# The JAPANESE title (GP_TITLE build 7) at rest -- captured 2026-08-30.
#
# Asked for by the port agent: its title_jp row drifted (155/20498 ->
# 233/61208), localized to a 350x396 block at (405,74) -- the logo stack --
# and with NO capture of the JP title in the corpus it could say the two
# renderers had moved apart but not which one moved.
#
# MISSION.md has carried this as 'needs one more run' since 2026-08-29.
# Three earlier attempts failed to reach the interactive title in either
# locale. The reason is now known and was not the locale: A at the title
# needs a signed-in profile (title-a-press-fault.md), and no run had one.
#
# LOCALE: tools/re-capture/set_console_language.py ja -- canary's own
# persisted XConfig, offset located from struct landmarks. Restored to en
# afterwards; verified back at language=1.
#
# ✅ INDEPENDENT CONFIRMATION THE LOCALE TOOK: the XMA probe logged a
# DIFFERENT voice-context set from every English run --
#   ja: 1112064, 1150976, 1177600
#   en: 1294336, 1118208, 1171456
# The Japanese voice region is a different set of streams, so the switch
# reached the guest and is not just a menu-language cosmetic.
#
# 'AT REST' IS DEMONSTRATED, NOT ASSUMED. Five frames ~1.5 s apart after the
# plate pulse says the screen has settled:
#
#   the port's ROI, 350x396 at (405,74) design space:
#     frame 1 vs 0: max |d| 0, pixels differing >8:      0 / 138600
#     frame 2 vs 0: max |d| 0, pixels differing >8:      0 / 138600
#     frame 3 vs 0: max |d| 0, pixels differing >8:      0 / 138600
#     frame 4 vs 0: max |d| 0, pixels differing >8:      0 / 138600
#
#   the whole frame, as a CONTRAST CONTROL (the plate pulses, so this must
#   move or the instrument is blind):
#     frame 1 vs 0:  39584 px      frame 3 vs 0:  71927 px
#     frame 2 vs 0:  58303 px      frame 4 vs 0:  69604 px
#
# So the logo stack is byte-identical across 6 s while 5-8 % of the frame is
# moving. The ROI is at rest and the instrument can see motion.
#
# WHAT THE CAPTURE SHOWS that the English title does not: the katakana
# subtitle under the wordmark, and a crystalline burst BEHIND the wordmark --
# the ptlogo3a/b/c + ptlogo_back2eff* stack, which ui-forced-backdrop and
# the tie-break work record as TRANSPARENT at rest on the English title.
# That is exactly the region the port's drift is localized to.

################################################################################
# SECOND, INDEPENDENT CAPTURE -- 2026-08-30, a fresh boot in a separate session.
# tools/re-capture/jp_title_session.sh (sets ja, captures, ALWAYS restores en).
#
# Why: the five frames above demonstrate the logo stack is at rest WITHIN a run.
# They say nothing about the axis sylpheed-port's drift was on -- BETWEEN runs,
# where a free-running clock lands somewhere else on a fresh boot. Nothing in
# this corpus covered that axis, and the ptlogo_eff3 era adjudication rests on
# a single capture.
#
# Within-run stability REPRODUCES in session 2:
#   ROI 350x396 at (405,74): frames 1-4 vs 0, max |d| 0, 0 / 138 600 differing
#   whole frame contrast:    47 278 / 51 034 / 58 922 / 72 958 px moving
#
# BETWEEN SESSIONS, inside the 388x423 box the era adjudication uses:
#   645 of 164 124 px differ, max |d| 41, RMSE 0.3215
#   whole frame, for contrast: 116 492 px differ, max |d| 51
#   -- so the two captures are genuinely from different sessions.
#
# THE VERDICT REPRODUCES TO THREE DECIMALS:
#                              vs session-1 capture   vs session-2 capture
#   stale era rest (108,72)          58.412                 58.413
#   fixed era rest  (98,42)          41.690                 41.692
#   margin                           16.722                 16.721
#
# 📌 And the shape of that is the useful part: capture noise moves BOTH
# candidates together, so it very nearly cancels in a MARGIN. The absolute
# scores moved 0.001-0.002 between sessions and the margin moved 0.001, against
# an in-box capture noise of 0.32. A margin between two renders scored on one
# capture is far more robust than either score is.

################################################################################
# 🔴 CORRECTION -- 2026-08-30, same day. The BETWEEN-SESSIONS block above rests
# on a premise I have now measured and it is FALSE.
#
# It reasons that a second session probes a new axis, "where a free-running
# clock lands somewhere else on a fresh boot". It does not. Both captures were
# shuttered on the plate pulse, and the plate's pulse is PART of the title
# animation, so the gate synchronises the shutter to the animation's phase.
#
# Measured (structures/plate-pulse-phase-lock.md): at the shutter instant, the
# sweep strips sit 25-26 px apart between two runs in DIFFERENT locales and
# different sessions -- 1.6 % of a ~1600 px traverse.
#
# CONSEQUENCES:
#   * "in-box capture noise of 0.32" is a PHASE-LOCKED LOWER BOUND, not capture
#     noise. At an arbitrary phase the figure is 11.9 (two EN captures a
#     plateau-phase apart). Do not reuse 0.32 as a noise floor.
#   * I read 0.32 as showing the JP title is still. It shows the GATE works.
#
# WHAT SURVIVES UNCHANGED:
#   * The margin 16.72 exceeds even the un-locked 11.9, so the era adjudication
#     holds either way -- and holds FOR THE REASON THIS FILE GIVES: noise moves
#     both candidates together and nearly cancels in a margin.
#   * The five-frames-per-run at-rest result, which is not gated per frame and
#     therefore does sample different phases.