{
  "total": 9,
  "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_4d5d91f8a9e8",
      "series_key": "ps_d68b3c76227ada93",
      "kind": "benchmark",
      "use_case_id": "hull-inspection-rov",
      "use_case_ids": [
        "hull-inspection-rov"
      ],
      "provider_id": null,
      "description": "ROV hull/underwater inspection projects (Piraeus, Greece)",
      "low": 400,
      "high": 3000,
      "currency": "EUR",
      "unit": "per project",
      "region": "GR",
      "source_url": "https://rov-marine.eu/pricing/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:4d5d91f8a9e839f0ba63273c29fe25827056cdea10a3cc957e07278f472667ad",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 448,
        "high": 3358,
        "fx": {
          "pair": "EUR/USD",
          "rate": 1.11929,
          "eur_per_usd": 0.89342,
          "rate_date": "2026-10-23",
          "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 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "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": 0.010533,
          "inr_per_usd": 94.94,
          "rate_date": "2026-10-23",
          "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 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_9e5b0d52668e",
      "series_key": "ps_14e4a4e402f558eb",
      "kind": "benchmark",
      "use_case_id": "hull-inspection-rov",
      "use_case_ids": [
        "hull-inspection-rov"
      ],
      "provider_id": null,
      "description": "ROV underwater inspection (Ireland), from",
      "low": 900,
      "high": null,
      "currency": "EUR",
      "unit": "per day",
      "region": "IE",
      "source_url": "https://www.droneservicesireland.ie/drone-rov-underwater-inspection",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:9e5b0d52668e07b268b420453998c9135f2683b4e25243f3beecdbb770e84d18",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1007,
        "high": null,
        "fx": {
          "pair": "EUR/USD",
          "rate": 1.11929,
          "eur_per_usd": 0.89342,
          "rate_date": "2026-10-23",
          "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 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_defcae5fcd4c",
      "series_key": "ps_d98e548cda01954f",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "hull-inspection-rov",
        "underwater-filming"
      ],
      "provider_id": "rov-marine",
      "description": "ROV underwater inspection from €150; typical projects €400-€3,000+",
      "low": 150,
      "high": 3000,
      "currency": "EUR",
      "unit": "per project",
      "region": "",
      "source_url": "https://rov-marine.eu/pricing/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:defcae5fcd4c86d8d7415715ca56591f2daa0895ac4d57be0b6d09d0e1754695",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 168,
        "high": 3358,
        "fx": {
          "pair": "EUR/USD",
          "rate": 1.11929,
          "eur_per_usd": 0.89342,
          "rate_date": "2026-10-23",
          "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 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_e5b323d1760f",
      "series_key": "ps_31449280c86b07df",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "hull-inspection-rov",
        "underwater-search-recovery",
        "underwater-filming"
      ],
      "provider_id": "exploracion-submarina",
      "description": "ROV service: €2,300/day (3-5h submerged); €350/hour; 300 m depth service €5,750/day",
      "low": 350,
      "high": 5750,
      "currency": "EUR",
      "unit": "per day / per hour",
      "region": "",
      "source_url": "https://exploracionsubmarina.com/alquiler-rov/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:e5b323d1760f3db30b13a07d7054eb957166f05ccd376cc635c98718abcfc071",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 392,
        "high": 6436,
        "fx": {
          "pair": "EUR/USD",
          "rate": 1.11929,
          "eur_per_usd": 0.89342,
          "rate_date": "2026-10-23",
          "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 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_7486ee696b8b",
      "series_key": "ps_bdb730dc9c21f5d3",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "underwater-filming",
        "hull-inspection-rov"
      ],
      "provider_id": "blue-robotics",
      "description": "BlueROV2 underwater ROV, starting price (configurations and accessories extra)",
      "low": 4900,
      "high": null,
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://bluerobotics.com/store/rov/bluerov2/",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T16:36:25.503Z",
      "content_hash": "sha256:7486ee696b8b6f604df0835594eaf0044fe446eead21a02f6392694aa09c6c71",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 4900,
        "high": null,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_7f87f8193a8d",
      "series_key": "ps_7ba7b52132aa2632",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "underwater-filming",
        "hull-inspection-rov"
      ],
      "provider_id": "qysea",
      "description": "QYSEA FIFISH V-EVO 4K underwater drone, Standard Pack (100 m tether), QYSEA US store",
      "low": 1399,
      "high": 1399,
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://store.qysea.com/fifish-v-evo.html",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T16:36:25.503Z",
      "content_hash": "sha256:7f87f8193a8d9b42c416b3e475d92ee6e225605611422c9c0e38829aef47d41b",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1399,
        "high": 1399,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_aa6ac1d0a642",
      "series_key": "ps_00947bff460adfc7",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "underwater-filming",
        "hull-inspection-rov"
      ],
      "provider_id": "qysea",
      "description": "QYSEA FIFISH V-EVO 4K underwater drone, Arm Pack (100 m tether, robotic arm), QYSEA US store",
      "low": 1699,
      "high": 1699,
