Seal AO interface failure and verified isolated postprocessing diagnosis

registry/phase4ao-conditioning-interface/source-snapshot/PROTOCOL_DRAFT.md

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+# DRAFT — fixed-v2 olfactory conditioning in the independent D18 branch
+
+**Status: DRAFT / NOT REGISTERED / NOT APPROVED FOR EXECUTION.**
+
+This document is a proposal for review. It does not authorize a run, record a
+successful gate, freeze a protocol, or generate a learned candidate. It was
+written from frozen H/J/L source and the declared AM interface contract, not
+from selecting favorable AM outcomes. The coordinator must approve the final
+scope, budget, source/input inventory, and exact gate implementation before
+registration. No training or remote action is performed by this document.
+
+## 1. Purpose and entry conditions
+
+The next scientific endpoint should be actual acquisition under the unchanged
+TemporalEligibility-v2 rule, followed, if its registered acquisition gate passes,
+by fixed reversal, delayed-reward, and real-time retention assays. File validity,
+static 25% sensitivity, or a change in delta alone is not learning.
+
+Entry requires the **complete** AM whole-brain interface gate, including its
+registered zero-overlay comparisons, nonzero internal/repeat validation, old
+reference regression, and frozen integrity checks. A partially completed zero
+suite is not this gate. Continue to use the independent D18 branch; do not edit
+or overwrite Phase 1–AM artifacts. The original base CSR, anatomical counts,
+transmitter signs, W_syn, LIF coefficients, APL calibration, D18 timing,
+14,232-edge candidate mask, and eligibility-v2 remain unchanged.
+
+New long-run/continuation plumbing must preserve the exact existing timestep
+operation order. Validate zero-delta and fixed-delta continuation, including a
+split across pending synaptic/APL arrivals, against an unsplit run before using
+it for retention. This is an implementation prerequisite, not another tunable
+scientific endpoint. No game, decoder, RL, visual branch, or brain-gain search
+is in scope.
+
+## 2. Fixed population and replicate matrix
+
+Use the original externally selected 4L odors without re-selection:
+
+* ODOR_A: **4-ethylphenol**.
+* ODOR_B: **3-hexanone**.
+* Both frozen encoder modes: `physiological` and `matched_energy`.
+* Both reciprocal assignments: A reinforced/B neutral, and B reinforced/A
+  neutral.
+* Both exact DAN/type-compartment branches below.
+* Five independent training replicates in each cell.
+
+Thus there are **2 modes × 2 DAN branches × 2 assignments × 5 replicates =
+40 blocks**, or eight experimental cells with five training replicates each.
+
+| Branch identity | Exact raw compartment string | Proposed signed prediction |
+| --- | --- | --- |
+| PAM15 | `y5B'2a` | S > 0 |
+| PPL103 | `y2a'1` | S < 0 |
+
+These identities are drawn from old H/J configuration, not from a rule that all
+PAM is appetitive or all PPL1 is aversive. Preparation must materialize and hash
+the actual DAN body IDs/neuron indices, exact annotation values, confirmed
+DAN→MBON/compartment mapping, and affected existing plastic edges from the
+sealed H mapping. Missing, ambiguous, or unmatched mappings remain `unknown`;
+they cannot be completed by cell-name inference.
+
+The type-level signed predictions above are **new, falsifiable engineering
+hypotheses**. Evidence specifically establishing PAM15's proposed functional
+direction is limited. Correspondence of type labels across fly datasets is not
+proof that these individual MaleCNS bodies have been functionally validated.
+Neither branch is labeled a biologically demonstrated reward/aversion channel.
+
+### Seed inventory
+
+Before outcomes, generate and save the complete RNG lineage and explicit seed
+table for replicate, cell, arm, epoch, CS events, US ordering, and evaluation.
+Use distinct replicate streams, for example an explicitly registered
+`SeedSequence` hierarchy with a newly audited master seed. Test expanded seed
+identities for collisions. Merely choosing five different base integers is
+insufficient: H/J/L used consecutive bases plus the trial number, producing
+overlapping nominal replicate streams.
+
+Matched counterfactual arms may deliberately reuse the same input event table;
+list each such common-random-number alias. They are paired controls, not extra
+independent replicates. All evaluation RNG streams must be disjoint from all
+training/US/control RNG streams. Within a replicate use the same registered
+evaluation events for pre/post/control comparisons. If more than one evaluation
+stream is used per replicate, report/aggregate it within that replicate;
+**five evaluation streams never substitute for five independent training
+replicates**. The minimal budget below uses one independent A/B evaluation
+stream pair per training replicate, reused for paired contrasts.
