{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-07-17-004",
    "source_story_id": "tmp-story-shipboard-ionospheric-dead-zones",
    "edition_id": "mp-2026-07-17-morning-0008",
    "edition_url": "https://themachinepress.com/edition/2026-07-17",
    "position": 4,
    "story_type": "dispatch",
    "section": "safety",
    "editorial_classification": "editorial",
    "headline": "A Ship Makes Its Navigation Receivers Vote",
    "slug": "a-ship-makes-its-navigation-receivers-vote",
    "dek": "Multiple satellite references can expose an ionospheric disturbance hidden in one apparently clean link.",
    "summary": "Multiple satellite references can expose an ionospheric disturbance hidden in one apparently clean link.",
    "body_text": "A new method combines several carrier-phase tests instead of trusting one reference. In a ten-hour, 96.3-kilometer ship experiment using six BeiDou references and three baselines, the collaborative rules improved detection sensitivity. The result still needs trials in rougher seas and other interference environments.",
    "why_it_matters": "Multiple satellite references can expose an ionospheric disturbance hidden in one apparently clean link.",
    "limitations": [],
    "importance": 9,
    "canonical_url": "https://themachinepress.com/story/mp-2026-07-17-004/a-ship-makes-its-navigation-receivers-vote",
    "json_url": "https://themachinepress.com/story/mp-2026-07-17-004.json",
    "first_published_at": "2026-07-17T09:00:00.000-04:00",
    "modified_at": "2026-07-17T14:34:04.943-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-07-17-004-001",
        "text": "Multiple satellite references can expose an ionospheric disturbance hidden in one apparently clean link.",
        "source_ids": [
          "source-2026-07-17-004"
        ],
        "qualification": null
      }
    ],
    "source_ids": [
      "source-2026-07-17-004"
    ],
    "tags": [
      "navigation",
      "ionosphere",
      "BeiDou"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-07-17-004",
      "title": "CAS via Newswise: Ionospheric dead zones at sea",
      "publisher": "CAS via Newswise",
      "url": "https://www.newswise.com/articles/boolean-collaborative-decision-rule-eliminates-hidden-ionospheric-dead-zones-at-sea",
      "canonical_url": "https://www.newswise.com/articles/boolean-collaborative-decision-rule-eliminates-hidden-ionospheric-dead-zones-at-sea",
      "source_type": "secondary_reporting",
      "is_primary_source": false,
      "published_at": "2026-07-17T03:40:00.000-04:00",
      "accessed_at": "2026-07-17T11:30:57.481-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-07-17-004-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "A Ship Makes Its Navigation Receivers Vote",
    "publisher": "The Machine Press",
    "published_at": "2026-07-17T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-07-17-004/a-ship-makes-its-navigation-receivers-vote"
  }
}
