{
  "declared_links": {
    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "法国文化部周四宣布，为纪念摄影技术诞生两百周年，法国发明家约瑟夫·尼塞福尔·涅普斯（Nicéphore Niépce）拍摄的现存史上第一张照片将在法国首次展出。",
  "desk": "technology",
  "event_id": "event-14be972dfe8e3c7bbba85a80",
  "evidence_groups": [
    {
      "group_id": "france-medias-monde-rfi-editorial",
      "roles": [
        "media"
      ],
      "source_ids": [
        "rfi-chinese"
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  ],
  "evidence_refs": [
    {
      "independence_group": "france-medias-monde-rfi-editorial",
      "item_id": "item-e590770be35fcc14a1154f01",
      "published_at": "2026-09-03T20:05:18Z",
      "role": "media",
      "source_id": "rfi-chinese",
      "source_name": "RFI",
      "title": "法首次展出1827年拍摄出现存的最早照片",
      "url": "https://www.rfi.fr/cn/%E6%AC%A7%E6%B4%B2/20260903-%E6%B3%95%E9%A6%96%E6%AC%A1%E5%B1%95%E5%87%BA1827%E5%B9%B4%E6%8B%8D%E6%91%84%E5%87%BA%E7%8E%B0%E5%AD%98%E7%9A%84%E6%9C%80%E6%97%A9%E7%85%A7%E7%89%87",
      "version_id": "itemv-962a89bec4789560a2f5b259"
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  ],
  "evidence_strength": "single-source",
  "headline": "法首次展出1827年拍摄出现存的最早照片",
  "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-e03ec6f75ce0d722e118f2d8"
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  "published_at": "2026-09-03T20:05:18Z",
  "reported_facts": [
    {
      "attribution": "RFI",
      "evidence_item_id": "item-e590770be35fcc14a1154f01",
      "published_at": "2026-09-03T20:05:18Z",
      "statement": "RFI published “法首次展出1827年拍摄出现存的最早照片”."
    }
  ],
  "topics": [
    "economy",
    "politics",
    "rights",
    "technology"
  ],
  "updated_at": "2026-09-03T20:05:18Z",
  "url": "https://palimpsest.info/news/wire/event-14be972dfe8e3c7bbba85a80/",
  "version_id": "eventv-e03ec6f75ce0d722e118f2d8"
}