{
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    "relation": "topic-surface-only",
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  "dek": "Canada on Tuesday announced counter-tariffs on US goods ranging between 15 and 50 percent, intensifying the trade war between the historically close allies. Ottawa's retaliation will take effect September 8, a timeframe earlier outlined by Prime Minister Mark Carney after US President Donald Trump's 50-percent duties c",
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      "item_id": "item-977041bbccac9a869d5b8a06",
      "published_at": "2026-08-25T22:38:34Z",
      "role": "media",
      "source_id": "rthk-finance",
      "source_name": "Radio Television Hong Kong",
      "title": "Canada slaps counter tariffs of up to 50pc on US",
      "url": "https://news.rthk.hk/rthk/en/component/k2/1867516-20260826.htm",
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  "headline": "Canada slaps counter tariffs of up to 50pc on US",
  "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.",
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  "mutation": {
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  "published_at": "2026-08-25T22:38:34Z",
  "reported_facts": [
    {
      "attribution": "Radio Television Hong Kong",
      "evidence_item_id": "item-977041bbccac9a869d5b8a06",
      "published_at": "2026-08-25T22:38:34Z",
      "statement": "Radio Television Hong Kong published “Canada slaps counter tariffs of up to 50pc on US”."
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  "url": "https://palimpsest.info/news/wire/event-c00dba6c989a21098f1dd9c2/",
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}