Crucible Year Peter Yuill
Archive · full record

T_367

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

Recorded

Date
2026.07.28, day 212
Size
97 × 180 cm
Paper
S14, Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper
Inks
MB6, MB7, MB8, MC
Phase
P3 The Floor Rises
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
5.5
Form
2
Tonal depth
1.6
Layering
2
Composition
2
Material and surface
2
Ink cover
69%
Dark share
60%
Tonal steps
5
Flaws named by the reads
mud 2, other 6, water stain 1, dead ink 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

V10C
9
From an earlier engine (V10C). 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_367T_367, tone-stretchedT_367, classed by brightness
69%of the sheet carries ink
Black 60%Grey 25%Light 15% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

5 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: 0.041 (under 0.045 reads as flat).

0.300.7512345 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 depth2MODELLED2MODELLED1THIN1THIN2MODELLED1.6
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“This is a twin-spiral radial sheet in the R3 idiom, with good layered greys and a deliberate red accent. Its right half is overloaded with flat, slab-like blacks, which crowds the composition and deadens the tone. Ordinary overall.”

Form · BUILT

The radial and arc segments hold their walls and follow the brush travel on the left. The right-side black wedges and bottom slabs are heavy, filled-in blocks.

WEAKEST Bulky dark slabs at bottom right running off edge

STRONGEST Left spiral's concentric arc segments around open centre

Tonal depth · MODELLED

The peripheral rays step through several greys (5 tonal plateaus). Dark-interior modulation is 0.041, so the big right and bottom-right blacks are flat apart from paper crinkle.

WEAKEST Flat black interiors of right fan wedges

STRONGEST Graded translucent greys in the left spiral's outer rays

Layering · LEGIBLE

The overlapping grey passes on the left and at the top centre stay readable, and the red sits legibly under the black arcs. On the right, dense black covers the sequence.

WEAKEST Right half where black passes bury earlier layers

STRONGEST Overlapping translucent rays around the left spiral

Composition · WORKING

The two vortices connect in an S that carries the eye left to right, and the left paper is open. The right third is jammed and the dark slabs crowd the bottom edge.

WEAKEST Crowded, heavy right and bottom-right mass

STRONGEST Twin spiral centres linked by an S-shaped flow

Material and surface · SOUND

The ink is mostly controlled and the red is deliberate. A mottled cloudy grey sits in the lower-centre overlap, crinkle texture shows in the right blacks, and stray dots dot the left paper.

WEAKEST Cloudy mottled grey in the lower-centre overlap

STRONGEST Dry-brush edges on the radial ray ends

FLAWS

5 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 5 distinct places, 11 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.

5 × OTHER“scattered stray ink dots and blot on the left…”1 × WATER STAIN“mottled cloudy patch inside dark sectors righ…”3 × MUD, DEAD INK“Red band fused under black in right-centre se…”1 × MUD“cloudy mottled grey overlap below the right s…”1 × OTHER“Paper crinkle texture visible inside bottom-r…”WATER STAINDEAD INKMUDOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 6 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 17 edge segments, 65% crisp, 24% soft or bloomed, 12% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

5 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 1.6
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(2.0 + 1.6 + 2.0 + 2.0 + 2.0) ÷ 5
→
RAW4.841 + 2 × 1.92
→
RATING5.55 + 2.086 × (4.84 − 4.60)