{
 "format": "construct-scene",
 "version": 2,
 "id": "stortorget-granite-block",
 "title": "The granite block",
 "subject": {
  "category": "object",
  "summary": "Photo-inferred broad squat granite block in the foreground of Stortorget Christmas Market, December 2022. Thick overhanging flat lid, narrow pale inset band, vertical stone base slabs and two black foot-level front recesses. Its function is not identified.",
  "accuracy": "approximate",
  "synthetic": false
 },
 "units": "m",
 "seed": 7,
 "sources": [
  {
   "id": "request",
   "kind": "user_request",
   "title": "Foreground granite block reconstruction brief",
   "rights": "user_private"
  },
  {
   "id": "photo",
   "kind": "reference_image",
   "title": "Ximonic (Simo Räsänen), Stortorget Christmas Market, December 2022",
   "ref": "Source photograph supplied in shared brief; CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/ . Derived visual reconstruction credit: Ximonic (Simo Räsänen).",
   "rights": "permitted"
  },
  {
   "id": "model-estimate",
   "kind": "generated",
   "ref": "Provenance audit D; existing geometry/artwork retained without orthographic fitting or measurement.",
   "rights": "reference_only",
   "title": "Agent-authored dimensions, unseen continuation and neutral-texture placements"
  }
 ],
 "facts": [
  {
   "key": "width",
   "value": 2.2,
   "unit": "m",
   "certainty": "inferred",
   "source": "model-estimate",
   "note": "Agent/supervisor production estimate motivated by perspective silhouette, not user-measured or published; no verified scale."
  },
  {
   "key": "depth",
   "value": 1.55,
   "unit": "m",
   "certainty": "inferred",
   "source": "model-estimate",
   "note": "Agent production estimate of foreshortened footprint; hidden back is unknown, no measured footprint or fitted orthographic drawing."
  },
  {
   "key": "height",
   "value": 1.05,
   "unit": "m",
   "certainty": "inferred",
   "source": "model-estimate",
   "note": "Agent production envelope estimate, not published or measured."
  },
  {
   "key": "cap.thickness",
   "value": 0.17,
   "unit": "m",
   "certainty": "inferred",
   "source": "model-estimate",
   "note": "Photo shows thick projecting edge but 0.17 m is an agent estimate, not measured."
  },
  {
   "key": "band.height",
   "value": 0.13,
   "unit": "m",
   "certainty": "inferred",
   "source": "model-estimate",
   "note": "Photo shows pale narrow band, but 0.13 m is agent-authored, not a published dimension."
  },
  {
   "key": "front.notch.count",
   "value": 2,
   "certainty": "inferred",
   "source": "photo",
   "note": "Visible in reference: two dark, roughly rectangular foot-level front recess-like patches. Agent interpretation of this visible face, not user-supplied or published count. Internal depth/structure and hidden faces unresolved."
  },
  {
   "certainty": "inferred",
   "key": "visible-outer-form",
   "note": "Literal perspective-photo observation only; appearance does not establish geology, material, date, sculptor or function. No metric scale or orthographic fitting.",
   "source": "photo",
   "value": "Squat broad block-like object with overhanging flat top, pale inset horizontal band and darker upright faces; top/front/right visible, back/left/underside hidden."
  },
  {
   "certainty": "inferred",
   "key": "identity-limits",
   "note": "Legacy granite/stone slab/lid names are modeling descriptions, not geological or functional identifications. Function explicitly remains unknown; no record conclusively matched to this actual foreground object.",
   "source": "model-estimate",
   "value": "Function, internal construction, exact geological material, installation date, maker and sculptor remain unknown."
