{
  "asset": "/media/worlds/island-coastlines.json",
  "source": "https://overpass-api.de/api/interpreter",
  "query": "[out:json][timeout:30];way[\"natural\"=\"coastline\"](17.64,-65.07,18.42,-64.54);out geom;",
  "sourceDatabaseTimestamp": "2026-09-07T02:18:20Z",
  "retrievedAt": "2026-09-07T02:32:41.597Z",
  "sourceResponseSha256": "ed5c68753b59883c923f75df4ad5474247d00843ac8af476acf3c7b1c9c7c400",
  "assetSha256": "6ea3ecd2008dc020b3bf87fb593aaa51c93b459bd1e7f66bebc0689900c3fb35",
  "license": "ODbL-1.0",
  "licenseUrl": "https://opendatacommons.org/licenses/odbl/1-0/",
  "copyrightUrl": "https://www.openstreetmap.org/copyright",
  "dataDefinition": "https://wiki.openstreetmap.org/wiki/Tag:natural%3Dcoastline",
  "derivation": "Coastline ways joined by identical endpoint node IDs into closed rings; four main island rings selected by geographic bounds, plus fully enclosed smaller coastline rings. Douglas–Peucker simplification tolerance 0.0001 degrees, split at the middle of each closed ring. Coordinates retained in WGS84 longitude, latitude. No coastline tracing, elevation, bathymetry, satellite imagery or personal data added. All source way IDs retained in the downloadable derived database.",
  "visualTreatment": "Coastlines mask a separately sourced, local Mapzen elevation grid in the interactive scene; the still view uses flat cartographic shapes. See island-elevation-provenance.json for terrain sources and physical scale. Decorative colors and coastal glow do not represent observed vegetation, water depth or current conditions.",
  "review": "All four selected main rings are closed, finite and in the expected U.S. Virgin Islands bounds. Island map is an approximate discovery overview, not navigation."
}