{
  "total": 7,
  "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_04a79dcf49ba",
      "series_key": "ps_cccf744da95e0713",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "facade-inspection",
        "bridge-inspection-drone",
        "wildlife-survey-drone",
        "construction-progress-monitoring",
        "drone-mapping-orthomosaic",
        "roof-inspection-drone"
      ],
      "provider_id": "aerometrics",
      "description": "Asset inspection by drone (roofs, facades, bridges, towers; RGB and radiometric thermal), excl. VAT, starting price",
      "low": 350,
      "high": null,
      "currency": "GBP",
      "unit": "per job",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:04a79dcf49ba61a78f4ac730366e22a15c0c60ec526716ac540bcbcc4cafeacc",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 468,
        "high": null,
        "fx": {
          "pair": "GBP/USD",
          "rate": 1.33683,
          "gbp_per_usd": 0.74804,
          "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_1aac4562724f",
      "series_key": "ps_e8b639366a64e312",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "facade-inspection",
        "bridge-inspection-drone",
        "wildlife-survey-drone",
        "construction-progress-monitoring",
        "drone-mapping-orthomosaic",
        "roof-inspection-drone"
      ],
      "provider_id": "aerometrics",
      "description": "Drone operation day rate (up to 8 h on site), excl. VAT; half day £650",
      "low": 1100,
      "high": null,
      "currency": "GBP",
      "unit": "per day",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:1aac4562724fbd1a170663e9aaec792784fb840e2479b0899a154d358404c327",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1471,
        "high": null,
        "fx": {
          "pair": "GBP/USD",
          "rate": 1.33683,
          "gbp_per_usd": 0.74804,
          "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_8adffb6963b1",
      "series_key": "ps_49db2f001fc848ad",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "facade-inspection",
        "bridge-inspection-drone",
        "wildlife-survey-drone",
        "construction-progress-monitoring",
        "drone-mapping-orthomosaic",
        "roof-inspection-drone"
      ],
      "provider_id": "aerometrics",
      "description": "Deer count survey with thermal and RGB drone imaging (1 day capture + 1 day analysis), excl. VAT, starting price",
      "low": 1500,
      "high": null,
      "currency": "GBP",
      "unit": "per survey",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:8adffb6963b1bf23c61dbd82a8b21f397e9008cce2ebc6422fa4f22312aa3088",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 2005,
        "high": null,
        "fx": {
          "pair": "GBP/USD",
          "rate": 1.33683,
          "gbp_per_usd": 0.74804,
          "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_e78227a7e680",
      "series_key": "ps_b5674bf292cf3cf3",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "facade-inspection",
        "bridge-inspection-drone",
        "wildlife-survey-drone",
        "construction-progress-monitoring",
        "drone-mapping-orthomosaic",
        "roof-inspection-drone"
      ],
      "provider_id": "aerometrics",
      "description": "Construction progress monitoring flight, excl. VAT, starting price",
      "low": 350,
      "high": null,
      "currency": "GBP",
      "unit": "per visit",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:e78227a7e6804786c4bf520cae29f7f92cea17f9c1cd8860909bbbf664711981",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 468,
        "high": null,
        "fx": {
          "pair": "GBP/USD",
          "rate": 1.33683,
          "gbp_per_usd": 0.74804,
          "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_4af0b36b1a3b",
      "series_key": "ps_136eb1fd771e959a",
      "kind": "benchmark",
      "use_case_id": "bridge-inspection-drone",
      "use_case_ids": [
        "bridge-inspection-drone"
      ],
      "provider_id": null,
      "description": "Drone inspection of a complex structure: viaduct, cable-stayed bridge or difficult river access (C-DRONE price guide, France, observed 2026 range, excl. VAT)",
      "low": 1800,
      "high": 3200,
      "currency": "EUR",
      "unit": "per structure",
      "region": "FR",
      "source_url": "https://c-drone.fr/en/guides/drone-bridge-inspection-price/",
      "as_of": "2026-09-22",
      "observed_at": "2026-10-25T22:32:28.284Z",
      "content_hash": "sha256:4af0b36b1a3b23a470705c0235a7ced37c97d6ad21ed03a4d12f961a1ea81b3b",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 2015,
        "high": 3582,
        "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_cd9fd24a7297",
      "series_key": "ps_02fbfa3dec49c22b",
      "kind": "benchmark",
      "use_case_id": "bridge-inspection-drone",
      "use_case_ids": [
        "bridge-inspection-drone"
      ],
      "provider_id": null,
      "description": "Drone inspection of a small municipal bridge or footbridge, simple photo record (C-DRONE price guide, France, observed 2026 range, excl. VAT)",
      "low": 400,
      "high": 700,
      "currency": "EUR",
      "unit": "per structure",
      "region": "FR",
      "source_url": "https://c-drone.fr/en/guides/drone-bridge-inspection-price/",
      "as_of": "2026-09-22",
      "observed_at": "2026-10-25T22:32:28.284Z",
