Crucible Year Peter Yuill
Archive · full record

T_194

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

Recorded

Date
2026.04.08, day 101
Size
97 × 180 cm
Paper
S11, Red Star Mo She Special Effect Xieyi, raw
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
Form
1.8
Tonal depth
1.4
Layering
2
Composition
2
Material and surface
1.8
Ink cover
46%
Dark share
17%
Tonal steps
3
Flaws named by the reads
bloom 2, water stain 5, other 4, tide line 3
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
7
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_194T_194, tone-stretchedT_194, classed by brightness
46%of the sheet carries ink
Black 17%Grey 50%Light 33% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

3 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: 0.039 (under 0.045 reads as flat).

0.300.75123 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
Form1BLUNT2BUILT2BUILT2BUILT2BUILT1.8
Tonal depth1THIN1THIN1THIN2MODELLED2MODELLED1.4
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND1FLAWED2SOUND2SOUND1.8

READ 1, IN ITS OWN WORDS

“An energetic sweep with a good dry-brush fan, but the dark masses are flat blobs and the lower right is cluttered with lobed drops. Ordinary, at or slightly below R2.”

Form · BLUNT

Grey arc and right dry-brush fan follow the brush's travel, but the lower-right lobes and the fish-shaped lower-left blot are puddled blobs, not made strokes.

WEAKEST Lobed dark blobs lower right, random puddled shapes

STRONGEST Long grey arc sweeping from upper left

Tonal depth · THIN

Fan and grey arc show grain and streaks, but the dark masses are flat inside (modulation 0.039). Only three tonal plateaus. Close call resolved down.

WEAKEST Flat dark interiors of blobs and upper band

STRONGEST Striated dry-brush fan at right

Layering · LEGIBLE

A translucent grey sweep and fan, then dark strokes and drops on top. The overlaps stay readable, but only about two passes.

WEAKEST Lower-right blobs sit as separate drops

STRONGEST Dark band laid over grey sweep, upper centre

Composition · WORKING

The curving sweep gives clear movement and the open left with spatter has shape. The lower-right cluster of blots is crowded and scattered.

WEAKEST Crowded blob cluster lower right

STRONGEST Diagonal arc carrying eye toward right fan

Material and surface · SOUND

Ink mostly controlled and dry-brush texture used at right. Mottled blotches in the grey arc and a trail of grey spots at bottom centre are minor.

WEAKEST Mottled cloudy patches inside grey arc

STRONGEST Dry-brush grain in right fan

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, 14 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.

3 × TIDE LINE“hard edge on pale wash at top-right start of …”4 × OTHER“small yellowish speck on paper at left”1 × BLOOM“mottled cloudy patches inside grey arc”5 × WATER STAIN“vertical trail of pale grey spots below arc”1 × BLOOM“puddled lobed black blobs”WATER STAINBLOOMTIDE LINEOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 7 principal ink masses traced (cyan), 6 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 27 edge segments, 41% crisp, 22% soft or bloomed, 37% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

3 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 1.4
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 5.0.

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 RUNG1.80(1.8 + 1.4 + 2.0 + 2.0 + 1.8) ÷ 5
→
RAW4.601 + 2 × 1.80
→
RATING5.05 + 2.086 × (4.60 − 4.60)