Crucible Year Peter Yuill
Black and grey radial wheel around a small white circle left of centre, with a long dark bar and stepped grey bands extending right. T_419, tone-stretched: what the model was shownT_419: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_419

The engine's reading

A white eye of bare paper at the hub of a black wheel, its arcs and spokes breaking rightward into stacked grey planes.

Record
Date
2026.11.03
Dimensions
97 × 180 cm
Rating
6.5
Paper
Huiyun Tianxuan Ge "Dot Ink Becomes Gold" Master Special, semi-cooked (self-sized, aged)
Ink
Yi De Ge Yun Tou Yan, Boku-Undo Gentoku Super Concentrated, Yi De Ge Pine Soot Ink, Shisan Yue Calligraphy and Painting Ink
Enquire about T_419Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The small white hole is the oldest thing in the picture. I mean that the way astronomers mean it: look through enough dark and what you finally reach is the first light, stretched thin, still arriving, barely warm. I have spent a long time at that aperture. Galaxies turn around their black centres and take their time about it. Our sun has gone round about twice since anything here had a spine, and whole mountain ranges have come up and gone to sand during a single lap. I found that restful once. Now I look at that pale dot the way a miner looks up the shaft, from very far down, with the day going cold at the top.

NeonWho Neon is
Detail at full resolution, cut by code where the brushwork is finest · select to enlarge
The engine's reading

The reading

Written by the engine after V23's reads, from the settled findings, and checked by hand before approval. It explains V23's numbers and may not change them.

Structure
concentric arcs and radial spokes around a small hub, joined to stepped bars at right
Movement
rotation around the hub, driven rightward by a long bar; open paper runs diagonally against it
Coverage
ink on about nine tenths of the paper
Tone
four tonal steps, weighted dark
Layering
three kinds of pass, washes, grey bands, dark bars; readable across upper arcs and right fan
Edges
crisp on arcs, bars and wedges; broken at fan ends; soft inside the lower-centre black
Feibai
present at arc and fan stroke ends along the upper right
Open paper
long stepped diagonal at top right, smaller wedge at bottom left, round reserve at hub
Chance marks
seam in upper-left wedge; small blots on long bar; cloudy mottling in lower-centre black
Frame
ink runs off top, left, bottom and lower right; upper right stays open

A small white eye sits low and left of centre, and the whole sheet turns on it. Arcs ring outward in widening bands, spokes cut through them, and one long black bar drives right until the wheel breaks into stepped planes. At top right, open paper answers with a long diagonal of its own.

The finest stretch runs through the upper arcs and the right fan, where pale washes, mid-grey bands and dark bars cross and every crossing reads in order. The paper, sized with alum glue, keeps each pass sitting on the last, so the greys stack like panes of smoked glass, clean-edged, fraying into dry brush where the fan meets bare ground.

Below the eye that clarity closes. The passes fuse into near-black at bottom centre, a loose, faintly cloudy mass that sits heavy on the lower right. Elsewhere, the upper-left wedge and the long slab stay flat, filled shapes. A seam down that wedge and a few small blots on the bar barely register.

Those costs are real, and they sit low. Above them the wheel turns vast and exact, sure of every ring: a commanding sheet with a heavy foot.

Read and measured

The rating

THE RATING

T_419, rated 6.5

The combined score, out of 10: V23's reading of the photograph as the read half and V24's twelve tests on the 16-bit file as the measured half, added and divided by 10. The scale is relative to this archive. How each half is made is on the Method page.

READ HALF35.0V23's rating, 7.0, × 5
+
MEASURED HALF30.0twelve tests, of 50
→
RATING6.565.0 ÷ 10
THE READ HALF, V23
Form
2.0 · built
Tonal depth
2.0 · modelled
Layering
3.0 · ordered
Composition
2.4 · working
Material and surface
2.0 · sound
THE MEASURED HALF, V24
Mass
6.0 of 10
Tone
8.4 of 14
Void
3.2 of 8
Flow
7.6 of 10
Balance
4.8 of 8
Measured

How it was measured

FROM THE 16-BIT FILE

What V24 measured.

Plain physical facts with no model involved. Across the year they track how the practice changes. On one sheet they cannot say whether a mark is any good. Millimetres read a few percent high, because the photographs are cropped just inside the paper's edge.