  }
 ],
 "parts": [
  {
   "id": "base-core",
   "label": "Inferred hidden stone core",
   "role": "structure",
   "certainty": "inferred",
   "source": "model-estimate",
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "stage": 0,
   "shape": {
    "type": "box",
    "size": [
     1.84,
     0.75,
     1.18
    ]
   },
   "at": [
    0,
    0.375,
    -0.015
   ],
   "look": {
    "fill": "dark",
    "weight": 0.4,
    "alpha": 0.55
   },
   "note": "Hidden core/rear are not visible in reference. Entire structure, thickness, composition and dimensions are agent-inferred completion; photo is not direct evidence; both axes remain inferred."
  },
  {
   "id": "front-notched-slab",
   "label": "Front granite slab with two foot-level rectangular notches",
   "role": "identity",
   "certainty": "inferred",
   "source": "photo",
   "basis": [
    "front.notch.count",
    "visible-outer-form",
    "width",
    "height"
   ],
   "stage": 1,
   "shape": {
    "type": "extrude",
    "axis": "z",
    "height": 0.13,
    "profile": [
     [
      -1.05,
      0.006
     ],
     [
      -0.95,
      0
     ],
     [
      -0.82,
      0.004
     ],
     [
      -0.7,
      0
     ],
     [
      -0.7,
      0.135
     ],
     [
      -0.4,
      0.135
     ],
     [
      -0.4,
      0
     ],
     [
      -0.353,
      0.003
     ],
     [
      -0.353,
      0.75
     ],
     [
      -1.05,
      0.75
     ]
    ]
   },
   "at": [
    0.0,
    0.0,
    0.595
   ],
   "look": {
    "fill": "dark",
    "weight": 0.85,
    "alpha": 0.78,
    "glow": 0
   },
   "note": "Visible front face and two dark foot-level rectangular patches motivate notched outline only. Actual cavity depths, slab thickness/joints, geology and function are unverified; extruded profiles/coordinates remain inferred, not orthographically traced."
  },
  {
   "id": "rear-slab",
   "label": "Hidden rear granite slab, inferred",
   "role": "structure",
   "certainty": "inferred",
   "source": "model-estimate",
   "stage": 1,
   "shape": {
    "type": "box",
    "size": [
     2.1,
     0.75,
     0.13
    ]
   },
   "at": [
    0,
    0.375,
    -0.66
   ],
   "look": {
    "fill": "dark",
    "weight": 0.45,
    "alpha": 0.6
   },
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Hidden core/rear are not visible in reference. Entire structure, thickness, composition and dimensions are agent-inferred completion; photo is not direct evidence; both axes remain inferred."
  },
  {
   "id": "side-slab-left",
   "label": "Left granite base slab",
   "role": "structure",
   "certainty": "inferred",
   "source": "photo",
   "stage": 1,
   "shape": {
    "type": "box",
    "size": [
     0.13,
     0.75,
     1.19
    ]
   },
   "at": [
    -0.985,
    0.375,
    0
   ],
   "look": {
    "fill": "dark",
    "weight": 0.55,
    "alpha": 0.7
   },
   "mirror": "x",
   "basis": [
    "visible-outer-form",
    "depth",
    "height"
   ],
   "note": "Photo shows the object's right-hand face only. This authored definition also mirrors to the unseen left: left face, slab construction/thickness, full depth and mirrored symmetry are inferred; photo supports visible right-face appearance, not hidden geometry."
  },
  {
   "id": "inset-pale-band",
   "label": "Narrow pale inset horizontal band",
   "role": "identity",
   "certainty": "inferred",
   "source": "photo",
   "basis": [
    "visible-outer-form",
    "band.height"
   ],
   "stage": 2,
   "shape": {
    "type": "box",
    "size": [
     2.04,
     0.13,
     1.39
    ]
   },
   "at": [
    0,
    0.815,
    0
   ],
   "look": {
    "fill": "auto",
    "tone": "bright",
    "weight": 0.65,
    "alpha": 1,
    "glow": 0
   },
   "note": "Pale horizontal band visible at front/right. Whole box, concealed rear/left continuation, thickness and 0.13 m height inferred; appearance does not identify material or function."
