terrain Models via STAC
- USDA SSURGO Soil Survey Geographic Database via Soil Data Mart Web Service

## Geographic coverage
Continental United States. Lower 48. Best coverage in the 3DEP LiDAR program coverage area. Some rural parcels in mountain west and northern plains may have lower-resolution DEM coverage.

## Parcel size limit
v0 is capped at 200 acres per report. For larger parcels contact us.

## Privacy
The polygon you submit is processed on the AdametherzLab VPS to generate the report. Raw outputs are stored in /opt/land-report/out/<plot_id>/ for the customer to retrieve. We do not resell, syndicate, or train on customer polygons. We do not log owner-identifying information because we do not ask for it.

## Contact
adametherzlab@gmail.com
https://x.com/adametherzlab
https://adametherzlab.com

## Discoverability
The paid endpoint is registered in the x402 manifest at https://x402.adametherzlab.com/.well-known/x402.json and is discoverable via the Coinbase x402 Bazaar.