Crucible Year Peter Yuill
Archive · full record

T_293

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

Recorded

Date
2026.05.07, day 130
Size
97 × 180 cm
Paper
S12, Red Star Mo She Special Effect Xieyi, half-raw
Inks
MB6, MB7, MB8
Phase
P2 The Switch
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
5.3
Form
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
1.4
Ink cover
85%
Dark share
42%
Tonal steps
4
Flaws named by the reads
water stain 8, tide line 4, other 6, 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
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_293T_293, tone-stretchedT_293, classed by brightness
85%of the sheet carries ink
Black 42%Grey 44%Light 14% 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: 0.052 (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 surface1FLAWED2SOUND1FLAWED1FLAWED2SOUND1.4

READ 1, IN ITS OWN WORDS

“A spiral of grey and black arcs set against a right vertical stroke: it has a clear direction and some grain in the grey passes. The black core is flat and its end is blunt, and pale blots and drips near the centre weaken the surface.”

Form · BUILT

Large spiral arc and right vertical stroke are coherent and follow brush travel; black inner arc ends in a stubby blunt block with drips at centre.

WEAKEST Blunt, dripping terminus of black inner arc

STRONGEST Broad outer grey arc sweeping left to top

Tonal depth · MODELLED

Outer arc and right stroke show bristle streaks, spotting and stepped greys; inner black arc near centre is largely uniform. Modulation 0.052 just above flat threshold.

WEAKEST Dense black inner arc core reads flat

STRONGEST Outer grey arc with bristle banding and grain

Layering · LEGIBLE

Grey outer pass, black inner pass and pale lower washes are distinguishable; overlaps legible but sequence does not build much depth beyond two or three passes.

WEAKEST Pale lower-right washes faint and indistinct

STRONGEST Black inner arc laid over grey outer arc

Composition · WORKING

Spiral drives the eye around a shaped white centre, answered by the right vertical stroke; lower right pale zone is vague and weakly held.

WEAKEST Lower-right pale area loose and undefined

STRONGEST Spiral sweep around shaped central white

Material and surface · FLAWED

Pale cloudy wash blots and tide edges sit against the grey mass end near centre-right; drips and stray spatter below black arc; milky patch lower left inside arc.

WEAKEST Cloudy blots beside the black arc terminus

STRONGEST Dry-brush bristle edges on right vertical stroke

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, 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.

2 × OTHER“paper crease lines through grey arc”6 × WATER STAIN, OTHER, TIDE LINE · MAJOR“pale cloudy blot at end of grey arc right of …”3 × BLOOM, WATER STAIN“milky spotted patch inside lower-left arc”4 × WATER STAIN, OTHER“faint grey blotches on the paper below the bl…”4 × TIDE LINE, WATER STAIN“faint wash edges in pale lower-right area”WATER STAINBLOOMTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 2 principal ink masses traced (cyan), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 19 edge segments, 21% crisp, 58% soft or bloomed, 21% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3
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.

2 major flaws: 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)