Crucible Year Peter Yuill
Archive · full record

T_222

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

Recorded

Date
2026.04.15, day 108
Size
97 × 180 cm
Paper
S11, Red Star Mo She Special Effect Xieyi, raw
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
Form
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
1
Ink cover
64%
Dark share
19%
Tonal steps
6
Flaws named by the reads
water stain 7, bloom 3, other 8
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
7
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_222T_222, tone-stretchedT_222, classed by brightness
64%of the sheet carries ink
Black 19%Grey 52%Light 29% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

6 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: 0.067 (under 0.045 reads as flat).

0.300.75123456 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

“The strong part is the dark fan of shards on the right, framed by an arc and grey washes. The upper-left wash is cloudy and blotched, the lower centre is empty, and stray drips land on it. An ordinary sheet, close to R2.”

Form · BUILT

Right dark mass has strong tapering shards following the stroke; left cluster's grey washes and the small dark blob at left are lumpy, so some bulk remains.

WEAKEST Upper-left grey wash: diffuse, cloudy lobe edges

STRONGEST Right-edge dark fan of tapering shards

Tonal depth · MODELLED

Six tonal steps; dark modulation 0.067. Right mass has streaks and graded greys; upper-left grey wash reads cloudy and uniform.

WEAKEST Pale grey left wash flat and cloudy inside

STRONGEST Right dark mass with streaked, graded interior

Layering · LEGIBLE

Pale arc wash, mid-grey shards and black strokes read as separate passes on the right; on the left the overlaps soften toward haze.

WEAKEST Left cluster overlaps blur into grey haze

STRONGEST Right mass: dark strokes over legible grey shards

Composition · WORKING

Two masses at the edges bracket a curving empty centre with circular dry-brush arc at top; lower-middle is dead paper with scattered drops.

WEAKEST Lower centre empty except scattered drips

STRONGEST Arc sweeping from left down to right mass

Material and surface · FLAWED

Upper-left grey wash is cloudy with mottled blotches and crease lines; speckled bloom spots in grey arc upper right; random drips across centre.

WEAKEST Cloudy blotched grey wash in upper left

STRONGEST Dry-brush arc texture at top centre

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, 18 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 × WATER STAIN, OTHER · MAJOR“cloudy mottled grey wash in upper-left mass”3 × WATER STAIN“pale grey cloudy wash fading across upper cen…”3 × BLOOM“speckled spots along lower edge of grey arc”1 × OTHER“dark blunt blot near left edge”4 × OTHER“scattered stray drips across centre 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), 7 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 14 edge segments, 14% crisp, 71% soft or bloomed, 14% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

6 steps: not applied
RULE 2A major flaw

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

3 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)