MASS WIDTH118 mm

The width of the ink mask along its medial axis.

DEPTH OF THE DARKS1.72

Optical density at the 75th percentile of the sheet.

LARGEST VOID280 mm

The radius of the largest circle of open paper.

DIRECTIONS0.04

How far the marks align across the sheet. Lower means they run several ways.

BALANCE0.62

Left and right asymmetry of the ink. Lower is more even.

THE FILE3.89

Pixels to the millimetre in the TIFF these were measured from, with the studio light removed.

Read by the Visual Analysis Engine, version 23.13, on 2026.11.03: 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_419T_419, tone-stretchedT_419, classed by brightness
87%of the sheet carries ink
Black 63%Grey 30% 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: 0.042 (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, agreeing on 4 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
Form2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering3ORDERED3ORDERED3ORDERED3ORDERED3ORDERED3.0
Composition3COMMANDING2WORKING2WORKING3COMMANDING2WORKING2.4
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“Off-centre radial wheel with legible translucent layering and strong rotation out to a dissolving right fan; held back by bulky, near-flat dark wedges and a heavy lower-centre mass. Surface sound, with only minor marks.”

Form · BUILT

Arcs and spokes follow the brush's travel around the eye; walls hold, but top-left and left wedges and the long right slab remain bulky, filled shapes.

WEAKEST Bulky merged dark mass at bottom centre, loosely shaped

STRONGEST Concentric arcs and tapered radial spokes around the central eye

Tonal depth · MODELLED

Arcs and right fan step richly through greys; large darks measure flat (0.042), showing only faint grain when stretched, so depth is not sheet-wide.

WEAKEST Left wedge and horizontal slab read nearly flat in colour

STRONGEST Stepped grey bands in upper arcs and right fan

Layering · ORDERED

Many translucent passes overlap in readable order across the upper arcs and right fan, building depth; only the heaviest darks at lower centre swallow earlier passes.

WEAKEST Passes fuse into near-black at bottom centre

STRONGEST Translucent overlapping bars and arcs across the right fan

Composition · COMMANDING

Off-centre wheel around white eye drives rotation; long slab and fan carry the eye rightward, while the top-right paper forms a strong diagonal counter-shape. Lower centre is heavy.

WEAKEST Heavy lower-centre dark, the densest and least active area

STRONGEST Off-centre wheel spinning out to the dissolving right fan

Material and surface · SOUND

Ink is controlled, with clean edges and dry-brush fan ends; a seam, small blots and mottling in the darks are minor, mainly visible in the stretched view.

WEAKEST Mottled, slightly cloudy interior of the bottom dark mass

STRONGEST Dry-brush stroke ends along the upper-right fan edge

FLAWS

3 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 3 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.

5 × OTHER“Vertical dark seam running down the interior …”5 × DEAD INK, WATER STAIN“Mottled, cloudy near-black interior of the lo…”4 × OTHER“Small dark blots low in the long horizontal s…”WATER STAINDEAD INKOTHER

V23's rules and arithmetic, and every figure under its own name, are in the Archive record.

Date

2026.11.03, day 310 of the Crucible Year, one of 11 paintings from that date. 13 works were registered in the fourteen days before. Paintings are dated by the day their batch was registered and photographed; each was finished that day or within the few days before. Phase: P4 S14 (working title).

Every painting from 2026.11.03 is on this site. 6 other dates with more than five works are shown in full.
THE YEAR

T_419 among all 419

Every painting of the year by date; this one is outlined.

Every painting from 2026.11.03 · This date in the year

Materials

Paper
Huiyun Tianxuan Ge "Dot Ink Becomes Gold" Master Special, semi-cooked (self-sized, aged), Anhui Jingxian Huiyun Tianxuan Ge Xuan Paper Art Products Co., Ltd. (安徽泾县徽韵天宣阁宣纸艺术品有限公司), made 2012.10
Ink MB6
Yi De Ge Yun Tou Yan, Yi De Ge (Beijing)
Ink MB8
Boku-Undo Gentoku Super Concentrated, Boku-Undo
Ink MB9
Yi De Ge Pine Soot Ink, Yi De Ge (Beijing)
Ink MB10
Shisan Yue Calligraphy and Painting Ink, Shisan Yue (Thirteenth Month)
The last painting on S13 so far, after 12 others.
When each paper was in use