{
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    "relation": "topic-surface-only",
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  "dek": "2026年，法国迎来人类历史上第一张已知永久性照片诞生200周年纪念。这张《勒格拉庄园窗外景色》（Point de vue du Gras）照片由尼塞福尔·涅普斯（Nicéphore Niépce）在圣卢普－德瓦伦（Saint-Loup-de-Varennes）拍摄成照。作为摄影开创性发明的见证，标志着一场技术、文化与纪实革命的开端，深刻改变了人类认识和记录世界的方式。",
  "desk": "technology",
  "event_id": "event-303d41ef822eca4c31bfffad",
  "evidence_groups": [
    {
      "group_id": "france-medias-monde-rfi-editorial",
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        "media"
      ],
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        "rfi-chinese"
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      "published_at": "2026-09-14T08:37:28Z",
      "role": "media",
      "source_id": "rfi-chinese",
      "source_name": "RFI",
      "title": "RFI 推出《世界镜头》庆祝摄影技术诞生200周年 《坦克人》入选",
      "url": "https://www.rfi.fr/cn/%E5%9B%BD%E9%99%85/20260914-rfi-%E6%8E%A8%E5%87%BA-%E4%B8%96%E7%95%8C%E9%95%9C%E5%A4%B4-%E5%BA%86%E7%A5%9D%E6%91%84%E5%BD%B1%E6%8A%80%E6%9C%AF%E8%AF%9E%E7%94%9F200%E5%91%A8%E5%B9%B4-%E5%9D%A6%E5%85%8B%E4%BA%BA-%E5%85%A5%E9%80%89",
      "version_id": "itemv-5a4e285efe623416950fef88"
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  "evidence_strength": "single-source",
  "headline": "RFI 推出《世界镜头》庆祝摄影技术诞生200周年 《坦克人》入选",
  "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."
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  "mutation": {
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  "published_at": "2026-09-14T08:37:28Z",
  "reported_facts": [
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      "evidence_item_id": "item-afcf7be47ecf14e381e87035",
      "published_at": "2026-09-14T08:37:28Z",
      "statement": "RFI published “RFI 推出《世界镜头》庆祝摄影技术诞生200周年 《坦克人》入选”."
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  "updated_at": "2026-09-14T08:37:28Z",
  "url": "https://palimpsest.info/news/wire/event-303d41ef822eca4c31bfffad/",
  "version_id": "eventv-d88ba9c48084ebe6ebd61a43"
}