Crucible Year Peter Yuill
Archive · full record

T_265

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

Recorded

Date
2026.04.26, day 119
Size
97 × 180 cm
Paper
S4, Tanxi half-raw, 6-foot
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
5.3
Form
2
Tonal depth
2.2
Layering
2
Composition
2
Material and surface
1.2
Ink cover
79%
Dark share
47%
Tonal steps
4
Flaws named by the reads
bloom 4, other 11, 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
6
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_265T_265, tone-stretchedT_265, classed by brightness
79%of the sheet carries ink
Black 47%Grey 34%Light 19% 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: 0.057 (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, agreeing on 3 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 depth2MODELLED2MODELLED3DEEP2MODELLED2MODELLED2.2
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED1FLAWED2SOUND1FLAWED1FLAWED1.2

READ 1, IN ITS OWN WORDS

“A rotational composition of three dark fan segments with some tonal life in the top arc. The forms are bulky, the passes are mostly covering, and cloudy halos and blots sit around the masses. An ordinary sheet near R2.”

Form · BUILT

Three curved fan segments with walls that hold; the top arc follows the stroke well, but the bottom-left and right wedges are bulky and slab-like.

WEAKEST Bottom-left fan segment, blunt cut top edge

STRONGEST Top arc segment following the curved brush travel

Tonal depth · MODELLED

Modulation is 0.057. The top arc shows streaks and stepped density, and the right wedge is mottled. The bottom-left mass is more uniform. Four tonal steps.

WEAKEST Bottom-left segment interior, fairly even grey

STRONGEST Top arc with banded, streaked density shifts

Layering · LEGIBLE

There are two passes: pale grey splashed washes under dark fan segments. The overlaps can be read at the edges, but the dark passes mostly cover the earlier ones.

WEAKEST Black segments largely cover the grey underlayers

STRONGEST Grey halo washes legible beneath the top arc

Composition · WORKING

The three segments imply a circular rotation, and the central white is shaped. The lower right feels leftover and spotted, and the sheet is crowded at the top edge.

WEAKEST Lower-right empty quarter with scattered drips

STRONGEST Rotational swing of the three segments around the centre

Material and surface · FLAWED

Cloudy grey bloom washes cling to the top arc and the bottom-left segment. There are crease cracks across the top arc and stray blots at the lower right.

WEAKEST Cloudy splashed grey halos beside the dark masses

STRONGEST Dry-brush grain within the top arc

FLAWS

6 distinct places, 2 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 6 distinct places, 19 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.

1 × WATER STAIN“cloudy grey halo left of top arc”5 × OTHER · MAJOR“crease cracks through the top arc's dark inte…”3 × BLOOM“cloudy grey halo below and left of the top arc”1 × OTHER“speckled grey patch in central white space”4 × WATER STAIN, BLOOM · MAJOR“milky grey wash at the left of the bottom-lef…”5 × OTHER“stray drips and blots in the lower-right paper”WATER STAINBLOOMOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 2 principal ink masses traced (cyan), 2 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 18 edge segments, 39% crisp, 56% soft or bloomed, 6% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2
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.

2 major flaws: applied
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 1.2
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 5.3.

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 RUNG1.88(2.0 + 2.2 + 2.0 + 2.0 + 1.2) ÷ 5
→
RAW4.761 + 2 × 1.88
→
RATING5.35 + 2.086 × (4.76 − 4.60)