{
  "total": 3,
  "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_0e2d8b9d2027",
      "series_key": "ps_a5e70dc7d4fe3d2b",
      "kind": "benchmark",
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      "use_case_ids": [
        "bathymetric-survey"
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      "provider_id": null,
      "description": "Turnkey autonomous-boat bathymetric mapping (Platypus), as low as",
      "low": 18,
      "high": null,
      "currency": "USD",
      "unit": "per acre",
      "region": "US",
      "source_url": "https://senseplatypus.com/quote",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:0e2d8b9d2027973f630fcb3e20f79acf8beaae19f2441cd661ccf4aebf3c716c",
      "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_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_f394ccd4b358",
      "series_key": "ps_06654d60e7c342fd",
      "kind": "benchmark",
      "use_case_id": "bathymetric-survey",
      "use_case_ids": [
        "bathymetric-survey"
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      "provider_id": null,
      "description": "University USV service center vessel day rates (sensors/crew extra)",
      "low": 496.08,
      "high": 1491.23,
      "currency": "USD",
      "unit": "per day",
      "region": "US",
      "source_url": "https://www.gri.msstate.edu/MarineOps/files/USV_External_Cost_Sheet.pdf",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
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      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 496,
        "high": 1491,
        "note": "Already in target currency; no conversion."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_a5e70dc7d4fe3d2b",
      "kind": "benchmark",
      "use_case_id": "bathymetric-survey",
      "provider_id": null,
      "description": "Turnkey autonomous-boat bathymetric mapping (Platypus), as low as",
      "currency": "USD",
      "unit": "per acre",
      "region": "US",
      "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_0e2d8b9d2027"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
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    },
    {
      "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"
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    },
    {
      "series_key": "ps_06654d60e7c342fd",
      "kind": "benchmark",
      "use_case_id": "bathymetric-survey",
      "provider_id": null,
      "description": "University USV service center vessel day rates (sensors/crew extra)",
      "currency": "USD",
      "unit": "per day",
      "region": "US",
      "source_url": "https://www.gri.msstate.edu/MarineOps/files/USV_External_Cost_Sheet.pdf",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 496.08,
        "high": 1491.23,
        "as_of": "2026-10",
        "id": "po_20261025_f394ccd4b358"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:55.540Z",
        "result": "confirmed",
        "by": "automatic"
      }
    }
  ],
  "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": 3,
    "limit": 200,
    "offset": 0,
    "returned": 3,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}