  },
  {
   "id": "band-corner-pier-left",
   "label": "Stone corner interrupting pale band",
   "role": "structure",
   "certainty": "inferred",
   "source": "photo",
   "stage": 2,
   "shape": {
    "type": "box",
    "size": [
     0.17,
     0.13,
     0.15
    ]
   },
   "at": [
    -0.965,
    0.815,
    0.65
   ],
   "look": {
    "fill": "dark",
    "weight": 0.5,
    "alpha": 0.75
   },
   "mirror": "x",
   "artwork": {
    "asset": "neutral-stone-photo",
    "face": "front",
    "slot": "booklet-page-20"
   },
   "basis": [
    "visible-outer-form",
    "band.height"
   ],
   "note": "Dark front corner interruptions of pale band are visible. Exact paired geometry, thickness and neutral texture placement are inferred; artwork does not establish granite/geology."
  },
  {
   "id": "thick-flat-lid",
   "label": "Thick flat granite lid with modest edge wear",
   "role": "mass",
   "certainty": "inferred",
   "source": "photo",
   "basis": [
    "visible-outer-form",
    "width",
    "depth",
    "cap.thickness"
   ],
   "stage": 3,
   "shape": {
    "type": "extrude",
    "axis": "y",
    "height": 0.17,
    "profile": [
     [
      -1.082,
      -0.775
     ],
     [
      1.078,
      -0.775
     ],
     [
      1.1,
      -0.752
     ],
     [
      1.1,
      0.746
     ],
     [
      1.086,
      0.775
     ],
     [
      -1.078,
      0.772
     ],
     [
      -1.1,
      0.75
     ],
     [
      -1.1,
      -0.757
     ]
    ]
   },
   "at": [
    0,
    0.88,
    0
   ],
   "look": {
    "fill": "dark",
    "weight": 0.7,
    "alpha": 0.75,
    "glow": 0
   },
   "note": "Photo supports broad flat projecting top/front/right edge appearance. Exact plan profile, chipped corners, back/left edge, underside and thickness remain inferred; lid is a modeling label, function/geological material unknown."
  },
  {
   "id": "front-notched-slab-right",
   "label": "Right front stone slab with second rectangular foot notch",
   "role": "identity",
   "certainty": "inferred",
   "source": "photo",
   "basis": [
    "front.notch.count",
    "visible-outer-form",
    "width",
    "height"
   ],
   "stage": 1,
   "shape": {
    "type": "extrude",
    "axis": "z",
    "height": 0.127,
    "profile": [
     [
      -0.347,
      0.003
     ],
     [
      0.12,
      0
     ],
     [
      0.28,
      0.004
     ],
     [
      0.28,
      0.135
     ],
     [
      0.58,
      0.135
     ],
     [
      0.58,
      0
     ],
     [
      0.9,
      0.005
     ],
     [
      1.05,
      0.002
     ],
     [
      1.05,
      0.75
     ],
     [
      -0.347,
      0.75
     ]
    ]
   },
   "at": [
    0,
    0,
    0.595
   ],
   "look": {
    "fill": "dark",
    "weight": 0.75,
    "alpha": 0.75,
    "glow": 0
   },
   "note": "Visible front face and two dark foot-level rectangular patches motivate notched outline only. Actual cavity depths, slab thickness/joints, geology and function are unverified; extruded profiles/coordinates remain inferred, not orthographically traced."