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://store.qysea.com/fifish-v-evo.html",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T16:36:25.503Z",
      "content_hash": "sha256:aa6ac1d0a642b03db417ef35310feab6b304aa0b36bc4aa65982187d0eb8282c",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1699,
        "high": 1699,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_f4f24c94e71b",
      "series_key": "ps_09a327f167184264",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "dock-pier-inspection",
        "hull-inspection-rov"
      ],
      "provider_id": "harlem-subsea",
      "description": "ROV underwater inspection (quay, boat or structure) with written report, starting price",
      "low": 2500,
      "high": null,
      "currency": "NOK",
      "unit": "per inspection",
      "region": "NO-31",
      "source_url": "https://harlemsubsea.no/",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:f4f24c94e71bb700948bc1c7f35cd6ef0a9ff14b035d4a63837497effff0b3e4",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 267,
        "high": null,
        "fx": {
          "pair": "NOK/USD",
          "rate": 0.106942,
          "nok_per_usd": 9.3509,
          "rate_date": "2026-10-23",
          "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 2026-10-23, not at the price's as_of date. Indicative only."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_d68b3c76227ada93",
      "kind": "benchmark",
      "use_case_id": "hull-inspection-rov",
      "provider_id": null,
      "description": "ROV hull/underwater inspection projects (Piraeus, Greece)",
      "currency": "EUR",
      "unit": "per project",
      "region": "GR",
      "source_url": "https://rov-marine.eu/pricing/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 400,
        "high": 3000,
        "as_of": "2026-10",
        "id": "po_20261025_4d5d91f8a9e8"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "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": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_14e4a4e402f558eb",
      "kind": "benchmark",
      "use_case_id": "hull-inspection-rov",
      "provider_id": null,
      "description": "ROV underwater inspection (Ireland), from",
      "currency": "EUR",
      "unit": "per day",
      "region": "IE",
      "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_9e5b0d52668e"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_d98e548cda01954f",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "rov-marine",
      "description": "ROV underwater inspection from €150; typical projects €400-€3,000+",
      "currency": "EUR",
      "unit": "per project",
      "region": "",
      "source_url": "https://rov-marine.eu/pricing/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 150,
        "high": 3000,
        "as_of": "2026-10",
        "id": "po_20261025_defcae5fcd4c"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_31449280c86b07df",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "exploracion-submarina",
      "description": "ROV service: €2,300/day (3-5h submerged); €350/hour; 300 m depth service €5,750/day",
      "currency": "EUR",
      "unit": "per day / per hour",
      "region": "",
      "source_url": "https://exploracionsubmarina.com/alquiler-rov/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 350,
        "high": 5750,
        "as_of": "2026-10",
        "id": "po_20261025_e5b323d1760f"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_bdb730dc9c21f5d3",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "blue-robotics",
      "description": "BlueROV2 underwater ROV, starting price (configurations and accessories extra)",
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://bluerobotics.com/store/rov/bluerov2/",
      "observations": 1,
      "first_observed_at": "2026-10-25T16:36:25.503Z",
      "last_observed_at": "2026-10-25T16:36:25.503Z",
      "current": true,
      "latest": {
        "low": 4900,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_7486ee696b8b"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_7ba7b52132aa2632",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "qysea",
      "description": "QYSEA FIFISH V-EVO 4K underwater drone, Standard Pack (100 m tether), QYSEA US store",
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://store.qysea.com/fifish-v-evo.html",
      "observations": 1,
      "first_observed_at": "2026-10-25T16:36:25.503Z",
      "last_observed_at": "2026-10-25T16:36:25.503Z",
      "current": true,
      "latest": {
        "low": 1399,
        "high": 1399,
        "as_of": "2026-10-25",
        "id": "po_20261025_7f87f8193a8d"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_00947bff460adfc7",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "qysea",
      "description": "QYSEA FIFISH V-EVO 4K underwater drone, Arm Pack (100 m tether, robotic arm), QYSEA US store",
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://store.qysea.com/fifish-v-evo.html",
      "observations": 1,
      "first_observed_at": "2026-10-25T16:36:25.503Z",
      "last_observed_at": "2026-10-25T16:36:25.503Z",
      "current": true,
      "latest": {
        "low": 1699,
        "high": 1699,
        "as_of": "2026-10-25",
        "id": "po_20261025_aa6ac1d0a642"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_09a327f167184264",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "harlem-subsea",
      "description": "ROV underwater inspection (quay, boat or structure) with written report, starting price",
      "currency": "NOK",
      "unit": "per inspection",
      "region": "NO-31",
      "source_url": "https://harlemsubsea.no/",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 2500,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_f4f24c94e71b"
      },
      "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": 9,
    "limit": 200,
    "offset": 0,
    "returned": 9,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}