{
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    "relation": "topic-surface-only",
    "scan_signal_ids": []
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  "dek": "中新网10月20日电 据“南海舰队”微信公众号消息，10月20日凌晨，美“查尔斯顿”号濒海战斗舰未经中国政府允许，冲闯中国南沙群岛仙宾礁附近海域，中国人民解放军南部战区海军组织兵力依法依规跟踪监视。中国对南沙群岛及其附近海域拥有无可争辩的主权，美方行动侵犯中国主权权益，威胁海上安全，不利于地区和平稳定，美方应立即停止相关活动。战区部队时刻保持高度戒备，捍卫国家主权安全，维护地区和平稳定。",
  "desk": "politics",
  "event_id": "event-12295e413413e4a338209b12",
  "evidence_groups": [
    {
      "group_id": "china-news-service-state-media",
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        "media"
      ],
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      "role": "media",
      "source_id": "china-news-service-politics",
      "source_name": "China News Service",
      "title": "美舰冲闯中国南沙群岛仙宾礁附近海域 南部战区回应",
      "url": "https://www.chinanews.com.cn/gn/2026/10-20/10717717.shtml",
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      "role": "media",
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      "source_name": "China News Service",
      "title": "解放军南部战区：美军舰冲闯中国南沙群岛仙宾礁附近海域",
      "url": "https://www.chinanews.com.cn/gn/2026/10-20/10717762.shtml",
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  "evidence_strength": "single-source",
  "headline": "美舰冲闯中国南沙群岛仙宾礁附近海域 南部战区回应",
  "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."
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  "mutation": {
    "kind": "unchanged",
    "previous_version_id": "eventv-667c8e4cd7cce495421b6955"
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  "published_at": "2026-10-20T04:57:31Z",
  "reported_facts": [
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      "evidence_item_id": "item-184f61d042f5292860477cba",
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      "statement": "China News Service published “美舰冲闯中国南沙群岛仙宾礁附近海域 南部战区回应”."
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      "published_at": "2026-10-20T06:14:17Z",
      "statement": "China News Service published “解放军南部战区：美军舰冲闯中国南沙群岛仙宾礁附近海域”."
    }
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  "topics": [
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  "updated_at": "2026-10-20T06:14:17Z",
  "url": "https://palimpsest.info/news/wire/event-12295e413413e4a338209b12/",
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