{
  "date": "2026-09-20",
  "scope": "Architectural maquettes, not photogrammetry or surveyed digital twins. Modern edition uses cool stone and green ink; historical edition retains sepia paper. Geometry is unchanged by the palette revision.",
  "sources": [
    {
      "url": "https://www.openstreetmap.org/way/563937468",
      "use": "Foundation footprint and 11-storey tag"
    },
    {
      "url": "https://www.openstreetmap.org/way/544763666",
      "use": "Old bridge axis, retractable deck, two lanes and sidewalks"
    },
    {
      "url": "https://www.medievalroutes.gr/el/sylloges/antikeimena/2477_el/",
      "use": "Western bastion morphology; no image reproduction"
    },
    {
      "url": "https://www.medievalroutes.gr/el/sylloges/antikeimena/5089_el/",
      "use": "Museum morphology and arches; no image reproduction"
    },
    {
      "url": "https://catalogue.bnf.fr/ark:/12148/cb40746835t",
      "use": "Coronelli original source; interpretation in plate space"
    },
    {
      "source": "User-provided codex-clipboard-eb035117-79d8-4f13-9299-32ab3fe2e14c.png",
      "use": "Visual proportion reference only. No screenshot texture or Google mesh is redistributed."
    }
  ],
  "models": [
    {
      "id": "foundation",
      "name": "Μέγαρο Καράκωστα",
      "origin": [
        23.59846,
        38.46844
      ],
      "edition": "modern",
      "vertices": 3204,
      "format": "float32-le-xyz-rgb",
      "notes": "Podium: OSM way 563937468. Eleven-storey organisation building; tower setbacks, glazing and podium interpreted from the user-provided screenshot. Overall 41m model height follows the prior map estimate, not a survey.",
      "excludeIds": [
        5639374682
      ]
    },
    {
      "id": "bridge",
      "name": "Παλαιά Γέφυρα Ευρίπου",
      "origin": [
        23.5893316,
        38.462775300000004
      ],
      "edition": "modern",
      "vertices": 1680,
      "format": "float32-le-xyz-rgb",
      "notes": "Axis and retractable, two-lane construction: OSM way 544763666. Model shows a closed sliding deck, central seam, pavements and rails. Widths, rail spacing and elevations are illustrative.",
      "excludeIds": []
    },
    {
      "id": "castle",
      "name": "Δυτικός προμαχώνας",
      "origin": [
        23.583188475,
        38.4652914875
      ],
      "edition": "modern",
      "vertices": 1812,
      "format": "float32-le-xyz-rgb",
      "notes": "Footprint: OSM way 758172279, with a 3% silhouette allowance covering tile quantisation. Ephorate of Antiquities: seven-sided western bastion, six cannon embrasures and entrance. Model details and 9.1m elevation are interpretive. Underlying merged 5m provider buildings are retained inside the model, never removed by their shared feature ID.",
      "excludeIds": []
    },
    {
      "id": "folklore",
      "name": "Λαογραφικό Μουσείο",
      "origin": [
        23.593376475,
        38.459900024999996
      ],
      "edition": "modern",
      "vertices": 840,
      "format": "float32-le-xyz-rgb",
      "notes": "Footprint: OSM way 718978446, with a 3% silhouette allowance covering tile quantisation. Ephorate of Antiquities: rectangular military structure with open ground-level arches and vaulted rooms. Three arch bays, finish and height are interpreted. Underlying merged 5m provider buildings are retained inside the model, not removed by shared feature ID.",
      "excludeIds": []
    },
    {
      "id": "historic-city",
      "name": "Η οχυρωμένη πόλη",
      "origin": [
        -0.0012406274731807671,
        0.00309030382132709
      ],
      "edition": "1689",
      "vertices": 15846,
      "format": "float32-le-xyz-rgb",
      "notes": "Coronelli outline in illustration coordinates. Connected tapered masonry, parapets, symbolic gateways and stairways are original interpretive elevations. The circular keep follows the circle on the sea-fort plan; its height is not documented. The southern bridge has three stone arches as annotated on the plate; the northern connection is timber. No surveyed historical heights or invented city blocks.",
      "excludeIds": []
    },
    {
      "id": "historic-castle",
      "name": "Το φρούριο Καράμπαμπα",
      "origin": [
        -0.0016348420306474644,
        -0.003658233939822008
      ],
      "edition": "1689",
      "vertices": 5688,
      "format": "float32-le-xyz-rgb",
      "notes": "Coronelli outline in illustration coordinates. Connected tapered masonry, parapets, symbolic gateways and stairways are original interpretive elevations. The circular keep follows the circle on the sea-fort plan; its height is not documented. The southern bridge has three stone arches as annotated on the plate; the northern connection is timber. No surveyed historical heights or invented city blocks.",
      "excludeIds": []
    },
    {
      "id": "historic-passage",
      "name": "Το πέρασμα του Ευρίπου",
      "origin": [
        -0.0009038096599404518,
        0.0003265114847472707
      ],
      "edition": "1689",
      "vertices": 12228,
      "format": "float32-le-xyz-rgb",
      "notes": "Coronelli outline in illustration coordinates. Connected tapered masonry, parapets, symbolic gateways and stairways are original interpretive elevations. The circular keep follows the circle on the sea-fort plan; its height is not documented. The southern bridge has three stone arches as annotated on the plate; the northern connection is timber. No surveyed historical heights or invented city blocks.",
      "excludeIds": []
    }
  ],
  "files": [
    {
      "name": "modern.js",
      "bytes": 243285,
      "sha256": "6f97484ab4810850bdb86e2a7ec4e64b539743f5cc99a1992a1b606c3873e238"
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    {
      "name": "1689.js",
      "bytes": 1082493,
      "sha256": "4144a919315a5b81693eb4c684c1eddbb652e45bdff08d80b52b33da01591981"
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}