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  "story": {
    "story_id": "mp-2026-10-15-015",
    "source_story_id": "tmp-brief-logical-ccz-cultivation",
    "edition_id": "mp-2026-10-15-morning-0097",
    "edition_url": "https://themachinepress.com/edition/2026-10-15",
    "position": 17,
    "story_type": "ticker",
    "section": "research",
    "editorial_classification": "editorial",
    "headline": "A Quantum Factory Cultivates CCZ States Directly",
    "slug": "a-quantum-factory-cultivates-ccz-states-directly",
    "dek": "A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.",
    "summary": "A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.",
    "body_text": "The authors report circuit-level simulations with joint infidelity down to 4.10×10^-7 at 8.89 percent acceptance under their stated neutral-atom error model. Their estimated spacetime cost beats a T-state-to-CCZ route at the smallest factory's target; this remains a simulated protocol, not hardware operation.",
    "why_it_matters": "A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.",
    "limitations": [
      "Their estimated spacetime cost beats a T-state-to-CCZ route at the smallest factory's target; this remains a simulated protocol, not hardware operation."
    ],
    "importance": 6,
    "canonical_url": "https://themachinepress.com/story/mp-2026-10-15-015/a-quantum-factory-cultivates-ccz-states-directly",
    "json_url": "https://themachinepress.com/story/mp-2026-10-15-015.json",
    "first_published_at": "2026-10-15T09:00:00.000-04:00",
    "modified_at": "2026-10-15T09:00:00.000-04:00",
    "content_status": "updated",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-10-15-015-001",
        "text": "A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.",
        "source_ids": [
          "source-2026-10-15-017"
        ],
        "qualification": "Their estimated spacetime cost beats a T-state-to-CCZ route at the smallest factory's target; this remains a simulated protocol, not hardware operation."
      }
    ],
    "source_ids": [
      "source-2026-10-15-017"
    ],
    "tags": [
      "quantum error correction",
      "CCZ",
      "fault tolerance"
    ],
    "image_url": null,
    "corrections": [
      {
        "correction_id": "correction-2026-10-15-001",
        "revision": 2,
        "summary": "Publication note: This October 15 edition was prepared before its scheduled 9:00 AM America/Detroit reveal, but publication was delayed by a production build failure. The original reporting and image-generation timestamps are preserved.",
        "published_at": "2026-10-15T09:00:00.000-04:00",
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  "sources": [
    {
      "source_id": "source-2026-10-15-017",
      "title": "arXiv preprint 2610.20591, original v1",
      "publisher": "arXiv / submitting research authors",
      "url": "https://arxiv.org/abs/2610.20591v1",
      "canonical_url": "https://arxiv.org/abs/2610.20591v1",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-10-14T13:58:30.000-04:00",
      "accessed_at": "2026-10-15T08:28:29.903-04:00",
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    }
  ],
  "corrections": [
    {
      "correction_id": "correction-2026-10-15-001",
      "revision": 2,
      "summary": "Publication note: This October 15 edition was prepared before its scheduled 9:00 AM America/Detroit reveal, but publication was delayed by a production build failure. The original reporting and image-generation timestamps are preserved.",
      "published_at": "2026-10-15T09:00:00.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "A Quantum Factory Cultivates CCZ States Directly",
    "publisher": "The Machine Press",
    "published_at": "2026-10-15T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-10-15-015/a-quantum-factory-cultivates-ccz-states-directly"
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}