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  "returned_pipeline_recovered": 4,
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  "raw_candidate_translation_improved": 5,
  "raw_candidate_translation_worsened": 3,
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    },
    {
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      "last_condition_number": 4.014656954226814,
      "last_support_counts": [
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    },
    {
      "case_id": "2011_09_26_0009-negative",
      "status": "max_iterations",
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      "last_step_m": 0.0013896172889094754,
      "last_condition_number": 4.447359884908366,
      "last_support_counts": [
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    },
    {
      "case_id": "2011_09_26_0011-positive",
      "status": "max_iterations",
      "accepted": false,
      "baseline_translation_m": 0.13578475614000268,
      "returned_translation_m": 0.13578475614000268,
      "raw_candidate_translation_m": 0.33973093445272723,
      "last_step_m": 0.006844482719939284,
      "last_condition_number": 6.331442146122675,
      "last_support_counts": [
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    },
    {
      "case_id": "2011_09_26_0011-negative",
      "status": "max_iterations",
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      "baseline_translation_m": 0.2750710135583173,
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      "last_support_counts": [
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    }
  ],
  "limitations": [
    "All eight candidates hit the predeclared outer-iteration limit; none is an accepted improvement.",
    "Reference errors of rejected candidates are post-fit diagnostics, not recovery claims.",
    "Rotation remains fixed; two baselines already fail the rotation threshold.",
    "Reassociation and sampling change between outer iterations; inner costs are not a common fixed objective across iterations.",
    "Synthetic rank/recovery tests do not validate noisy stereo geometry or uncertainty on real recordings.",
    "Four spent drives with unequal stereo information; no held-out evaluation, learned baseline or independent-family claim."
  ],
  "artifact_sha256": {
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