{
  "declared_links": {
    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "垃圾場和工業設施散發的氣味正受到更嚴格的監測，但這有幫助嗎？",
  "desk": "politics",
  "event_id": "event-cdb160bf11bb39911c7f1e25",
  "evidence_groups": [
    {
      "group_id": "bbc-chinese-editorial",
      "roles": [
        "media"
      ],
      "source_ids": [
        "bbc-chinese"
      ]
    }
  ],
  "evidence_refs": [
    {
      "independence_group": "bbc-chinese-editorial",
      "item_id": "item-2a07e664cb34526022172992",
      "published_at": "2026-10-19T00:08:13Z",
      "role": "media",
      "source_id": "bbc-chinese",
      "source_name": "BBC News Chinese",
      "title": "矽谷這座城市垃圾太臭居民受不了 就讓科技來幫忙",
      "url": "https://www.bbc.com/zhongwen/articles/c5kgl32d8443o/trad?at_campaign=rss&at_medium=RSS",
      "version_id": "itemv-1ad1d0464e19321a06697ae1"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "矽谷這座城市垃圾太臭居民受不了 就讓科技來幫忙",
  "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-c7081f4ae76a2e8b07a011f3"
  },
  "published_at": "2026-10-19T00:08:13Z",
  "reported_facts": [
    {
      "attribution": "BBC News Chinese",
      "evidence_item_id": "item-2a07e664cb34526022172992",
      "published_at": "2026-10-19T00:08:13Z",
      "statement": "BBC News Chinese published “矽谷這座城市垃圾太臭居民受不了 就讓科技來幫忙”."
    }
  ],
  "topics": [
    "politics",
    "rights"
  ],
  "updated_at": "2026-10-19T00:08:13Z",
  "url": "https://palimpsest.info/news/wire/event-cdb160bf11bb39911c7f1e25/",
  "version_id": "eventv-c7081f4ae76a2e8b07a011f3"
}