+
+## 3. Frozen update and explicit US interface
+
+Use the exact frozen J/L v2 implementation and operation order:
+
+* KC trace float32, tau = 100 ms, cap = 1.
+* Every timestep: separate multiply, add actual KC spikes, then clamp.
+* At the registered US tick, sample after that tick's multiply/add/clamp;
+  include its KC spikes. Do not insert an anatomical-delay shift into eligibility.
+* eta = 0.00275 mV, compartment polarity = −1.
+* Additive update only on the already-confirmed compartment mask, with the
+  old float32 floor `−0.25 × base_candidate_mV`.
+* Update once at the end of the training epoch; it affects subsequent epochs,
+  not an earlier part of the same epoch. No recovery, potentiation, or new mask.
+* Install via the verified AM bridge: immutable base SI float64 plus the
+  float32 delta widened to float64 and converted from mV to V. Preserve all
+  untouched weights and fast-APL handling exactly.
+
+The first proposal preserves the old **scheduled dimensionless D = 1** artificial
+unconditioned-signal interface. It is neither measured dopamine concentration
+nor an actual-DAN-spike count. At the same scheduled tick, request spikes in the
+fixed matched DAN population. Record requested, accepted, rejected, and actual
+DAN spikes, including zero-delivery epochs, separately from D. Do not resample,
+boost, or silently discard failed delivery to obtain a preferred result.
+
+Multiplying D by actual acceptance, changing D to a spike count, or adding a
+measured dopamine kinetic model would be a distinct, explicitly registered
+interface hypothesis; none is hidden in this draft. If neural DAN delivery is
+absent, any update still demonstrates scheduled artificial gating, not that
+actual DAN activity caused plasticity. This limitation must remain visible even
+if an engineering output gate passes.
+
+## 4. Epochs, timing, and all actual controls
+
+Training epochs retain the old trial-boundary reset policy: start V/g/ref,
+spike-delay queues, APL state/queue and KC trace from their declared initial
+values; carry only plastic_delta between epochs. Log the state policy. This is
+not continuous natural behavior. Retention deliberately uses the different,
+explicit continuous-state policy in section 7.
+
+Normal epochs last 120 ms. CS occupies 0–100 ms, and a paired US is at 90 ms.
+Delayed epochs last 180 ms; the identical CS occupies 0–100 ms, and US is at
+150 ms, i.e. **50 ms after CS offset** and 60 ms later than the normal US.
+All delayed controls use that same 180 ms duration and 150 ms US slot, including
+the neutral epochs; do not reuse 90 ms controls to attribute delayed effects.
+
+The frozen L encoder mapping/rates and original A/B identity are retained.
+However, old `phase4l.py::run_rates` generated PN events throughout its passed
+120 ms duration. The present 100 ms CS plus a no-CS tail is an explicit new
+experimental timing choice aligned with validated AK input duration, **not** a
+claim of bitwise identity to old L's full training input. `matched_energy`
+matches the frozen encoder's expected total rate, not an artificially edited
+actual Poisson event count; report actual requests and acceptance by condition.
+
+Within each arm, present 50 reinforced-cue epochs and 50 neutral-cue epochs in
+a pre-generated balanced order. The **50 reinforcement opportunities** come
+from L's fixed formal conditioning count, not from a new magnitude search.
+
+| Arm | Actual execution in each normal or delayed suite |
+| --- | --- |
+| paired | 50 CS+ with its matched DAN/US and 50 CS− without US |
+| D=0 | Identical input events and US schedule to paired; D=0 in updates |
+| frozen | Identical input events and US schedule; no delta updates |
+| random reward | Same 50 A/50 B and 50 US opportunities; exactly 25 A and 25 B get US, selected by a pre-generated random balanced schedule independent of responses |
+| unpaired | Same 100 CS epochs and same 50 US events in 50 additional separate, no-CS epochs; preserve total event inventory, declare 150 rather than 100 epochs |
+| CS-only | Same 100 CS epochs, no DAN/US; no scheduled D |
+| DAN-only | Same 50 US epochs and 50 matched blank epochs, no CS |
+
+Every control is genuinely executed; neither identity reasoning nor a text label
+replaces its trajectory. The unpaired arm is specifically **separate-epoch,
+reset-trace unpairing**, not a claim about a long continuous biological
+interstimulus interval. Actual DAN-only network activity may recruit KC and
+produce eligibility; it must be measured, not assumed zero. Blank and US-only
+epochs retain the corresponding 90/150 ms timing slot and 120/180 ms duration.
