{
  "declared_links": {
    "economic_signal_ids": [
      "believability",
      "china-econ",
      "cny-fix-gap",
      "data-darkness",
      "stock-connect"
    ],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "中新网桂林11月10日电(邓竣缤)11月10日，桂林漓佳金属有限责任公司(以下简称“桂林漓佳公司”)与北京科技大学谢建新院士团队、中南大学在桂林签署合作协议，并举行16000吨铜基新材料生产线技术升级改造项目竣工仪式。这场“老国企+院士团队”合作，聚焦高端铜基材料关键工艺开展产学研协同攻关。",
  "desk": "technology",
  "event_id": "event-cc15677ba3f0cfed8310877b",
  "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-d151f4755306105e59c37857",
      "published_at": "2026-11-10T09:29:13Z",
      "role": "media",
      "source_id": "china-news-service-finance",
      "source_name": "China News Service",
      "title": "桂林老国企牵手院士团队 攻关高端铜基材料关键工艺",
      "url": "https://www.chinanews.com.cn/cj/2026/11-10/10729558.shtml",
      "version_id": "itemv-edd9f4c6b104e349e43f5779"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "桂林老国企牵手院士团队 攻关高端铜基材料关键工艺",
  "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-f3897d8c27ec69b903d7fc14"
  },
  "published_at": "2026-11-10T09:29:13Z",
  "reported_facts": [
    {
      "attribution": "China News Service",
      "evidence_item_id": "item-d151f4755306105e59c37857",
      "published_at": "2026-11-10T09:29:13Z",
      "statement": "China News Service published “桂林老国企牵手院士团队 攻关高端铜基材料关键工艺”."
    }
  ],
  "topics": [
    "economy",
    "technology"
  ],
  "updated_at": "2026-11-10T09:29:13Z",
  "url": "https://palimpsest.info/news/wire/event-cc15677ba3f0cfed8310877b/",
  "version_id": "eventv-f3897d8c27ec69b903d7fc14"
}