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re: the pulse floor gets a second witness, and two METHOD entries

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The port reproduced the floor exactly (159) once the predicate was named, and
counted an independent capture from a different session: 753 against this run's
714, a ratio of 4.7x against 4.6x. 'Never goes off' is no longer single-run.

Two METHOD entries.

A detector that can fire on a single frame will fire on the wrong one. The A/B's
first pair was void because the title detector tested one frame against a glyph
threshold and the intro movie throws sub-second green flashes of 1298..5433. The
presses were real and skipped the movie, so both legs returned a clean,
symmetric, meaningless result -- a void test that looks like it ran is worse than
one that errors. Same shape the corpus already recorded for screen_id.py calling
the SQUARE ENIX logo 'title'. Twice paid for. The rule is that a screen detector
matches a signature over time, and a broken run's own series is the cheapest
control for its replacement.

A demand for reproducibility can surface a defect that is not the one demanded.
The literal answer to 'your figures are unverifiable' was 'here is the
predicate', after which they verified exactly -- but writing the method down is
what exposed the cross-geometry floor comparison, which nobody was looking for.
And both sides were wrong at once: the challenger's counts were the wrong
measurement AND the published figure had a real flaw.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
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sylph-decoder
2026-08-30 08:07:51 +00:00
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docs/re/structures/plate-pulse-measured.md
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@@ -64,7 +64,22 @@ t = 255.0 — the title art alone, in the very frames the pulse was measured in.
| pulse peak | **1520** | |
**"It never goes off" now rests on one run in one geometry**, which is what it
should have rested on from the start. ⚠️ The port's independent ratio — about
should have rested on from the start.
### ✅ …and it now has a witness that is not this run
With the predicate named, the port agent reproduced the floor **exactly** and
counted an independent capture from a different session:
| | this run | the port, from `live-title-press-a.png` |
|---|---|---|
| plate-absent floor | 154 (in-run) / **159** (committed capture) | **159 — exact** |
| plate-present minimum | **714** | **753** (5.5 % apart) |
| ratio | **4.6×** | **4.7×** |
The second row is the one that matters: a capture taken in a different session,
counted by someone else, lands within 5.5 % of this run's pulse floor and gives the
same ratio to one part in fifty. **The load-bearing claim is no longer single-run.** ⚠️ The port's independent ratio — about
**1 : 10.4–10.9** between plate-absent and plate-present over its own crop, stable
across a wide threshold band — brackets this page's 1 : 9.6 and is the part that is
robust to how anyone counts.