{
  "date": "2026-10-01",
  "scope": "Focused Exa research on proportions and pearl construction",
  "sources": [
    {
      "url": "https://firedragon1949.org.hk/inherit-the-fire-dragon-culture/",
      "read": "full Chinese text",
      "supports": [
        "45 cm total incense",
        "approximately 70 cm banyan roots",
        "2 cm rope core diameter",
        "two pomelo pearls",
        "rattan, bamboo, wire and grass"
      ]
    },
    {
      "url": "https://cache.org.hk/blog/fdms_2021/",
      "read": "full text",
      "supports": [
        "two incense-covered pomelos",
        "workshop with chief commander at Tai Hang Residents Welfare Association"
      ]
    },
    {
      "url": "http://orientaldaily.on.cc/cnt/lifestyle/20120918/00321_005.html",
      "read": "full text",
      "supports": [
        "chief commander's 2012 description of drilled bamboo threaded with rope"
      ],
      "limits": [
        "historical account, not universal modern knot diagram",
        "no numeric pole diameter or height"
      ]
    },
    {
      "url": "https://www.amo.gov.hk/tc/about-us/online-articles/20230928/index.html",
      "read": "targeted returned text",
      "supports": [
        "bamboo-supported sections",
        "rope and grass construction"
      ],
      "limits": [
        "32-section wording differs from Heritage Centre 31-section wording"
      ]
    },
    {
      "url": "https://www.hkcna.hk/docDetail.jsp?channel=2803&id=100787085",
      "read": "full returned text",
      "supports": [
        "2 m head description"
      ],
      "limits": [
        "axis unspecified; not used as exact width or height"
      ]
    }
  ],
  "verified_source_ratios": {
    "incense_total_to_beard": 0.6428571428571429,
    "rope_diameter_to_beard": 0.02857142857142857
  },
  "design_estimates": {
    "body_bamboo_diameter_cm": 4.5,
    "head_bamboo_diameter_cm": 6,
    "pearl_handle_diameter_cm": 3,
    "node_spacing_cm": 30,
    "pomelo_transverse_cm": 14.5,
    "pomelo_axial_cm": 18.5,
    "incense_per_pearl": 600,
    "grass_insertion_cm_range": [
      6,
      9
    ],
    "fruit_insertion_cm_range": [
      3,
      5
    ],
    "burn_loss_cm_range": [
      0,
      2
    ]
  },
  "not_supported": [
    "exact troupe fruit size",
    "grass jacket around pomelo",
    "fixed historical incense count per pearl",
    "exact three-axis head dimensions",
    "full 67 m model at one scale",
    "physical miniature manufacturability"
  ],
  "photo_references": "Three user images; perspective and year variation preclude exact metrology"
}