{
  "declared_links": {
    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "事發河谷上游已形成兩個堰塞湖。與此同時，原本散佈在喜馬拉雅山區的冰川湖，在災區內有10座被標記為高風險，專家形容它們是「定時炸彈」。",
  "desk": "politics",
  "event_id": "event-eb1e77f063c6f0fe8e35f6d6",
  "evidence_groups": [
    {
      "group_id": "bbc-chinese-editorial",
      "roles": [
        "media"
      ],
      "source_ids": [
        "bbc-chinese"
      ]
    }
  ],
  "evidence_refs": [
    {
      "independence_group": "bbc-chinese-editorial",
      "item_id": "item-7341e5a179bbd16fe8c5fd8d",
      "published_at": "2026-09-02T00:01:34Z",
      "role": "media",
      "source_id": "bbc-chinese",
      "source_name": "BBC News Chinese",
      "title": "尼泊爾—西藏泥石流：堰塞湖和冰湖是下一個「定時炸彈」？",
      "url": "https://www.bbc.com/zhongwen/articles/cz6zpzwwxlzo/trad?at_campaign=rss&at_medium=RSS",
      "version_id": "itemv-87489e389d0f65ab59c9c88f"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "尼泊爾—西藏泥石流：堰塞湖和冰湖是下一個「定時炸彈」？",
  "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-f7f65f426f05f75a383f84b6"
  },
  "published_at": "2026-09-02T00:01:34Z",
  "reported_facts": [
    {
      "attribution": "BBC News Chinese",
      "evidence_item_id": "item-7341e5a179bbd16fe8c5fd8d",
      "published_at": "2026-09-02T00:01:34Z",
      "statement": "BBC News Chinese published “尼泊爾—西藏泥石流：堰塞湖和冰湖是下一個「定時炸彈」？”."
    }
  ],
  "topics": [
    "politics",
    "rights"
  ],
  "updated_at": "2026-09-02T00:01:34Z",
  "url": "https://palimpsest.info/news/wire/event-eb1e77f063c6f0fe8e35f6d6/",
  "version_id": "eventv-f7f65f426f05f75a383f84b6"
}