+
+## 5. Offline signed readout — do not discard contrary signs
+
+Preparation defines complete, exact-annotation MBON12 and MBON01 populations
+from MaleCNS metadata, with all body/index membership and side information. No
+best responding neuron, hemisphere, compartment subset, or evaluation pair is
+selected after outcomes. Missing either population makes this specific readout
+`NOT-TESTABLE`; do not substitute another type or silently use an empty mean.
+
+For an evaluation stimulus X and a fixed 0–120 ms probe window, define:
+
+`B(X) = mean_spike_count(MBON12, X) − mean_spike_count(MBON01, X)`.
+
+This is **offline analysis only**, not an action decoder, a feedback signal,
+or proof of approach/avoidance. Also save both population means separately,
+their sizes and counts, all-MBON output, genuine downstream output, and latency.
+
+Keep two distinct downstream inventories. The frozen H actual-edge table's
+complete target union is `legacyDownstream` (11,342 neurons in the verified
+local data), and contains **all 97 MBONs**. Do not relabel or silently edit that
+old population. Define `nonMBONDownstream` as the exact set difference of that
+union and the complete MBON population (11,245 here). Report both. Requiring
+an effect outside the MBON population is an additional pre-outcome hypothesis,
+not an already inherited H gate; it prevents a purely MBON-local change from
+being counted twice as evidence of broader propagation.
+
+With C denoting that block's reinforced cue and N its neutral cue:
+
+`S_arm = [B_arm(C) − B_arm(N)] − [B_pre(C) − B_pre(N)]`.
+
+Always emit the raw signed B and S, pre/post components and control S. For PAM15
+the proposed relation is **S > 0**; for PPL103 it is **S < 0**. Never replace raw
+S in the report with `abs(S)`, `polarity × S`, a magnitude-only score, or a
+renamed “positive learning score.” An opposite sign is a counterexample to the
+prediction, even if a magnitude or unsigned separation statistic increases.
+
+The expected-control relation is equally explicit:
+
+* PAM15: `S_paired > S_control` for each registered control.
+* PPL103: `S_paired < S_control` for each registered control.
+
+Use matched evaluation inputs and each arm's matched pre baseline. All probe
+updates and US inputs are off. Evaluation begins from the same frozen initial
+state for acquisition/reversal/delayed comparisons; retention uses its saved
+continuation state and time-matched frozen control as specified below.
+
+## 6. Acquisition and strict reversal gates
+
+### 6.1 Acquisition — newly proposed signed gate
+
+For each of the eight cells, a successful training replicate must satisfy all:
+
+1. The raw S has the registered direction (PAM15 >0; PPL103 <0).
+2. It lies in that direction beyond **each of the six actually executed
+   timing-matched controls**, not just the easiest control.
+3. The inherited L functional requirement holds: conditioned-cue MBON
+   `Delta_g_max_abs` exceeds neutral-cue `Delta_g_max_abs`, and the conditioned
+   cue has a nonzero MBON spike-count or first-latency change versus its own pre
+   probe. Undefined latency is separately reported, not silently zero-filled
+   into proof of a latency effect.
+4. The inherited H MBON and complete `legacyDownstream` A/B Euclidean
+   separation gains are positive. Independently require positive separation
+   gain in `nonMBONDownstream` as a newly declared specificity/transfer gate.
+   Report all three underlying count vectors and gains, never select whichever
+   downstream definition is more favorable after outcomes.
+
+Require **at least 3 of the 5 independent training replicates to satisfy the
+entire conjunction in the same replicate**. Also calculate the inherited H
+mean-control rule separately. This exact new combined signed gate is a proposal,
+not a claim that H/L already implemented it.
+
+Record acquisition at fixed update counts 0, 1, 2, 5, 10, 20 and 50. Only the
+registered terminal count 50 determines its gate. Do not stop at the best
+earlier count or add pairings after failure.
+
+### 6.2 Reversal — new hypothesis, not H's permissive sign test
+
+After normal acquisition, fork its exact delta into two arms:
+
+* **Reversal:** 50 pairings of the former neutral cue with the same specific DAN
+  branch, and 50 formerly reinforced cue epochs without US.
