diff --git a/CURRENT.md b/CURRENT.md
index ba26d84..2202949 100644
--- a/CURRENT.md
+++ b/CURRENT.md
@@ -1,19 +1,38 @@
-# 当前研究状态 — Phase 4AA
+# 当前研究状态 — Phase 4AB
 
-最新封存结果：**PASS-APL-PN-ANATOMICAL-LOCALIZATION / NO-DYNAMICS-CANDIDATE**。
-初始化 README 与原 registry 快照仍按原字节保留；它们描述初始化时的 Phase 4Z 截止状态。最新结论请从本文件进入。
+最新结果：**COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE**。
+初始化 README/registry 保留原字节，最新结论从本页进入。
 
-- [本轮完整报告](docs/progress/phase4aa-apl-pn-scope.md)
-- [本轮证据与最终结果](registry/phase4aa-apl-pn-scope/evidence/audit/final-summary.json)
-- [新模型/审计源码](models/male-cns-lif/apl-pn-scope-audit-v1/PROTOCOL.md)
-- [外部数据官方校验](registry/phase4aa-apl-pn-scope/evidence/external-resources/synaptic-partners/download-verification.json)
+- [本轮中文机制解读](docs/progress/phase4ab-terminal-scope.md)
+- [完整逐气味结果与限制](docs/progress/phase4ab-technical-results.md)
+- [预先声明的诊断方案](models/male-cns-lif/terminal-scope-diagnostic-v1/PROTOCOL.md)
+- [最终结果及 SHA-256 证据](registry/phase4ab-terminal-scope/evidence/audit/final-summary.json)
+- [上一轮官方突触空间定位](docs/progress/phase4aa-apl-pn-scope.md)
 
-新增事实：268 条 APL→PN 边、4,600 contacts；3,820 contacts 在官方 CA(L/R)，731 仍为 CentralBrain-unspecified。
-七个重点 PN 的 APL 输入集中在 calyx，而其局部 ALLN 回路主要位于触角叶。受体、末梢作用系数与功能因果仍未确认。
+## 新证据
 
-5/5 frozen-v2 trials 事件/计数/V/g 精确一致；230,239 个旧科学文件哈希不变。
-没有训练，没有新动力学候选，顶层 gates 仍是 5/10（50%）。
-下一步是预先定义 compartment/terminal-specific upstream 假设和对照，不直接改冻结模型，不调学习率来制造通过。
+以官方 primary_post ROI 和真实 APL→PN / PN→KC 接触选择 229 个 PN。
+局部诊断范围是 20,263 条边中的 337,099 个 calyx 接触，影响 3,760 个 KC。
+没有把 46,159 个未细分 ROI 的 PN→KC 接触重标为 calyx；没有推测 bouton/receptor。
 
-官方 syn-partners 附加数据为 6,777,179,098 bytes，在新实验 external-resources 目录；raw 不变，未下载 EM。
-Git 只保存代码、报告和 manifest；新增完整配对数据尚未异机备份。
+24 组主对照（6 个旧 calibration 气味、一个旧 seed）显示：
+
+- 仅阻断上述 calyx 接触，目标 KC82312 晚期 spikes 从 60–61 降到 0。
+- VA6 PN 晚期仍有 212–214 spikes；受观察的 ALLN 仍有 454–456 Hz 活动。
+- 全部活跃 KC 从原来的 139–172 个降到 1–2 个：这不是编码/记忆修复。
+- 更广的 PN 快速输出阻断使回路近乎静默，不能把这种结果认作正确生理模型。
+
+上述只是独立工程极端对照，不是 APL 抑制强度标定；未保存正式新权重。
+Base CSR、raw counts、transmitter signs、LIF/APL calibration、eligibility-v2 和 14,232 plastic mask 不变。
+
+## 验证与状态
+
+6 组历史 trial 精确重现，4 组诊断重复精确一致，5/5 frozen deterministic-v2 reference 回归精确通过。
+230,239 个原有科学文件及 Phase 4AA 模型/数据 manifests 前后完整性通过。
+6 项单元测试、10,000 个随机算子检查通过；ComfyUI 未停用/卸载，未升级依赖。
+
+顶层 gates 仍是 5/10（50%）；本轮改进了机制定位和可重复诊断，不代表已获得学习能力。
+下一步优先约束 upstream feedback 与局部 compartment physiology，不能靠增大整体抑制、调学习率/阈值或扩大 mask 达成通过。
+不进入游戏、RL、视觉或 action decoder。
+
+Git 仅同步代码、小报告和校验清单。大数据/全部 spike 输出保留在服务器，不等于已有完整异机备份。
diff --git a/docs/progress/phase4ab-technical-results.md b/docs/progress/phase4ab-technical-results.md
new file mode 100644
index 0000000..2717dee
--- /dev/null
+++ b/docs/progress/phase4ab-technical-results.md
@@ -0,0 +1,52 @@
+# Phase 4AB — calyx contact-scope diagnostic
+
+Status: COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE.
+Diagnostic interventions only; no calibrated biological inhibition, no training, no parameter winner.
+
+Eligible PNs: 229/259. CA mask: 20263 edges / 337099 contacts.
+Affected KCs: 3760. Mixed-ROI affected edges: 3323; retained other contacts: 28975.
+Broader PN→KC control: 21882 edges / 384555 contacts. All-fast-PN-output control: 116211 edges / 1268111 contacts.
+
+| Odor | Condition | Active KC | KC late spikes | KC82312 late | VA6 late |
+|---|---|---:|---:|---:|---:|
+| ethyl (R)-(-)-3-hydroxybutanoate | frozen_reference | 160 | 114 | 60 | 213 |
+| ethyl (R)-(-)-3-hydroxybutanoate | calyx_PN_KC_contact_block | 1 | 39 | 0 | 214 |
+| ethyl (R)-(-)-3-hydroxybutanoate | all_PN_KC_block | 1 | 39 | 0 | 214 |
+| ethyl (R)-(-)-3-hydroxybutanoate | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| 3-penten-2-one | frozen_reference | 172 | 118 | 60 | 213 |
+| 3-penten-2-one | calyx_PN_KC_contact_block | 2 | 39 | 0 | 213 |
+| 3-penten-2-one | all_PN_KC_block | 1 | 39 | 0 | 213 |
+| 3-penten-2-one | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| (2R)-hexan-2-ol | frozen_reference | 144 | 117 | 61 | 213 |
+| (2R)-hexan-2-ol | calyx_PN_KC_contact_block | 1 | 39 | 0 | 213 |
+| (2R)-hexan-2-ol | all_PN_KC_block | 1 | 39 | 0 | 213 |
+| (2R)-hexan-2-ol | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| gamma-propyl-gamma-butyrolactone | frozen_reference | 151 | 117 | 60 | 212 |
+| gamma-propyl-gamma-butyrolactone | calyx_PN_KC_contact_block | 2 | 39 | 0 | 212 |
+| gamma-propyl-gamma-butyrolactone | all_PN_KC_block | 1 | 40 | 0 | 212 |
+| gamma-propyl-gamma-butyrolactone | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| 2-methyl butyl acetate | frozen_reference | 139 | 118 | 61 | 213 |
+| 2-methyl butyl acetate | calyx_PN_KC_contact_block | 1 | 39 | 0 | 212 |
+| 2-methyl butyl acetate | all_PN_KC_block | 1 | 39 | 0 | 212 |
+| 2-methyl butyl acetate | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| ethyl (S)-(+)-3-hydroxybutanoate | frozen_reference | 163 | 119 | 61 | 214 |
+| ethyl (S)-(+)-3-hydroxybutanoate | calyx_PN_KC_contact_block | 1 | 39 | 0 | 214 |
+| ethyl (S)-(+)-3-hydroxybutanoate | all_PN_KC_block | 1 | 39 | 0 | 214 |
+| ethyl (S)-(+)-3-hydroxybutanoate | whole_PN_output_block | 0 | 0 | 0 | 0 |
+
+Late means 500–1,000 ms; 120 ms old calibration odor input; one seed, six old odors. No held-out generalization claim.
+Identical scheduled requests across conditions. Delivered request-associated output differences versus reference: 459 (summed over all comparisons). See per-trial table; this is state/refractory feedback, not a changed RNG.
+
+## Interpretation limits
+
+CA selection uses exact primary_post labels plus matched APL→PN/ROI metadata, not bouton identities or inferred receptors. Unknown ROIs are not reclassified.
+Whole-PN control removes fast output, not somatic spikes or the frozen graded APL input. It is not a complete PN knockout.
+Reduction/silencing is not restored information or associative memory. No condition becomes a formal model. Fixed-event replay freezes other recorded events/APL; dynamic trials allow natural recurrent feedback.
+Local-inhibition motivation: [Prisco et al.](https://doi.org/10.7554/eLife.74172), [Amin et al.](https://doi.org/10.7554/eLife.56954). These sources do not establish the complete-block operator as physiological.
+
+## Verification
+
+Six original trials reproduced exactly (whole spike events, watched state and final counts/V/g). Four first-odor repeats exact. Five deterministic-v2 frozen reference trials exact. Finite state throughout.
+Original 230,239 files and both Phase 4AA manifests rechecked before/after. Base CSR/count/sign, frozen LIF/APL, eligibility-v2 and 14,232 plastic mask preserved.
