{
  "finding": "STD2-013",
  "title": "Tunnel",
  "recorded_result": "Tunnel has 239 unique points / 460 triangles; ptowel has 273 / 512. Their coordinate sets do not intersect in that frame; the maximum bidirectional nearest-point distance is about 2.5 units.",
  "checking_steps": [
    "Compare tunnel.lwo and selected ptowel.lwo in original coordinates, rounding to five decimals without fitting alignment.",
    "Reject but_tunnel.lwo and Ptunnel.lwo substring hits as exact tunnel.lwo references. The preview’s basename resolution does not prove the original historical path loaded successfully."
  ],
  "limitations": "Traversability has not been tested; resemblance to a selected model does not establish identical geometry.",
  "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": "contents.obv",
      "size": 302703,
      "sha256": "8ba24a802eb4d1553f5b80096917a0eab7b2179579cc51e9b4a877961e100ca5",
      "identity": "edpieces/contents.obv"
    },
    {
      "archive": "edpieces",
      "name": "ptowel.lws",
      "size": 1999,
      "sha256": "dc9617c29bef196bf429d216d4523dae81bbcc2ba0b9609fe757fec5273b9789",
      "identity": "edpieces/ptowel.lws",
      "scene": {
        "objects": [
          {
            "model_basename": "ptowel.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "coin.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          }
        ]
      }
    },
    {
      "archive": "edpieces",
      "name": "Ptunnel.lwo",
      "size": 14398,
      "sha256": "b2497d5155a2bc0d48051123ba3f671c9a53a6600730a4aa862f41c6f2ed3023",
      "identity": "edpieces/Ptunnel.lwo",
      "mesh": {
        "format": "LWOB",
        "vertices": 518,
        "polygon_records": 777,
        "polygon_vertex_counts": {
          "3": 777
        },
        "fan_triangles_excluding_lines_points": 777,
        "PNTS_sha256": "cb057b8c3eee35ad3bdc7592a2eb9f6bac7c554e90114c87c1efb3e77af6aca4",
        "POLS_sha256": "de8014815a15873c0ba639f89119deab8c1d5af2c57e18959dd8bb93b3feacbc"
      }
    },
    {
      "archive": "edpieces",
      "name": "tunnel.lwo",
      "size": 7708,
      "sha256": "6df1f3ff4b4384c212b2b41446536596487b6497187292e7cfc5c796c1d1f3e3",
      "identity": "edpieces/tunnel.lwo",
      "mesh": {
        "format": "LWOB",
        "vertices": 239,
        "polygon_records": 460,
        "polygon_vertex_counts": {
          "3": 460
        },
        "fan_triangles_excluding_lines_points": 460,
        "PNTS_sha256": "2f2b8ba632b2c3c4793b834d1f0d89feec6515cdfe5997f23e5eff88a2443b49",
        "POLS_sha256": "3c9f3baece4b7fecfb146e5bda7f33efb0459d3ca5428c83db68eedfe154e9f6"
      }
    },
    {
      "archive": "edpieces",
      "name": "tunnel.lws",
      "size": 1417,
      "sha256": "dd5f453abb3883cbe1d52163ba9d8a5fb9cd9997eceab10a24ba80bb27e3391a",
      "identity": "edpieces/tunnel.lws",
      "scene": {
        "objects": [
          {
            "model_basename": "tunnel.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          }
        ]
      }
    },
    {
      "archive": "uedit",
      "name": "butt.lws",
      "size": 4216,
      "sha256": "4ac57d6cdcf2da449b8bccf954894a2510bac0398a308cc3c89fdf15ec9ce8e2",
      "identity": "uedit/butt.lws",
      "scene": {
        "objects": [
          {
            "model_basename": "but_straight.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_tunnel.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_olly.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_sturn.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_puddle.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_whoopty.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_jump.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "button8.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "button9.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_halfpipe.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_hijump.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_90turn.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          },
          {
            "model_basename": "but_90turnr.lwo",
            "ShowObject": [
              "8",
              "7"
            ]
          }
        ]
      }
    }
  ],
  "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": "TUNNEL_REACHABILITY.md",
      "sha256": "f076ca14061dfc1923106419e72ab8ecf00545ecdc34ba754158921e62bc32e2"
    },
    {
      "record": "tunnel_reference_audit.json",
      "sha256": "e77ce99907911443ea56de3e61bc13d9efbe32a0f1f489a781b5aa769c75fac9"
    },
    {
      "record": "tunnel_geometry_comparison.json",
      "sha256": "fe4ea5ebe86ed676e5ac686f951473c78e22f45f4c38333d1aacc7aa39a3ab21"
    }
  ],
  "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"
}