{
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  "record_id": "CMSIG20261101VS00",
  "record_slug": "will-the-democrats-win-the-iowa-senate-r-vol-270296",
  "schema_version": "v0.2.0",
  "provenance_version": "0.2.0",
  "published_at": "2026-11-01T14:43:30+00:00",
  "semantic_title": "Fresh volume tests Iowa Senate as a real Democratic pickup",
  "telemetry": "43% · $270K 24h",
  "headline": "Iowa Senate Dem win: 43% on $270K surge",
  "category_tag": "VOLUME_SPIKE",
  "secondary_tags": [],
  "detection_path": "volume_spike",
  "pre_news_classification": "pre_news",
  "status": {
    "state": "live",
    "as_of": "2026-11-04",
    "outcome": null,
    "outcome_basis": null,
    "final_price": null,
    "resolved_at": null
  },
  "target_event_id": "CM-EVT-2X8487L8P4",
  "target_event_slug": "iowa-senate-election-winner",
  "event_question": "Will a Republican win the Iowa Senate seat in the next election?",
  "linked_event_ids": [],
  "primary_market": {
    "platform": "polymarket",
    "platform_market_id": "0xd50c016598c499fceea10a1a714e48d9b4953487fe215daeaf916068fae722f1",
    "question_raw": "Will the Democrats win the Iowa Senate race in 2026?",
    "current_price": 0.43,
    "volume_24h_usd": 270296.833752,
    "volume_cumulative_usd": 964169.4428190002,
    "arbitration_model": "uma_oracle"
  },
  "related_markets": [],
  "bullets": [
    "At 43%, Polymarket holds Iowa as a lean-Republican seat but within striking distance for Democrats.",
    "$270K traded in 24h equals 28% of all-time volume, largest single-day draw this contract has seen.",
    "Election Day pressure; Iowa is a marquee 2026 pickup target and fresh attention may precede polling movement.",
    "Resolves on certified 2026 midterm result for Iowa's U.S. Senate seat."
  ],
  "atomic_claims": [
    {
      "type": "volume_anomaly",
      "provenance": "24h + cumulative volume direct from polymarket API; intensity = 24h/cumulative (derived)",
      "field_provenance": {
        "volume_24h_usd": {
          "tier": "direct",
          "method": "polymarket_api"
        },
        "intensity": {
          "tier": "derived",
          "method": "arithmetic",
          "inputs": [
            "volume_24h_usd",
            "volume_cumulative_usd"
          ]
        }
      },
      "liquidity_context": {
        "poly_vol_24h_usd": 270296.833752
      }
    }
  ],
  "sources": [
    {
      "label": "ClearMarket market record: Will a Republican win the Iowa Senate seat in the next ",
      "url": "https://clearmarket.fyi/events/iowa-senate-election-winner",
      "retrieved_at": "2026-11-01T14:43:30+00:00"
    }
  ],
  "field_provenance": {
    "pm_data": "polymarket_api",
    "news_context": "retrieval_grounded",
    "editorial_judgment": "cm_signal_llm_judge"
  },
  "canonical_urls": {
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    "json": "https://clearmarket.fyi/signals/will-the-democrats-win-the-iowa-senate-r-vol-270296.json"
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  "license": "https://creativecommons.org/licenses/by/4.0/",
  "_provenance_registry": {
    "direct": "Unaltered extraction from primary venue/source API (e.g., polymarket_clob_api, kalshi_api, BLS, FRED). Highest trust tier.",
    "mediated": "Information fetched via grounded agentic retrieval (e.g., perplexity_grounded). MUST carry source_url to the underlying primary source.",
    "derived": "Algorithmic computation from listed inputs. Chain only as fresh as the oldest input timestamp (see as_of).",
    "editorial": "Interpretive classification produced by a versioned LLM prompt template (prompts auditable in github.com/JDSource/clearmarket/prompts)."
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  "_provenance_canonical": "https://clearmarket.fyi/schema/provenance/v1"
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