+Timing includes diagnostic CPU/GPU observation overhead and is not a runtime speed benchmark. ComfyUI was not stopped or unloaded.
+Top-level acceptance gates remain 5/10 (50%); anatomical diagnosis is not evidence of learning success.
diff --git a/docs/progress/phase4ab-terminal-scope.md b/docs/progress/phase4ab-terminal-scope.md
new file mode 100644
index 0000000..8fd8a54
--- /dev/null
+++ b/docs/progress/phase4ab-terminal-scope.md
@@ -0,0 +1,36 @@
+# Phase 4AB 机制解读
+
+正式状态：**COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE**。
+
+这一轮区分了“PN→KC 传入位置”与“维持 PN 放电的上游反馈”。没有修复或批准新的 APL 生理模型，也没有训练。
+
+| 诊断范围 | 活跃 KC（6 个旧气味） | 目标 KC 晚期 spikes | VA6 PN 晚期 spikes |
+|---|---:|---:|---:|
+| 原模型 | 139–172 | 60–61 | 212–214 |
+| 仅明确 calyx 接触 | 1–2 | 0 | 212–214 |
+| 同批 PN 的全部 KC 输出 | 1 | 0 | 212–214 |
+| 同批 PN 的全部快速输出 | 0 | 0 | 0 |
+
+晚期窗口是 500–1,000 ms。每个气味沿用 seed 131101；总计 24 组诊断、4 次精确重复，不是 5-seed 学习验证。
+
+## 能说明什么
+
+仅 calyx 接触阻断后，目标 KC82312 的晚期 spikes 范围为 0，VA6 仍为 212–214。
+同时 KC 总活跃数降为 1–2，原模型为 139–172。不能把这种接近静默的结果包装成编码或记忆改善。
+即使两个局部阻断条件的事件序列相同，其电压/g 仍可能不同；逐气味比较见 narrow-vs-allKC.csv。
+宽范围 PN 快速输出阻断影响反馈路径，不等价于局部 calyx 调制；它也没有关闭 PN 胞体或 frozen graded APL 的 PN 输入。
+
+## 仍不能说明什么
+
+完全阻断只是工程极端对照，不是 APL 的实测释放抑制比例。没有估计 receptor、bouton、局部扩散范围或时间常数。
+未使用 held-out 气味，未检验学习、保持、反转或动作输出。不得选取这次“让活动更少”的操作作为正式脑模型。
+剩余 late KC 的 ID/type 已单独保存；其来源不能仅凭残余计数猜测。
+
+## 下一步边界
+
+先继续 upstream feedback / compartment-specific physiology 的证据约束，区分 calyx 信号传递与触角叶持续放电，再确定可检验的局部动力学假设。
+不能靠增加整体抑制、调 eta/threshold、扩大 plastic mask 或让 KC 全静默宣称修复。当前不进入学习、游戏或视觉。
+
+相关原始研究：[Prisco et al., 2021](https://doi.org/10.7554/eLife.74172)、[Amin et al., 2020](https://doi.org/10.7554/eLife.56954)。它们支持研究局部 APL 作用，不直接验证本实验完全阻断幅度。
+
+顶层验收仍为 5/10（50%）；本轮推进的是机制定位与可重复诊断能力。最终完整性状态见 regression/final-integrity.json。
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/PROTOCOL.md b/models/male-cns-lif/terminal-scope-diagnostic-v1/PROTOCOL.md
new file mode 100644
index 0000000..d28c8af
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/PROTOCOL.md
@@ -0,0 +1,86 @@
+# Phase 4AB — calyx contact-scope counterfactuals
+
+This is an exploratory mechanism diagnostic, NOT an APL physiological model,
+learning experiment, parameter calibration or new formal runtime candidate.
+All previous scientific artifacts remain read-only. Only new output directories
+are permitted. No additional download is required.
+
+## Question and predeclared controls
+
+Does removal of anatomically labelled calyx PN→KC input alter persistent KC
+activity without also removing the same PNs' antennal-lobe output?
+
+Select PN/ROI pairs from actual Phase 4AA APL→ALPN synaptic contacts whose
+`primary_post` is exactly `CA(L)` or `CA(R)`. Select PN→KC contacts only when
+their source PN and actual `primary_post` match that pair. This is **ROI-level
+co-location**, not proof of the same bouton, receptor, physiological coefficient,
+or even a per-presynaptic-site ROI annotation. `primary_post` labels the
+postsynaptic site. Never reclassify `CentralBrain-unspecified` by proximity.
+
+Compare four conditions on the same eligible PN set:
+
+1. Frozen reference; no changed weights or injected current.
+2. Block only the matched CA PN→KC contact component.
+3. Block all PN→KC output of those PNs, irrespective of ROI.
+4. Block all fast outgoing synaptic weights of those PNs (broad scope control).
+
+These are complete-block engineering interventions, not estimates of biological
+APL inhibition. There is no strength sweep or winner selection. Condition 4
+does **not** silence PN somata or alter their force requests. The frozen graded
+APL input matrix remains active in all four conditions; condition 4 is therefore
+not a complete PN knockout. All fast edge slots remain present. Output masks are
+not plastic masks, and nothing is written back to base CSR or an old model.
+
+For condition 2, the in-memory diagnostic effective weight is
+`float32(float64(frozen_effective_weight) * (raw_count - CA_count) / raw_count)`.
+The linear per-contact decomposition is an engineering consequence of the
+existing linear weight model, not a measured transmitter-release law.
+At strength zero there is no arithmetic or write at all; identity must be exact.
+Conditions 3/4 set only the declared fast effective weights to zero. Anatomical
+counts, transmitter signs, LIF/refractory/delay, APL matrices and calibration,
+eligibility-v2 and the 14,232 plastic-edge mask remain frozen.
+
+## Trials and measurements, declared before results
+
+Use all six old calibration odors, seed 131101, the frozen Phase 4V DoOR→PN
+request generator, 120 ms stimulus followed by observation to 1,000 ms. Do not
+consume held-out odors. Reset all states between trials. Repeat every condition
+for odor 0 to test exact determinism. No DAN reinforcement or weight training.
+
+Record all spike events, all final counts/V/g, watched PN/KC/ALLN states, original
+force requests and their accepted/preexisting/blocked status, KC active fraction,
+late KC82312/VA6/ALLN activity (500–1,000 ms), and class-wise counts. All conditions
+share requested inputs; delivered events need not match because recurrent state
+and refractory periods can change. Explicitly report this distinction.
+
+Unmodified trials must reproduce Phase 4Z whole events, watched states and
+Phase 4Y final arrays bit-for-bit. Each first-odor repeat must be exact. Run the
+five frozen Phase 4C trials against the deterministic-v2 archived oracle in new
+output paths. Original v1 files remain preserved, not relabelled as deterministic.
+
+Additionally, replay the first frozen trial with its recorded events fixed, using
+the frozen ordered reduction and 18-step queue to validate locality: no terminal
+mask affects non-KC arrivals; broad controls may do so. This fixed-event test
+only measures the direct operator, not whole-brain causality.
+
+## Interpretation gate
+
+Reduced KC activity alone is not repaired encoding or memory. A broad blockade
+can destroy useful drive. If CA blockade fails to remove the late KC response,
+report that it is insufficient under this model; do not increase gain or relabel
+unknown contacts. If it succeeds while ALPN/ALLN persist, report scope-specific
+model counterfactual evidence, not proof that biological APL has that strength.
+No result in this phase can generate a learned/physiological candidate.
+
+## Source boundaries
+
+- MaleCNS official v1.0 syn-partners, CC BY 4.0, already verified in Phase 4AA:
+  https://male-cns.janelia.org/download/
+- Prisco et al. (2021), doi:10.7554/eLife.74172: local calyx APL interactions;
+  does not assign MaleCNS edge-specific inhibition coefficients.
+- Amin et al. (2020), doi:10.7554/eLife.56954: spatially localized APL activity
+  and inhibition; does not validate the present engineering complete-block rule.
+
+Unknown: bouton identity, receptor distribution, strength/time course of terminal
+release modulation, and whether adding such physiology would rescue memory.
+No game, decoder, RL, visual input, threshold/eta tuning, or next-phase training.
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/README.md b/models/male-cns-lif/terminal-scope-diagnostic-v1/README.md
new file mode 100644
index 0000000..4e875ae
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/README.md
@@ -0,0 +1,39 @@
+# Terminal-scope diagnostic v1 (Phase 4AB)
+
+Independent engineering counterfactual harness, **not a formal brain model**.
+Read `PROTOCOL.md` before interpreting any result. Frozen input datasets and
+scientific sources are mandatory; no data are fetched by this stage.
+
+## Sequence
+
+Use the existing scientific environment with `PYTHONDONTWRITEBYTECODE=1`,
+`OMP_NUM_THREADS=4`, `OPENBLAS_NUM_THREADS=4`, `MKL_NUM_THREADS=4`:
+
+1. `python -B -m unittest -v test_scope`
+2. `python -B diagnostic.py prepare` (new empty experiment directory only)
+3. `python -B validate.py`
+4. `python -B launch.py` (explicit frozen module paths, single 4090)
+5. `python -B environment.py`
+6. `python -B analyze.py`
+7. `python -B diagnostic.py finalize`
+8. `python -B publish.py` (new small Git evidence copies only)
+
+The completed output is sealed. **Do not rerun these commands into its directory.**
+Unit tests may be rerun read-only. An independent full replication requires a new
+isolated experiment/model directory, with its paths changed consistently in the
+copied configuration/entry points before preregistration. Retain this original
+source and every old output. The current protocol also includes four in-run exact
+repeats, six historical exact comparisons and five archived reference checks.
