{
  "total": 2,
  "source": "d1",
  "tracking_since": "2026-10-25T12:38:37.716Z",
  "source_rechecks": {
    "rows": 332,
    "series": 250,
    "last_checked_at": "2026-10-25T13:38:37.000Z",
    "latest_result_counts": {
      "confirmed": 240,
      "unreachable": 5,
      "needs_review": 4,
      "changed": 1
    },
    "method": "Each source URL is fetched and the recorded numbers are looked for in the page (PDFs via pdftotext); anything not confirmed is reviewed by a human. Log: /downloads/price_rechecks.jsonl"
  },
  "observations": [
    {
      "id": "po_20261025_5dfd0b1109f7",
      "series_key": "ps_2ddd707a8849db83",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "bathymetric-survey",
        "drone-water-sampling"
      ],
      "provider_id": "platypus",
      "description": "Turnkey bathymetric mapping service, all inclusive (requires 2-month window)",
      "low": 18,
      "high": null,
      "currency": "USD",
      "unit": "per acre",
      "region": "",
      "source_url": "https://senseplatypus.com/quote",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:5dfd0b1109f795f8b0264b5e1ec799cb1a135b72c6d32f325cc191767846799f",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 18,
        "high": null,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_1f07618b03e7",
      "series_key": "ps_5181f82bbc71a2f4",
      "kind": "benchmark",
      "use_case_id": "drone-water-sampling",
      "use_case_ids": [
        "drone-water-sampling"
      ],
      "provider_id": null,
      "description": "SwellPro FD3 water-quality sampling drone, official store, base kit",
      "low": 1899,
      "high": 1899,
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://store.swellpro.com/products/fd3-water-quality-sampling-drone",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T19:43:25.629Z",
      "content_hash": "sha256:1f07618b03e79e986f83cd38a856c599924a0ebe27d01109d255efd75466783c",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1899,
        "high": 1899,
        "note": "Already in target currency; no conversion."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_2ddd707a8849db83",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "platypus",
      "description": "Turnkey bathymetric mapping service, all inclusive (requires 2-month window)",
      "currency": "USD",
      "unit": "per acre",
      "region": "",
      "source_url": "https://senseplatypus.com/quote",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 18,
        "high": null,
        "as_of": "2026-10",
        "id": "po_20261025_5dfd0b1109f7"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_5181f82bbc71a2f4",
      "kind": "benchmark",
      "use_case_id": "drone-water-sampling",
      "provider_id": null,
      "description": "SwellPro FD3 water-quality sampling drone, official store, base kit",
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://store.swellpro.com/products/fd3-water-quality-sampling-drone",
      "observations": 1,
      "first_observed_at": "2026-10-25T19:43:25.629Z",
      "last_observed_at": "2026-10-25T19:43:25.629Z",
      "current": true,
      "latest": {
        "low": 1899,
        "high": 1899,
        "as_of": "2026-10-25",
        "id": "po_20261025_1f07618b03e7"
      },
      "trend": null,
      "last_rechecked": null
    }
  ],
  "note": "Only one observation per series so far: we started recording every price on 2026-10-25 and re-check every source on a schedule. A trend appears when a re-checked source shows a different price (we never overwrite old observations).",
  "pagination": {
    "total": 2,
    "limit": 200,
    "offset": 0,
    "returned": 2,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}