Two corrections from the port agent, both of which make earlier claims smaller.
1. Its 'reproduces your published centres to half a pixel' was model against
model. This corpus's 981/478 are the model's output at t=355, not the
capture's; the capture measured 992.0/467.2, the 11.5 px residual the page
declines to fit. So that control shows two implementations of one model
agreeing, not the model matching the oracle. Neither of us applied the
correlated-instrument test to that sentence at the time.
The discriminator survives: it asks whether two captures are the same frame,
and the model is monotone in t at ~4 px/unit, so a 42-unit gap cannot come
out of one frame however wrong the absolute times are. Recorded as such.
2. Running my 'grep for the symptom' audit against its own tree, the port found
the opposite failure: a control recorded in BOTH a tool table and a document,
drifted to 53.3 % and 53.2 %, with the evidence file gone so neither can be
re-measured. One hard-to-find record announces itself as missing; two
disagreeing records announce nothing, which is worse.
So the rule is not 'write it down twice' -- one record in docs/re/,
everything else cites it, and any number that must appear twice is generated
rather than typed.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
The port ran the check and returned 294.9. Different frames; both measurements
stand. Its renderer also reproduces this page's published t=355 centres to half
a pixel on both quads, which is the control that makes the 295 worth anything,
and it confirms the 600/720 cycles from its own export rather than from the
header word.
Worth recording as method: the observable and the value were specified before
the port computed anything, so it produced the number without knowing whether
295 was the pass or the fail. Neither agent checked its own instrument with its
own instrument.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
The port asked whether the refined sweep fit t=357.7 was measured against
live-title-build4-no-plate.png, because if so one of us is 42 units out.
It was not. 357.7 was solved against title-draw-capture-vertex-colours.log, a
GPU per-draw capture of the submitted vertex buffer -- four observables at once,
two quad centres and two vertex alphas. No framebuffer, no PNG.
The gap is not a fitting error either. Posing the leaves directly, t=400 misses
the captured quads by +169.0 and -172.2 px. Probe control: it reproduces the
page's published t=355 centres, 981 and 478, exactly.
Refutation attempted and FAILED: I expected the port's fit to be minimised by
the quad leaving the screen -- 'best fit' meaning 'draws least', the same shape
as the .tbm control that could not fail. At t=400 quad B is fully on screen and
quad A is 319 of 400 px. Their number is fitting something present and it
survives.
The real reason the two must differ is better than 'different frames'. The
sweeps are nested records on a free-running loop and their cycles differ -- 600
and 720, read from the record header +0x08 -- while the top-level clock stops at
settle. So two captures of the same settled title share a screen time and not a
sweep phase, by construction.
Consequence for the port: a sweep position does not date a frame; it gives a
phase on a 600- or 720-unit loop. And 357.7 is a joint fit over both leaves
while the port's ~400 poses one, so the two are not comparable in kind -- the
phases coincide only every LCM 3 600 units.
Discriminator handed to the port rather than taken: if its ~400 is pteff03 and
the frame is in the first cycle, pteff03a must be at centre 295 in that same
frame. The fit is against its renderer, so it owns the check.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
The port checked my pivot claim rather than taking it and found the nuance: the
sprite is odd-width, 399, so its true centre is 199.5 against a declared pivot of
200. Half a pixel, far inside the 0.70 and 0.48 px agreement, so it changes
nothing -- but "the pivot IS the centre" is the kind of sentence somebody leans on
for a sub-pixel claim later, so the page now says it is the centre rounded up.
And records the general form of the two bugs this exchange produced, which share
one cause. First, a leaf-composition rule was checked against alpha, which moves
about 0.3 levels per keyframe unit, so a one-keyframe association error barely
shifted it and the rule looked confirmed -- while the same span moved x by
1560 px. Second, fitting t from that same alpha manufactured an 11.5 px position
residual that did not exist and sent the consumer hunting a pivot rule to explain
it, because one byte of alpha quantisation is worth 1.5 to 1.9 keyframe units.
Solve on the fastest-moving field and check the slow one, never the reverse. The
second failure is the more expensive: failing to falsify leaves you falsely
reassured, but inventing a residual sends you looking for a mechanism.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Left open earlier as do-not-fit. Closed by adding observables rather than tuning
a parameter.
The draw s vertex buffer carries positions and colours at the same instant, so
all four quantities must agree on one t. Solving independently: quad A x gives
357.88, quad B x 357.58, quad A alpha 355.75, quad B alpha 354.09. The alphas are
about 50x less precise per unit of time because alpha is a byte changing by only
0.27 to 0.33 levels per keyframe unit, so a single level of quantisation is worth
1.5 to 1.9 units, which at 4 px per unit is 6 to 8 px of sweep. The 11.5 px was
that.
At the position-derived t = 357.7 every observable lands: centres within 0.70 and
0.48 px, both alphas inside one level, and the parent alpha is 0 throughout. And
there is no pivot correction to find -- the leaf pivot is (200,90) against a
399x180 sprite, so the pivot is the sprite centre and rotation displaces it by
nothing.
