{
  "id": "city-maintenance-ladder",
  "type": "model",
  "title": "保護ケージ付き保守はしご",
  "titleEn": "Caged maintenance ladder",
  "description": "壁面取付金具、横桟、保護フープと縦帯を備える垂直保守はしご。規格適合は未検証。 ゲーム・可視化向け。製造・構造設計・3Dプリント用途は未検証。",
  "descriptionEn": "A vertical maintenance ladder with wall brackets, rungs, protective hoops and cage straps. Safety-standard compliance has not been validated. For games and visualization; not validated for manufacture, structural engineering or 3D printing.",
  "category": "urban",
  "tags": [
    "city",
    "street",
    "original",
    "urban-structure",
    "access",
    "maintenance-ladder"
  ],
  "author": "Xenoah",
  "license": "CC-BY-4.0",
  "version": "1.0.0",
  "status": "public",
  "created": "2026-10-14",
  "updated": "2026-10-14",
  "thumbnail": "https://xenoah.github.io/meshcopia/assets/city-maintenance-ladder/thumbnail.png",
  "preview": "city-maintenance-ladder.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 7248,
  "dimensions": [
    0.810745,
    3.8,
    0.816
  ],
  "uv": "Per-component primitive or automatically unwrapped UVs. Overlapping between components; not a packed unique lightmap atlas. Solid-color PBR materials; no external textures. STL has no colors or UVs.",
  "provenance": {
    "method": "Original AI-agent-authored procedural city geometry",
    "tool": "Blender 4.3.2; Meshcopia city generator 1.0",
    "rights": "Original geometry and material design created for Xenoah Meshcopia under the owner request for CC-BY-4.0 publication. No third-party meshes, scans, brands, logos or font files.",
    "generatorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city/access_structures.py",
    "sourceSha256": "d8e7759b0cd6b85481e03132eefe4fe75061026666de1f2c49fd90943cc93fcb",
    "stlSha256": "030ba2fcafdbd2a9a05f4409dee02e2fd6db8bc9610ce226ded8d17ab73f5ad5"
  },
  "usages": [
    {
      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
        "scripts/city/access_structures.py",
        "scripts/city/common.py",
        "scripts/city/access.py",
        "scripts/city/access_extra.py"
      ],
      "selectors": [
        "city-maintenance-ladder"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-maintenance-ladder/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-maintenance-ladder.json",
  "attribution": "Caged maintenance ladder by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-maintenance-ladder/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: none. If modified, replace this line with a description of your changes.",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "files": [
    {
      "name": "city-maintenance-ladder.glb",
      "format": "GLB",
      "bytes": 289400,
      "sha256": "d8e7759b0cd6b85481e03132eefe4fe75061026666de1f2c49fd90943cc93fcb",
      "url": "https://xenoah.github.io/meshcopia/assets/city-maintenance-ladder/source/city-maintenance-ladder.glb"
    },
    {
      "name": "city-maintenance-ladder.stl",
      "format": "STL",
      "bytes": 362484,
      "sha256": "030ba2fcafdbd2a9a05f4409dee02e2fd6db8bc9610ce226ded8d17ab73f5ad5",
      "url": "https://xenoah.github.io/meshcopia/assets/city-maintenance-ladder/source/city-maintenance-ladder.stl"
    }
  ],
  "downloads": {
    "delivery": {
      "schemaVersion": 1,
      "id": "city-maintenance-ladder",
      "assetVersion": "1.0.0",
      "packageVersion": "1.0.0",
      "contentPolicy": "fbx-required-textures-single-notice-v1",
      "sourceFiles": [
        {
          "bytes": 289400,
          "name": "city-maintenance-ladder.glb",
          "sha256": "d8e7759b0cd6b85481e03132eefe4fe75061026666de1f2c49fd90943cc93fcb"
        },
        {
          "bytes": 362484,
          "name": "city-maintenance-ladder.stl",
          "sha256": "030ba2fcafdbd2a9a05f4409dee02e2fd6db8bc9610ce226ded8d17ab73f5ad5"
        }
      ],
      "archive": {
        "bytes": 95495,
        "filename": "city-maintenance-ladder-1.0.0-fbx-minimal-1.0.0.zip",
        "sha256": "6b07768b5ed73dfd96188784b2481aa6a8dcf884e591876e01c8b5b4a2a2ff22",
        "url": "https://github.com/Xenoah/meshcopia/releases/download/fbx-minimal-v1.0.0/city-maintenance-ladder-1.0.0-fbx-minimal-1.0.0.zip"
      },
      "files": [
        {
          "name": "city-maintenance-ladder.fbx",
          "format": "FBX",
          "bytes": 428620,
          "sha256": "edcaa29111e911d90267d695ab38340de52971e573b9db972d3f70f3d3ed75ce",
          "url": "https://github.com/Xenoah/meshcopia/releases/download/fbx-minimal-v1.0.0/city-maintenance-ladder.fbx",
          "fetch": {
            "kind": "chunks-gzip-v1",
            "url": "https://xenoah.github.io/meshcopia/download-data/e1bdf098349dbb9407c891488c6f8e9308a2e273dcbb64a4f2e75b99bf5268cb.json",
            "bytes": 317,
            "sha256": "e1bdf098349dbb9407c891488c6f8e9308a2e273dcbb64a4f2e75b99bf5268cb"
          }
        }
      ],
      "notice": {
        "bytes": 400,
        "filename": "LICENSE.txt",
        "sha256": "04cdb951e1d4effc71dd7c0edf4258565fa4d60ce5ab315e4636cc43c2c7b4db",
        "text": "Caged maintenance ladder by Xenoah / Meshcopia\nCopyright (c) 2026 Xenoah\nCC BY 4.0: https://creativecommons.org/licenses/by/4.0/\nSource: https://xenoah.github.io/meshcopia/assets/city-maintenance-ladder/\nProvided as-is, without warranties (license Section 5).\nChanges: none.\nAdditional changes: Converted unchanged source GLB geometry to FBX, with documented compatible material/texture derivatives.\n"
      },
      "verification": {
        "fCommit": "83a1daedf3ad7563fa55bf0cca40ca749689e139",
        "inventorySha256": "0d7b07099d9ef0e5663998aa78b78db0614f11776ae74c30986742bccacd6afc",
        "releaseId": 414350272,
        "releaseTag": "fbx-minimal-v1.0.0",
        "state": "published-verified"
      }
    }
  },
  "previewUrl": "https://xenoah.github.io/meshcopia/assets/city-maintenance-ladder/source/city-maintenance-ladder.glb"
}