{
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    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "加拿大政府星期二正式对总值276亿加元、约200亿美元的美国进口商品实施报复性关税，税率介于15%到50%，涵盖钢铁、铝材以及奶酪等乳制品。",
  "desk": "politics",
  "event_id": "event-dc086f6143294cb80eceeadb",
  "evidence_groups": [
    {
      "group_id": "france-medias-monde-rfi-editorial",
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      "published_at": "2026-09-08T08:39:02Z",
      "role": "media",
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      "source_name": "RFI",
      "title": "贸易战升级 加拿大对美报复性关税生效",
      "url": "https://www.rfi.fr/cn/%E7%BE%8E%E6%B4%B2/20260908-%E8%B4%B8%E6%98%93%E6%88%98%E5%8D%87%E7%BA%A7-%E5%8A%A0%E6%8B%BF%E5%A4%A7%E5%AF%B9%E7%BE%8E%E6%8A%A5%E5%A4%8D%E6%80%A7%E5%85%B3%E7%A8%8E%E7%94%9F%E6%95%88",
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  "headline": "贸易战升级 加拿大对美报复性关税生效",
  "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-4a4962c6baecbb90a17207f6"
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  "published_at": "2026-09-08T08:39:02Z",
  "reported_facts": [
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      "evidence_item_id": "item-600af3dbc7f2eeacdf1f2417",
      "published_at": "2026-09-08T08:39:02Z",
      "statement": "RFI published “贸易战升级 加拿大对美报复性关税生效”."
    }
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    "government",
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  "updated_at": "2026-09-08T08:39:02Z",
  "url": "https://palimpsest.info/news/wire/event-dc086f6143294cb80eceeadb/",
  "version_id": "eventv-4a4962c6baecbb90a17207f6"
}