Crucible Year Peter Yuill
Archive · full record

T_224

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

Recorded

Date
2026.04.15, day 108
Size
97 × 180 cm
Paper
S11, Red Star Mo She Special Effect Xieyi, 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
Form
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
1
Ink cover
73%
Dark share
14%
Tonal steps
3
Flaws named by the reads
ring 9, other 4, water stain 3, bloom 5, 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
5
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_224T_224, tone-stretchedT_224, classed by brightness
73%of the sheet carries ink
Black 14%Grey 76%Light 10% 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: 0.054 (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, 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 surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“A busy grey sheet with a working arc structure and a left fan with good bristle detail. The flat right blot, the cloudy centre, and the rings and drip pools near the left mass hold it at around the ordinary level.”

Form · BUILT

The left dark fan and the central arc hold as nameable forms. The right dark blot is bulky and the lower-right grey wedge is ragged and stiff.

WEAKEST Bottom-right ragged grey wedge with no clear shape

STRONGEST Large grey arc sweeping across the top centre

Tonal depth · MODELLED

The left fan has bristle banding and stepped density. The right black blot is flat inside. Mid-greys dominate; measured modulation is 0.054 across three tonal plateaus.

WEAKEST Dark blot at upper right is dense, flat black

STRONGEST Left dark fan with streaked bands inside

Layering · LEGIBLE

Pale horizontal bands, the grey arc and the dark strokes read as separate passes. In the centre the greys fuse into a hazy mid-tone.

WEAKEST Central overlaps go cloudy and mid-grey

STRONGEST Left fan laid over pale horizontal bands

Composition · WORKING

The arc carries the eye from the left mass to the right blot. Ink covers 73% of the sheet, so the empty paper is mostly a leftover margin, and the centre is crowded.

WEAKEST Crowded hazy grey centre

STRONGEST Arc linking the left fan to the right blot

Material and surface · FLAWED

Circular rings and pale drip pools sit beside the lower-left mass. The paper surface is creased and crackled through the grey arc, and spots and blotches are scattered across the sheet.

WEAKEST Ring marks and drip pools around the left mass

STRONGEST Dry-brush streaking in the left fan

FLAWS

8 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 8 distinct places, 22 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.

2 × OTHER“creased, crackled surface across the grey arc”2 × BLOOM“ragged blotted edges of the black mass”1 × RING“circular drop rings at the left edge”3 × WATER STAIN, OTHER · MAJOR“cloudy crinkled wash inside central grey arc”4 × RING, OTHER“scattered rings in the right paper margin”8 × RING, BLOOM, TIDE LINE · MAJOR“circular rings and drip pools beside the left…”1 × WATER STAIN“pale blotches in the lower centre”1 × RING“pale drop rings at the lower right margin”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), 8 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 15 edge segments, 47% crisp, 53% soft or bloomed, 0% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7H8
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.

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 5.0.

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(2.0 + 2.0 + 2.0 + 2.0 + 1.0) ÷ 5
→
RAW4.601 + 2 × 1.80
→
RATING5.05 + 2.086 × (4.60 − 4.60)