Crucible Year Peter Yuill
Archive · full record

T_278

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
5.7
Form
2.2
Tonal depth
2
Layering
2.4
Composition
2.2
Material and surface
1
Ink cover
88%
Dark share
64%
Tonal steps
4
Flaws named by the reads
bloom 6, water stain 4, other 5, tide line 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
8
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_278T_278, tone-stretchedT_278, classed by brightness
88%of the sheet carries ink
Black 64%Grey 29% 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: 0.063 (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
Form3FLUENT2BUILT2BUILT2BUILT2BUILT2.2
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering3ORDERED2LEGIBLE2LEGIBLE2LEGIBLE3ORDERED2.4
Composition2WORKING2WORKING2WORKING2WORKING3COMMANDING2.2
Material and surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“Fluent spiral of layered arcs with legible pass order and strong rotational movement; crowded coverage, flat lower diagonal and bloomy wash runs at lower-left hold it near the archive average.”

Form · FLUENT

Outer spiral arc, inner dry-brush arc and long diagonal sweep all follow brush travel; small bottom-right stroke exact; only lower-left terminus softens into wash.

WEAKEST Ragged dissolving lower-left end of outer arc

STRONGEST Inner dry-brush black arc ending in crisp hook

Tonal depth · MODELLED

Outer arc shows bands and stepped density; inner arc has dry-brush grain; the dark lower-right sweep reads largely uniform in colour view.

WEAKEST Lower diagonal black sweep, near-flat interior

STRONGEST Outer arc's grey-to-black banding along its curve

Layering · ORDERED

Wide translucent grey ring, dark outer arc, inner grey band, dry black arc and diagonal sweep sit in readable order; overlaps at top right stay legible.

WEAKEST Dark diagonal covering earlier grey passes beneath

STRONGEST Grey ring beneath dark arc at top right

Composition · WORKING

Spiral and diagonal give strong rotation into the white core, but 88% coverage leaves empty paper mostly leftover except the centre; lower-left is muddled.

WEAKEST Crowded lower half, little shaped empty paper

STRONGEST Spiral movement drawing eye into central white

Material and surface · FLAWED

Pale wash runs with ragged bloom edges at lower-left and bottom-centre abut the main arc, visible in colour view; paper creases cross dark masses.

WEAKEST Bloomy wash runs at lower-left beside outer arc

STRONGEST Dry-brush grain on inner black arc

FLAWS

7 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 7 distinct places, 17 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 × OTHER“paper crease lines crossing dark outer arc”1 × BLOOM“fuzzy blotches near upper right of arc”1 × BLOOM“cloudy wash patch along left edge of outer arc”2 × WATER STAIN“Small grey blots in the white centre below th…”5 × BLOOM, TIDE LINE · MAJOR“Pale ragged wash runs below outer arc's lower…”3 × WATER STAIN, TIDE LINE“Grey cloudy patch below inner arc at bottom c…”WHOLE SHEET · 4 × OTHERWATER 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 18 edge segments, 61% crisp, 22% soft or bloomed, 17% 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.

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 5.7.

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 RUNG1.96(2.2 + 2.0 + 2.4 + 2.2 + 1.0) ÷ 5
→
RAW4.921 + 2 × 1.96
→
RATING5.75 + 2.086 × (4.92 − 4.60)