{
  "declared_links": {
    "economic_signal_ids": [
      "believability",
      "china-econ",
      "cny-fix-gap",
      "data-darkness",
      "stock-connect"
    ],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "中新网甘肃定西9月16日电 (戴文昌)16日，2026年中国·定西马铃薯大会启幕。甘肃省定西市代市长李生潜表示，历经200余年深耕发展，定西马铃薯实现从“救命薯”到“脱贫薯”“致富薯”“振兴薯”的华丽蝶变，如今已成长为支撑地方发展、带动民众增收、联通国内外市场的支柱产业。",
  "desk": "economy",
  "event_id": "event-6cc1b9e4b86732863da619a1",
  "evidence_groups": [
    {
      "group_id": "china-news-service-state-media",
      "roles": [
        "media"
      ],
      "source_ids": [
        "china-news-service-finance"
      ]
    }
  ],
  "evidence_refs": [
    {
      "independence_group": "china-news-service-state-media",
      "item_id": "item-dbf7c19dc14eef28b55ea157",
      "published_at": "2026-09-16T12:45:37Z",
      "role": "media",
      "source_id": "china-news-service-finance",
      "source_name": "China News Service",
      "title": "甘肃定西小土豆“蝶变”升级链全球",
      "url": "https://www.chinanews.com.cn/cj/2026/09-16/10697832.shtml",
      "version_id": "itemv-00fca26fc6298d2874885fc9"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "甘肃定西小土豆“蝶变”升级链全球",
  "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-64a92a3109c348c5093bd5fe"
  },
  "published_at": "2026-09-16T12:45:37Z",
  "reported_facts": [
    {
      "attribution": "China News Service",
      "evidence_item_id": "item-dbf7c19dc14eef28b55ea157",
      "published_at": "2026-09-16T12:45:37Z",
      "statement": "China News Service published “甘肃定西小土豆“蝶变”升级链全球”."
    }
  ],
  "topics": [
    "economy",
    "technology"
  ],
  "updated_at": "2026-09-16T12:45:37Z",
  "url": "https://palimpsest.info/news/wire/event-6cc1b9e4b86732863da619a1/",
  "version_id": "eventv-64a92a3109c348c5093bd5fe"
}