{
  "total": 4,
  "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_1f3bc708fa62",
      "series_key": "ps_40606c8a55e6a30e",
      "kind": "provider_published",
      "use_case_id": "pet-care-robot",
      "use_case_ids": [
        "pet-care-robot"
      ],
      "provider_id": "whisker-litter-robot",
      "description": "Litter-Robot 4 self-cleaning litter box, Whisker US store (\"As low as\" price shown on the product page)",
      "low": 699,
      "high": null,
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.litter-robot.com/litter-robot-4.html",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T15:37:55.713Z",
      "content_hash": "sha256:1f3bc708fa622d4b5987f5798c6803096931196489fd4831959fc3e7f354bac9",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 699,
        "high": null,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_2fda804fe318",
      "series_key": "ps_0e147642c22c14cb",
      "kind": "benchmark",
      "use_case_id": "pet-care-robot",
      "use_case_ids": [
        "pet-care-robot"
      ],
      "provider_id": null,
      "description": "Self-cleaning litter box robot (Litter-Robot 4), maker's US store",
      "low": 699,
      "high": null,
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.litter-robot.com/litter-robot-4.html",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T15:37:55.713Z",
      "content_hash": "sha256:2fda804fe318c20abae7580ca1dabab843a578a92e49ec2a1a8b55cf9496be44",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 699,
        "high": null,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_05d88890738c",
      "series_key": "ps_0008a8e981eb2f4f",
      "kind": "benchmark",
      "use_case_id": "pet-care-robot",
      "use_case_ids": [
        "pet-care-robot"
      ],
      "provider_id": null,
      "description": "PETKIT Purobot Max 3 self-cleaning litter box, official US store (sale price; list $499.99)",
      "low": 399.99,
      "high": 399.99,
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.petkit.com/products/purobot-max-3-automatic-cat-litter-box",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T19:21:13.434Z",
      "content_hash": "sha256:05d88890738c1ef4f8964d028cc7b658255cf8d42b2516141e0b9a354c40c529",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 400,
        "high": 400,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_9197cd0c597e",
      "series_key": "ps_02584b63bb37af00",
      "kind": "benchmark",
      "use_case_id": "pet-care-robot",
      "use_case_ids": [
        "pet-care-robot"
      ],
      "provider_id": null,
      "description": "Enabot ROLA PetPal rolling pet-companion robot with treat dispenser, official store: $179–$219 depending on bundle (sale prices; list $199–$299)",
      "low": 179,
      "high": 219,
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://store.enabot.com/products/rola-petpal-robot-pet-companion",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T19:21:13.434Z",
      "content_hash": "sha256:9197cd0c597e73bf59f9229a3f7871d074e6cc83871fe8ba30a87fa7aed8ebe8",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 179,
        "high": 219,
        "note": "Already in target currency; no conversion."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_40606c8a55e6a30e",
      "kind": "provider_published",
      "use_case_id": "pet-care-robot",
      "provider_id": "whisker-litter-robot",
      "description": "Litter-Robot 4 self-cleaning litter box, Whisker US store (\"As low as\" price shown on the product page)",
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.litter-robot.com/litter-robot-4.html",
      "observations": 1,
      "first_observed_at": "2026-10-25T15:37:55.713Z",
      "last_observed_at": "2026-10-25T15:37:55.713Z",
      "current": true,
      "latest": {
        "low": 699,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_1f3bc708fa62"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_0e147642c22c14cb",
      "kind": "benchmark",
      "use_case_id": "pet-care-robot",
      "provider_id": null,
      "description": "Self-cleaning litter box robot (Litter-Robot 4), maker's US store",
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.litter-robot.com/litter-robot-4.html",
      "observations": 1,
      "first_observed_at": "2026-10-25T15:37:55.713Z",
      "last_observed_at": "2026-10-25T15:37:55.713Z",
      "current": true,
      "latest": {
        "low": 699,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_2fda804fe318"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_0008a8e981eb2f4f",
      "kind": "benchmark",
      "use_case_id": "pet-care-robot",
      "provider_id": null,
      "description": "PETKIT Purobot Max 3 self-cleaning litter box, official US store (sale price; list $499.99)",
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.petkit.com/products/purobot-max-3-automatic-cat-litter-box",
      "observations": 1,
      "first_observed_at": "2026-10-25T19:21:13.434Z",
      "last_observed_at": "2026-10-25T19:21:13.434Z",
      "current": true,
      "latest": {
        "low": 399.99,
        "high": 399.99,
        "as_of": "2026-10-25",
        "id": "po_20261025_05d88890738c"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_02584b63bb37af00",
      "kind": "benchmark",
      "use_case_id": "pet-care-robot",
      "provider_id": null,
      "description": "Enabot ROLA PetPal rolling pet-companion robot with treat dispenser, official store: $179–$219 depending on bundle (sale prices; list $199–$299)",
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://store.enabot.com/products/rola-petpal-robot-pet-companion",
      "observations": 1,
      "first_observed_at": "2026-10-25T19:21:13.434Z",
      "last_observed_at": "2026-10-25T19:21:13.434Z",
      "current": true,
      "latest": {
        "low": 179,
        "high": 219,
        "as_of": "2026-10-25",
        "id": "po_20261025_9197cd0c597e"
      },
      "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": 4,
    "limit": 200,
    "offset": 0,
    "returned": 4,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}