{
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  "dek": "China’s national rail operator has added a new service category for high-speed trains running above 350km/h to accommodate faster routes in the future, signalling the impending commercial debut of its newest and fastest train model and potentially marking another milestone for the world’s fastest train fleet. China Sta",
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      "role": "media",
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      "source_name": "South China Morning Post — China Economy",
      "title": "China’s 400km/h trains getting closer to debut, numbering-system change hints",
      "url": "https://www.scmp.com/economy/china-economy/article/3371156/chinas-400km/h-trains-getting-closer-debut-numbering-system-change-hints",
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  "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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      "attribution": "South China Morning Post — China Economy",
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