{
  "declared_links": {
    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "Geologists have discovered two large water sources beneath China’s largest desert, potentially offering the northwestern region a vital new tap for sand-control projects and agriculture. The desert region has drawn attention for extensive afforestation and anti-desertification efforts taking place around its edges unde",
  "desk": "politics",
  "event_id": "event-1952e349a6aef800bac482a0",
  "evidence_groups": [
    {
      "group_id": "south-china-morning-post-editorial",
      "roles": [
        "media"
      ],
      "source_ids": [
        "scmp-china"
      ]
    }
  ],
  "evidence_refs": [
    {
      "independence_group": "south-china-morning-post-editorial",
      "item_id": "item-d28089fd7fc86a32d65062f5",
      "published_at": "2026-09-16T10:00:08Z",
      "role": "media",
      "source_id": "scmp-china",
      "source_name": "South China Morning Post — China",
      "title": "Geologists find unexpectedly large water sources in Xinjiang beneath China’s largest desert",
      "url": "https://www.scmp.com/news/china/science/article/3367668/geologists-find-unexpectedly-large-water-sources-xinjiang-beneath-chinas-largest-desert",
      "version_id": "itemv-94bbf432e86059d706091ecd"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "Geologists find unexpectedly large water sources in Xinjiang beneath China’s largest desert",
  "lead": false,
  "lead_reason": "Current single-source metadata is retained but not promoted as a lead.",
  "limitations": [
    "Palimpsest retained only feed title, canonical link, time, and a bounded plain-text excerpt; it did not fetch the article body.",
    "The evidence-strength label describes source structure, not truth, intent, impact, or causation.",
    "Declared instrument links are topical pointers until a separate scan or economic observation is joined by time and method.",
    "Title-similarity clustering can miss differently worded or cross-language accounts and can join closely worded updates.",
    "This dossier currently contains one independent evidence group and remains explicitly attributed."
  ],
  "mutation": {
    "kind": "unchanged",
    "previous_version_id": "eventv-00dc05ef411161fa8865164b"
  },
  "published_at": "2026-09-16T10:00:08Z",
  "reported_facts": [
    {
      "attribution": "South China Morning Post — China",
      "evidence_item_id": "item-d28089fd7fc86a32d65062f5",
      "published_at": "2026-09-16T10:00:08Z",
      "statement": "South China Morning Post — China published “Geologists find unexpectedly large water sources in Xinjiang beneath China’s largest desert”."
    }
  ],
  "topics": [
    "politics"
  ],
  "updated_at": "2026-09-16T10:00:08Z",
  "url": "https://palimpsest.info/news/wire/event-1952e349a6aef800bac482a0/",
  "version_id": "eventv-00dc05ef411161fa8865164b"
}
