{
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    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "今天(25日)，第三届中美1.5轨对话在北京举行。来自中方相关部委、地方政府、智库以及美国亚洲协会等中美代表，将围绕增进政治互信、拓展经贸合作，探索人工智能与科技合作等议题深入探讨。创立于2023年的中美1.5轨对话，介于官方正式外交(一轨)和纯民间(二轨)对话之间，是中美政党、战略界、工商界、学术界、民间重要的沟通交流平台，曾为加强两国政治、经贸、科技、人文等领域交流合作提出诸多具体建议。",
  "desk": "politics",
  "event_id": "event-c87744d29c2dfe96e683aca3",
  "evidence_groups": [
    {
      "group_id": "china-news-service-state-media",
      "roles": [
        "media"
      ],
      "source_ids": [
        "china-news-service-politics"
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  "evidence_refs": [
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      "independence_group": "china-news-service-state-media",
      "item_id": "item-6c9314f520d2f609f26fda3e",
      "published_at": "2026-08-25T01:10:21Z",
      "role": "media",
      "source_id": "china-news-service-politics",
      "source_name": "China News Service",
      "title": "中美1.5轨对话今天在北京举行",
      "url": "https://www.chinanews.com.cn/gn/2026/08-25/10683558.shtml",
      "version_id": "itemv-2a2d30ad056b9300ce597668"
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  "evidence_strength": "single-source",
  "headline": "中美1.5轨对话今天在北京举行",
  "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": "new",
    "previous_version_id": null
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  "published_at": "2026-08-25T01:10:21Z",
  "reported_facts": [
    {
      "attribution": "China News Service",
      "evidence_item_id": "item-6c9314f520d2f609f26fda3e",
      "published_at": "2026-08-25T01:10:21Z",
      "statement": "China News Service published “中美1.5轨对话今天在北京举行”."
    }
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  "topics": [
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  "updated_at": "2026-08-25T01:10:21Z",
  "url": "https://palimpsest.info/news/wire/event-c87744d29c2dfe96e683aca3/",
  "version_id": "eventv-4c610ccedc2da684b0c3d77f"
}