+
+`launch.py` fixes the initial import-path failure without editing the five
+preregistered source/config files. `analyze.py` is a post-hoc summary only and
+does not launch any additional experiment or fit any parameter. Additional helper
+hashes and imported code hashes are captured in the final manifest/protocol.
+
+The existing environment is reused, never upgraded. ComfyUI queues are checked
+between trials; a busy service causes deferral, not eviction. Performance includes
+observation overhead. The historical APL graded input/output remains unchanged.
+
+All-fast-PN-output blockade is not somatic silencing and not a complete knockout:
+PN spikes still contribute to the frozen graded APL input. `primary_post` is a
+postsynaptic ROI label, not a reconstructed bouton identity. Unknown stays unknown.
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/analyze.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/analyze.py
new file mode 100644
index 0000000..745c8aa
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/analyze.py
@@ -0,0 +1,89 @@
+"""Post-hoc interpretation only; no further trials, selection or parameter changes."""
+from pathlib import Path
+import sys
+import numpy as np
+import pandas as pd
+
+ROOT = Path('/data/digital-drosophila'); MODEL = ROOT/'models/male-cns-lif/terminal-scope-diagnostic-v1'
+EXP = ROOT/'experiments/phase4ab-terminal-scope'
+sys.path.insert(0, str(MODEL))
+import diagnostic
+cfg, _, _, _, save, digest, _, _ = diagnostic.load_context()
+assert (EXP/'audit/run-complete.json').exists()
+m = pd.read_parquet(ROOT/cfg['canonical']/'neuron-index/unified-metadata.parquet').sort_values('neuron_idx').reset_index(drop=True)
+trials = pd.read_csv(EXP/'audit/trials.csv'); watched = pd.read_csv(EXP/'audit/watched-counts.csv')
+remaining, comparisons = [], []
+for oi in cfg['odor_indices']:
+    names = {c: f'{oi}-{cfg["seed"]}-{c}' for c in cfg['conditions']}
+    narrow = pd.read_parquet(EXP/'events'/f'{names["calyx_PN_KC_contact_block"]}.parquet')
+    allkc = pd.read_parquet(EXP/'events'/f'{names["all_PN_KC_block"]}.parquet')
+    a = np.load(EXP/'states'/f'{names["calyx_PN_KC_contact_block"]}.npz')
+    b = np.load(EXP/'states'/f'{names["all_PN_KC_block"]}.npz')
+    comparisons.append({'odor_index': oi, 'terminal_vs_allKC_events_exact': narrow.equals(allkc),
+        'counts_exact': bool(np.array_equal(a['counts'], b['counts'])),
+        'max_V_difference': float(np.abs(a['final_v'].astype(float)-b['final_v']).max()),
+        'max_g_difference': float(np.abs(a['final_g'].astype(float)-b['final_g']).max())})
+    kc = np.flatnonzero(m.annotation_class.eq('Kenyon_Cell'))
+    late = narrow[(narrow.step >= 5000) & narrow.neuron_idx.isin(kc)]
+    for node, group in late.groupby('neuron_idx'):
+        row = m.iloc[node]
+        remaining.append({'odor_index': oi, 'neuron_idx': int(node), 'body_id': int(row.body_id),
+            'type': str(row.annotation_type), 'late_spikes': len(group),
+            'first_late_spike_ms': float(group.step.min()/10), 'last_spike_ms': float(group.step.max()/10),
+            'source_identity_not_inferred_from_this_count': True})
+pd.DataFrame(remaining).to_csv(EXP/'audit/remaining-late-KCs.csv', index=False)
+pd.DataFrame(comparisons).to_csv(EXP/'audit/narrow-vs-allKC.csv', index=False)
+
+rows = []
+for name, g in trials.groupby('condition', sort=False):
+    row = {'condition': name}
+    for key in ['whole_spikes', 'KC_active', 'KC_spikes', 'KC_late_spikes', 'KC82312_late_spikes', 'VA6_late_spikes', 'wall_seconds']:
+        row[key+'_min'] = float(g[key].min()); row[key+'_max'] = float(g[key].max())
+    rows.append(row)
+pd.DataFrame(rows).to_csv(EXP/'audit/condition-ranges.csv', index=False)
+ca = trials[trials.condition == 'calyx_PN_KC_contact_block']
+wide = trials[trials.condition == 'whole_PN_output_block']
+local = watched[(watched.population == 'ALLN') & watched.trial.str.endswith('calyx_PN_KC_contact_block')]
+result = {'posthoc_summary_not_new_experiment': True,
+    'all_six_CA_block_targetKC_late_zero': bool(ca.KC82312_late_spikes.eq(0).all()),
+    'all_six_CA_block_VA6_late_persists': bool(ca.VA6_late_spikes.gt(0).all()),
+    'all_six_broad_block_KC_and_VA6_late_zero': bool((wide.KC_late_spikes.eq(0) & wide.VA6_late_spikes.eq(0)).all()),
+    'CA_block_active_KC_range': [int(ca.KC_active.min()), int(ca.KC_active.max())],
+    'CA_block_ALLN_watched_late_rate_range_hz': [float(local.late_rate_hz.min()), float(local.late_rate_hz.max())],
+    'CA_vs_allKC_spike_sequence_exact_for_all_odors': bool(all(x['terminal_vs_allKC_events_exact'] for x in comparisons)),
+    'not_a_physiological_APL_gain_estimate': True, 'not_a_memory_or_separability_success': True,
+    'new_candidate': False, 'source_sha256': digest(Path(__file__))}
+save(EXP/'audit/mechanism-interpretation.json', result)
+
+def span(frame, key):
+    lo, hi = frame[key].min(), frame[key].max()
+    return str(int(lo)) if lo == hi else f'{int(lo)}–{int(hi)}'
+ref = trials[trials.condition == 'frozen_reference']
+lines = ['# Phase 4AB 机制解读', '',
+    '正式状态：**COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE**。', '',
+    '这一轮区分了“PN→KC 传入位置”与“维持 PN 放电的上游反馈”。没有修复或批准新的 APL 生理模型，也没有训练。', '',
+    '| 诊断范围 | 活跃 KC（6 个旧气味） | 目标 KC 晚期 spikes | VA6 PN 晚期 spikes |',
+    '|---|---:|---:|---:|']
+labels = {'frozen_reference': '原模型', 'calyx_PN_KC_contact_block': '仅明确 calyx 接触',
+          'all_PN_KC_block': '同批 PN 的全部 KC 输出', 'whole_PN_output_block': '同批 PN 的全部快速输出'}
+for name in cfg['conditions']:
+    g = trials[trials.condition == name]
+    lines.append(f'| {labels[name]} | {span(g,"KC_active")} | {span(g,"KC82312_late_spikes")} | {span(g,"VA6_late_spikes")} |')
+lines += ['', '晚期窗口是 500–1,000 ms。每个气味沿用 seed 131101；总计 24 组诊断、4 次精确重复，不是 5-seed 学习验证。', '',
+    '## 能说明什么', '',
+    f'仅 calyx 接触阻断后，目标 KC82312 的晚期 spikes 范围为 {span(ca,"KC82312_late_spikes")}，VA6 仍为 {span(ca,"VA6_late_spikes")}。',
+    f'同时 KC 总活跃数降为 {span(ca,"KC_active")}，原模型为 {span(ref,"KC_active")}。不能把这种接近静默的结果包装成编码或记忆改善。',
+    '即使两个局部阻断条件的事件序列相同，其电压/g 仍可能不同；逐气味比较见 narrow-vs-allKC.csv。',
+    '宽范围 PN 快速输出阻断影响反馈路径，不等价于局部 calyx 调制；它也没有关闭 PN 胞体或 frozen graded APL 的 PN 输入。', '',
+    '## 仍不能说明什么', '',
+    '完全阻断只是工程极端对照，不是 APL 的实测释放抑制比例。没有估计 receptor、bouton、局部扩散范围或时间常数。',
+    '未使用 held-out 气味，未检验学习、保持、反转或动作输出。不得选取这次“让活动更少”的操作作为正式脑模型。',
+    '剩余 late KC 的 ID/type 已单独保存；其来源不能仅凭残余计数猜测。', '',
+    '## 下一步边界', '',
+    '先继续 upstream feedback / compartment-specific physiology 的证据约束，区分 calyx 信号传递与触角叶持续放电，再确定可检验的局部动力学假设。',
+    '不能靠增加整体抑制、调 eta/threshold、扩大 plastic mask 或让 KC 全静默宣称修复。当前不进入学习、游戏或视觉。', '',
+    '相关原始研究：[Prisco et al., 2021](https://doi.org/10.7554/eLife.74172)、[Amin et al., 2020](https://doi.org/10.7554/eLife.56954)。它们支持研究局部 APL 作用，不直接验证本实验完全阻断幅度。', '',
+    '顶层验收仍为 5/10（50%）；本轮推进的是机制定位与可重复诊断能力。最终完整性状态见 regression/final-integrity.json。']
+with (EXP/'INTERPRETATION.zh.md').open('x', encoding='utf-8') as out:
+    out.write('\n'.join(lines)+'\n')
+print(result)
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/checksums.sha256 b/models/male-cns-lif/terminal-scope-diagnostic-v1/checksums.sha256
new file mode 100644
index 0000000..ff9cc55
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/checksums.sha256
