Crucible Year Peter Yuill
Archive · full record

T_127

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

Recorded

Date
2026.03.22, day 84
Size
70 × 140 cm
Paper
S6, Qing Yi half-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
5.3
Form
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
1.4
Ink cover
75%
Dark share
24%
Tonal steps
4
Flaws named by the reads
water stain 4, mud 3, other 3, tide line 2, bloom 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_127T_127, tone-stretchedT_127, classed by brightness
75%of the sheet carries ink
Black 24%Grey 54%Light 22% 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: 0.049 (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 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 surface1FLAWED2SOUND1FLAWED2SOUND1FLAWED1.4

READ 1, IN ITS OWN WORDS

“A busy, layered sheet held together by a strong diagonal sweep. The slab forms are bulky, the dark masses are partly flat, and the bottom edge is crowded. A cloudy smudge at lower left lowers the material score. Overall an ordinary sheet, close to R2.”

Form · BUILT

The diagonal arc stroke follows the brush's travel. The central grey block and left slabs are bulky rectangles, and the bottom-right blot is a lumpy form.

WEAKEST Bulky grey slab block in the centre

STRONGEST Diagonal curved dark sweep crossing the centre

Tonal depth · MODELLED

The central mass shows streaking, grain and stepped density, and the diagonal shows graded tone. The right blot and lower-left dark are flat. Modulation is 0.049, only just above the flat threshold.

WEAKEST Bottom-right black blot, flat inside

STRONGEST Central grey block with grain and dry-brush streaks

Layering · LEGIBLE

Pale translucent planes, a mid-grey block and a dark diagonal can each be read. Toward the base of the centre the overlaps thicken and the order becomes less clear.

WEAKEST Central overlaps darken toward murk at the base

STRONGEST Pale grey planes under the dark diagonal stroke

Composition · WORKING

The diagonal gives the sheet a direction, and the top-right paper is shaped. Coverage is heavy at 75%. Masses jam against the bottom edge, and the left planes are static.

WEAKEST Crowded bottom edge with cut-off masses

STRONGEST Diagonal sweep driving from top-centre to lower right

Material and surface · FLAWED

A cloudy, muddy grey patch sits beside the lower-left dark mass, and the centre is murky. Fold creases and grime spots across the left planes show in the colour view.

WEAKEST Cloudy smudged wash at lower left

STRONGEST Dry-brush streaking within the central block

FLAWS

7 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 7 distinct places, 13 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 × TIDE LINE“faint wash edges in upper-left pale slab”1 × OTHER“creases and fold lines in the paper across th…”1 × OTHER“fold creases and grime across pale left planes”2 × BLOOM, MUD“cloudy milky wash inside central grey mass be…”5 × WATER STAIN, TIDE LINE · MAJOR“cloudy grey smudge beside lower-left dark mass”2 × MUD“murky fused base of central block”WHOLE SHEET · 1 × OTHERWATER STAINBLOOMTIDE LINEMUDOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 6 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 16 edge segments, 56% crisp, 25% soft or bloomed, 19% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6
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.

1 major flaw: applied
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 1.4
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 + 2.0 + 2.0 + 2.0 + 1.4) ÷ 5
→
RAW4.761 + 2 × 1.88
→
RATING5.35 + 2.086 × (4.76 − 4.60)