Crucible Year Peter Yuill
Archive · full record

T_193

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
5.7
Form
1.8
Tonal depth
2
Layering
2
Composition
2
Material and surface
2
Ink cover
67%
Dark share
26%
Tonal steps
3
Flaws named by the reads
other 4, bloom 4, water stain 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
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_193T_193, tone-stretchedT_193, classed by brightness
67%of the sheet carries ink
Black 26%Grey 44%Light 30% 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: 0.049 (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, agreeing on 4 of 5 qualities.

Each quality placed on its ladder by each read, and the mean the engine keeps. Where reads differ, they differ by one rung; close calls resolve down.

READ 1READ 2READ 3READ 4READ 5MEAN
Form1BLUNT2BUILT2BUILT2BUILT2BUILT1.8
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“An energetic gestural sheet close to R2. The grey arcs are fluent, but the principal black masses are blobby and fairly flat. The layering reads, though without depth. The lower left is weak, and the surface is mostly sound.”

Form · BLUNT

The grey arcs follow the brush, but the top-left black mass and the top-right mass have bulky, lobed edges. The lower-right wedge is a stiff slab.

WEAKEST Top-left black mass: lobed blob without a stroke path

STRONGEST Grey sweeping arc strokes across the centre

Tonal depth · MODELLED

Interior modulation of 0.049 is only just above flat. The lower-right wedge and grey arcs show grain and streaks. The top-left black is mostly uniform inside.

WEAKEST Top-left black mass: nearly flat inside

STRONGEST Lower-right wedge with grained grey interior

Layering · LEGIBLE

There are grey arc washes, a black-mass pass and spatter. The overlaps at the right stay readable, but the passes do not build ordered depth.

WEAKEST Black masses cover the grey passes beneath them

STRONGEST Translucent grey arcs under the right-hand black masses

Composition · WORKING

A swirling arc carries the eye from the top-left mass to the right cluster. The lower left is leftover paper with scattered spatter, and the right side feels crowded.

WEAKEST Lower-left quarter: empty paper and scattered spatter

STRONGEST Sweeping arc linking the left and right dark masses

Material and surface · SOUND

The ink is generally controlled and the dry-brush streaks are used well. There are small brownish specks on the lower left and fuzzy, bled drops at the bottom centre. Neither sits in a principal mass.

WEAKEST Blurred, soft-edged drops at bottom centre

STRONGEST Dry-brush streaking in the right-hand grey arcs

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, 9 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 × BLOOM“soft bleeding lobes around top-left black mass”4 × OTHER, WATER STAIN“small yellowish specks on paper at left edge”1 × OTHER“small brownish specks on the paper, lower left”3 × BLOOM“soft bled drops in the column of spatter”WATER STAINBLOOMOTHER
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 18 edge segments, 39% crisp, 22% soft or bloomed, 39% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7H8
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.

none named
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 1.8
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 5.7.

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 RUNG1.96(1.8 + 2.0 + 2.0 + 2.0 + 2.0) ÷ 5
→
RAW4.921 + 2 × 1.96
→
RATING5.75 + 2.086 × (4.92 − 4.60)