Crucible Year Peter Yuill
Archive · full record

T_277

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
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
5.5
Form
2.2
Tonal depth
2.2
Layering
2
Composition
2.2
Material and surface
1
Ink cover
79%
Dark share
59%
Tonal steps
4
Flaws named by the reads
bloom 5, other 6, ring 5, water stain 3, tide line 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
6
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_277T_277, tone-stretchedT_277, classed by brightness
79%of the sheet carries ink
Black 59%Grey 33%Light 8% 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: 0.059 (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 2 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
Form2BUILT2BUILT2BUILT2BUILT3FLUENT2.2
Tonal depth2MODELLED3DEEP2MODELLED2MODELLED2MODELLED2.2
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING3COMMANDING2WORKING2WORKING2WORKING2.2
Material and surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“A bold concentric arch with shaped central void and readable stepped greys. The dark band is bulky and cloudy, and blooms at the top-right edge are a visible accident. Overall ordinary, near R2.”

Form · BUILT

The concentric arch reads clearly and its bands follow the curve. The dark main band is bulky, its top-right outer edge dissolves, and the stepped inner ends look cut off and stiff.

WEAKEST Ragged, blotchy outer edge of the arch at top right

STRONGEST Stepped inner grey bands that follow the arc's travel

Tonal depth · MODELLED

Interior modulation is 0.059 with four tonal steps. The inner greys are banded and graded, but the large upper-left dark reads as cloudy mottling rather than modelled depth.

WEAKEST Cloudy, mottled interior of the upper-left dark band

STRONGEST Graded grey bands stepping inward at lower left

Layering · LEGIBLE

Two or three passes can be read: pale inner bands, a mid grey, then the black. The black largely covers what is underneath instead of building depth through it.

WEAKEST Dark main band covers earlier passes beneath it

STRONGEST Translucent inner bands overlapping at the centre-right steps

Composition · WORKING

The single arch has strong curved movement and shapes the central void. Coverage is heavy at 79%, the bottom-right paper is leftover, and the top-right edge is weak.

WEAKEST Leftover bottom-right corner and messy top-right edge

STRONGEST Semicircular void of empty paper shaped by the arch

Material and surface · FLAWED

Blotchy blooms and runs sit against the main mass at top right and are visible in colour. There are stray spots in the mid band and faint rings near the bottom centre.

WEAKEST Watery blooms and drips along the top-right outer edge

STRONGEST Dry-brush terminations of the black band at right

FLAWS

7 distinct places, 2 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, 20 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“cloudy mottling inside the upper-left dark ba…”4 × BLOOM · MAJOR“outer edge of the arch, top right, with runs …”1 × OTHER“small blots on the inner grey band, left”5 × OTHER, WATER STAIN“stray ink spots in the grey band near the cen…”3 × BLOOM, OTHER, WATER STAIN · MAJOR“Ink bleeding beyond the outer edge of the rig…”5 × RING“faint circular marks in the paper at bottom c…”1 × TIDE LINE“Pale water marks on the paper below the right…”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), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 15 edge segments, 87% crisp, 7% soft or bloomed, 7% 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.

4 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 5.5.

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 RUNG1.92(2.2 + 2.2 + 2.0 + 2.2 + 1.0) ÷ 5
→
RAW4.841 + 2 × 1.92
→
RATING5.55 + 2.086 × (4.84 − 4.60)