{
  "declared_links": {
    "economic_signal_ids": [
      "believability",
      "china-econ",
      "cny-fix-gap",
      "data-darkness",
      "stock-connect"
    ],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "中新网大庆9月1日电 (裴宇)9月1日，记者从大庆油田采油五厂获悉，该厂在聚驱开发精准调控技术攻关上取得新进展，技术团队建成特殊地质条件油层停注聚时机预测系统。",
  "desk": "rights",
  "event_id": "event-00a254b2ed11e8cc34520bf6",
  "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-fad59294d212deba9c33b133",
      "published_at": "2026-09-01T03:15:07Z",
      "role": "media",
      "source_id": "china-news-service-finance",
      "source_name": "China News Service",
      "title": "大庆油田研发个性化分层停聚技术 提高采收率 1.24 个百分点",
      "url": "https://www.chinanews.com.cn/cj/2026/09-01/10687745.shtml",
      "version_id": "itemv-ce843448a2626686b30f7a13"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "大庆油田研发个性化分层停聚技术 提高采收率 1.24 个百分点",
  "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-4d51b36bc67c4a0d5418b383"
  },
  "published_at": "2026-09-01T03:15:07Z",
  "reported_facts": [
    {
      "attribution": "China News Service",
      "evidence_item_id": "item-fad59294d212deba9c33b133",
      "published_at": "2026-09-01T03:15:07Z",
      "statement": "China News Service published “大庆油田研发个性化分层停聚技术 提高采收率 1.24 个百分点”."
    }
  ],
  "topics": [
    "economy",
    "rights",
    "technology"
  ],
  "updated_at": "2026-09-01T03:15:07Z",
  "url": "https://palimpsest.info/news/wire/event-00a254b2ed11e8cc34520bf6/",
  "version_id": "eventv-4d51b36bc67c4a0d5418b383"
}