Crucible Year Peter Yuill
Archive · full record

T_199

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
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
1.8
Ink cover
66%
Dark share
18%
Tonal steps
3
Flaws named by the reads
tide line 4, bloom 5, other 2, 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
9
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_199T_199, tone-stretchedT_199, classed by brightness
66%of the sheet carries ink
Black 18%Grey 35%Light 47% 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: 0.044 (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
Form2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND1FLAWED2SOUND1.8

READ 1, IN ITS OWN WORDS

“A fluent striated arc balanced against a flat, bulky black slab. The left side is crowded and the pale washes there are cloudy. An ordinary sheet overall, close to R2.”

Form · BUILT

Upper arc's outline follows the stroke's travel. Lower-left curve holds its shape. The dark slab is a heavy rectangle ending in pooled blobs, and the left wedges are stiff.

WEAKEST Bottom-right dark slab, bulky with blobby finger ends

STRONGEST Great grey arc following the brush's sweep

Tonal depth · MODELLED

Bristle banding and dry-brush speckle model the arc and the left greys. The measured modulation of the bottom-right black mass is under the flat threshold. Three tonal steps.

WEAKEST Dark slab interior flat, modulation 0.044

STRONGEST Striated grey arc with bristle banding

Layering · LEGIBLE

Three passes: pale arc, mid-grey left wedges and curve, black slab. Overlaps at upper left stay readable but get busy. The black slab sits mostly alone.

WEAKEST Left cluster where grey passes crowd together

STRONGEST Pale arc passing under darker left strokes

Composition · WORKING

The arc carries the eye from upper left to the black slab at lower right, and the empty paper inside the arc is shaped. The left third is cluttered and its pale passes are weak.

WEAKEST Crowded, fussy left edge cluster

STRONGEST Sweeping arc enclosing shaped white space

Material and surface · SOUND

The dry-brush grain in the arc is used well. At bottom left, a pale cloudy wash with ringed edges sits beside the curved stroke. Pooled blobs at the slab ends. Scattered spatter.

WEAKEST Cloudy, tide-edged pale wash at bottom left

STRONGEST Dry-brush striations used across the arc

FLAWS

6 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 6 distinct places, 12 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“pale cloudy ringed wash at far left edge”3 × BLOOM“pooled blobs at right end of the dark slab”5 × TIDE LINE, WATER STAIN“pale cloudy wash with ringed edges beside the…”1 × BLOOM“bloomed ending of the curved grey stroke near…”1 × OTHER“pooled blob lobes at the right end of the dar…”WHOLE SHEET · 1 × OTHERWATER STAINBLOOMTIDE LINEOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 4 principal ink masses traced (cyan), 4 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 9 edge segments, 11% crisp, 78% soft or bloomed, 11% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4
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(2.0 + 2.0 + 2.0 + 2.0 + 1.8) ÷ 5
→
RAW4.921 + 2 × 1.96
→
RATING5.75 + 2.086 × (4.92 − 4.60)