  },
  {
   "id": "photo-front-upper-left",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     0.697,
     0.615
    ]
   },
   "at": [
    -0.7015,
    0.4425,
    0.7255
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-1",
    "asset": "front-upper-left-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-front-upper-right",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     1.397,
     0.615
    ]
   },
   "at": [
    0.3515,
    0.4425,
    0.7225
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-2",
    "asset": "front-upper-right-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-front-foot-left",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     0.35,
     0.129
    ]
   },
   "at": [
    -0.875,
    0.0705,
    0.7255
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-3",
    "asset": "front-foot-left-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-front-foot-middle",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     0.68,
     0.129
    ]
   },
   "at": [
    -0.06,
    0.0705,
    0.7255
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-4",
    "asset": "front-foot-middle-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-front-foot-right",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     0.47,
     0.129
    ]
   },
   "at": [
    0.815,
    0.0705,
    0.7225
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-5",
    "asset": "front-foot-right-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-right-base",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     1.45,
     0.75
    ]
   },
   "at": [
    1.05,
    0.375,
    0.0
   ],
   "rotate": [
    0,
    90,
    0
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-6",
    "asset": "right-base-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-lid-top",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     2.16,
     1.51
    ]
   },
   "at": [
    0.0,
    1.05,
    0.0
   ],
   "rotate": [
    -90,
    0,
    0
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-7",
    "asset": "lid-top-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-pale-front-band",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     1.76,
     0.13
    ]
   },
   "at": [
    0.0,
    0.815,
    0.6955
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-8",
    "asset": "pale-front-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-pale-right-band",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     1.18,
     0.13
    ]
   },
   "at": [
    1.0205,
    0.815,
    0.0
   ],
   "rotate": [
    0,
    90,
    0
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-9",
    "asset": "pale-right-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-lid-front-edge",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     2.172,
     0.17
    ]
   },
   "at": [
    0.0,
    0.965,
    0.775
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-10",
    "asset": "lid-front-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "id": "photo-lid-right-edge",
   "role": "artwork",
   "certainty": "inferred",
   "source": "photo",
   "stage": 4,
   "shape": {
    "type": "plane",
    "size": [
     1.498,
     0.17
    ]
   },
   "at": [
    1.1,
    0.965,
    0.0
   ],
   "rotate": [
    0,
    90,
    0
   ],
   "look": {
    "fill": "none",
    "line": "none"
   },
   "artwork": {
    "slot": "booklet-page-11",
    "asset": "lid-right-photo",
    "face": "front"
   },
   "basis": [
    "visible-outer-form"
   ],
   "note": "Existing photo-derived artwork represents a visible top/front/right surface appearance only. Plane sizes, orthogonal placement, crop warping/rectification and actual surface depths remain inferred; no orthographic fitting or published dimensions. Texture does not verify geological material or object function."
  },
  {
   "artwork": {
    "asset": "neutral-stone-photo",
    "face": "front",
    "slot": "booklet-page-21"
   },
   "at": [
    1.05,
    0.815,
    0.65
   ],
   "certainty": "inferred",
   "id": "photo-corner-pier-right-return",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    0,
    90,
    0
   ],
   "shape": {
    "size": [
     0.15,
     0.13
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Existing neutral-stone artwork placement fills modeled returns/rims. Specific thin plane, exact seam and continuation are agent choices, not individually resolved photo features; source texture appearance does not verify geology, geometry or dimensions."
  },
  {
   "artwork": {
    "asset": "neutral-stone-photo",
    "face": "front",
    "slot": "booklet-page-22"
   },
   "at": [
    0,
    0.7501,
    0.71
   ],
   "certainty": "inferred",
   "id": "photo-front-base-rim",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    -90,
    0,
    0
   ],
   "shape": {
    "size": [
     2.1,
     0.03
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Existing neutral-stone artwork placement fills modeled returns/rims. Specific thin plane, exact seam and continuation are agent choices, not individually resolved photo features; source texture appearance does not verify geology, geometry or dimensions."
