{
  "declared_links": {
    "economic_signal_ids": [
      "believability",
      "china-econ",
      "cny-fix-gap",
      "data-darkness",
      "stock-connect"
    ],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "记者今天(1日)从自然资源部获悉，我国新一轮找矿突破战略行动再获标志性成果，在安徽宣城市茶亭地区铜金矿勘查取得重大突破，有望在华东地区新形成大型铜金资源基地。",
  "desk": "rights",
  "event_id": "event-f7f3d3e782ada815547134df",
  "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-6416ee05515e136c1d75df6c",
      "published_at": "2026-09-01T00:06:22Z",
      "role": "media",
      "source_id": "china-news-service-finance",
      "source_name": "China News Service",
      "title": "新一轮找矿行动成果+1 我国铜金矿勘查再获重大突破",
      "url": "https://www.chinanews.com.cn/cj/2026/09-01/10687614.shtml",
      "version_id": "itemv-689605a9d89050d2e8018719"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "新一轮找矿行动成果+1 我国铜金矿勘查再获重大突破",
  "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-55a56d9786b2c35d2831f950"
  },
  "published_at": "2026-09-01T00:06:22Z",
  "reported_facts": [
    {
      "attribution": "China News Service",
      "evidence_item_id": "item-6416ee05515e136c1d75df6c",
      "published_at": "2026-09-01T00:06:22Z",
      "statement": "China News Service published “新一轮找矿行动成果+1 我国铜金矿勘查再获重大突破”."
    }
  ],
  "topics": [
    "economy",
    "rights",
    "technology"
  ],
  "updated_at": "2026-09-01T00:06:22Z",
  "url": "https://palimpsest.info/news/wire/event-f7f3d3e782ada815547134df/",
  "version_id": "eventv-55a56d9786b2c35d2831f950"
}