Crucible Year Peter Yuill
Archive · full record

T_267

The work as shown. Every value below comes from vae.db, the master database of the Crucible Year.

Recorded

Date
2026.04.26, day 119
Size
97 × 180 cm
Paper
S4, Tanxi half-raw, 6-foot
Inks
MB4, MB5, MB6
Phase
P2 The Switch
Shown on the site
yes (V23 rating of 5.0 or higher)
Early storage triage
SA: save, archive (Peter's early system, since retired)

Measured · V23 (v23.8)

V23 rating
5
Form
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
1
Ink cover
81%
Dark share
65%
Tonal steps
3
Flaws named by the reads
ring 5, water stain 7, other 3, tide line 1
The V23 rating runs from 1 to 9, with 5 the middle of this body of work. It is the engine's reading, and the reference the archive is measured against.

Older engine

V7
7
From an earlier engine (V7). Its scale differs from V23's, so it is only ever compared with other readings by the same engine.

How the number was made

Read by the Visual Analysis Engine, version 23.8, on 2026.10.06: measured by code, then read 5 times by Claude Opus 5.5 against three reference paintings (R1 to R3), each read independent of the others. How the engine works.

WHAT THE CODE SEES

Three views of one sheet.

Left, the photograph. Centre, the tone stretch the model is shown beside it: the darkest 45% of tones spread over the whole range, so flat black, banding and stains show. Right, every pixel as the measuring code classes it: cyan black ink, deep teal translucent grey, stone the palest ink, near black bare paper.

T_267T_267, tone-stretchedT_267, classed by brightness
81%of the sheet carries ink
Black 65%Grey 26%Light 9% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

3 families of tone.

Every inked pixel's brightness in 64 bins, smoothed; each circled peak holds at least 4% of the ink. Life inside the black: 0.050 (under 0.045 reads as flat).

0.300.75123 BLACK INK TRANSLUCENT GREYS PALEST INK, 0.88 LUMINANCE OF EVERY INKED PIXEL, 64 BINS. PAPER (ABOVE 0.88) IS LEFT OUT.
FIVE READS

Five reads, one answer.

Each quality placed on its ladder by each read, and the mean the engine keeps.

READ 1READ 2READ 3READ 4READ 5MEAN
Form2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“An ordinary sheet: a bowl-shaped composition of a dark fan and a curved sweep with a heavy, blocky centre. The darks show some modelling, but a ring stain in the central slab is a clear accident.”

Form · BUILT

The left fan and the right curved sweep hold their walls and follow the arc. The central rectangle and the grey slab beside it are blocky and stiff.

WEAKEST Blunt rectangular dark block in left-centre

STRONGEST Right-hand curved sweep of layered strokes

Tonal depth · MODELLED

Modulation 0.050 is just above flat. The tone-stretched view shows faint grain and fold lines in the left fan. The right sweep is banded, and the central block is mostly uniform.

WEAKEST Central dark rectangle interior largely flat

STRONGEST Right sweep with banded grey-to-black stroke density

Layering · LEGIBLE

There are three tonal steps. Grey arcs and pale washes sit under the darker passes and stay readable at the edges. The darks mostly cover rather than build through translucency.

WEAKEST Dark central block covers earlier grey passes

STRONGEST Translucent grey arcs under the left fan

Composition · WORKING

Two masses curve into a bowl around the open white top, which gives direction. The white crack in the centre and the dense, heavy lower half crowd the arrangement.

WEAKEST Crowded heavy lower band, central gap awkward

STRONGEST Bowl-shaped arc framing open top paper

Material and surface · FLAWED

There is a clear ring-shaped blot in the grey slab at centre, visible in the colour view. Small tide spots sit in the top paper, and crease lines show in the left fan.

WEAKEST Ring stain inside central grey slab

STRONGEST Dry-brush feathered edges on right sweep

FLAWS

5 distinct places, 2 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 5 distinct places, 16 mentions in all across 5 reads; the number in each ninth is how many times a flaw was named there. Reads agreeing on a place strengthen the evidence for one flaw; they do not multiply it. A major flaw holds Material and surface at rung 1.

5 × WATER STAIN“small drip tide spots on open paper top centre”3 × OTHER, TIDE LINE“crease and fold lines across left dark fan”6 × RING, WATER STAIN · MAJOR“round ring blot inside central grey slab”1 × RING · MAJOR“Hard ring inside grey mass left of the white …”WHOLE SHEET · 1 × OTHERWATER STAINRINGTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 2 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 16 edge segments, 31% crisp, 50% soft or bloomed, 19% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

3 steps: not applied
RULE 2A major flaw

Material held at rung 1. Mild waves in the unmounted paper are never a flaw.

5 major flaws: applied
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 1.0
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 5.0.

Engine v23.8, 5 reads. Fixed arithmetic, the same for every painting; the constants were set on 24 randomly chosen paintings so the median sheet scores 5. The scale is relative to this archive, not to painting in general, and a difference of less than half a point between two paintings is noise.

MEAN RUNG1.80(2.0 + 2.0 + 2.0 + 2.0 + 1.0) ÷ 5
→
RAW4.601 + 2 × 1.80
→
RATING5.05 + 2.086 × (4.60 − 4.60)