{
  "caution": "No CMM or caliper measurement of this specimen was available. Residuals are combined-system errors and must not be labelled scanner-only bias.",
  "reference_provenance": "Derived from the exact target design and corrected assembly datums. It is not a CMM-measured physical mesh and does not encode print warping, texture, or seating error.",
  "registration": {
    "bootstrap": {
      "cad_to_scan_p95_mm": {
        "max": 2.9664,
        "median": 2.92985,
        "min": 2.9057
      },
      "rotation_delta_deg": {
        "max": 0.11766,
        "median": 0.06355,
        "min": 0.01239
      },
      "runs": 8,
      "sample_fraction": 0.8,
      "scan_to_cad_median_mm": {
        "max": 1.6716,
        "median": 1.65995,
        "min": 1.6347
      },
      "scan_to_cad_p95_mm": {
        "max": 7.2809,
        "median": 7.2464,
        "min": 7.2117
      },
      "translation_delta_mm": {
        "max": 0.14221,
        "median": 0.10581,
        "min": 0.06951
      }
    },
    "free_scale_diagnostic_delta_pct": 0.83582,
    "method": "Known-target prism initialization followed by proper rigid 75%-trimmed ICP",
    "scale_fixed_mm_per_mm": 1.0,
    "scale_policy": "Fixed at 1.000 mm/mm; no primary-result rescaling",
    "transform_reference_mm_to_scan": {
      "metric_scale_error_pct_vs_mm": 0.0,
      "reference_to_scan_scale_m_per_mm": 0.001,
      "rotation": [
        [
          -0.00726742,
          0.99996197,
          -0.00482127
        ],
        [
          -0.99996616,
          -0.00728587,
          -0.00382146
        ],
        [
          -0.00385644,
          0.00479333,
          0.99998108
        ]
      ],
      "translation_m": [
        0.001811,
        -0.000466,
        0.0089
      ],
      "trimmed_icp_score_m2": 1.0354693953619274e-06,
      "uses_reflection": false
    }
  },
  "schema": "org.iphonotype.helios-benchy.public-registration/v1",
  "target_id": "PF-T31-00001059-C694BB02",
  "units": "millimetres under known-target consistency"
}