{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-08-21-014",
    "source_story_id": "tmp-story-physical-language-certification",
    "edition_id": "mp-2026-08-21-morning-0043",
    "edition_url": "https://themachinepress.com/edition/2026-08-21",
    "position": 14,
    "story_type": "dispatch",
    "section": "robotics",
    "editorial_classification": "editorial",
    "headline": "The Sensor Meaning Failed at the Executor",
    "slug": "the-sensor-meaning-failed-at-the-executor",
    "dek": "A proposed certificate separated shared representations from whether a frozen controller could execute an unseen composition.",
    "summary": "A proposed certificate separated shared representations from whether a frozen controller could execute an unseen composition.",
    "body_text": "DBOSC tests whether independently trained sensor compilers enter a frozen response chart with interchangeable physical meaning. Haptic, audio and acceleration representations for unseen surfaces clustered more closely by surface than mismatched pairs, but the preregistered executor could not advance even exact chart coordinates through a held-out program. At a converged budget, 14 of 16 checks passed. The failure locates capability in the executor rather than proving that compact multimodal representations alone understand physical action.",
    "why_it_matters": "A proposed certificate separated shared representations from whether a frozen controller could execute an unseen composition.",
    "limitations": [
      "Haptic, audio and acceleration representations for unseen surfaces clustered more closely by surface than mismatched pairs, but the preregistered executor could not advance even exact chart coordinates through a held-out program."
    ],
    "importance": 8,
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-21-014/the-sensor-meaning-failed-at-the-executor",
    "json_url": "https://themachinepress.com/story/mp-2026-08-21-014.json",
    "first_published_at": "2026-08-21T09:00:00.000-04:00",
    "modified_at": "2026-08-21T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-08-21-014-001",
        "text": "A proposed certificate separated shared representations from whether a frozen controller could execute an unseen composition.",
        "source_ids": [
          "source-2026-08-21-014"
        ],
        "qualification": "Haptic, audio and acceleration representations for unseen surfaces clustered more closely by surface than mismatched pairs, but the preregistered executor could not advance even exact chart coordinates through a held-out program."
      }
    ],
    "source_ids": [
      "source-2026-08-21-014"
    ],
    "tags": [
      "world models",
      "multimodal learning",
      "physical execution"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-21-014",
      "title": "arXiv preprint 2608.19492",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.19492",
      "canonical_url": "https://arxiv.org/abs/2608.19492",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-08-18T20:00:00.000-04:00",
      "accessed_at": "2026-08-21T08:22:06.000-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-08-21-014-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "The Sensor Meaning Failed at the Executor",
    "publisher": "The Machine Press",
    "published_at": "2026-08-21T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-21-014/the-sensor-meaning-failed-at-the-executor"
  }
}