      "content_hash": "sha256:cd9fd24a72976fb101fb1ab2978ffd11cf938af80dc74b1fe11d6e119d9ab5f6",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 448,
        "high": 784,
        "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_d66f8fab556a",
      "series_key": "ps_9b73c247c844c4b0",
      "kind": "benchmark",
      "use_case_id": "bridge-inspection-drone",
      "use_case_ids": [
        "bridge-inspection-drone"
      ],
      "provider_id": null,
      "description": "Drone inspection of a standard road bridge with 3D model and defect catalogue (C-DRONE price guide, France, observed 2026 range, excl. VAT)",
      "low": 900,
      "high": 1700,
      "currency": "EUR",
      "unit": "per structure",
      "region": "FR",
      "source_url": "https://c-drone.fr/en/guides/drone-bridge-inspection-price/",
      "as_of": "2026-09-22",
      "observed_at": "2026-10-25T22:32:28.284Z",
      "content_hash": "sha256:d66f8fab556add5d6fa56854d8fb04cb0bc81445330863ca1d96e8e151fe4270",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1007,
        "high": 1903,
        "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."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_cccf744da95e0713",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "aerometrics",
      "description": "Asset inspection by drone (roofs, facades, bridges, towers; RGB and radiometric thermal), excl. VAT, starting price",
      "currency": "GBP",
      "unit": "per job",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 350,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_04a79dcf49ba"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_e8b639366a64e312",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "aerometrics",
      "description": "Drone operation day rate (up to 8 h on site), excl. VAT; half day £650",
      "currency": "GBP",
      "unit": "per day",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 1100,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_1aac4562724f"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_49db2f001fc848ad",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "aerometrics",
      "description": "Deer count survey with thermal and RGB drone imaging (1 day capture + 1 day analysis), excl. VAT, starting price",
      "currency": "GBP",
      "unit": "per survey",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 1500,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_8adffb6963b1"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_b5674bf292cf3cf3",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "aerometrics",
      "description": "Construction progress monitoring flight, excl. VAT, starting price",
      "currency": "GBP",
      "unit": "per visit",
      "region": "GB",
      "source_url": "https://aerometrics.co.uk/drone-rate-card",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 350,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_e78227a7e680"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_136eb1fd771e959a",
      "kind": "benchmark",
      "use_case_id": "bridge-inspection-drone",
      "provider_id": null,
      "description": "Drone inspection of a complex structure: viaduct, cable-stayed bridge or difficult river access (C-DRONE price guide, France, observed 2026 range, excl. VAT)",
      "currency": "EUR",
      "unit": "per structure",
      "region": "FR",
      "source_url": "https://c-drone.fr/en/guides/drone-bridge-inspection-price/",
      "observations": 1,
      "first_observed_at": "2026-10-25T22:32:28.284Z",
      "last_observed_at": "2026-10-25T22:32:28.284Z",
      "current": true,
      "latest": {
        "low": 1800,
        "high": 3200,
        "as_of": "2026-09-22",
        "id": "po_20261025_4af0b36b1a3b"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_02fbfa3dec49c22b",
      "kind": "benchmark",
      "use_case_id": "bridge-inspection-drone",
      "provider_id": null,
      "description": "Drone inspection of a small municipal bridge or footbridge, simple photo record (C-DRONE price guide, France, observed 2026 range, excl. VAT)",
      "currency": "EUR",
      "unit": "per structure",
      "region": "FR",
      "source_url": "https://c-drone.fr/en/guides/drone-bridge-inspection-price/",
      "observations": 1,
      "first_observed_at": "2026-10-25T22:32:28.284Z",
      "last_observed_at": "2026-10-25T22:32:28.284Z",
      "current": true,
      "latest": {
        "low": 400,
        "high": 700,
        "as_of": "2026-09-22",
        "id": "po_20261025_cd9fd24a7297"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_9b73c247c844c4b0",
      "kind": "benchmark",
      "use_case_id": "bridge-inspection-drone",
      "provider_id": null,
      "description": "Drone inspection of a standard road bridge with 3D model and defect catalogue (C-DRONE price guide, France, observed 2026 range, excl. VAT)",
      "currency": "EUR",
      "unit": "per structure",
      "region": "FR",
      "source_url": "https://c-drone.fr/en/guides/drone-bridge-inspection-price/",
      "observations": 1,
      "first_observed_at": "2026-10-25T22:32:28.284Z",
      "last_observed_at": "2026-10-25T22:32:28.284Z",
      "current": true,
      "latest": {
        "low": 900,
        "high": 1700,
        "as_of": "2026-09-22",
        "id": "po_20261025_d66f8fab556a"
      },
      "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": 7,
    "limit": 200,
    "offset": 0,
    "returned": 7,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}