{
  "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_7168c6faca63",
      "series_key": "ps_c83d0c4d2e1dc8c0",
      "kind": "benchmark",
      "use_case_id": "demolition-robots",
      "use_case_ids": [
        "demolition-robots"
      ],
      "provider_id": null,
      "description": "Brokk 70 remote demolition robot rental (Calgary): $520/day, $2,600/week",
      "low": 520,
      "high": 2600,
      "currency": "CAD",
      "unit": "per day / per week",
      "region": "CA",
      "source_url": "https://canwestconcrete.com/equipment-rentals/demolition-robots-rentals-calgary/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:7168c6faca6374bf5d82b6319fddab2c21141bedfa7dd1ef3e29dff7735e7522",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 372,
        "high": 1858,
        "fx": {
          "pair": "CAD/USD",
          "rate": 0.714541,
          "cad_per_usd": 1.3995,
          "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_c137f314aab4",
      "series_key": "ps_856260679c5ccd96",
      "kind": "provider_published",
      "use_case_id": "demolition-robots",
      "use_case_ids": [
        "demolition-robots"
      ],
      "provider_id": "canwest-concrete-cutting-coring",
      "description": "Brokk 70 demolition robot rental: 4-hour $416, day $520, week $2,600",
      "low": 416,
      "high": 2600,
      "currency": "CAD",
      "unit": "per rental period",
      "region": "",
      "source_url": "https://canwestconcrete.com/equipment-rentals/demolition-robots-rentals-calgary/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:c137f314aab4df3ed43ed0c1b23214ba1ab9c3daeb9adba6073ac36d4dbbe1aa",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 297,
        "high": 1858,
        "fx": {
          "pair": "CAD/USD",
          "rate": 0.714541,
          "cad_per_usd": 1.3995,
          "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_c83d0c4d2e1dc8c0",
      "kind": "benchmark",
      "use_case_id": "demolition-robots",
      "provider_id": null,
      "description": "Brokk 70 remote demolition robot rental (Calgary): $520/day, $2,600/week",
      "currency": "CAD",
      "unit": "per day / per week",
      "region": "CA",
      "source_url": "https://canwestconcrete.com/equipment-rentals/demolition-robots-rentals-calgary/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 520,
        "high": 2600,
        "as_of": "2026-10",
        "id": "po_20261025_7168c6faca63"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_856260679c5ccd96",
      "kind": "provider_published",
      "use_case_id": "demolition-robots",
      "provider_id": "canwest-concrete-cutting-coring",
      "description": "Brokk 70 demolition robot rental: 4-hour $416, day $520, week $2,600",
      "currency": "CAD",
      "unit": "per rental period",
      "region": "",
      "source_url": "https://canwestconcrete.com/equipment-rentals/demolition-robots-rentals-calgary/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 416,
        "high": 2600,
        "as_of": "2026-10",
        "id": "po_20261025_c137f314aab4"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "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": 2,
    "limit": 200,
    "offset": 0,
    "returned": 2,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}