Crucible Year Peter Yuill
Archive · full record

T_264

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

Recorded

Date
2026.04.26, day 119
Size
97 × 180 cm
Paper
S4, Tanxi half-raw, 6-foot
Inks
MB4, MB5, MB6
Phase
P2 The Switch
Shown on the site
yes (V23 rating of 5.0 or higher)
Early storage triage
PT: probably trash (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
81%
Dark share
62%
Tonal steps
4
Flaws named by the reads
water stain 7, ring 4, tide line 3, other 4, bloom 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
4
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_264T_264, tone-stretchedT_264, classed by brightness
81%of the sheet carries ink
Black 62%Grey 27%Light 10% 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: 0.062 (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, 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

“The two big arcs make a strong diagonal and have some layered translucency, but the forms are bulky in places, the top left is cluttered, and a visible water stain below the arcs lowers the material score.”

Form · BUILT

Broad arcing bands hold their walls and follow the sweep; left-edge block and top-left strokes are lumpy and stiff.

WEAKEST Bulky ragged block at left edge behind arc

STRONGEST Right dark arc segment following brush sweep

Tonal depth · MODELLED

Right dark mass shows grain, cracks and inner arc; left band has stepped bands but broad interiors stay fairly uniform grey.

WEAKEST Big left grey band fairly even inside

STRONGEST Right dark arc with grain and inner dark ring

Layering · LEGIBLE

Two or three translucent passes overlap legibly in left arc and right sweep; top-centre crossing gets dense and less readable.

WEAKEST Top-centre overlaps merge into murky grey

STRONGEST Stepped translucent arcs in left band

Composition · WORKING

Two arcs drive a strong diagonal movement and shape the lower-centre void; top-left is busy and cluttered with splatter.

WEAKEST Cluttered top-left corner with drips

STRONGEST Rising diagonal arc sweep across sheet

Material and surface · FLAWED

Visible pale tide-edged stain with drip trail below the arcs, and ringed droplets on left paper, visible in colour view.

WEAKEST Pale water stain and drip trail bottom centre

STRONGEST Grainy dry-brush edges on right arc

FLAWS

5 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 5 distinct places, 19 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.

5 × TIDE LINE, WATER STAIN, BLOOM“faint tide marks in top-left paper”5 × RING, WATER STAIN“ringed droplet marks on paper left of left arc”1 × OTHER“crease lines crossing the main arc band”5 × WATER STAIN, TIDE LINE · MAJOR“pale tide-edged stain with drip trail below a…”WHOLE SHEET · 3 × OTHERWATER 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), 5 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 16 edge segments, 44% crisp, 31% soft or bloomed, 25% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5
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 5.0.

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)