@@ -0,0 +1,11 @@
+451b53b128eb0ad67acb81f060f3676794a68c98637dd2c0eddd137da509fccf  PROTOCOL.md
+2842b5dd94ed30fc01d1a8b8d95e235de78695d3d1c1076402499276fb903261  README.md
+33ba5f323e9ed3343f43a8d64fb7e862c8a4f1118b9b441f4745e26cc14303a8  analyze.py
+e22088d9847504a50c0e684d2cee9420f484ab1ebef9d6057921062d8f785e73  config.yaml
+c8ec2ae6e72d35fedbd42acc6e6b5e7af2634d5b9805dc20e777b172c55d5aa4  diagnostic.py
+be92ce24e63910f67da0238b19e3abb882e1afd317561fccf01734f1b4a56f25  environment.py
+0b2f71365267886933ba5becb52f4123d3d4e95e9c5bc0cf19c9bf0563831625  launch.py
+bc194bb857336908b1c3fe71cc0e7b7fe4152794745bd3443533d47da886f5ec  publish.py
+8f5774496dcceaee1c2793a5308754cbd0864c4a38d507481071d988f9de424d  scope.py
+38a1c6e653ae97e77e5feda3ee8f2f8a3c366755bfbbd57ca1373b9b8f971bbb  test_scope.py
+971136a667367a84cfc50ebc3fa73a749eddb8b8e1ca6931708ba67bfc12f0c1  validate.py
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/config.yaml b/models/male-cns-lif/terminal-scope-diagnostic-v1/config.yaml
new file mode 100644
index 0000000..91609e7
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/config.yaml
@@ -0,0 +1,22 @@
+phase: 4AB
+root: /data/digital-drosophila
+model: models/male-cns-lif/terminal-scope-diagnostic-v1
+experiment: experiments/phase4ab-terminal-scope
+prior_model: models/male-cns-lif/apl-pn-scope-audit-v1
+prior_experiment: experiments/phase4aa-apl-pn-scope
+runtime: models/male-cns-lif/deterministic-runtime-v2
+snapshot: registry/snapshots/bootstrap-20260929
+canonical: datasets/male-cns-v1.0/processed/neuron-only
+event_prior: experiments/phase4z-pn-feedback-audit
+state_prior: experiments/phase4y-dpm-hypothesis
+input_model: models/male-cns-lif/csus-audit-v1
+roi_labels: [CA(L), CA(R)]
+seed: 131101
+odor_indices: [0, 1, 2, 3, 4, 5]
+repeat_odor_index: 0
+late_start_ms: 500
+target_KC: 82312
+watched_VA6: 133666
+conditions: [frozen_reference, calyx_PN_KC_contact_block, all_PN_KC_block, whole_PN_output_block]
+workers: 4
+no_candidate: true
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/diagnostic.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/diagnostic.py
new file mode 100644
index 0000000..58d5546
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/diagnostic.py
@@ -0,0 +1,369 @@
+"""New-path-only Phase 4AB scope diagnostics; never edits frozen scientific files."""
+import argparse
+from datetime import datetime, timezone
+import json
+import os
+from pathlib import Path
+import subprocess
+import sys
+import time
+import urllib.request
+import numpy as np
+import pandas as pd
+import yaml
+from scope import contact_scope, edge_ids_for_pairs, blocked_weights
+
+
+def load_context():
+    cfg = yaml.safe_load(Path(__file__).with_name('config.yaml').read_text())
+    root = Path(cfg['root']); model = root/cfg['model']; exp = root/cfg['experiment']
+    sys.path.insert(0, str(root/cfg['prior_model']))
+    from audit import save, digest, immutable_check, seal
+    return cfg, root, model, exp, save, digest, immutable_check, seal
+
+
+def manifest_check(folder, digest):
+    manifest = folder/'manifest.json'
+    rows = json.loads(manifest.read_text())['files']
+    bad = []
+    for row in rows:
+        path = folder/row['path']
+        if not path.is_file() or path.stat().st_size != row['bytes'] or digest(path) != row['sha256']:
+            bad.append(row['path'])
+    return {'pass': not bad, 'checked': len(rows), 'mismatches': bad,
+            'manifest_sha256': digest(manifest), 'checksums_sha256': digest(folder/'checksums.sha256')}
+
+
+def integrity(cfg, root, digest, immutable_check):
+    result = {'original': immutable_check(root, root/cfg['snapshot'], cfg['workers'])}
+    for key in ('prior_model', 'prior_experiment'):
+        result[key] = manifest_check(root/cfg[key], digest)
+    assert all(x['pass'] for x in result.values()), result
+    return result
+
+
+def queues():
+    out = []
+    for port in (8188, 8189, 8190):
+        with urllib.request.urlopen(f'http://192.168.10.51:{port}/queue', timeout=5) as r:
+            q = json.load(r)
+        out.append({'port': port, 'running': len(q['queue_running']), 'pending': len(q['queue_pending'])})
+    assert all(x['running'] == x['pending'] == 0 for x in out), 'ComfyUI busy: defer, never evict'
+    return out
+
+
+def prepare():
+    cfg, root, model, exp, save, digest, immutable_check, _ = load_context()
+    assert exp.parent == root/'experiments' and model.parent == root/'models/male-cns-lif'
+    if exp.exists() and any(exp.iterdir()): raise RuntimeError('Refusing nonempty experiment')
+    exp.mkdir(exist_ok=True)
+    for d in ('protocol', 'audit', 'masks', 'events', 'states', 'observations', 'requests', 'replay', 'regression', 'performance'):
+        (exp/d).mkdir()
+    save(exp/'protocol/preregistered.json', {'config': cfg, 'before_analysis': True,
+        'timestamp_utc': datetime.now(timezone.utc).isoformat(),
+        'parent_commit': subprocess.check_output(['git', '-C', str(root), 'rev-parse', 'HEAD'], text=True).strip(),
+        'source_hashes': {p.name: digest(p) for p in sorted(model.iterdir()) if p.is_file()}})
+    save(exp/'regression/preflight.json', integrity(cfg, root, digest, immutable_check))
+    can = root/cfg['canonical']; prior = root/cfg['prior_experiment']
+    m = pd.read_parquet(can/'neuron-index/unified-metadata.parquet').sort_values('neuron_idx').reset_index(drop=True)
+    ptr = np.load(can/'gpu/csr-indptr.int64.npy', mmap_mode='r')
+    dst = np.load(can/'gpu/csr-indices.int32.npy', mmap_mode='r')
+    raw = np.load(can/'gpu/csr-weights.int64.npy', mmap_mode='r')
+    assert len(m) == 166700 and len(dst) == 25582938 and int(raw.sum()) == 124177617
+    assert m.body_id.dtype == np.uint64 and np.array_equal(m.neuron_idx, np.arange(len(m)))
+    src = np.repeat(np.arange(len(m), dtype=np.int32), np.diff(ptr))
+    apl = np.flatnonzero(m.annotation_type.eq('APL')); pn = np.flatnonzero(m.annotation_class.eq('ALPN'))
+    kc = np.flatnonzero(m.annotation_class.eq('Kenyon_Cell'))
+    contacts = pd.read_parquet(prior/'localization/APL-incident.parquet')
+    ap = contacts[contacts.source_neuron_idx.isin(apl) & contacts.target_neuron_idx.isin(pn)].copy()
+    pk = pd.read_parquet(prior/'localization/APL-target-PN-to-KC.parquet')
+    assert len(ap) == 4600 and ap.target_neuron_idx.nunique() == 259 and len(pk) == 385229
+    assert pk.source_neuron_idx.isin(pn).all() and pk.target_neuron_idx.isin(kc).all()
+    pairs, allowed, keep = contact_scope(ap, pk, cfg['roi_labels'])
+    ids = edge_ids_for_pairs(pairs, ptr, dst)
+    assert np.array_equal(raw[ids], pairs.raw_partner_count)
+    full_expected = np.flatnonzero(np.isin(src, ap.target_neuron_idx.unique()) & np.isin(dst, kc))
+    assert np.array_equal(np.sort(ids), full_expected), 'Missing whole PN->KC pairs'
+    pairs['edge_id'] = ids
+    pairs['source_body_id'] = m.body_id.to_numpy()[pairs.source_neuron_idx]
+    pairs['target_body_id'] = m.body_id.to_numpy()[pairs.target_neuron_idx]
+    ca = pairs[pairs.blocked_contact_count > 0].sort_values('edge_id').copy()
+    eligible = np.sort(ca.source_neuron_idx.unique()).astype(np.int32)
+    all_pk = np.flatnonzero(np.isin(src, eligible) & np.isin(dst, kc))
