{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-user-ohlone-eagle-springs-water-20260906",
        "evidence_ids": [
          "evidence-user-ohlone-eagle-springs-water-20260906"
        ],
        "predicate": "firsthand_facility_observation",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "water-ohlone-eagle-springs",
        "temporal_scope": {
          "ends_on": "2026-09-06",
          "starts_on": "2026-09-06"
        },
        "value": {
          "facility_type": "water source",
          "latitude": 37.5116769,
          "longitude": -121.8770215,
          "observed_present": true,
          "provenance_class": "user_firsthand_field_observation",
          "route_segment": "Backpack Camp to Mission Peak, exiting at Stanford Avenue"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-user-ohlone-eagle-springs-water-20260906",
          "evidence_id": "evidence-user-ohlone-eagle-springs-water-20260906",
          "notes": "Firsthand dated field observation with user-supplied coordinate pin; distinct from official EBRPD availability evidence.",
          "observation_id": "observation-user-ohlone-eagle-springs-water-20260906",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "User firsthand trip report",
            "User-supplied Google Maps pin"
          ],
          "content": "The user reports personally observing the water source at Eagle Springs water on 2026-09-06 while traveling Backpack Camp to Mission Peak, exiting at Stanford Avenue. The supplied pin resolves to 37.5116769, -121.8770215.",
          "observation_id": "observation-user-ohlone-eagle-springs-water-20260906",
          "observed_at": "2026-09-06T00:00:00+00:00",
          "observer": "User firsthand field observation, transcribed by Wayproof",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-google-maps-ohlone-eagle-springs-water"
        }
      ],
      "sources": [
        {
          "locator": "https://maps.app.goo.gl/1bqWS93iWsZDsZdk8?g_st=ic",
          "publisher": "Google Maps (user-supplied firsthand-observation pin)",
          "source_id": "source-google-maps-ohlone-eagle-springs-water"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "water-ohlone-eagle-springs",
      "kind": "water_source",
      "name": "Eagle Springs"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ohlone-corridor-map-locations",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-google-maps-ohlone-eagle-springs-water.json",
      "reason": "Capture user-supplied Google Maps locations and dated firsthand Ohlone corridor facility observations with explicit provenance.",
      "record_id": "source-google-maps-ohlone-eagle-springs-water",
      "record_type": "source",
      "summary": "Capture six Google Maps labeled Ohlone corridor places plus dated September 5-6, 2026 firsthand water and restroom observations from the user's Del Valle-to-Mission Peak trip."
    }
  ],
  "navigation": {
    "next_id": "source-google-maps-ohlone-lichen-bark-360",
    "position": 177,
    "previous_id": "source-google-maps-ohlone-eagle-spring-backpack-camp",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [
        "User firsthand trip report",
        "User-supplied Google Maps pin"
      ],
      "content": "The user reports personally observing the water source at Eagle Springs water on 2026-09-06 while traveling Backpack Camp to Mission Peak, exiting at Stanford Avenue. The supplied pin resolves to 37.5116769, -121.8770215.",
      "observation_id": "observation-user-ohlone-eagle-springs-water-20260906",
      "observed_at": "2026-09-06T00:00:00+00:00",
      "observer": "User firsthand field observation, transcribed by Wayproof",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-google-maps-ohlone-eagle-springs-water"
    }
  ],
  "record": {
    "locator": "https://maps.app.goo.gl/1bqWS93iWsZDsZdk8?g_st=ic",
    "publisher": "Google Maps (user-supplied firsthand-observation pin)",
    "source_id": "source-google-maps-ohlone-eagle-springs-water"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://maps.app.goo.gl/1bqWS93iWsZDsZdk8?g_st=ic",
      "publisher": "Google Maps (user-supplied firsthand-observation pin)",
      "source_id": "source-google-maps-ohlone-eagle-springs-water"
    }
  ]
}