Crucible Year Peter Yuill
T_376, sumi ink on half-cooked red star mo she 6-foot bark xuan paper T_376, tone-stretched: what the model was shownT_376: every pixel as the measuring code classes it
90 × 100 cm · the whole sheet, uncropped

T_376

Record
Date
2026.09.12
Dimensions
90 × 100 cm
Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, self-sized from October 2026
Ink
Yi De Ge Yun Tou Yan, Kuretake Shogei Purple-Navy Black, Boku-Undo Gentoku Super Concentrated, colour inks
Enquire about T_376Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.
Detail at full resolution, cut by code where the brushwork is finest · select to enlarge
Measured

How it was read

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_376T_376, tone-stretchedT_376, classed by brightness
91%of the sheet carries ink
Black 80%Grey 15% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

2 families of tone.

Every inked pixel's brightness in 64 bins, smoothed; each circled peak holds at least 4% of the ink. Two or fewer: Tonal depth is held at the bottom rung whatever the model reads. A dense sheet of many translucent passes can count low here, so Layering is left to the reads. Life inside the black: 0.051 (under 0.045 reads as flat).

0.300.7512 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 surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A spiral of broad arc bands with a red under-layer, in the same family as R3 but heavier and denser. The lower dark slab is flat and bulky, and the bands crowd the frame. It is a sound, ordinary sheet.”

Form · BUILT

Concentric arc bands read as coherent spiral forms with holding walls; the lower-left dark block is a heavy rectangular slab with stiff, squared top edge.

WEAKEST Bulky slab-like dark block at lower left

STRONGEST Upper sweeping arc band following brush travel

Tonal depth · MODELLED

Tone-stretched view shows grain, creasing and stepped greys in upper arcs; the lower dark sweep is heavy and close to flat; only two tonal plateaus measured.

WEAKEST Lower dark mass, near-uniform dense black

STRONGEST Upper right arcs showing graded translucent grey bands

Layering · LEGIBLE

Several arc passes overlap legibly on the right and around the inner opening; red under-layer shows top-left; the lower dark pass largely buries what lies beneath.

WEAKEST Dense black lower sweep covering earlier passes

STRONGEST Overlapping arc segments on right edge stay legible

Composition · WORKING

Spiral carries the eye clockwise around a shaped white core; but the bands crowd every edge and the left margin leftovers feel unresolved.

WEAKEST Crowded edges; ink fills about 90% of sheet

STRONGEST Spiral movement round the shaped pale inner opening

Material and surface · SOUND

Ink controlled; crumpled-paper crease texture throughout; faint mottled pale patches in the lower-left black visible mainly in tone-stretched view; small specks at right edge.

WEAKEST Cloudy pale blotches inside lower-left dark mass

STRONGEST Dry-brush streaked edges of arc bands at right

FLAWS

5 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 5 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“paper crease lines across the upper arc”4 × WATER STAIN“Mottled pale patches inside lower-left dark b…”2 × OTHER“Small dark specks and spots near right edge”2 × OTHER, WATER STAIN“milky grey smudged wash at bottom-left corner”WHOLE SHEET · 2 × OTHERWATER STAINOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 2 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 17 edge segments, 65% crisp, 35% soft or bloomed, 0% broken.

A1B1C1A2B2C2A3B3C3A4B4C4A5B5C5A6B6C6H1H2H3

The rating these readings produce, the rules applied and the arithmetic, with Peter's own rating where he gave one, are in the Archive record.

Date

2026.09.12, day 258 of the Crucible Year, one of 8 paintings from that date. 0 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 2026.09.12 is shown here. 2 other dates with more than five works can say the same.
THE YEAR

T_376 among all 402

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

Every painting from 2026.09.12 · This date in the year

Materials

Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, self-sized from October 2026, China Xuan Paper Co., Ltd., made 2026.04.08
Ink MB6
Yi De Ge Yun Tou Yan, Yi De Ge (Beijing)
Ink MB7
Kuretake Shogei Purple-Navy Black, Kuretake
Ink MB8
Boku-Undo Gentoku Super Concentrated, Boku-Undo
Colour
colour inks, recorded together
The sheet of paper was made 157 days before this painting.
When each paper was in use