+* **No-reversal continuation:** 50 further original-cue pairings and 50 original
+  neutral epochs, with matched epoch totals and registered independent input
+  streams. This is an additional real control, included in the budget.
+
+Never reset the learned delta between acquisition and reversal; do not restore
+depressed old-cue edges. Keep the old epoch-reset neural state policy in both
+arms and evaluate from common fresh states. The pure-LTD/no-recovery rule may
+prevent reversal; that is a falsifiable model limitation, not permission to add
+potentiation, recovery, or more trials.
+
+For strict reversal, retain the original C−N orientation when calculating
+`S_acquisition`, `S_reversal`, and `S_continuation` against the **same original
+pre-training baseline**. At the fixed terminal reversal count 50 require:
+
+| DAN branch | Acquisition | Reversal | No-reversal continuation |
+| --- | --- | --- | --- |
+| PAM15 | `S_acquisition > 0` | `S_reversal < 0` | `S_continuation > 0` |
+| PPL103 | `S_acquisition < 0` | `S_reversal > 0` | `S_continuation < 0` |
+
+Additionally require a nonzero change in the former neutral cue's MBON spike
+count or defined first latency between acquisition and reversal, and a nonzero
+change in its actual-downstream event/count output. Save both cue vectors;
+counts alone can conceal a shift confined to the original cue. The same
+replicate must satisfy all conditions, with a 3/5 majority per cell. These are
+**new terminal reversal hypotheses**, fixed before the learning results.
+
+Zero is failure of a strict sign-crossing gate, not reversal. Report H's original
+`sign(acquisition) != sign(reversal)` separately as a legacy statistic; its
+nonzero→zero success case does not satisfy this new gate. Do not claim that
+these engineering sign changes establish reversal of real appetitive/aversive
+behavior.
+
+## 7. Delayed reward and genuine retention gates
+
+### Delayed-reward test — new hypothesis
+
+Run delayed acquisition from zero delta, using the same fixed 50 reinforcement
+opportunities and all six controls in the **180 ms / US-at-150 ms** suite. Sample
+the unchanged trace at 150 ms after that tick's update. Do not extend tau or
+redefine the trace to force delayed learning.
+
+At count 50, require the same signed, functional, downstream and control
+conjunction as section 6.1, with at least 3/5 independent training replicates per
+cell and raw S direction intact. This explicitly tests whether the unchanged
+rule supports this particular delayed schedule. H did not supply an independent
+delayed-reward success threshold; this is a new pre-outcome gate.
+
+Report delayed and immediate signed S side by side and their per-replicate
+difference. Do not require a invented retained percentage, impose a monotonic
+amplitude ratio, pool their seeds, or call an opposite delayed sign a successful
+larger absolute response. Delayed controls cannot be substituted by normal ones.
+
+### Retention — new continuous-state implementation and gate
+
+Fork the terminal normal-acquisition checkpoint and the matched terminal normal
+frozen-control checkpoint. Each includes V/g/ref, pending spike-delay state,
+APL state, the complete D18 APL queue, absolute tick, delta, and relevant RNG
+state. Run real no-input/no-update dynamics continuously to 1 s and 10 s; the 1 s
+checkpoint is on the same idle trajectory used to reach 10 s. Do not reset,
+discard pending events, analytically decay only delta, or fabricate elapsed time
+by changing a seed.
+
+At 0, 1, 10 s, fork independent A/B probes from each checkpoint; probes do not feed
+back into the idle continuation. Use the same registered evaluation streams
+for trained/frozen comparisons at every elapsed time. The probe lasts 120 ms,
+without US or updates. Keep delta constant throughout idle; the model does not
+contain molecular consolidation or recovery, and a pass cannot prove either.
+
+Define signed `S_trained(t)` and `S_frozen(t)` using the original C−N orientation
+and their registered pre baselines. Require, in the **same replicate at both 1 s
+and 10 s**:
+
+* PAM15: `S_trained(t) > 0` and `S_trained(t) > S_frozen(t)`.
+* PPL103: `S_trained(t) < 0` and `S_trained(t) < S_frozen(t)`.
+* Conditioned-cue MBON output has a nonzero spike-count or defined first-latency
+  difference from the time-matched frozen probe; actual-downstream event/count
+  output also differs. Save neutral-cue differences and the complete signed
+  specificity contrasts so a generic global response is not presented as memory.
