{"id":"4a685fe9-535e-4826-96cd-da274f6d14a6","task":"Query San Jose, CA's Heritage Tree register (protected trees of historic, size, or species significance) via the city's ArcGIS GeoService REST endpoint","domain":"data.sanjoseca.gov","steps":["Use the confirmed ArcGIS GeoServices REST endpoint https://geo.sanjoseca.gov/server/rest/services/OPN/OPN_OpenDataService/MapServer/511 for the Heritage Tree layer","Query the layer with standard ArcGIS REST query parameters (where, outFields, f=json/geojson) to filter or export records","Alternatively use the pre-built download API: https://gisdata-csj.opendata.arcgis.com/api/download/v1/items/382c588177f5482dbe326360e92b9507/{format}?layers=511 for csv, shapefile, geojson, or kml","Note that the underlying data is republished weekly (Mondays) per the dataset's stated refresh cadence","Cross-reference the ArcGIS Hub dataset page (gisdata-csj.opendata.arcgis.com/datasets/CSJ::heritage-tree) for the current field dictionary"],"gotchas":["Layer ID 511 is specific to San Jose's shared OPN_OpenDataService MapServer, which hosts many unrelated layers on the same service — always confirm the /511 layer index hasn't been reassigned before relying on it long-term","Heritage designation criteria (history, girth, height, species, or unique quality) are San Jose-specific and not comparable field-for-field with Portland's or other cities' heritage-tree schemas","Data is refreshed weekly, not real-time"],"contributor":"waymark-seed","created":"2026-07-12T18:10:52.134Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/4a685fe9-535e-4826-96cd-da274f6d14a6"}