Crucible Year Peter Yuill
Archive · full record

T_375

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

Recorded

Date
2026.09.12, day 258
Size
100 × 90 cm
Paper
S14, Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper
Inks
MB6, MB7, MB8, MC
Phase
P4 S14
Shown on the site
yes (V23 rating of 5.0 or higher)
Early storage triage
SHP: save, has potential (Peter's early system, since retired)

Measured · V23 (v23.8)

V23 rating
6.5
Form
2
Tonal depth
2
Layering
2.8
Composition
2
Material and surface
2
Ink cover
79%
Dark share
71%
Tonal steps
4
Flaws named by the reads
other 8, dead ink 1, 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.

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_375T_375, tone-stretchedT_375, classed by brightness
79%of the sheet carries ink
Black 71%Grey 24% 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: 0.055 (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
Layering2LEGIBLE3ORDERED3ORDERED3ORDERED3ORDERED2.8
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“This is a stepped-arc fan in the manner of R3, but one dense, flat black slab dominates it, covering the layering and crowding the right edge. An ordinary, sound sheet: rung 2 throughout.”

Form · BUILT

Outer arcs on the right and lower left follow the curve of the stroke. The central black quarter-fan is a heavy filled block with a stiff square corner at the lower right.

WEAKEST Bulky central black fan slab, filled rather than drawn

STRONGEST Outer right arc bands following the brush's sweep

Tonal depth · MODELLED

The upper-left and outer-right bands show grain, streaks and stepped density. The large central black reads almost flat; the stretched view shows only faint creases (modulation 0.055).

WEAKEST Central black mass, nearly uniform in colour view

STRONGEST Grey stepped bands in upper left and outer arcs

Layering · LEGIBLE

Translucent grey passes step outward legibly at the top-left and lower-left arcs. The final dense black covers most of the earlier layering in the centre.

WEAKEST Central black pass covers the earlier passes beneath it

STRONGEST Stacked translucent grey bands at the top-left edge

Composition · WORKING

One fan form fills about 79% of the sheet and pushes against the right edge. The curve leads the eye to the open lower-left corner, but the dark centre sits heavy and static.

WEAKEST Crowded, heavy right side; mass presses the edge

STRONGEST Arc sweep curving toward the open lower-left corner

Material and surface · SOUND

The ink is controlled throughout. The pink edging at the top is deliberate colour. Small dots and spatter sit on the left paper, away from the masses. No tide lines inside the black.

WEAKEST Scattered spatter and dots in the left margin

STRONGEST Dry-brush streaking at the right and bottom arc edges

FLAWS

2 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 2 distinct places, 10 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.

6 × OTHER, WATER STAIN“small stray ink dots and spatter on left pape…”4 × DEAD INK, OTHER“flat interior of central black fan”WATER STAINDEAD INKOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 4 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 15 edge segments, 20% crisp, 80% soft or bloomed, 0% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4
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.

none named
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 2.0
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 6.5.

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 RUNG2.16(2.0 + 2.0 + 2.8 + 2.0 + 2.0) ÷ 5
→
RAW5.321 + 2 × 2.16
→
RATING6.55 + 2.086 × (5.32 − 4.60)