  },
  {
   "artwork": {
    "asset": "neutral-stone-photo",
    "face": "front",
    "slot": "booklet-page-23"
   },
   "at": [
    1.035,
    0.7501,
    0
   ],
   "certainty": "inferred",
   "id": "photo-right-base-rim",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    -90,
    0,
    0
   ],
   "shape": {
    "size": [
     0.03,
     1.45
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Existing neutral-stone artwork placement fills modeled returns/rims. Specific thin plane, exact seam and continuation are agent choices, not individually resolved photo features; source texture appearance does not verify geology, geometry or dimensions."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-12"
   },
   "at": [
    -0.55,
    0.0675,
    0.576
   ],
   "certainty": "inferred",
   "id": "notch-left-dark-back",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "shape": {
    "size": [
     0.3,
     0.135
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Photo supports dark front foot-level patches only. These placed interior back planes and depths are agent-inferred, not measured cavity surfaces. Existing dark artwork is appearance fill, not evidence of actual internal construction or function."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-13"
   },
   "at": [
    0.43,
    0.0675,
    0.576
   ],
   "certainty": "inferred",
   "id": "notch-right-dark-back",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "shape": {
    "size": [
     0.3,
     0.135
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Photo supports dark front foot-level patches only. These placed interior back planes and depths are agent-inferred, not measured cavity surfaces. Existing dark artwork is appearance fill, not evidence of actual internal construction or function."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-14"
   },
   "at": [
    -0.6995,
    0.0675,
    0.66
   ],
   "certainty": "inferred",
   "id": "notch-left-dark-left-return",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    0,
    90,
    0
   ],
   "shape": {
    "size": [
     0.13,
     0.135
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Internal notch return/soffit geometry is unresolved in source. Exact depths, orthogonal planes and texture placements are agent completion, not traced/photo-verified cavity construction or evidence of block function."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-15"
   },
   "at": [
    -0.4005,
    0.0675,
    0.66
   ],
   "certainty": "inferred",
   "id": "notch-left-dark-right-return",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    0,
    -90,
    0
   ],
   "shape": {
    "size": [
     0.13,
     0.135
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Internal notch return/soffit geometry is unresolved in source. Exact depths, orthogonal planes and texture placements are agent completion, not traced/photo-verified cavity construction or evidence of block function."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-16"
   },
   "at": [
    0.2805,
    0.0675,
    0.6585
   ],
   "certainty": "inferred",
   "id": "notch-right-dark-left-return",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    0,
    90,
    0
   ],
   "shape": {
    "size": [
     0.127,
     0.135
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Internal notch return/soffit geometry is unresolved in source. Exact depths, orthogonal planes and texture placements are agent completion, not traced/photo-verified cavity construction or evidence of block function."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-17"
   },
   "at": [
    0.5795,
    0.0675,
    0.6585
   ],
   "certainty": "inferred",
   "id": "notch-right-dark-right-return",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    0,
    -90,
    0
   ],
   "shape": {
    "size": [
     0.127,
     0.135
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Internal notch return/soffit geometry is unresolved in source. Exact depths, orthogonal planes and texture placements are agent completion, not traced/photo-verified cavity construction or evidence of block function."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-18"
   },
   "at": [
    -0.55,
    0.1345,
    0.66
   ],
   "certainty": "inferred",
   "id": "notch-left-dark-soffit",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    90,
    0,
    0
   ],
   "shape": {
    "size": [
     0.3,
     0.13
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Internal notch return/soffit geometry is unresolved in source. Exact depths, orthogonal planes and texture placements are agent completion, not traced/photo-verified cavity construction or evidence of block function."
  },
  {
   "artwork": {
    "asset": "notch-interior-photo",
    "face": "front",
    "slot": "booklet-page-19"
   },
   "at": [
    0.43,
    0.1345,
    0.6585
   ],
   "certainty": "inferred",
   "id": "notch-right-dark-soffit",
   "look": {
    "fill": "none",
    "line": "none"
   },
   "role": "artwork",
   "rotate": [
    90,
    0,
    0
   ],
   "shape": {
    "size": [
     0.3,
     0.127
    ],
    "type": "plane"
   },
   "source": "model-estimate",
   "stage": 4,
   "basis": [
    "identity-limits",
    "width",
    "depth",
    "height"
   ],
   "note": "Internal notch return/soffit geometry is unresolved in source. Exact depths, orthogonal planes and texture placements are agent completion, not traced/photo-verified cavity construction or evidence of block function."
