Crucible Year Peter Yuill
Archive · full record

T_183

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

Recorded

Date
2026.04.08, day 101
Size
97 × 180 cm
Paper
S11, Red Star Mo She Special Effect Xieyi, raw
Inks
MB1, MB2, MB3
Phase
P1 Warm-up
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
58%
Dark share
23%
Tonal steps
5
Flaws named by the reads
ring 9, other 6, water stain 3, bloom 2
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_183T_183, tone-stretchedT_183, classed by brightness
58%of the sheet carries ink
Black 23%Grey 55%Light 22% 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: 0.044 (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

“Gestural sweeping arc around a strong white void, close to R2. The left mass is clotted and pocked with ringed drops, and the darks are mostly flat inside. Ordinary sheet with a material weakness.”

Form · BUILT

The big right arc follows the brush's travel and tapers cleanly. The left mass is clotted, with blobby dark lobes, and the bottom-centre dark lump is bulky.

WEAKEST Bottom-centre dark blob and left-edge clotted patches

STRONGEST Right sweeping arc ending in tapered dark tip

Tonal depth · MODELLED

The left grey field has grain and veining, and the top-right dark band shows banding. The right-tip and bottom darks are flat inside; modulation is 0.044, below the flat threshold.

WEAKEST Right arc dark terminus is flat inside

STRONGEST Left grey mass with grain, veining and stepped density

Layering · LEGIBLE

The translucent grey arc pass shows under the dark strokes, top right, and the order can be read. On the left, the passes clot together and are less legible.

WEAKEST Left mass where darks clot into the grey

STRONGEST Dark band laid over translucent grey arc, top right

Composition · WORKING

The large arc carries the eye from left to right around a shaped white void in the centre. The left third is crowded and busy with spatter; the bottom-right drops are a weak afterthought.

WEAKEST Crowded, spattered left third

STRONGEST Sweeping arc enclosing a shaped white void

Material and surface · FLAWED

The left grey wash carries many ringed, tide-edged drops and pocks beside the principal masses, plainly visible in the colour view. There is also a white void in the right dark tip.

WEAKEST Ringed drops and pocked spots in left grey wash

STRONGEST Dry-brush streaking along top of arc

FLAWS

5 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 5 distinct places, 20 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.

7 × RING, BLOOM, WATER STAIN, OTHER · MAJOR“ringed drops and pocks in the left grey wash”5 × RING“small ringed drops near the central white voi…”4 × OTHER“white hole inside the dark tip of the right a…”3 × WATER STAIN, RING“ringed blots at the bottom-left edge”1 × OTHER“stray blots in white space, lower right”WATER STAINBLOOMRINGOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 4 principal ink masses traced (cyan), 5 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 21 edge segments, 76% crisp, 19% soft or bloomed, 5% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5
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.

4 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)