Crucible Year Peter Yuill
Archive · full record

T_119

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

Recorded

Date
2026.03.19, day 81
Size
50 × 100 cm
Paper
S2, Tanxi half-raw, 3-foot
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
5.8
Form
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
2
Ink cover
53%
Dark share
40%
Tonal steps
4
Flaws named by the reads
water stain 5, other 5
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_119T_119, tone-stretchedT_119, classed by brightness
53%of the sheet carries ink
Black 40%Grey 36%Light 23% 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: 0.040 (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, 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 surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A gestural sheet in which a black diagonal crosses two arcs, with good dry-brush energy. The slab interiors are flat and the black mostly covers the passes beneath it. Ordinary across all five ladders, closest to R2.”

Form · BUILT

The grey arc on the right follows the brush's travel. The upper part of the vertical black bar is a stiff rectangle. The left dark arc holds its shape but is bulky.

WEAKEST Top of vertical black slab is blunt, rectangular

STRONGEST Grey right arc tapering to a point

Tonal depth · MODELLED

The left arc grades from black down into grainy grey. The vertical black slab is flat inside (dark-interior modulation 0.040 is under the 0.045 flat threshold). The right grey arc is fairly even.

WEAKEST Upper black slab interior flat

STRONGEST Left arc grading from black to grey wash

Layering · LEGIBLE

Three passes can be told apart: a pale grey wash, the dark arcs, then the black vertical. Where the black bar crosses the left arc it mostly hides it.

WEAKEST Black slab mostly covers the arc beneath

STRONGEST Grey arc under the black diagonal crossing

Composition · WORKING

The black diagonal set against the two arcs makes a strong X-like movement. The empty paper top-left and right is shaped. The lower left is vague.

WEAKEST Lower-left grey wash area is vague

STRONGEST Diagonal black thrust crossing two arcs

Material and surface · SOUND

The dry-brush streaks and spatter are lively and controlled. The rectangular pale wash near the lower centre and the cloudy grey lower left are mild but not disruptive.

WEAKEST Pale cloudy wash patch lower left

STRONGEST Dry-brush streaks dragging from black slab

FLAWS

4 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 4 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.

1 × WATER STAIN“pale grey stain patches on the paper right of…”6 × OTHER, WATER STAIN“faint bluish discolouration at the bottom lef…”1 × WATER STAIN“pale rectangular wash patch right of black ba…”2 × OTHER“faint bluish tint at bottom right edge”WATER STAINOTHER
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 16 edge segments, 31% crisp, 25% soft or bloomed, 44% 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 5.8.

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 RUNG2.00(2.0 + 2.0 + 2.0 + 2.0 + 2.0) ÷ 5
→
RAW5.001 + 2 × 2.00
→
RATING5.85 + 2.086 × (5.00 − 4.60)