{
  "declared_links": {
    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "美国国土安全部发布通告称，使用深度求索可能导致敏感数据流向中国，因此禁止联邦政府部门使用相关产品。中国外交部回应称，反对将经贸政治化。",
  "desk": "politics",
  "event_id": "event-815c8e9be6f38a79c6fed10c",
  "evidence_groups": [
    {
      "group_id": "deutsche-welle-chinese-editorial",
      "roles": [
        "media"
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      "source_ids": [
        "dw-chinese"
      ]
    }
  ],
  "evidence_refs": [
    {
      "independence_group": "deutsche-welle-chinese-editorial",
      "item_id": "item-0bcb0f217e89d6928c0ec4f3",
      "published_at": "2026-10-20T14:19:00Z",
      "role": "media",
      "source_id": "dw-chinese",
      "source_name": "Deutsche Welle",
      "title": "美国禁止联邦机构使用“深度求索”",
      "url": "https://www.dw.com/zh/美国禁止联邦机构使用-深度求索/a-79715294?maca=chi-rss-chi-all-1127-rdf",
      "version_id": "itemv-7212a6c431d7694c9542e406"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "美国禁止联邦机构使用“深度求索”",
  "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-842489f6acff30bbba36a573"
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  "published_at": "2026-10-20T14:19:00Z",
  "reported_facts": [
    {
      "attribution": "Deutsche Welle",
      "evidence_item_id": "item-0bcb0f217e89d6928c0ec4f3",
      "published_at": "2026-10-20T14:19:00Z",
      "statement": "Deutsche Welle published “美国禁止联邦机构使用“深度求索””."
    }
  ],
  "topics": [
    "economy",
    "government",
    "politics",
    "rights"
  ],
  "updated_at": "2026-10-20T14:19:00Z",
  "url": "https://palimpsest.info/news/wire/event-815c8e9be6f38a79c6fed10c/",
  "version_id": "eventv-842489f6acff30bbba36a573"
}