--- title: "T_255, full record | Crucible Year" url: https://peteryuill.art/archive/works/T_255 description: "Crucible Year: a continuous year of sumi ink painting on paper by Peter Yuill, begun 29 December 2025." source: generated from the Crucible Year master database --- Archive · full record # T_255 [The work as shown](https://peteryuill.art/works/T_255). Every value below comes from vae.db, the master database of the Crucible Year. ## Recorded - **Date:** 2026.04.21, day 114 - **Size:** 70 × 180 cm - **Paper:** S3, Tanxi Jing Pi, raw - **Inks:** MB4, MB5, MB6 - **Phase:** P2 The Switch - **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:** 77% - **Dark share:** 62% - **Tonal steps:** 3 - **Flaws named by the reads:** other 6, ring 3, bloom 1, water stain 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:** 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 3 times by Claude Opus 5.5 against three reference paintings (R1 to R3), each read independent of the others. [How the engine works](https://peteryuill.art/method). 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_255] ![T_255, tone-stretched] ![T_255, classed by brightness] 77% of the sheet carries ink 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: 0.051 (under 0.045 reads as flat). FIVE READS ## Five reads, one answer. Each quality placed on its ladder by each read, and the mean the engine keeps. READ 1 READ 2 READ 3 MEAN Form 2 BUILT 2 BUILT 2 BUILT 2.0 Tonal depth 2 MODELLED 2 MODELLED 2 MODELLED 2.0 Layering 2 LEGIBLE 2 LEGIBLE 2 LEGIBLE 2.0 Composition 2 WORKING 2 WORKING 2 WORKING 2.0 Material and surface 1 FLAWED 1 FLAWED 1 FLAWED 1.0 ### READ 1, IN ITS OWN WORDS “A sweeping black arc and a broad grey wedge make a workable bowl. The wedge is slab-like, the black arc is fairly flat inside, and the blots inside the wedge count against the surface. An ordinary sheet, close to R2.” Form · BUILT Lower-left black arc follows the brush's travel with a dry-brush edge. The right wedge is a broad, stiff slab, and the top-left splash breaks into lobes. WEAKEST Right grey wedge: bulky slab with blunt tip STRONGEST Black sweeping arc with dry-brush striations, lower left Tonal depth · MODELLED The right wedge shows grain, streaks and stepped density. The black arc is mostly uniform inside. Modulation of 0.051 is only just above flat; three tonal steps. WEAKEST Black arc interior is largely flat STRONGEST Right wedge with grain and graded grey Layering · LEGIBLE A pale grey splash sits under the black arc, and the arc meets the grey wedge at the bottom centre. Both overlaps stay readable. About three passes. WEAKEST Top-left splash sits as a separate grey pass STRONGEST Black arc overlapping grey wedge at bottom centre Composition · WORKING The arc and the wedge make a bowl that cradles a shaped field of paper at top centre. The upper-left splash and the scattered drops feel crowded and loose. WEAKEST Busy splash area upper left STRONGEST Arc and wedge forming a bowl around the top paper Material and surface · FLAWED Three or four dark square blots sit inside the right wedge and show at viewing distance. There is a small bubble ring at the centre and scattered stray drops across the top. WEAKEST Dark blots inside the right wedge STRONGEST Dry-brush edge of the black arc FLAWS ## 6 distinct places, 3 major. Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 6 distinct places, 12 mentions in all across 3 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. 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 17 edge segments, 24% crisp, 65% soft or bloomed, 12% broken. RULE 1 Two tonal steps or fewer Tonal depth held at rung 1. 3 steps: not applied RULE 2 A major flaw Material held at rung 1. Mild waves in the unmounted paper are never a flaw. 3 major flaws: applied RULE 3 Any quality below 0.5 The rating cannot exceed 4. lowest 1.0 RULE 4 At least two valid reads A read that breaks the reply format is discarded. 3 of 5 valid THE ARITHMETIC ## V23 rating 5.0. Engine v23.8, 3 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 RUNG 1.80 (2.0 + 2.0 + 2.0 + 2.0 + 1.0) ÷ 5 → RAW 4.60 1 + 2 × 1.80 → RATING 5.0 5 + 2.086 × (4.60 − 4.60) ## Where next [Every record the full archive](https://peteryuill.art/archive)[2026.04.21 every painting from this date](https://peteryuill.art/days/2026-04-21)