+    whole = np.flatnonzero(np.isin(src, eligible))
+    assert set(ca.edge_id).issubset(all_pk) and set(all_pk).issubset(whole)
+    assert not np.any(np.isin(src[ca.edge_id], apl)) and not np.any(ca.retained_contact_count < 0)
+    for name, eids, count in [
+        ('calyx_PN_KC_contact_block', ca.edge_id.to_numpy(np.int64), ca.blocked_contact_count.to_numpy(np.int64)),
+        ('all_PN_KC_block', all_pk, raw[all_pk]), ('whole_PN_output_block', whole, raw[whole])]:
+        frame = pd.DataFrame({'edge_id': eids, 'source_neuron_idx': src[eids], 'target_neuron_idx': dst[eids],
+                              'raw_synapse_count': raw[eids], 'blocked_contact_count': count})
+        frame['source_body_id'] = m.body_id.to_numpy()[src[eids]]
+        frame['target_body_id'] = m.body_id.to_numpy()[dst[eids]]
+        frame.to_parquet(exp/'masks'/f'{name}.parquet', index=False)
+    pairs.to_parquet(exp/'audit/all-PN-KC-contact-partitions.parquet', index=False)
+    allowed.to_parquet(exp/'audit/observed-APL-PN-ROI-pairs.parquet', index=False)
+    pns = m.iloc[np.sort(ap.target_neuron_idx.unique().astype(np.int32))].copy()
+    pns['eligible_for_diagnostic'] = pns.neuron_idx.isin(eligible)
+    pns.to_parquet(exp/'audit/all-259-APL-target-PNs.parquet', index=False)
+    roi = pk.assign(in_scope=keep).groupby(['primary_post', 'in_scope'], observed=True, dropna=False).size().reset_index(name='contacts')
+    roi.to_csv(exp/'audit/ROI-partition.csv', index=False)
+    summary = {'neurons': len(m), 'edges': len(dst), 'raw_contacts': int(raw.sum()), 'APL_target_PNs': len(pns),
+        'eligible_PNs': len(eligible), 'ineligible_PNs': int((~pns.eligible_for_diagnostic).sum()),
+        'calyx_mask_edges': len(ca), 'calyx_blocked_contacts': int(ca.blocked_contact_count.sum()),
+        'calyx_affected_KCs': int(ca.target_neuron_idx.nunique()), 'mixed_CA_nonCA_edges': int((ca.retained_contact_count > 0).sum()),
+        'calyx_other_contacts_retained_on_affected_edges': int(ca.retained_contact_count.sum()),
+        'all_PN_KC_edges': len(all_pk), 'all_PN_KC_contacts': int(raw[all_pk].sum()),
+        'whole_PN_edges': len(whole), 'whole_PN_contacts': int(raw[whole].sum()),
+        'unknown_ROI_contacts_in_original_PN_KC': int(pk.primary_post.eq('CentralBrain-unspecified').sum()),
+        'unknown_contacts_relabelled': 0, 'same_bouton_confirmed': False, 'biophysical_coefficient_known': False}
+    save(exp/'audit/scope-summary.json', summary)
+    inputs = [prior/'localization/APL-incident.parquet', prior/'localization/APL-target-PN-to-KC.parquet',
+              prior/'external-resources/synaptic-partners/download-verification.json',
+              can/'neuron-index/unified-metadata.parquet'] + list((can/'gpu').glob('csr-*.npy'))
+    save(exp/'protocol/input-hashes.json', [{'path': str(p.relative_to(root)), 'sha256': digest(p), 'bytes': p.stat().st_size} for p in inputs])
+    save(exp/'protocol/mask-hashes.json', {p.name: digest(p) for p in sorted((exp/'masks').iterdir())})
+    print(json.dumps(summary), flush=True)
+
+
+def run():
+    cfg, root, model, exp, save, digest, _, _ = load_context()
+    pre = json.loads((exp/'protocol/preregistered.json').read_text())
+    assert all(digest(model/n) == h for n, h in pre['source_hashes'].items()), 'Source changed since preregistration'
+    assert not (exp/'regression/run-start.json').exists(), 'Refusing rerun into existing outputs'
+    assert all(digest(exp/'masks'/n) == h for n, h in json.loads((exp/'protocol/mask-hashes.json').read_text()).items())
+    q = queues(); runtime = root/cfg['runtime']
+    pc = yaml.safe_load((runtime/'phase4p.yaml').read_text())
+    os.environ['CUDA_VISIBLE_DEVICES'] = pc['device']['visible_gpu_uuid']
+    os.environ['CUDA_HOME'] = '/usr/local/cuda'; os.environ['TORCH_CUDA_ARCH_LIST'] = '8.9'; os.environ['MAX_JOBS'] = '2'
+    os.environ['PATH'] = str(root/'models/male-cns-lif/.venv/bin') + ':/usr/local/cuda/bin:' + os.environ['PATH']
+    sys.path.insert(0, str(root/'models/male-cns-lif')); sys.path.insert(0, str(runtime))
+    import torch
+    import phase4p, phase4v, phase4z
+    from phase4p_revalidate import DeterministicAPLSim, door_inputs, make_drive
+    from phase4r import arrhash
+    free, total = torch.cuda.mem_get_info(); assert free > 2*1024**3
+    save(exp/'regression/run-start.json', {'ComfyUI_queues': q, 'free_VRAM': free, 'total_VRAM': total,
+        'device': torch.cuda.get_device_name(), 'timestamp_utc': datetime.now(timezone.utc).isoformat()})
+    start = time.perf_counter(); torch.cuda.reset_peak_memory_stats()
+    rt = phase4p.CanonicalRuntime(pc, runtime, exp)
+    sim = DeterministicAPLSim(rt); sim.install(None)
+    assert len(sim.identity) == 14232 and sim.n == 166700 and len(rt.raw_np) == 25582938 and rt.delay_steps == 18
+    frozen = rt.weights.cpu().numpy().copy(); anatomical_hash = arrhash(rt.raw_np)
+    original_install = sim.install
+    apl_input_hash = arrhash(sim.input_gpu.cpu().numpy(), sim.output_gpu.cpu().numpy())
+    base_hash = arrhash(sim.base.cpu().numpy())
+    masks = {n: pd.read_parquet(exp/'masks'/f'{n}.parquet') for n in cfg['conditions'][1:]}
+    updates = {}
+    for name, mask in masks.items():
+        ids = mask.edge_id.to_numpy(np.int64)
+        values = blocked_weights(frozen[ids], rt.raw_np[ids], mask.blocked_contact_count.to_numpy(np.int64))
+        assert np.all(np.abs(values) <= np.abs(frozen[ids]))
+        updates[name] = (torch.as_tensor(ids, device=rt.device), torch.as_tensor(values, device=rt.device))
+        mask.assign(frozen_effective_weight=frozen[ids], diagnostic_effective_weight=values,
+                    diagnostic_delta=(values.astype(float)-frozen[ids])).to_parquet(exp/'audit'/f'{name}-effective-overlay.parquet', index=False)
+    condition = 'frozen_reference'
+    def install(E):
+        assert E is None, 'No learning allowed'
+        original_install(None)
+        if condition != 'frozen_reference':
+            ix, values = updates[condition]; rt.weights[ix] = values
+    sim.install = install
+    vc = yaml.safe_load((root/cfg['input_model']/'phase4v.yaml').read_text())
+    assert vc['short_duration_ms'] == 120 and vc['observation_duration_ms'] == 1000
+    oldwatch = json.loads((root/cfg['event_prior']/'protocol/watched.json').read_text())
+    watch = np.asarray(oldwatch['all_watched'], np.int32)
+    targetkc = np.unique(sim.identity.loc[sim.identity.compartment.eq(vc['target_compartment']), 'source_neuron_idx'].to_numpy(np.int32))
+    oc, panel, vectors, selection, mapping = door_inputs(); panel = panel[panel.split == 'calibration'].reset_index(drop=True)
+    assert len(panel) == 6
+    save(exp/'protocol/calibration-panel.json', panel.to_dict('records'))
+    codes = phase4z.role_codes(sim.meta)
+    trials, regress, request_summary, populations, watched, hashes = [], [], [], [], [], []
+    baseline0 = None
+    try:
+        for oi in cfg['odor_indices']:
+            odor = panel.iloc[oi]
+            targets, rates = make_drive(oc, panel, vectors, selection, mapping, odor.odor_id, 'physiological')
+            forcing_seed = vc['seed_namespace'] + oi*vc['odor_seed_offset'] + cfg['seed']
