# Phase 4AP: exact, process-isolated conditioning interface

This independent engineering branch repairs process ownership, not neural
mathematics. Phase 4AO remains sealed `FAIL-POSTPROCESS-MODULE-IDENTITY`.
It is not resumed or reclassified. No source in its 51-file inventory changes.

## Registered scope

The new registration covers 12 trial slots: **one explicitly imported, complete
AO neural checkpoint and 11 new neural executions**, 14,400 covered ticks and
13,200 new ticks. The imported slot is D1/reference/epoch-000. Its original case,
requests, spec and checkpoint paths remain unchanged. Incomplete AO process
evidence is never replaced by a successful AP process claim.

Reuse both sealed AO request arrays byte-for-byte. Zero new sampler calls;
no seed selection, resampling, rate/parameter rescue or data-selected retry.
The two A epochs, original full 63-bit seeds, fixed PAM15 compartment, timing,
D1/D0/frozen arms and reference/light recording modes are inherited exactly.
New case specs differ only in output budget root/cap, with per-field derivations.
Each epoch starts a fresh neural state. Only its own arm/mode's preceding delta
is carried. This does not implement retention-state transition.

## Process ownership

Each new brain trial runs in a new `python -B` exec process using the frozen
ordinary runtime. It seals its checkpoint before returning. The separate CPU
update process loads only the frozen epoch adapter E and its verified dependencies,
with CUDA hidden before scientific imports. The coordinator never calls E.
No module binding is deleted, no private cache is cleared, no verifier is relaxed.

The imported trial also receives fresh CPU postprocessing into AP, with no brain
rerun. Its delta raw float32 bits and update receipt must match the separately
sealed AO isolation diagnostic. NPZ container byte equality is not required.

## Integrity and admission

Commit all five new source files before preregistration. Bind actual input/source
and prepared-case SHA-256, prior seals, source commit, actual saved requests,
and the imported authority. Pin external registration SHA before executing.
Job SHA is externally passed to each child. Verify input/source bytes before
and after execution. Bind the complete output hash inventory, checkpoint/chain,
authority, parent delta, actual child exit status and logs. Exclusive attempt,
output and receipt paths prevent retry after partial failure.

Single physical RTX 4090 UUID GPU-79f3a85d-adce-7833-7003-6488140ca596 only.
Check all three existing ComfyUI queues before every brain trial; never stop or
evict their services. Preserve precision configuration. Finite AP output cap
4 GiB, reserve 10 GiB, child timeout 1,800 seconds. Stop on first failure and
preserve all partial evidence. Never restart because the observing SSH command
or tool times out; inspect actual process/log state first.

## Pass gate and interpretation

- Six reference/light pairs: exact observed spikes, counters, final state,
  delay state and delta; inherited Q gate with independent expected effective
  weight hash computed from frozen base, frozen fast-APL mask and actual delta.
- Six zero-weight cross-arm comparisons: D0/frozen in each epoch and
  D1/D0 before any update, separately for each recording mode.
- Original U receipt recomputation, correct compartment/mask/floor, exact
  D0/frozen positive-zero delta and actual D1 nonzero update coverage.
- Second D1 epoch actually installs its own preceding delta file/raw bits.
- All previous sealed AO/diagnostic/AN/AM and 28 protected roots remain intact.

If all checks hold, status is
`PASS-EXACT-PROCESS-ISOLATED-DELTA-INTERFACE-NOT-LEARNING`.
If D1 has no actual nonzero update coverage, report
`INCOMPLETE-NO-NONZERO-UPDATE-COVERAGE`, not a synthetic success.
Failures remain failures; do not rerun with alternative inputs.

Scheduled D is an artificial unconditioned-signal scalar, not a measured dopamine
concentration and not multiplied by accepted DAN events. Report requested,
accepted/rejected US events and actual DAN spikes separately. Unknown anatomical
mapping stays unknown. The frozen APL approximation and its non-KC limitations
remain disclosed. No intermediate light-mode state is claimed observed.

This finite gate is **not learning success**, an A/B behavior evaluation,
retention, full acquisition or a learned-model candidate. Full conditioning
still needs its bounded registered gate/resource plan and validated post-update
same-state transition. Phase 4C's five trial evidence is preserved via AM seals;
this gate does not claim it reruns those trials. No game, RL, decoder, visual or
Web work is included.