{
  "schema": 1,
  "checked_at": "2026-10-02",
  "sources": [
    {"id":"nps-agua","title":"Agua Canyon","publisher":"National Park Service","url":"https://www.nps.gov/places/000/agua-canyon.htm","page_updated":"2026-08-31","checked_live":true,"supports":"Hunter at left; Rabbit at right; Backpacker is an alternative name for Rabbit. These identify forms in the published view, not surveyed feature coordinates.","rights":"Facts paraphrased; NPS original text is a U.S. Government work."},
    {"id":"nps-photo","title":"Agua Canyon reference photograph","publisher":"National Park Service","creator":"Peter Densmore","url":"https://www.nps.gov/common/uploads/cropped_image/primary/4BD4B145-A7B8-B02E-657999E7E883DFEF.jpg?width=1600&quality=90&mode=crop","source_page":"https://www.nps.gov/places/000/agua-canyon.htm","checked_live":true,"capture_date":null,"credit":"NPS Photo / Peter Densmore","rights":"Explicit NPS Photo credit; NPS ownership policy checked separately; no contrary credit on source page. No claim to original U.S. Government works.","rights_url":"https://www.nps.gov/aboutus/disclaimer.htm","local_file":"agua-nps-densmore.jpg","sha256":"523774567acf854ad2e7dbef5a40fe3f718342df7905a6c0267a69155c5a2b10","limits":"Single server-cropped perspective image, 1600 x 900. No camera calibration, capture date or physical scale. Hand-placed annotations are interpretations of this view."},
    {"id":"nps-rights","title":"NPS disclaimer: ownership","publisher":"National Park Service","url":"https://www.nps.gov/aboutus/disclaimer.htm","page_updated":"2025-03-05","checked_live":true,"supports":"NPS-created works generally public domain unless otherwise indicated; some third-party works on NPS sites are excluded. The photo was checked individually for an NPS credit."},
    {"id":"nps-hoodoos","title":"Hoodoos","publisher":"National Park Service","url":"https://www.nps.gov/brca/learn/nature/hoodoos.htm","page_updated":"2021-09-04","checked_live":true,"supports":"Differences in rock resistance help shape ledges and recesses. Used as general context, not to assign lithology, age or contacts to this particular photograph.","rights":"Paraphrased text only; no illustration from this page is reused."},
    {"id":"retained-terrain","title":"Integrated Agua Canyon terrain study","publisher":"USGS 3DEP data; BCC derived render","url":"https://registry.opendata.aws/usgs-lidar/","source_interval":"2018-04-27/2018-07-29","verification":"Retained integrated input metadata and bytes inspected locally; no raw returns reacquired or independently rebaked in this lane.","local_file":"agua-terrain-2018.webp","provenance_file":"terrain-provenance.json","rights":"US Government Public Domain for underlying data; prior BCC rendering reused with its attribution.","supports":"Broad landscape context in a 512 m square; 1 m detailed upper-envelope grid; local axes east/up/south; NAVD88 heights retained.","limits":"Filtering remnants, interpolated steep faces, unseen sides and undercuts unresolved. No Hunter/Rabbit object or exact dimension is established."},
    {"id":"retained-aerial","title":"USDA NAIP 2024 Agua Canyon crop","publisher":"USDA FPAC / Farm Service Agency","url":"https://apps.geo.fpac.usda.gov/geo-imagery/rest/services/naip/conus_naip/ImageServer","source_date":"2024-07-23","source_resolution_m":0.6,"raster_id":195956,"raster_name":"m_3711230_se_12_060_20240723","verification":"Retained integrated image/provenance checked locally; no new aerial acquisition.","local_file":"agua-naip-2024.webp","provenance_file":"aerial-provenance.json","rights":"US Government Public Domain, as recorded in the dataset-specific rights record.","rights_url":"https://catalog.data.gov/dataset/national-agriculture-imagery-program-naip-imagery","supports":"512 m square plan context, export EPSG:32612. 854-pixel export does not improve 0.6 m source detail.","limits":"Overhead color and acquisition shadows; no vertical-wall photography, photo registration, current condition or measured change."},
    {"id":"nps-poi","title":"NPS Public Points of Interest, Agua Canyon Overlook, OBJECTID 13658","publisher":"National Park Service","url":"https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_POIs/FeatureServer/0","record_last_edited":"2021-01-13","verification":"Retained public primary-service feature in research/travel/nps-pois.geojson inspected; original attributes preserved in anchor.json.","rights":"NPS public geospatial data; no exclusive claim to U.S. Government works.","supports":"Overlook locator only: heads-up digitized, arbitrary point, source NAIP/Harpers Ferry, accuracy Scaled.","limits":"No surveyed formation point, parking substitute, camera pose or access status. Number of decimals is not accuracy."}
  ],
  "evidence_policy":"Measured raw returns are not packaged here. Photograph is reference; aerial export and terrain render are derived; plates 01-05 are illustrative; plate 06 is a derived locator diagram. Original annotations are not measurements.",
  "new_work":"Six original SVG plates, six photo/aerial overlays, reader, evidence checks, four comparisons and complete static guide.",
  "reused_work":"One integrated terrain poster, one integrated aerial crop and their unchanged metadata. One individually credited NPS reference JPEG was acquired for this lane."
}