+            force = phase4v.forcing(sim, targets, rates, forcing_seed, vc, 'offset'); ff = force.cpu().numpy()
+            hashes.append({'odor_index': oi, 'seed': forcing_seed, 'forcing': arrhash(ff), 'targets_rates': arrhash(targets, rates)})
+            np.savez_compressed(exp/'requests'/f'{oi}-scheduled.npz', forcing=ff, targets=targets, rates=rates)
+            requests0 = None
+            for condition in cfg['conditions']:
+                queues(); name = f'{oi}-{cfg["seed"]}-{condition}'
+                obs = phase4z.Observer(rt, watch, ff, targets); obs.attach()
+                try: result = phase4v.observed(sim, targets, force, targetkc, vc)
+                finally: obs.detach()
+                assert result['finite'] and np.isfinite(result['final_v']).all() and np.isfinite(result['final_g']).all()
+                ev = obs.events(); states = np.asarray(obs.states); req = pd.DataFrame(obs.request_rows)
+                assert len(req) == int(ff.sum())
+                assert np.array_equal(np.bincount(ev.neuron_idx, minlength=sim.n), result['counts'])
+                expected_weights = frozen.copy()
+                if condition != 'frozen_reference':
+                    ids = masks[condition].edge_id.to_numpy(np.int64)
+                    expected_weights[ids] = updates[condition][1].cpu().numpy()
+                assert np.array_equal(rt.weights.cpu().numpy(), expected_weights), 'Undeclared weight change'
+                row = {'trial': name, 'declared_weight_scope_exact': True}
+                if condition == 'frozen_reference':
+                    old_ev = pd.read_parquet(root/cfg['event_prior']/'events'/f'{name}-whole-brain.parquet')
+                    old_state = np.load(root/cfg['event_prior']/'states'/f'{name}-watched.npz')
+                    old_final = np.load(root/cfg['state_prior']/'states'/f'{name}.npz')
+                    row['prior_exact'] = {'events': ev.equals(old_ev), 'watched_states': np.array_equal(states, old_state['state']),
+                        **{key: bool(np.array_equal(result[key], old_final[key])) for key in ('counts', 'final_v', 'final_g', 'trace')}}
+                    assert all(row['prior_exact'].values()), row
+                    requests0 = req
+                    if oi == cfg['repeat_odor_index']: baseline0 = ev, states, req, result
+                paired = requests0.merge(req, on=['step', 'neuron_idx'], suffixes=('_ref', '_diagnostic'), validate='one_to_one', how='outer', indicator=True)
+                assert paired['_merge'].eq('both').all()
+                request_summary.append({'trial': name, 'scheduled': len(req), 'identical_request_keys': True,
+                    'accepted': int(req.status.eq('accepted').sum()), 'blocked': int(req.status.eq('blocked').sum()), 'preexisting': int(req.status.eq('preexisting').sum()),
+                    'status_differences_vs_reference': int((paired.status_ref != paired.status_diagnostic).sum()),
+                    'actual_output_differences_vs_reference': int((paired.actual_output_spike_ref != paired.actual_output_spike_diagnostic).sum())})
+                late = ev[ev.step >= round(cfg['late_start_ms']/rt.dt)]
+                period_count = np.bincount(late.neuron_idx, minlength=sim.n)
+                for code in np.unique(codes):
+                    nodes = np.flatnonzero(codes == code)
+                    populations.append({'trial': name, 'population': str(code), 'neurons': len(nodes), 'active': int((result['counts'][nodes] > 0).sum()),
+                        'spikes': int(result['counts'][nodes].sum()), 'late_spikes': int(period_count[nodes].sum())})
+                for node in watch:
+                    watched.append({'trial': name, 'neuron_idx': int(node), 'body_id': int(sim.meta.iloc[node].body_id),
+                        'type': str(sim.meta.iloc[node].annotation_type), 'population': str(codes[node]),
+                        'spikes': int(result['counts'][node]), 'late_spikes': int(period_count[node]),
+                        'late_rate_hz': float(period_count[node]/((1000-cfg['late_start_ms'])/1000))})
+                trials.append({'trial': name, 'odor_index': oi, 'odor_name': str(odor.odor_name), 'seed': cfg['seed'], 'condition': condition,
+                    'whole_spikes': len(ev), 'KC_active': int(np.count_nonzero(result['counts'][sim.kc])),
+                    'KC_active_fraction': float(np.count_nonzero(result['counts'][sim.kc])/len(sim.kc)),
+                    'KC_spikes': int(result['counts'][sim.kc].sum()), 'KC_late_spikes': int(period_count[sim.kc].sum()),
+                    'KC82312_late_spikes': int(period_count[cfg['target_KC']]), 'VA6_late_spikes': int(period_count[cfg['watched_VA6']]),
+                    'finite': True, 'wall_seconds': result['wall_seconds'], 'biological_ms': 1000})
+                ev.to_parquet(exp/'events'/f'{name}.parquet', index=False)
+                req.to_parquet(exp/'requests'/f'{name}.parquet', index=False)
+                pd.DataFrame(result['samples']).to_parquet(exp/'observations'/f'{name}.parquet', index=False)
+                np.savez_compressed(exp/'states'/f'{name}.npz', counts=result['counts'], final_v=result['final_v'], final_g=result['final_g'], trace=result['trace'])
+                np.savez_compressed(exp/'states'/f'{name}-watched.npz', state=states, watch=watch)
+                if oi == cfg['repeat_odor_index']:
+                    queues(); again = phase4z.Observer(rt, watch, ff, targets); again.attach()
+                    try: repeat = phase4v.observed(sim, targets, force, targetkc, vc)
+                    finally: again.detach()
+                    row['repeat_exact'] = {'events': ev.equals(again.events()), 'states': np.array_equal(states, again.states),
+                        'requests': req.equals(pd.DataFrame(again.request_rows)),
+                        **{key: bool(np.array_equal(result[key], repeat[key])) for key in ('counts', 'final_v', 'final_g', 'trace')}}
+                    assert all(row['repeat_exact'].values()), row
+                regress.append(row); save(exp/'regression'/f'{name}.json', row)
+                print(json.dumps(trials[-1]), flush=True)
+        # Fixed-event replay is an independent direct-operator check, not the dynamic whole-brain result.
+        replay_check(cfg, exp, sim, masks, frozen, baseline0, watch, phase4z, save)
+    finally:
+        sim.install = original_install; original_install(None)
+    assert np.array_equal(rt.weights.cpu().numpy(), frozen)
+    assert arrhash(rt.raw_np) == anatomical_hash and arrhash(sim.base.cpu().numpy()) == base_hash
+    assert arrhash(sim.input_gpu.cpu().numpy(), sim.output_gpu.cpu().numpy()) == apl_input_hash
+    save(exp/'regression/restored.json', {'base': True, 'raw': True, 'APL_matrices': True, 'frozen_effective_weights': True})
+    for name, rows in [('trials', trials), ('request-comparison', request_summary), ('population-counts', populations), ('watched-counts', watched)]:
+        pd.DataFrame(rows).to_csv(exp/'audit'/f'{name}.csv', index=False)
+    save(exp/'protocol/forcing-hashes.json', hashes)
+    # Separate reference trials do not include the graded APL overlay, exactly as archived.
