Crucible Year Peter Yuill
Broad dark and grey arc-shaped bands fan out from the right edge across pale paper, with spatter and faint rings at upper left. T_377, tone-stretched: what the model was shownT_377: every pixel as the measuring code classes it
100 × 90 cm · the whole sheet, uncropped

T_377

The engine's reading

A fan of broad ink arcs, stacked from pale to black, swings up and left from a hub beyond the right edge toward spattered open paper.

Record
Date
2026.09.12
Dimensions
100 × 90 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_377Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Ovid says Daedalus laid the feathers in order, the smallest first, each longer than the last, so the wing seemed to grow on a slope, the way the reeds of a shepherd's pipe climb in steps. These are those wings, stacked black over grey and opened as far as they go. On the left the trouble has started. Streaks fly off the edge, small and fast, the wax letting go a quill at a time, because somebody's son has climbed toward the sun. I would have told him. Fathers did. Down at the right, small and pale, is the door of the workshop they flew out of, still open, and below it the sea, waiting very calmly to be named after him.

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 the painting was rated, from the settled findings, and checked by hand before approval. It explains the numbers; it may not change them.

Structure
wide arc segments stacked as a fan, top slab joining the right arcs
Movement
sweep up and left from lower right; upper-left spatter flies along it
Coverage
ink on about three quarters of the paper
Tone
four tonal steps, weighted dark
Layering
pale rings, mid-grey segments, dark inner arcs; readable across the right half
Edges
crisp outer arc walls; soft translucent overlaps; broken left end of lower panel
Feibai
none
Open paper
curved wedge at upper left, small pale opening at right edge
Chance marks
spatter upper left and lower left; drops lower right; creases through darks
Frame
ink runs off top and right edges; left edge and lower left stay open

A fan of broad arcs swings up and to the left from a hub just off the right edge. Each band is one wide stroke laid over the last. The eye meets the dark mass first, then rides the curve outward into pale rings and open paper.

The right arcs carry the sheet. Pale outer bands lie under mid-grey segments, and darker arcs lie on top. The half-raw paper holds each pass without drowning the one beneath, so the order of the passes reads cleanly. The innermost band bends round the small pale opening at the right edge and deepens toward its core, with the brush's grain left in it. Its walls hold, and its ends trail off dry.

The costs sit at the top and the lower left. The upper slab is boxy and nearly even inside, so the top right turns crowded and heavy. The grey panel at lower left loses its left end to spatter. Crease lines cross the darks and the centre-left panel mottles pale, and at viewing distance the sheet absorbs both.

These are the faults of a sheet with a real engine. The fan turns with conviction, and the right half is worth the whole.

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_377T_377, tone-stretchedT_377, classed by brightness
77%of the sheet carries ink
Black 57%Grey 28%Light 15% 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: 0.053 (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
Form2BUILT2BUILT2BUILT3FLUENT2BUILT2.2
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering3ORDERED3ORDERED3ORDERED3ORDERED3ORDERED3.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“I placed this sheet on rung 3 for layering and rung 2 on the other four ladders. It has R3's radiating arcs and layered passes but less refinement. The lower-left block is bulky. The upper block is flat inside, the top right is crowded, and minor creases show in the darks.”

Form · BUILT

Arc segments mostly follow brush travel with dry-brush edges; lower-left slab reads bulky, its left end dissolving into spatter rather than a held wall.

WEAKEST Lower-left block, ragged spattered left end

STRONGEST Right arc band curving round the open centre

Tonal depth · MODELLED

Stretched view shows grain and stepped density in right arcs and lower-left block; upper-centre dark block is mostly even; modulation 0.053 is only modest.

WEAKEST Upper dark block, fairly even interior

STRONGEST Right arcs with graded density and dark core

Layering · ORDERED

Several translucent passes of arcs and blocks overlap in clear order, pale outer rings under darker bands; sequence readable across right half like R3.

WEAKEST Dense overlaps at top right merge slightly

STRONGEST Translucent grey arcs overlapping beneath dark bands

Composition · WORKING

Radiating fan gives direction and the left paper is shaped by spatter and faint rings; top right is heavy and crowded, the fan cropped awkwardly.

WEAKEST Crowded dark mass at top right

STRONGEST Fan of arcs radiating around right-edge centre

Material and surface · SOUND

Ink controlled with dry-brush edges; stretched view shows paper crease lines through the dark blocks and speckled mottling in lower-left block, minor at viewing distance.

WEAKEST Crease marks across dark block interiors

STRONGEST Dry-brush trailing edges on arc ends

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, 10 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.

3 × OTHER“crease lines through upper dark block and rig…”2 × OTHER“crease lines across upper dark arc interiors”2 × OTHER, WATER STAIN“speckled mottling inside lower-left grey block”2 × WATER STAIN, OTHER“mottled pale patches in centre-left panel”1 × OTHER“crease network in right dark arc”WATER STAINOTHER
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 11 edge segments, 64% crisp, 36% soft or bloomed, 0% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5

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_377 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