+
+Require 3/5 independent training replicates per cell, without a fitted amplitude
+tolerance or an arbitrarily chosen “percent retained.” This is a new functional
+retention hypothesis, not the old H reset-and-retest result. Report an optional
+predeclared fresh-state/persistent-delta probe separately as a weight-storage
+diagnostic; it cannot satisfy the real-time gate.
+
+## 8. Legacy gates, new hypotheses, and candidate limits
+
+Retain the following old predicates verbatim as separately labeled audit fields
+where their data definitions apply:
+
+* H: minimum seed majority 3; positive MBON and downstream Euclidean separation
+  gains; the smaller mean gain of its two DAN branches exceeds the maximum
+  mean gain among D0/random/frozen controls.
+* H: legacy reversal sign-inequality and last-retention separation>pre. Disclose
+  the old retention had no actual idle dynamics and is not direct validation of
+  the new real-time protocol.
+* L: conditioned `Delta_g_max_abs`>neutral plus a functional spike/latency change,
+  in at least 3/5 seeds. Preserve the exact old implementation's legacy result as
+  well as the new explicitly defined handling of missing latencies.
+
+There was **no completed inherited delayed-reward gate**, no proven signed
+MBON12−MBON01 valence mapping for these bodies, and no complete L reversal or
+retention assay. The strict signed gates in sections 6–7 are new proposals, not
+historical passes and not thresholds obtained from AL/AM responses.
+
+For the strongest proposed engineering candidate claim, all eight cells must
+pass their registered acquisition and subsequent assay gates, old required
+integrity/control gates, and numerical safety checks. This all-cell conjunction
+is itself an explicit proposed scope of claim; it is not a pre-existing H/L
+aggregate gate. Emit a complete 8-cell×assay table, including contrary signs,
+failures, `NOT-RUN`, `NOT-TESTABLE`, and actual delivery limitations. Do not pool
+one mode/compartment/assignment to rescue another, or silently retain only
+successful cells as the candidate.
+
+Suggested staged execution: run normal acquisition and all six normal controls
+for all 40 blocks first. If the approved overall acquisition gate fails, seal a
+real acquisition failure and stop, recording subsequent assays as `NOT-RUN`.
+Otherwise execute the already registered complete delayed, reversal,
+continuation and retention suites. No gate changes, tuning or new pair choices
+occur between stages. A scientific failure is not a reason to delete evidence;
+an integrity/numerical/resource failure stops execution without a scientific
+success claim.
+
+Even a full engineering pass would not establish odor preference behavior,
+motor learning, natural dopamine concentration, appetitive/aversive valence,
+long-term memory, or readiness for a game. Delta change alone, a file/checksum
+pass, static-overlay sensitivity, or signed output readout alone is insufficient.
+
+## 9. Transparent worst-case runtime and data budget
+
+The original estimate of 38,000 epochs omitted the new no-reversal continuation
+and a full timing-matched delayed-control suite. They cannot be silently added
+without revising the budget.
+
+| Per block | Epochs | Biological seconds |
+| --- | ---: | ---: |
+| Normal paired + five 100-epoch controls + 150-epoch unpaired | 750 | 90 |
+| Delayed paired + five 100-epoch controls + 150-epoch unpaired | 750 | 135 |
+| Reversal | 100 | 12 |
+| No-reversal continuation | 100 | 12 |
+| Total training/control/continuation | 1700 | 249 |
+
+Across 40 blocks this is **68,000 epochs and 9,960 biological seconds**. Real 10 s
+idle progression of trained and frozen retention branches adds 800 s, totaling
+**at least 10,760 s biological time** (107.6 million dt=0.1 ms steps), before
+evaluation probes, implementation validation, and old regressions. Checkpoints
+at 1 s are reused within the 10 s trajectory, not separate additional 10 s runs.
+
+Relative to 38,000: add 4,000 continuation epochs and 26,000 delayed-control epochs.
+All delayed neutral/control epochs are 180 ms, not shortened to 120 ms. The table
+includes this duration correction. Any approved reduction of scope must be
+decided and documented before registration, not after results or a resource
+overrun.
+
+Let measured AM walltime per 100 ms be `t100`. A preliminary linear conversion is
+`107,600 × t100`, plus input generation, updates, evaluation, I/O and validation.
+If `t100=1 s`, this base is 29.9 h; if 5 s, 149.4 h. These are arithmetic scenarios, not
+claimed measured performance: learning may change spike load. Measure and
+reserve a conservative actual budget before registration; enforce a resource
+stop rather than changing the protocol during a run.
