Crucible Year Peter Yuill
Archive · full record

T_219

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

Recorded

Date
2026.04.15, day 108
Size
97 × 180 cm
Paper
S11, Red Star Mo She Special Effect Xieyi, raw
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
80%
Dark share
23%
Tonal steps
5
Flaws named by the reads
bloom 8, water stain 4, tide line 3
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
4
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_219T_219, tone-stretchedT_219, classed by brightness
80%of the sheet carries ink
Black 23%Grey 63%Light 14% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

5 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: 0.047 (under 0.045 reads as flat).

0.300.7512345 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

“Energetic gestural sheet like R2: a strong right arc sweeping into a dark central mass, with lively splatter. Left washes are crowded and blotchy, and reticulated blooms mar the surface. Ordinary overall.”

Form · BUILT

Right arc stroke follows brush travel; central dark mass and oval blot hold walls but are blobby; left grey washes are bulky, cloudy shapes.

WEAKEST Lower-left grey wash slab, bulky and lobed

STRONGEST Right sweeping curved stroke rising to top

Tonal depth · MODELLED

Five tonal steps; right arc and left washes show grain and streaking; dark interior modulation just over threshold; oval blot and central dark mass fairly flat.

WEAKEST Bottom-centre oval black blot, flat inside

STRONGEST Right arc with streaked greys and grain

Layering · LEGIBLE

Pale circular washes, grey arcs and later black strokes read as separate passes; at upper left overlaps blur into mottled cloud, order less clear.

WEAKEST Upper-left washes merge into cloudy overlaps

STRONGEST Dark central stroke over grey arc

Composition · WORKING

Large arc from top right sweeps down through centre-bottom dark mass; central paper gap with drip column shaped; left half crowded and diffuse.

WEAKEST Busy upper-left quadrant crowded and undirected

STRONGEST Sweeping arc carrying eye from top right

Material and surface · FLAWED

Reticulated, blotchy bloom textures in upper-left and upper-right grey washes, visible in colour view beside principal masses; splatter otherwise lively and controlled.

WEAKEST Mottled reticulated wash patches upper left and right

STRONGEST Splatter and dry-brush edges on right arc

FLAWS

3 distinct places, 1 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 3 distinct places, 15 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 × BLOOM, TIDE LINE · MAJOR“reticulated mottled grey wash upper left”5 × BLOOM, WATER STAIN, TIDE LINE“spotty mottled pale wash beside right arc”5 × WATER STAIN, BLOOM“cloudy pale patch in lower-left grey wash”WATER STAINBLOOMTIDE LINEMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 3 principal ink masses traced (cyan), 12 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 20 edge segments, 55% crisp, 20% soft or bloomed, 25% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7H8H9H10H11H12
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

5 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)