+    rt.weights.copy_(sim.base)
+    reference = []
+    for spec in pc['reference_trials']:
+        queues(); ref = root/'experiments/phase4p-deterministic-runtime/phase4c-v2/reference'/spec['name']
+        ev = pd.read_parquet(ref/'spike-events.parquet')
+        expected = {'step': ev.step.to_numpy(), 'neuron_idx': ev.neuron_idx.to_numpy(),
+            'counts': np.load(ref/'per-neuron-spike-counts.int32.npy'), 'v': np.load(ref/'final-voltage.float32.npy'), 'g': np.load(ref/'final-g.float32.npy')}
+        r = rt.run(np.flatnonzero(rt.pops[spec['population']]), spec['rate_hz'], spec['seed'], spec['duration_ms'])
+        eq = {key: bool(np.array_equal(r[key], value)) for key, value in expected.items()}
+        assert all(eq.values()), eq
+        reference.append({'trial': spec['name'], 'exact': eq, 'wall_seconds': r['metrics']['wall_seconds']})
+    original_install(None)
+    save(exp/'regression/five-frozen-trials.json', {'pass': True, 'trials': reference, 'original_v1_preserved': True, 'oracle': 'frozen deterministic-v2'})
+    save(exp/'performance/summary.json', {'wall_seconds_including_build': time.perf_counter()-start,
+        'peak_VRAM_bytes': int(torch.cuda.max_memory_allocated()), 'device': torch.cuda.get_device_name(),
+        'diagnostic_overhead_included': True, 'not_runtime_benchmark': True, 'ComfyUI_models_unloaded': False})
+    save(exp/'audit/run-complete.json', {'trials': len(trials), 'exact_repeat_trials': 4, 'old_trial_reproductions': 6,
+        'frozen_reference_trials': 5, 'all_finite': True, 'candidate': False, 'training': False})
+
+
+def replay_check(cfg, exp, sim, masks, frozen, baseline, watch, phase4z, save):
+    ev, state, req, result = baseline; rt = sim.rt; T = len(state)
+    ids = np.flatnonzero(np.isin(rt.indices_np, watch))
+    edges = pd.DataFrame({'edge_id': ids, 'source_neuron_idx': sim.sources[ids], 'target_neuron_idx': rt.indices_np[ids], 'weight': frozen[ids]})
+    arrivals = ev.merge(edges, left_on='neuron_idx', right_on='source_neuron_idx')
+    arrivals['arrival_step'] = arrivals.step + rt.delay_steps
+    arrivals = arrivals[arrivals.arrival_step < T].sort_values(['target_neuron_idx', 'arrival_step', 'edge_id'], kind='stable')
+    rows = []
+    for wi, node in enumerate(watch):
+        subset = arrivals[arrivals.target_neuron_idx == node].copy()
+        after = np.r_[state[1:, 1, wi], result['final_g'][node]]
+        overlay = after.astype(float)-state[:, 5, wi].astype(float)
+        request = np.zeros(T, bool); rq = req[req.neuron_idx == node]; request[rq.step.to_numpy(np.int32)] = True
+        base_arrival = state[:, 3, wi]
+        for name in cfg['conditions']:
+            weights = subset.weight.to_numpy(np.float32).copy()
+            if name != 'frozen_reference':
+                frame = masks[name]; eids = frame.edge_id.to_numpy(np.int64)
+                values = blocked_weights(frozen[eids], rt.raw_np[eids], frame.blocked_contact_count.to_numpy(np.int64))
+                lookup = pd.Series(values, index=eids)
+                mapped = subset.edge_id.map(lookup); keep = mapped.notna().to_numpy()
+                weights[keep] = mapped[keep].to_numpy(np.float32)
+            subset['diagnostic_weight'] = weights
+            a = np.zeros(T, np.float32)
+            for step, group in subset.groupby('arrival_step', sort=False):
+                a[int(step)] = np.cumsum(group.diagnostic_weight.to_numpy(np.float32), dtype=np.float32)[-1]
+            rr = phase4z.replay(a, overlay, request, rt)
+            if name == 'frozen_reference':
+                exact = np.array_equal(a, base_arrival) and np.array_equal(rr[0], ev.loc[ev.neuron_idx == node, 'step']) and np.array_equal(rr[1], state[:, 4:7, wi])
+                assert exact and rr[2] == result['final_v'][node] and rr[3] == result['final_g'][node]
+            unchanged = np.array_equal(a, base_arrival)
+            if name == 'calyx_PN_KC_contact_block' and node not in sim.kc: assert unchanged
+            rows.append({'condition': name, 'neuron_idx': int(node), 'arrival_unchanged': bool(unchanged),
+                'arrival_L1_difference': float(np.abs(a.astype(float)-base_arrival).sum()),
+                'conditional_late_spikes': int((rr[0] >= round(cfg['late_start_ms']/rt.dt)).sum()),
+                'all_other_recorded_events_and_APL_fixed': True, 'whole_brain_causality_claim': False})
+    pd.DataFrame(rows).to_csv(exp/'replay/fixed-event-scope.csv', index=False)
+    save(exp/'regression/fixed-event-replay.json', {'baseline_exact_neurons': len(watch), 'terminal_nonKC_arrivals_exact': True})
+
+
+def finalize():
+    cfg, root, model, exp, save, digest, immutable_check, seal = load_context()
+    assert (exp/'audit/run-complete.json').exists()
+    pre = json.loads((exp/'protocol/preregistered.json').read_text())
+    assert all(digest(model/n) == h for n, h in pre['source_hashes'].items())
+    post = integrity(cfg, root, digest, immutable_check)
+    assert post == json.loads((exp/'regression/preflight.json').read_text())
+    save(exp/'regression/final-integrity.json', post)
+    q = queues(); save(exp/'audit/final-service-health.json', {'ComfyUI_queues': q, 'services_stopped': False})
+    trials = pd.read_csv(exp/'audit/trials.csv'); scope = json.loads((exp/'audit/scope-summary.json').read_text())
+    requests = pd.read_csv(exp/'audit/request-comparison.csv')
+    lines = ['# Phase 4AB — calyx contact-scope diagnostic', '',
+        'Status: COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE.',
+        'Diagnostic interventions only; no calibrated biological inhibition, no training, no parameter winner.', '',
+        f"Eligible PNs: {scope['eligible_PNs']}/259. CA mask: {scope['calyx_mask_edges']} edges / {scope['calyx_blocked_contacts']} contacts.",
+        f"Affected KCs: {scope['calyx_affected_KCs']}. Mixed-ROI affected edges: {scope['mixed_CA_nonCA_edges']}; retained other contacts: {scope['calyx_other_contacts_retained_on_affected_edges']}.",
+        f"Broader PN→KC control: {scope['all_PN_KC_edges']} edges / {scope['all_PN_KC_contacts']} contacts. All-fast-PN-output control: {scope['whole_PN_edges']} edges / {scope['whole_PN_contacts']} contacts.", '',
+        '| Odor | Condition | Active KC | KC late spikes | KC82312 late | VA6 late |',
+        '|---|---|---:|---:|---:|---:|']
+    for r in trials.itertuples():
+        lines.append(f'| {r.odor_name} | {r.condition} | {r.KC_active} | {r.KC_late_spikes} | {r.KC82312_late_spikes} | {r.VA6_late_spikes} |')
+    lines += ['', 'Late means 500–1,000 ms; 120 ms old calibration odor input; one seed, six old odors. No held-out generalization claim.',
+        f"Identical scheduled requests across conditions. Delivered request-associated output differences versus reference: {int(requests.actual_output_differences_vs_reference.sum())} (summed over all comparisons). See per-trial table; this is state/refractory feedback, not a changed RNG.", '',
+        '## Interpretation limits', '',
+        'CA selection uses exact primary_post labels plus matched APL→PN/ROI metadata, not bouton identities or inferred receptors. Unknown ROIs are not reclassified.',
+        'Whole-PN control removes fast output, not somatic spikes or the frozen graded APL input. It is not a complete PN knockout.',
+        'Reduction/silencing is not restored information or associative memory. No condition becomes a formal model. Fixed-event replay freezes other recorded events/APL; dynamic trials allow natural recurrent feedback.',
+        'Local-inhibition motivation: [Prisco et al.](https://doi.org/10.7554/eLife.74172), [Amin et al.](https://doi.org/10.7554/eLife.56954). These sources do not establish the complete-block operator as physiological.', '',
+        '## Verification', '',
+        'Six original trials reproduced exactly (whole spike events, watched state and final counts/V/g). Four first-odor repeats exact. Five deterministic-v2 frozen reference trials exact. Finite state throughout.',
+        'Original 230,239 files and both Phase 4AA manifests rechecked before/after. Base CSR/count/sign, frozen LIF/APL, eligibility-v2 and 14,232 plastic mask preserved.',
+        'Timing includes diagnostic CPU/GPU observation overhead and is not a runtime speed benchmark. ComfyUI was not stopped or unloaded.',
+        'Top-level acceptance gates remain 5/10 (50%); anatomical diagnosis is not evidence of learning success.']
+    (exp/'REPORT.md').write_text('\n'.join(lines)+'\n', encoding='utf-8')
+    save(exp/'audit/final-summary.json', {'status': 'COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE',
+        'integrity_pass': True, 'reference_pass': True, 'scope': scope, 'candidate': False, 'training': False,
+        'preserved_acceptance_gates': '5/10', 'frozen_baseline_modified': False})
+    for folder in (model, exp):
+        count = seal(folder); assert manifest_check(folder, digest)['pass']; print('SEALED', folder, count, flush=True)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(); parser.add_argument('task', choices=['prepare', 'run', 'finalize'])
+    globals()[parser.parse_args().task]()
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/environment.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/environment.py
new file mode 100644
index 0000000..da55117
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/environment.py
@@ -0,0 +1,22 @@
+"""Record executable/package/hardware versions without installing anything."""
+import importlib.metadata
+import platform
+from pathlib import Path
+import subprocess
+import sys
+
+MODEL = Path('/data/digital-drosophila/models/male-cns-lif/terminal-scope-diagnostic-v1')
+EXP = Path('/data/digital-drosophila/experiments/phase4ab-terminal-scope')
+sys.path.insert(0, str(MODEL))
+import diagnostic
+_, _, _, _, save, digest, _, _ = diagnostic.load_context()
+packages = {}
+for name in ('torch', 'numpy', 'pandas', 'pyarrow', 'scipy', 'PyYAML', 'ninja'):
+    try: packages[name] = importlib.metadata.version(name)
+    except importlib.metadata.PackageNotFoundError: packages[name] = None
+gpu = subprocess.check_output(['nvidia-smi', '--query-gpu=index,name,uuid,driver_version,memory.total', '--format=csv,noheader'], text=True)
+nvcc = subprocess.check_output(['/usr/local/cuda/bin/nvcc', '--version'], text=True)
+save(EXP/'protocol/environment.json', {'python': sys.version, 'executable': sys.executable,
+    'platform': platform.platform(), 'packages': packages, 'GPU_inventory': gpu, 'nvcc': nvcc,
+    'installed_or_upgraded_packages': False, 'source_sha256': digest(Path(__file__))})
+print(packages)
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/launch.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/launch.py
new file mode 100644
index 0000000..e6e3dce
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/launch.py
@@ -0,0 +1,32 @@
+"""Explicit frozen module paths; repairs launch only, never scientific source."""
