{
  "total": 3,
  "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_74e6480ac7f2",
      "series_key": "ps_178dd20b8d7e1ea5",
      "kind": "provider_published",
      "use_case_id": "tree-planting-drone",
      "use_case_ids": [
        "tree-planting-drone"
      ],
      "provider_id": "skyseed",
      "description": "Drone sowing of coated seed for reforestation, starting price (varies with site, density, seed)",
      "low": 3500,
      "high": null,
      "currency": "EUR",
      "unit": "per hectare",
      "region": "DE",
      "source_url": "https://skyseed.eco/home",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:74e6480ac7f20844827d822264b48916b702eabebd86473cd69466ec34849eef",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 3918,
        "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_a9fe04428df8",
      "series_key": "ps_0a5ecb896c6085ed",
      "kind": "provider_published",
      "use_case_id": "tree-planting-drone",
      "use_case_ids": [
        "tree-planting-drone"
      ],
      "provider_id": "mycelium-reforestation",
      "description": "Drone reforestation: analysis and planting, excl. seed cost",
      "low": 1000,
      "high": null,
      "currency": "EUR",
      "unit": "per hectare",
      "region": "FR",
      "source_url": "https://www.mycelium-reforestation.com/offres",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:a9fe04428df8f7b8897f98b94dfb292fd732ad57a7da7ad202f079aabbf7f883",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 1119,
        "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_ab6b7a1499a5",
      "series_key": "ps_6d223d240b0a53c4",
      "kind": "provider_published",
      "use_case_id": "tree-planting-drone",
      "use_case_ids": [
        "tree-planting-drone"
      ],
      "provider_id": "mycelium-reforestation",
      "description": "Post-reforestation plantation monitoring",
      "low": 50,
      "high": null,
      "currency": "EUR",
      "unit": "per hectare",
      "region": "FR",
      "source_url": "https://www.mycelium-reforestation.com/offres",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:ab6b7a1499a5dd6947aaaf908710cb90553e457ef64441cf8e3d787035626fbb",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 55.96,
        "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."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_178dd20b8d7e1ea5",
      "kind": "provider_published",
      "use_case_id": "tree-planting-drone",
      "provider_id": "skyseed",
      "description": "Drone sowing of coated seed for reforestation, starting price (varies with site, density, seed)",
      "currency": "EUR",
      "unit": "per hectare",
      "region": "DE",
      "source_url": "https://skyseed.eco/home",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 3500,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_74e6480ac7f2"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_0a5ecb896c6085ed",
      "kind": "provider_published",
      "use_case_id": "tree-planting-drone",
      "provider_id": "mycelium-reforestation",
      "description": "Drone reforestation: analysis and planting, excl. seed cost",
      "currency": "EUR",
      "unit": "per hectare",
      "region": "FR",
      "source_url": "https://www.mycelium-reforestation.com/offres",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 1000,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_a9fe04428df8"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_6d223d240b0a53c4",
      "kind": "provider_published",
      "use_case_id": "tree-planting-drone",
      "provider_id": "mycelium-reforestation",
      "description": "Post-reforestation plantation monitoring",
      "currency": "EUR",
      "unit": "per hectare",
      "region": "FR",
      "source_url": "https://www.mycelium-reforestation.com/offres",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 50,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_ab6b7a1499a5"
      },
      "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": 3,
    "limit": 200,
    "offset": 0,
    "returned": 3,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}