{
  "declared_links": {
    "economic_signal_ids": [
      "believability",
      "china-econ",
      "cny-fix-gap",
      "data-darkness",
      "stock-connect"
    ],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "中新网北京8月30日电 2026北京高端科学仪器与传感器大会29日在北京怀柔开幕。大会云集全球科学仪器与传感器领域的顶尖院士专家、知名高校及科研机构、行业领军企业等，围绕前沿技术突破、创新成果转化、产业生态构建及行业热点趋势等核心议题展开深入交流。",
  "desk": "technology",
  "event_id": "event-c849d54c961a6c6fa996f7d7",
  "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-0b026048b803634b54a7e0c1",
      "published_at": "2026-08-30T02:07:16Z",
      "role": "media",
      "source_id": "china-news-service-finance",
      "source_name": "China News Service",
      "title": "北京高端科学仪器与传感器大会举办 发布采购额约4亿元机遇清单",
      "url": "https://www.chinanews.com.cn/cj/2026/08-30/10686668.shtml",
      "version_id": "itemv-f2d64e03f580b0236a031357"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "北京高端科学仪器与传感器大会举办 发布采购额约4亿元机遇清单",
  "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-0173216280280bba14a3fdaa"
  },
  "published_at": "2026-08-30T02:07:16Z",
  "reported_facts": [
    {
      "attribution": "China News Service",
      "evidence_item_id": "item-0b026048b803634b54a7e0c1",
      "published_at": "2026-08-30T02:07:16Z",
      "statement": "China News Service published “北京高端科学仪器与传感器大会举办 发布采购额约4亿元机遇清单”."
    }
  ],
  "topics": [
    "economy",
    "technology"
  ],
  "updated_at": "2026-08-30T02:07:16Z",
  "url": "https://palimpsest.info/news/wire/event-c849d54c961a6c6fa996f7d7/",
  "version_id": "eventv-0173216280280bba14a3fdaa"
}