{
  "declared_links": {
    "economic_signal_ids": [],
    "relation": "topic-surface-only",
    "scan_signal_ids": []
  },
  "dek": "中新网长沙9月5日电(付敬懿)以“粮安天下聚合力、产销融通促发展”为主题的第八届中国粮食交易大会5日在湖南长沙开幕。大会聚焦粮食产购储加销全链条协同，促进粮食产销协作，助推粮食产业升级，深化粮食领域国际合作，吸引3100余家企业参展、2万余名行业人员参会，共话粮食产业发展新机遇。",
  "desk": "politics",
  "event_id": "event-f83dfd98f2387d543acb661e",
  "evidence_groups": [
    {
      "group_id": "china-news-service-state-media",
      "roles": [
        "media"
      ],
      "source_ids": [
        "china-news-service-politics"
      ]
    }
  ],
  "evidence_refs": [
    {
      "independence_group": "china-news-service-state-media",
      "item_id": "item-adb7f3ef425c36eb73364abd",
      "published_at": "2026-09-05T14:53:57Z",
      "role": "media",
      "source_id": "china-news-service-politics",
      "source_name": "China News Service",
      "title": "产购储加销全链条协同 第八届中国粮食交易大会在长沙开幕",
      "url": "https://www.chinanews.com.cn/gn/2026/09-05/10691161.shtml",
      "version_id": "itemv-c19413fab40dfaa22df15b2d"
    }
  ],
  "evidence_strength": "single-source",
  "headline": "产购储加销全链条协同 第八届中国粮食交易大会在长沙开幕",
  "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-076af0510fc268fc4a7003b7"
  },
  "published_at": "2026-09-05T14:53:57Z",
  "reported_facts": [
    {
      "attribution": "China News Service",
      "evidence_item_id": "item-adb7f3ef425c36eb73364abd",
      "published_at": "2026-09-05T14:53:57Z",
      "statement": "China News Service published “产购储加销全链条协同 第八届中国粮食交易大会在长沙开幕”."
    }
  ],
  "topics": [
    "government",
    "politics"
  ],
  "updated_at": "2026-09-05T14:53:57Z",
  "url": "https://palimpsest.info/news/wire/event-f83dfd98f2387d543acb661e/",
  "version_id": "eventv-076af0510fc268fc4a7003b7"
}