  }
 ],
 "articulations": [],
 "labels": [],
 "assets": [
  {
   "id": "front-foot-left-photo",
   "path": "assets/front-foot-left-photo.png",
   "sha256": "6e3ea7c83920bbd7666dbbfdb0f47172fd72be75d9ea79780e60b4d282b54ecd",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "front-foot-middle-photo",
   "path": "assets/front-foot-middle-photo.png",
   "sha256": "22fb5e8b4c7d9ee28e51081a5ad42c6677575a9f0640b2a1ec640e5f2180e4ec",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "front-foot-right-photo",
   "path": "assets/front-foot-right-photo.png",
   "sha256": "1e49e2f0c0ba049c65aa4f2b90393a9aacb66541a308a8d3b24ebdcbdc398fb8",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "front-upper-left-photo",
   "path": "assets/front-upper-left-photo.png",
   "sha256": "93f01ad7031218f7d55575133f1c058fb19b4f0565d68c876964b134968c7bee",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "front-upper-right-photo",
   "path": "assets/front-upper-right-photo.png",
   "sha256": "2857b3f2945311f9f40a17eb2afcd766bccea1ea0c80b319ecdfbea46371767d",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "lid-front-photo",
   "path": "assets/lid-front-photo.png",
   "sha256": "640bab61463f0a415455fe33a1637df22752f1276292f10840565669a4683b38",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "lid-right-photo",
   "path": "assets/lid-right-photo.png",
   "sha256": "73aa0c3312ef43d148a0d17379a6a1973f3b276068271d0dd5372b6af6950eef",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "lid-top-photo",
   "path": "assets/lid-top-photo.png",
   "sha256": "cc2e405690d039d986243aa6c5042ed47a8ed085eda7a12b1577e820b5408e15",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "pale-front-photo",
   "path": "assets/pale-front-photo.png",
   "sha256": "b50136c520d2e6990e117d91eeaaec2ba9ad6936dbfbb3d617d9a277c2457cc2",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "pale-right-photo",
   "path": "assets/pale-right-photo.png",
   "sha256": "cf5d0012ed2ad1a548ad115f9b5e370dd4ac7a9f68bb6fe3b8511b2b5f6c216f",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "right-base-photo",
   "path": "assets/right-base-photo.png",
   "sha256": "e625a25a3968398648d3c70818a08a6946ec0748b42d1bb4d1a5dec4f002952a",
   "media_type": "image/png",
   "rights": "permitted",
   "provenance": "user_photo",
   "source": "photo"
  },
  {
   "id": "notch-interior-photo",
   "media_type": "image/png",
   "path": "assets/notch-interior-photo.png",
   "provenance": "user_photo",
   "rights": "permitted",
   "sha256": "c2501bcf5015b357bd99ea4f05cb9131730e0d324229972428c4f683eee9ee2e",
   "source": "photo"
  },
  {
   "id": "neutral-stone-photo",
   "media_type": "image/png",
   "path": "assets/neutral-stone-photo.png",
   "provenance": "user_photo",
   "rights": "permitted",
   "sha256": "5be700bb6f9942478e1431721064154ae3ec412576872e7286ebfde49d406df8",
   "source": "photo"
  }
 ],
 "anchors": {
  "base": {
   "point": [
    0,
    0,
    0
   ],
   "up": [
    0,
    1,
    0
   ]
  }
 },
 "presentation": {
  "framing": {
   "yaw": 35,
   "pitch": 20,
   "fit": 1.05
  },
  "views": [
   {
    "id": "photo",
    "label": "Photo comparison",
    "yaw": 40,
    "pitch": 14,
    "distance": 1.05
   }
  ],
  "atmosphere": {
   "haze": 0.12,
   "scanlines": false,
   "vignette": false,
   "grid": false,
   "projector": false,
   "motes": 0
  },
  "occlusion": "xray",
  "certainty_style": "subtle",
  "background": "deep",
  "float": 0,
  "still_pose": "closed"
 },
 "animation": {
  "assembly": {
   "style": "ceremony",
   "seconds": 6,
   "interference": false
  },
