{
  "finding": "STD2-032",
  "title": "1.5pipe",
  "recorded_result": "The model has 289 vertices / 512 triangles. No complete match was found under the recorded transforms; the same-index halfpipe fit has maximum residual about 7.32 units and different triangle indices.",
  "checking_steps": [
    "Compare 1.5pipe.lwo with selected halfpipe/helix and the tested pipe relatives. Inspect the same-index halfpipe fit separately from coordinate-set tests.",
    "That rejects the narrow fit only. Missing matching UV data and unresolved UViewShader behavior prevent a claim of recovered finished appearance."
  ],
  "limitations": "Finished shader appearance and intended function remain unresolved.",
  "scope": "The recorded result and checking steps summarize preserved excavation research. The source observations below were recomputed for publication review; they do not rerun the earlier geometry fits, UV checks, reference scans or original-x86 experiments.",
  "source_observations": [
    {
      "archive": "edpieces",
      "name": "1.5pipe.lwo",
      "size": 9902,
      "sha256": "97c0bd8938384d694484db9b52286777769e0a8264a36e9d8ef57715acf64539",
      "identity": "edpieces/1.5pipe.lwo",
      "mesh": {
        "format": "LWOB",
        "vertices": 289,
        "polygon_records": 512,
        "polygon_vertex_counts": {
          "3": 512
        },
        "fan_triangles_excluding_lines_points": 512,
        "PNTS_sha256": "dd0520aab426ce8e5e037b3a5af49038f8434fddf7b82254829153132e853b2a",
        "POLS_sha256": "34b7599e3c7767debc843a44cdc8c873f77641e5aa52c94d1385a97326efe41c"
      }
    }
  ],
  "source_selection": "Files named in the canonical research note, including related models and controls. This is not a claim that every listed file is unused or a complete dependency closure.",
  "preserved_research_records": [
    {
      "record": "ONE_HALF_PIPE_REACHABILITY.md",
      "sha256": "bb9e72ad80dcc32a5bbaade1204339f8cca26b181e0f2fb746c16ac375f9e992"
    },
    {
      "record": "one_half_pipe_reference_audit.json",
      "sha256": "f5936ac0abd985d14cf9e79dac29b6772c554483fb158c4217bc9c9d9f1e6b0b"
    },
    {
      "record": "one_half_pipe_selected_geometry.json",
      "sha256": "dfcc54947fde5ffff6e24534db9e85c566a93ec94b6d0481b97c74b682525bab"
    },
    {
      "record": "one_half_pipe_geometry.json",
      "sha256": "6a97fba2b8646260ecf5396dc56e701a80bac7a2b416f30e059d50384d2e0a75"
    }
  ],
  "record_provenance": "Research-record hashes bind this summary to preserved local records. They do not make those internal records downloadable or replace the original source checks.",
  "fresh_audit": "/evidence/stunt-track-driver-2/source-audit.json",
  "bounded_relationship_audit": "/evidence/stunt-track-driver-2/relationship-audit.json"
}