Crucible Year Peter Yuill
Archive · full record

T_196

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
5.8
Form
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
2
Ink cover
53%
Dark share
21%
Tonal steps
4
Flaws named by the reads
other 7, water stain 4
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
8
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_196T_196, tone-stretchedT_196, classed by brightness
53%of the sheet carries ink
Black 21%Grey 46%Light 33% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

4 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).

0.300.751234 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 surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A gestural sheet close to R2. A fluent dry-brush grey arc and crescent play against blunt, flat black slabs. The layering is legible and the composition works. Small creases and milky patches keep it ordinary.”

Form · BUILT

The big grey arc and the bottom-right crescent follow the stroke well. The right black slab and the bottom-left blob are bulky, stiff fills.

WEAKEST Right vertical black slab, blunt and filled-in

STRONGEST Large grey arc following the brush's sweep

Tonal depth · MODELLED

The arc has striated grain and the centre has stippled, stepped density. The right and bottom-left black masses are uniform inside; modulation 0.047 is barely above flat.

WEAKEST Right vertical black slab, flat inside

STRONGEST Dry-brush banding inside the grey arc

Layering · LEGIBLE

A grey arc pass, a grey crescent and black gestural marks over them. The overlaps stay legible, but there are only about two passes and no built depth.

WEAKEST Black slabs simply sit over the grey

STRONGEST Black flecks over the grey arc at centre-left

Composition · WORKING

The arc and the lower crescent make a strong countermovement around shaped white at the centre-right. The bottom-left figure and the left spatter feel detached.

WEAKEST Isolated bottom-left black figure and spatter

STRONGEST Sweeping arc carrying the eye left to right

Material and surface · SOUND

The dry-brush grain is used well in the arc. Fold or crack lines cross the centre, and pale milky streaks sit inside the bottom-right grey mass. They are small but visible.

WEAKEST Crease lines and milky patches in lower crescent

STRONGEST Dry-brush grain shaping the grey arc

FLAWS

4 distinct places, 0 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 4 distinct places, 11 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.

1 × OTHER“Stray spatter drops on the left margin”5 × OTHER“Paper crease or crack lines running through t…”2 × WATER STAIN“pale watery edge at the right end of the grey…”3 × WATER STAIN, OTHER“Pale milky patches inside the grey crescent a…”WATER STAINOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 3 principal ink masses traced (cyan), 8 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 19 edge segments, 42% crisp, 11% soft or bloomed, 47% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7H8
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

4 steps: not applied
RULE 2A major flaw

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

none named
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 2.0
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 5.8.

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 RUNG2.00(2.0 + 2.0 + 2.0 + 2.0 + 2.0) ÷ 5
→
RAW5.001 + 2 × 2.00
→
RATING5.85 + 2.086 × (5.00 − 4.60)