Crucible Year Peter Yuill
Archive · full record

T_372

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

Recorded

Date
2026.09.12, day 258
Size
100 × 90 cm
Paper
S14, Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper
Inks
MB6, MB7, MB8, MC
Phase
P4 S14
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
7.5
Form
3
Tonal depth
2
Layering
3
Composition
2
Material and surface
2
Ink cover
70%
Dark share
59%
Tonal steps
6
Flaws named by the reads
water stain 4, other 5, bloom 1, 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.

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_372T_372, tone-stretchedT_372, classed by brightness
70%of the sheet carries ink
Black 59%Grey 32%Light 9% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

6 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: 0.050 (under 0.045 reads as flat).

0.300.75123456 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
Form3FLUENT3FLUENT3FLUENT3FLUENT3FLUENT3.0
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering3ORDERED3ORDERED3ORDERED3ORDERED3ORDERED3.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“The single fan of layered arcs has fluent form and clearly stepped translucent passes, like R3. It falls short of R3 on tonal depth and composition, with a cloudy upper wash and a leftover bottom-left corner.”

Form · FLUENT

Fan of arc strokes follows the brush's rotation; dark central arc ends in a clean curved tip; stepped right edges are exact, outer left grey softer.

WEAKEST Pale outer left sweep, edges softening into wash

STRONGEST Central dark arc with crisp curved tail

Tonal depth · MODELLED

Dark arc shows fine concentric streaks and a pale ridge line; modulation 0.0496 only just above flat; upper grey interior cloudy rather than modelled.

WEAKEST Cloudy mottled grey in upper-middle wash

STRONGEST Concentric streaked banding in dark central arc

Layering · ORDERED

Several translucent passes fan out in visible steps on the right, dark arc laid over greys; order readable across the sheet, slightly muddled at top centre.

WEAKEST Upper-middle overlaps blur into cloudy grey

STRONGEST Stepped translucent fan edges on right

Composition · WORKING

One large fan mass sweeps diagonally with clear rotation; top-right paper with drips shaped, but bottom-left empty space is leftover and single mass lacks tension.

WEAKEST Bottom-left corner paper feels leftover

STRONGEST Diagonal fan sweep from upper left to lower right

Material and surface · SOUND

Ink controlled with dry-brush streaks in arc; upper-centre grey has cloudy mottle and faint tide edges; drips and spatter at top edge, pink tint lower right is colour.

WEAKEST Cloudy mottled patches in upper grey wash

STRONGEST Dry-brush streaking in dark arc

FLAWS

4 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 4 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.

1 × OTHER“isolated ink blot at the top-left corner”6 × WATER STAIN, BLOOM, OTHER“cloudy mottled patches in grey wash above inn…”2 × OTHER“stray drips and spatter along top edge of fan”2 × OTHER, TIDE LINE“hazy, cloudy grey wash in lower-left arc”WATER STAINBLOOMTIDE LINEOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 2 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 14 edge segments, 57% crisp, 21% soft or bloomed, 21% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

6 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 2.0
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 7.5.

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 RUNG2.40(3.0 + 2.0 + 3.0 + 2.0 + 2.0) ÷ 5
→
RAW5.801 + 2 × 2.40
→
RATING7.55 + 2.086 × (5.80 − 4.60)