Crucible Year Peter Yuill
Archive · full record

T_146

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

Recorded

Date
2026.03.27, day 89
Size
70 × 180 cm
Paper
S3, Tanxi Jing Pi, 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
2
Tonal depth
2
Layering
2
Composition
2
Material and surface
1
Ink cover
73%
Dark share
64%
Tonal steps
3
Flaws named by the reads
bloom 5, other 4, water stain 5, tide line 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

V7
9
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_146T_146, tone-stretchedT_146, classed by brightness
73%of the sheet carries ink
Black 64%Grey 31% 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: 0.057 (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

“The bold arc rising into a black right block has a clear direction and a feathered edge. The right mass is a flat slab, and blooms mottle the lower band.”

Form · BUILT

The arc band holds its curve and follows the stroke's travel. The right black mass is a heavy filled-in rectangle with a stiff vertical right edge.

WEAKEST Right dark block: bulky slab with blunt edges

STRONGEST Sweeping grey arc with feathered upper edge

Tonal depth · MODELLED

The arc interior shows grain, mottling and graded density. The right black block varies only slightly (modulation 0.057). Three tonal steps.

WEAKEST Upper part of the right black mass is near-uniform

STRONGEST Arc band, graded from pale texture to deep grey

Layering · LEGIBLE

A pale textured arc, a darker grey crescent and the black block read as separate passes along the arc. On the right the black largely buries what lies beneath.

WEAKEST Right block mostly covers the earlier passes

STRONGEST Grey arc pass under a darker overlapping crescent

Composition · WORKING

The curve carries the eye up and to the right, and the empty upper left takes a dome shape. The right block is dense and dead weight.

WEAKEST Right third is a heavy, static black wall

STRONGEST Arc sweeping from bottom left up into the right mass

Material and surface · FLAWED

Round dark blotches scattered through the lower grey band are visible in the colour view. A vertical crease line runs through the right black mass. Stray spots in the upper left.

WEAKEST Mottled bloom spots across the lower arc band

STRONGEST Feathered dry-bleed fringe along the arc's upper edge

FLAWS

3 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 3 distinct places, 16 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 × WATER STAIN“Scattered grey spots and specks on the upper-…”6 × OTHER, TIDE LINE“Vertical crease or line inside the right blac…”5 × BLOOM · MAJOR“Round mottled dark blotches through the lower…”WATER STAINBLOOMTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 5 principal ink masses traced (cyan), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 26 edge segments, 12% crisp, 85% soft or bloomed, 4% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3
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)