Crucible Year Peter Yuill
Archive · full record

T_315

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

Recorded

Date
2026.05.24, day 147
Size
97 × 180 cm
Paper
S10, Red Star Mo She Imitation Antique Chu bark, Exhibition Edition
Inks
MB4, MB5, MB6
Phase
P3 The Floor Rises
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
1.6
Layering
2.2
Composition
2.2
Material and surface
2
Ink cover
69%
Dark share
60%
Tonal steps
5
Flaws named by the reads
other 5, water stain 6
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.

Peter's own rating

Rating
8
Peter's rating is his own eye, not the engine's, and he never gives a 10.
“There is always something that can be done better.”
Peter Yuill · 2026.07.02

Older engine

V10C
9
From an earlier engine (V10C). 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_315T_315, tone-stretchedT_315, classed by brightness
69%of the sheet carries ink
Black 60%Grey 31%Light 9% 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: 0.040 (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, agreeing on 2 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
Form2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth1THIN1THIN2MODELLED2MODELLED2MODELLED1.6
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE3ORDERED2.2
Composition2WORKING2WORKING3COMMANDING2WORKING2WORKING2.2
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“This sheet takes up R3's radiating-arc motif but has flatter black cores, stiffer slab blocks at the bottom left and a less resolved layering. The pale centre and the splattered fan tops hold it near ordinary.”

Form · BUILT

Both fans are coherent arc forms with holding walls; the right fan's curved strokes follow the brush, but the left fan's lower rectangle and squared slabs are stiff.

WEAKEST Blunt rectangular block at bottom left of left fan

STRONGEST Right fan's curved bands following the arc of travel

Tonal depth · THIN

Dark modulation 0.040, below the flat threshold; the black cores of both fans are uniform inside, and tone changes mainly at band edges. Greys live only in the centre.

WEAKEST Flat black interior of left fan upper block

STRONGEST Pale grey arc banding in central circle

Layering · LEGIBLE

The grey wedges stepping toward the centre and the pale circle overlap legibly; in the black cores later passes mostly cover the earlier ones.

WEAKEST Dark fan cores where later black covers earlier passes

STRONGEST Translucent grey overlaps in the central circle and left fan

Composition · WORKING

The two fans converge on a pale circular centre, and the shaped empty paper above gives direction; the bottom corners are dense and the two halves sit as matching blocks.

WEAKEST Heavy, near-symmetrical dark masses crowding the lower corners

STRONGEST Central pale circle linking the two fans

Material and surface · SOUND

Ink is controlled, with deliberate splatter at the top edges. The paper is yellowed overall and the centre has slightly cloudy washes, but there is no stain in the dark masses.

WEAKEST Cloudy grey washes in the central circle

STRONGEST Dry-brush splatter and bristle edges on fan tops

FLAWS

3 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 3 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 × WATER STAIN“pale smudge on paper at left edge beside fan”5 × WATER STAIN“cloudy pale wash patches in central circle”WHOLE SHEET · 5 × OTHERWATER STAINOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 6 principal ink masses traced (cyan), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 31 edge segments, 29% crisp, 58% soft or bloomed, 13% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3
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.

none named
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 1.6
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 + 1.6 + 2.2 + 2.2 + 2.0) ÷ 5
→
RAW5.001 + 2 × 2.00
→
RATING5.85 + 2.086 × (5.00 − 4.60)