  "idle": {
   "life": "off",
   "events": [],
   "strength": 0
  },
  "camera": {
   "drift": 0,
   "breathe": 0
  },
  "reduced_motion": "still"
 },
 "authoring": {
  "tier": "masterpiece",
  "research": "done",
  "rounds": [
   {
    "round": 1,
    "result": "baseline",
    "minutes": 0.6,
    "changes": [
     "draft"
    ],
    "summary": "The reference's pale band is a substantial exposed strip immediately below the granite lid on both visible sides. In solid.png the correspon"
   },
   {
    "round": 2,
    "result": "kept",
    "minutes": 3.9,
    "changes": [
     "D1",
     "D2",
     "D3",
     "D4"
    ],
    "summary": "The exposed band is still too shallow relative to the thick lid. In still-front it is approximately 60 pixels high against an approximately "
   },
   {
    "round": 3,
    "result": "reverted",
    "minutes": 1.9,
    "changes": [
     "D1",
     "D5",
     "D6",
     "D7"
    ],
    "summary": "The nominal photo view is not matched to the reference: the lid's receding edges slope much more steeply and the top occupies much more vert"
   },
   {
    "round": 4,
    "result": "kept",
    "minutes": 2.9,
    "changes": [
     "D1",
     "D5",
     "D6",
     "D7"
    ],
    "summary": "The nominal matched view gives too much projected width to the front and too little to the right side. In the reference the front/right top-"
   }
  ],
  "sources": [
   "photo",
   "request"
  ],
  "review_rounds": 4,
  "outcome": "good",
  "next": [
   "Improve photo-view camera matching without changing the accepted hero.",
   "Resolve conflicting band-height critiques with a more precise photo comparison.",
   "Improve modest worn stone edge shaping and source-limited fine surface detail.",
   "Finish unseen rear stone surfaces as explicitly inferred."
  ],
  "identity": [
   {
    "feature": "Broad squat rectangular granite block with thick flat overhanging cap",
    "parts": [
     "thick-flat-lid",
     "front-notched-slab",
     "front-notched-slab-right",
     "side-slab-left"
    ],
    "source": "photo"
   },
   {
    "feature": "Narrow pale band with stone corner interruptions",
    "parts": [
     "inset-pale-band",
     "band-corner-pier-left",
     "photo-pale-front-band",
     "photo-pale-right-band"
    ],
    "source": "photo"
   },
   {
    "feature": "Two genuinely recessed black foot-level rectangular openings",
    "parts": [
     "front-notched-slab",
     "front-notched-slab-right",
     "notch-left-dark-back",
     "notch-right-dark-back"
    ],
    "source": "photo"
   },
   {
    "feature": "Photo-derived restrained pink-grey granite weathering and vertical slab join",
    "parts": [
     "photo-lid-top",
     "photo-front-upper-left",
     "photo-front-upper-right",
     "photo-right-base"
    ],
    "source": "photo"
   }
  ],
  "provenance_note": "Provenance-only audit; physical payload unchanged; historical independent judgement preserved in before backup and sealed checkpoints, not a fresh critique. Live critic removed because provenance edits invalidate scene hash; no new independent round. Prior limit and unresolved camera/band/texture defects remain in before backup, rounds and next; no geometry/camera fix performed.",
  "critic": {
   "scene_sha256": "1a1040fb5df181743c7d767da3829bc4d64397e8b4fd874c465b813e75eaa419",
   "verdict": "good",
   "scores": {
    "silhouette": 2,
    "proportions": 2,
    "identity": 2,
    "depth": 2,
    "composition": 2,
    "assembly": 3,
    "motion": 3,
    "density": 3,
    "honesty": 3
   },
   "round": 2,
   "defects": 5
  }
 }
}