+
+Full generated+applied APL traces alone use approximately
+`2 × 4064 × 4 × 10000 = 325,120,000 bytes/biological-second`, hence **more than
+3.18 TiB** for the above minimum. Do not silently carry the small AM experiment
+disk budget into this suite. Per-epoch full neuron counts also total about 45 GB
+at 68,000×166,700×4 bytes, before events or full checkpoints.
+
+The proposed recording policy to approve before registration is: all spike
+events, actual input/delivery logs, per-epoch counts, signed metrics, every delta
+update and full terminal V/g/ref/APL/queue state. Every timestep retains a GPU
+finite-value latch and first-failure tick, **not a CPU copy/hash of all state**.
+At epoch boundaries hash the files and bind the complete chain of parent,
+input, delta-before, events/state/queues, eligibility/D and delta-after. Full
+APL/per-tick reference recordings are restricted to a fixed pre-outcome
+validation inventory, not a result-selected subset. That subset's exact
+comparison must not be described as per-tick regression of all 68,000 epochs.
+Compute capacity from measured event/log
+sizes plus a stated safety reserve, and register an exclusive-output storage
+cap. Do not publish a guessed final compressed size or omit encoder/update/I/O
+latency from walltime accounting.
+
+The frozen L/J metric called `MBON_g_max_abs` is the maximum **across neurons
+of the terminal post-minus-pre g difference**, not a temporal maximum. Save
+`MBON_final_delta_g_max_abs` with explicit SI units and the legacy alias when
+needed. Complete terminal g and sparse events suffice to reconstruct that
+metric; adding a dense time-by-neuron recording is not required by its name.
+
+Even without full histories, all 68,000 terminal state/ring payloads would use
+roughly 507 GB uncompressed, before events and evaluation. Use lossless
+compression and measure real complete-episode outputs before setting the hard
+storage cap. Do not infer final compressed usage from sparse activity alone.
+
+## 10. Evidence, provenance, and unresolved biology
+
+Local source basis (read-only, relative to the project):
+
+* `23-ai-gpu/source/models/male-cns-lif/phase4h.yaml` and `phase4h.py`:
+  exact DAN configuration, old control/majority predicates, old nominal retention.
+* `23-ai-gpu/source/models/male-cns-lif/phase4j.yaml` and `phase4j.py`:
+  frozen float32 trace order and `apply_v2`.
+* `23-ai-gpu/source/models/male-cns-lif/phase4l.yaml` and `phase4l.py`:
+  original odor mapping, 50 formal pairings, input timing, and acquisition gate.
+* `23-ai-gpu/source/wholebrain-plastic-interface-v1/PROTOCOL.md`:
+  unchanged-base bridge, scheduled-US semantics and later-learning boundary.
+
+Relevant primary evidence, with narrow use:
+
+* [Hige et al., Neuron 2015, author institution](https://www.janelia.org/publication/heterosynaptic-plasticity-underlies-aversive-olfactory-learning-drosophila):
+  compartmental KC→MBON plasticity and odor-specific effects motivate local LTD;
+  this does not measure this MaleCNS model's eta, tau or DAN concentration.
+* [Aso and Rubin, eLife 2016, author institution](https://www.janelia.org/publication/dopaminergic-neurons-write-and-update-memories-cell-type-specific-rules):
+  cell-type-specific DAN learning/update rules oppose a universal cluster-valence
+  assumption. They do not functionally identify every MaleCNS body here.
+* [Aso et al., eLife 2014](https://elifesciences.org/articles/04580):
+  MBON population outputs motivate population-level readout. The exact
+  MBON12−MBON01 signed hypothesis and the two predictions in this draft remain
+  explicit cross-dataset/model assumptions, not a demonstrated behavioral scale.
+
+The exact scalar D interface, fixed trace/eta/floor, absence of recovery,
+trial-boundary resetting, simplified signed readout, and 100/120/180 ms timings
+are declared model/engineering choices. In particular, the 1.8 ms anatomical
+synaptic delay is not an eligibility time constant. Physiological applicability,
+PAM15 functional direction in these bodies, continuous intertrial learning,
+behavioral valence and long-term retention remain unresolved.
+
+Before formal registration the coordinator must approve and hash the completed
+population/seed/input inventory, new readout/gate code, exact continuation
+semantics, storage policy/cap, resource budget and final candidate wording.
+Until then this remains **DRAFT — NOT REGISTERED — NO EXECUTION AUTHORITY**.