The methodological point is the one this exchange started with, inverted. Earlier
a rule looked confirmed because it was checked against alpha, the insensitive
field. Here the same insensitivity manufactured an apparent 11.5 px error. The
insensitive quantity does not merely fail to falsify, it invents residuals. Solve
on the fastest-moving field and check the slow one, never the reverse.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Refutes a DECISIONS claim and decodes the element the port withheld on my say-so.
The claim that title_jp s ptlogo_eff2 at 125 percent is the single drawn element
in the whole export at a scale that is not a whole multiple of 100 percent rested
on a census of PARENTS only. Opening the 45 leaves as well finds thirteen
distinct non-whole-multiple scales -- 75, 96, 99, 101, 103, 112, 125, 150, 204x208,
210x220, 250, and the 75x100 / 96x100 / 99x100 pairs -- with 125 among the rarest
at two occurrences. ptlogo1 and ptlogo2 carry 101/103/112 on the ENGLISH title
too, so it is not a Japanese-build peculiarity. The claim s real content was "the
only one the port draws", which is about the export s element set rather than the
disc.
And ptlogo_eff2 is decoded. The 125 percent lasts 57 units, about 0.95 s -- a
scale-0 to 125 to scale-0 flash between t=50 and t=107, a transient rather than a
steady state, which is why it looked anomalous in a census of resting poses. The
leaf draws at 100 percent as two superimposed copies of the same sprite at alpha
160 and 80, each rotating a full 360 degrees over 960 units: a slow double-layered
spin, 16 s per revolution.
This is exactly the case the ptloop rule could not separate. There the parent had
expired so leaf-wins and parent-ignored were indistinguishable; here the parent
carries real geometry including a scale that reaches zero twice. If parent scale
gates the leaf the spin is a 0.95 s flash; if the leaf runs on its own timeline it
spins for 16 s. Nothing on the disc chooses between them, and title_jp has no
oracle capture, so it is undecodable in this container -- the port is right to
withhold it, and the Japanese-locale capture MISSION has parked would settle it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
They implemented the leaf rule and reported the leaf top-left at x about -324 at
t=355, off-screen left, against 781 here, and asked how a rotated 600-percent
quad s declared pos relates to its drawn centre. It is not a geometry question.
Their stated pairing is t=150 at x=-639, t=540 at x=-39. On the disc the poses
-639 / -39 / 1521 carry times 0 / 150 / 540. Their pairing gives each pose the
NEXT pose s time -- exactly the association ui-keyframe-record-layout.md refuted
and HANDOFF carries a red banner about. Feeding their pairing into the same
interpolation reproduces -324 to the digit.
With the corrected association t=355 gives top-left 781 and centre 980.5 for the
399-wide sprite, against 992.0 measured off the capture.
So the leaf path still carries the pre-fix association although the top-level
parser was corrected: a leaf is parse_build on a sub-slice, so anything reading
leaves through a separate path can still be shifted.
And the reason it looked confirmed is worth keeping: alpha at t=355 sits inside a
long segment where a one-keyframe shift barely moves it, while x sweeps 1560 px
over the same span. The rule matched on the insensitive quantity and was wrong on
the sensitive one -- check a new interpretation against the fastest-moving field,
not the one that happens to agree.
The residual 11.5 px between 980.5 and 992.0 is left open rather than fitted; a
rotation about a declared pivot rather than the centre would displace by roughly
that much and nothing here measures it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Answers the port s question, which they refused to guess at: they emit both a
parent record and its nested leaf, each with an alpha ramp over a different
span, and would not draw the leaf without the composition rule.
The per-draw capture records vertex colours, and on the title s ptloop draw they
are C3FFFFFF and B6FFFFFF -- alpha 195 and 182, not 255 -- so the composed alpha
is observable.
Fitting ONLY the two alphas against the two leaf ramps gives one consistent time,
t = 355, where leaf A is 194.8 against an observed 195 and leaf B is 182.2
against 182. The parent has expired there: it returns to 0 at t=250 and a group
holds at its last keyframe. So leaf times parent over 255 predicts zero for both
quads and the sweeps would be invisible. They are drawn.
The position check was predicted rather than fitted: nothing about x entered the
fit, and the same t=355 places the quad centres at 981 and 478 against 992.0 and
467.2 measured off the capture -- within about 11 px on 400-px quads travelling
1560 and 1950 px. Four quantities from two differently-shaped ramps agree on one
time.
The rule: a leaf carrying geometry animates on its own timeline and the parent s
alpha does not gate it. For these records the parent is a container with no
sprite.
Reach stated: one draw, one capture, one element pair, and specifically the case
where the parent carries no geometry. The opposite case is already recorded --
for a button a base record s leaf duplicates the parent and the parent wins -- so
the discriminator is which record carries the geometry, not a fixed precedence.
And because every observation here has parent alpha 0, "the leaf wins" is not
separated from "the parent is ignored because it draws nothing"; a capture during
t=100 to 238 would separate them.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
