{
  "declared_links": {
    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "美日“利剑 2027”（Keen Sword 2027）多边演习于10月19日星期一在日本石垣岛举行开幕仪式。本次演习集结5.7万名美、日官兵，规模创下历年之最。演习期间，日本将首次在其熊本县的基地之外，部署射程达1000公里的“25式”反舰导弹。而美方也将在距离台湾仅110公里与那国岛部署一套先进的反舰导弹系统及一套防空系统，引发中国高度关注。",
  "desk": "politics",
  "event_id": "event-6b78944f64642b8a4e14112c",
  "evidence_groups": [
    {
      "group_id": "voice-of-america-chinese-editorial",
      "roles": [
        "media"
      ],
      "source_ids": [
        "voa-chinese"
      ]
    }
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  "evidence_refs": [
    {
      "independence_group": "voice-of-america-chinese-editorial",
      "item_id": "item-5aaf68c1ff7b42786921c8e0",
      "published_at": "2026-10-20T03:00:00Z",
      "role": "media",
      "source_id": "voa-chinese",
      "source_name": "Voice of America Chinese",
      "title": "美日“利剑 2027”演习 将部署两款先进反舰导弹系统",
      "url": "https://www.voachinese.com/a/keen-sword-20261019/8213166.html",
      "version_id": "itemv-1140946c0bfe960c9fe6e8fb"
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  "evidence_strength": "single-source",
  "headline": "美日“利剑 2027”演习 将部署两款先进反舰导弹系统",
  "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-533bd60f09a236a761c29888"
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  "published_at": "2026-10-20T03:00:00Z",
  "reported_facts": [
    {
      "attribution": "Voice of America Chinese",
      "evidence_item_id": "item-5aaf68c1ff7b42786921c8e0",
      "published_at": "2026-10-20T03:00:00Z",
      "statement": "Voice of America Chinese published “美日“利剑 2027”演习 将部署两款先进反舰导弹系统”."
    }
  ],
  "topics": [
    "politics",
    "rights"
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  "updated_at": "2026-10-20T03:00:00Z",
  "url": "https://palimpsest.info/news/wire/event-6b78944f64642b8a4e14112c/",
  "version_id": "eventv-533bd60f09a236a761c29888"
}