{
  "total": 3,
  "source": "d1",
  "tracking_since": "2026-10-25T12:38:37.716Z",
  "source_rechecks": {
    "rows": 1252,
    "series": 885,
    "last_checked_at": "2026-10-28T03:28:34.081Z",
    "latest_result_counts": {
      "confirmed": 803,
      "changed": 6,
      "unreachable": 44,
      "needs_review": 2,
      "partial": 7,
      "not_found_on_page": 23
    },
    "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_582dd8d2171b",
      "series_key": "ps_9c19b53412bd3096",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "dam-spillway-inspection",
        "water-tank-reservoir-inspection",
        "hull-inspection-rov"
      ],
      "provider_id": "underwater-services-india-underwater-co-in",
      "description": "ROV services",
      "low": 25000,
      "high": 25000,
      "currency": "INR",
      "unit": "per day",
      "region": "",
      "source_url": "https://www.underwater.co.in/remotely-operated-vehicle.html",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:582dd8d2171bb24006f00c2cb79333fa94ce69e81e6ee587dd869615706987ec",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 263,
        "high": 263,
        "fx": {
          "pair": "INR/USD",
          "rate": 0.010513,
          "inr_per_usd": 95.12,
          "rate_date": "2026-10-27",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-27, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_77563deba2f8",
      "series_key": "ps_e9fa28824640c99c",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "water-tank-reservoir-inspection",
        "dam-spillway-inspection",
        "wind-turbine-blade-inspection",
        "roof-inspection-drone"
      ],
      "provider_id": "drone-services-ireland",
      "description": "ROV underwater inspection",
      "low": 900,
      "high": null,
      "currency": "EUR",
      "unit": "per day",
      "region": "",
      "source_url": "https://www.droneservicesireland.ie/drone-rov-underwater-inspection",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:77563deba2f8aaaf1953988e114fdd62b125c98062549a432a121bcbec92aad2",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1004,
        "high": null,
        "fx": {
          "pair": "EUR/USD",
          "rate": 1.115,
          "eur_per_usd": 0.89686,
          "rate_date": "2026-10-27",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-27, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_2a79f3010298",
      "series_key": "ps_1ed8b6d9879ae1dd",
      "kind": "benchmark",
      "use_case_id": "water-tank-reservoir-inspection",
      "use_case_ids": [
        "water-tank-reservoir-inspection"
      ],
      "provider_id": null,
      "description": "ROV inspection of in-service potable water tanks: $1,000 per tank (+$295 per report with photos/video); contractor proposal to a Georgia city, Jan 2026",
      "low": 1000,
      "high": 1000,
      "currency": "USD",
      "unit": "per tank",
      "region": "US",
      "source_url": "https://mccmeetingspublic.blob.core.usgovcloudapi.net/cviillega-meet-5e19643fa6a24b73af72574c8a7ab651/ITEM-Attachment-001-1b66a20e29a54e72b543384136e745ee.pdf",
      "as_of": "2026-01-14",
      "observed_at": "2026-10-25T19:21:13.434Z",
      "content_hash": "sha256:2a79f3010298197ab70da8306c0872f21ebdaa4634f8eb430581b5b47c8ff34f",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1000,
        "high": 1000,
        "note": "Already in target currency; no conversion."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_9c19b53412bd3096",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "underwater-services-india-underwater-co-in",
      "description": "ROV services",
      "currency": "INR",
      "unit": "per day",
      "region": "",
      "source_url": "https://www.underwater.co.in/remotely-operated-vehicle.html",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 25000,
        "high": 25000,
        "as_of": "2026-10",
        "id": "po_20261025_582dd8d2171b"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-27T05:28:28.477Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_e9fa28824640c99c",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "drone-services-ireland",
      "description": "ROV underwater inspection",
      "currency": "EUR",
      "unit": "per day",
      "region": "",
      "source_url": "https://www.droneservicesireland.ie/drone-rov-underwater-inspection",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 900,
        "high": null,
        "as_of": "2026-10",
        "id": "po_20261025_77563deba2f8"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-27T05:28:28.477Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_1ed8b6d9879ae1dd",
      "kind": "benchmark",
      "use_case_id": "water-tank-reservoir-inspection",
      "provider_id": null,
      "description": "ROV inspection of in-service potable water tanks: $1,000 per tank (+$295 per report with photos/video); contractor proposal to a Georgia city, Jan 2026",
      "currency": "USD",
      "unit": "per tank",
      "region": "US",
      "source_url": "https://mccmeetingspublic.blob.core.usgovcloudapi.net/cviillega-meet-5e19643fa6a24b73af72574c8a7ab651/ITEM-Attachment-001-1b66a20e29a54e72b543384136e745ee.pdf",
      "observations": 1,
      "first_observed_at": "2026-10-25T19:21:13.434Z",
      "last_observed_at": "2026-10-25T19:21:13.434Z",
      "current": true,
      "latest": {
        "low": 1000,
        "high": 1000,
        "as_of": "2026-01-14",
        "id": "po_20261025_2a79f3010298"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-27T01:26:25.942Z",
        "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"
}