Crucible Year Peter Yuill
Archive · full record

T_210

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

Recorded

Date
2026.04.12, day 105
Size
97 × 180 cm
Paper
S12, Red Star Mo She Special Effect Xieyi, half-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
78%
Dark share
37%
Tonal steps
6
Flaws named by the reads
bloom 3, ring 4, water stain 6, tide line 4, other 2
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
4
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_210T_210, tone-stretchedT_210, classed by brightness
78%of the sheet carries ink
Black 37%Grey 51%Light 12% 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: 0.053 (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

“A gestural sheet close to R2. The dark masses on both sides are joined by a dry-brush arc. The centre is cloudy and crowded, and drips and a ring-like arc mar the surface. Most ladders sit at the ordinary rung.”

Form · BUILT

The left black mass and the right fan stroke are nameable shapes with clear brush travel. The centre dark mass is ragged and partly dissolved, and the top-right grey slab is stiff.

WEAKEST centre dark mass, blotchy with a dissolved left edge

STRONGEST sweeping dry-brush arc linking left mass to right

Tonal depth · MODELLED

The left mass shows dry-brush streaks and creases in the stretched view. The right fan has stepped greys. The centre black is mostly flat. Modulation is 0.053, barely above the flat line.

WEAKEST centre dark mass, flatter inside

STRONGEST left black mass, with grain and streaks inside

Layering · LEGIBLE

The grey slabs at top right and top centre sit under the dark strokes and stay readable. Near the centre the overlaps go cloudy and the order of passes is harder to read.

WEAKEST centre, where grey wash and black merge cloudily

STRONGEST top-right translucent slabs under the dark fan

Composition · WORKING

The masses at left and right are joined by a sweeping arc, and the pale top-centre paper is shaped. With 78% coverage the sheet feels crowded, and the centre is muddled.

WEAKEST centre area, crowded and cloudy

STRONGEST sweeping arc carrying the eye left to right

Material and surface · FLAWED

Scattered round drips and blots at top centre, a ring-like grey arc at bottom right, and a cloudy wash beside the centre dark are all visible in the colour view.

WEAKEST drips and rings on the pale paper

STRONGEST dry-brush grain in the left mass

FLAWS

6 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 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“milky pale patches in the upper-left grey wash”6 × WATER STAIN, OTHER, TIDE LINE, RING“round drips and blots across the upper paper”1 × TIDE LINE“hard edges on the grey slab at top right”1 × WATER STAIN“milky grey patches inside left-centre washes”5 × BLOOM, WATER STAIN · MAJOR“cloudy grey wash on the left side of the cent…”5 × RING, TIDE LINE“curved grey arc below the right fan”WATER STAINBLOOMRINGTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 9 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 17 edge segments, 41% crisp, 24% soft or bloomed, 35% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7H8H9
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.

5 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)