+import os
+from pathlib import Path
+import sys
+
+ROOT = Path('/data/digital-drosophila')
+MODEL = ROOT/'models/male-cns-lif/terminal-scope-diagnostic-v1'
+EXP = ROOT/'experiments/phase4ab-terminal-scope'
+PARENT = ROOT/'models/male-cns-lif'
+names = ['deterministic-runtime-v2', 'credit-v3', 'timing-audit-v1', 'timing-credit-v1',
+         'timing-stability-v1', 'odor-timing-generalization-v1', 'csus-audit-v1',
+         'late-kc-audit-v1', 'dpm-hypothesis-v1', 'pn-feedback-audit-v1', 'transmitter-audit-v1']
+sys.path[:0] = [str(MODEL), str(PARENT)] + [str(PARENT/n) for n in names]
+os.environ['PYTHONDONTWRITEBYTECODE'] = '1'
+import diagnostic
+_, _, _, _, save, digest, _, _ = diagnostic.load_context()
+save(EXP/'protocol/launch-addendum.json', {
+    'previous_attempt': 'ModuleNotFoundError: phase4v before run-start and before simulation',
+    'only_fix': 'Add explicit existing frozen dependency directories to module lookup',
+    'model_source_edited': False, 'protocol_parameters_changed': False,
+    'launcher_sha256': digest(Path(__file__)), 'module_paths': [str(PARENT/n) for n in names]})
+try:
+    diagnostic.run()
+finally:
+    loaded = {}
+    for name, mod in list(sys.modules.items()):
+        filename = getattr(mod, '__file__', None)
+        if filename:
+            p = Path(filename)
+            if p.is_file() and p.is_relative_to(PARENT) and '.venv' not in p.parts:
+                loaded[name] = {'path': str(p.relative_to(ROOT)), 'sha256': digest(p)}
+    save(EXP/'protocol/imported-code-hashes.json', loaded)
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/manifest.json b/models/male-cns-lif/terminal-scope-diagnostic-v1/manifest.json
new file mode 100644
index 0000000..f55a1be
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/manifest.json
@@ -0,0 +1,60 @@
+{
+  "created_utc": "2026-09-29T16:26:06.650270+00:00",
+  "files": [
+    {
+      "bytes": 4956,
+      "path": "PROTOCOL.md",
+      "sha256": "451b53b128eb0ad67acb81f060f3676794a68c98637dd2c0eddd137da509fccf"
+    },
+    {
+      "bytes": 2083,
+      "path": "README.md",
+      "sha256": "2842b5dd94ed30fc01d1a8b8d95e235de78695d3d1c1076402499276fb903261"
+    },
+    {
+      "bytes": 6922,
+      "path": "analyze.py",
+      "sha256": "33ba5f323e9ed3343f43a8d64fb7e862c8a4f1118b9b441f4745e26cc14303a8"
+    },
+    {
+      "bytes": 835,
+      "path": "config.yaml",
+      "sha256": "e22088d9847504a50c0e684d2cee9420f484ab1ebef9d6057921062d8f785e73"
+    },
+    {
+      "bytes": 28229,
+      "path": "diagnostic.py",
+      "sha256": "c8ec2ae6e72d35fedbd42acc6e6b5e7af2634d5b9805dc20e777b172c55d5aa4"
+    },
+    {
+      "bytes": 1193,
+      "path": "environment.py",
+      "sha256": "be92ce24e63910f67da0238b19e3abb882e1afd317561fccf01734f1b4a56f25"
+    },
+    {
+      "bytes": 1608,
+      "path": "launch.py",
+      "sha256": "0b2f71365267886933ba5becb52f4123d3d4e95e9c5bc0cf19c9bf0563831625"
+    },
+    {
+      "bytes": 1644,
+      "path": "publish.py",
+      "sha256": "bc194bb857336908b1c3fe71cc0e7b7fe4152794745bd3443533d47da886f5ec"
+    },
+    {
+      "bytes": 2797,
+      "path": "scope.py",
+      "sha256": "8f5774496dcceaee1c2793a5308754cbd0864c4a38d507481071d988f9de424d"
+    },
+    {
+      "bytes": 2615,
+      "path": "test_scope.py",
+      "sha256": "38a1c6e653ae97e77e5feda3ee8f2f8a3c366755bfbbd57ca1373b9b8f971bbb"
+    },
+    {
+      "bytes": 2032,
+      "path": "validate.py",
+      "sha256": "971136a667367a84cfc50ebc3fa73a749eddb8b8e1ca6931708ba67bfc12f0c1"
+    }
+  ]
+}
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/publish.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/publish.py
new file mode 100644
index 0000000..3dea870
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/publish.py
@@ -0,0 +1,29 @@
+"""Copy only new small sealed evidence into Git; never copy bulk datasets."""
+import json
+from pathlib import Path
+import shutil
+import sys
+
+ROOT = Path('/data/digital-drosophila'); MODEL = ROOT/'models/male-cns-lif/terminal-scope-diagnostic-v1'
+EXP = ROOT/'experiments/phase4ab-terminal-scope'
+sys.path.insert(0, str(MODEL))
+import diagnostic
+_, _, _, _, save, digest, _, _ = diagnostic.load_context()
+for folder in (MODEL, EXP):
+    assert diagnostic.manifest_check(folder, digest)['pass']
+registry = ROOT/'registry/phase4ab-terminal-scope'; registry.mkdir(exist_ok=False)
+records = []
+for p in sorted(EXP.rglob('*')):
+    if not p.is_file() or p.suffix not in ('.json', '.csv', '.md', '.sha256') or p.stat().st_size > 4*1024**2:
+        continue
+    dst = registry/'evidence'/p.relative_to(EXP); dst.parent.mkdir(parents=True, exist_ok=True)
+    with p.open('rb') as src, dst.open('xb') as out: shutil.copyfileobj(src, out)
+    assert digest(p) == digest(dst)
+    records.append({'source': str(p.relative_to(ROOT)), 'copy': str(dst.relative_to(registry)),
+                    'sha256': digest(p), 'bytes': p.stat().st_size})
+save(registry/'evidence-index.json', records)
+save(registry/'seal-verification.json', {str(p.relative_to(ROOT)): diagnostic.manifest_check(p, digest) for p in (MODEL, EXP)})
+for source, dest in [('INTERPRETATION.zh.md', 'phase4ab-terminal-scope.md'), ('REPORT.md', 'phase4ab-technical-results.md')]:
+    target = ROOT/'docs/progress'/dest
+    with (EXP/source).open('rb') as src, target.open('xb') as out: shutil.copyfileobj(src, out)
+print('Published', len(records), 'small evidence copies; no data copied to Git')
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/scope.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/scope.py
new file mode 100644
index 0000000..19fe393
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/scope.py
@@ -0,0 +1,53 @@
+"""Pure CPU contact accounting and immutable diagnostic weight operations."""
+import numpy as np
+import pandas as pd
+
+
+def contact_scope(apl_pn, pn_kc, rois):
+    """Only exact, observed PN+postsynaptic-ROI pairs; no side/name inference."""
+    required = {'source_neuron_idx', 'target_neuron_idx', 'primary_post'}
+    if not required.issubset(apl_pn) or not required.issubset(pn_kc):
+        raise ValueError('Actual schema lacks required identifiers/primary_post')
+    permitted = apl_pn.loc[apl_pn.primary_post.isin(rois),
+                           ['target_neuron_idx', 'primary_post']].drop_duplicates()
+    permitted = permitted.rename(columns={'target_neuron_idx': 'source_neuron_idx'})
+    keys = pd.MultiIndex.from_frame(permitted.astype({'primary_post': 'string'}))
+    observed = pd.MultiIndex.from_frame(pn_kc[['source_neuron_idx', 'primary_post']]
+                                        .astype({'primary_post': 'string'}))
+    keep = observed.isin(keys)
+    pairs = ['source_neuron_idx', 'target_neuron_idx']
+    total = pn_kc.groupby(pairs, observed=True).size().rename('raw_partner_count')
+    ca = pn_kc.loc[keep].groupby(pairs, observed=True).size().rename('blocked_contact_count')
+    frame = total.to_frame().join(ca).fillna(0).reset_index()
+    for key in pairs + ['raw_partner_count', 'blocked_contact_count']:
+        frame[key] = frame[key].astype(np.int64)
+    frame['retained_contact_count'] = frame.raw_partner_count - frame.blocked_contact_count
+    assert (frame.retained_contact_count >= 0).all()
+    return frame, permitted, keep
+
+
+def edge_ids_for_pairs(frame, ptr, dst):
+    out = []
+    for s, t in frame[['source_neuron_idx', 'target_neuron_idx']].itertuples(index=False, name=None):
+        ids = np.arange(ptr[s], ptr[s + 1], dtype=np.int64)
+        found = ids[dst[ids] == t]
+        if len(found) != 1:
+            raise ValueError(f'Expected exactly one existing CSR edge for {s}->{t}')
+        out.append(found[0])
+    return np.asarray(out, np.int64)
+
+
+def blocked_weights(base, raw, contacts):
+    base = np.asarray(base)
+    raw = np.asarray(raw)
+    contacts = np.asarray(contacts)
+    if base.dtype != np.float32 or raw.dtype != np.int64 or contacts.dtype != np.int64:
+        raise TypeError('Expected float32 effective weight and int64 anatomical counts')
+    if base.shape != raw.shape or raw.shape != contacts.shape:
+        raise ValueError('Shape mismatch')
+    if not np.isfinite(base).all() or np.any(raw <= 0) or np.any(contacts < 0) or np.any(contacts > raw):
+        raise ValueError('Invalid contact partition or weights')
+    out = base.copy()
+    m = contacts > 0  # No-op copies original bits; no rounding at strength zero.
+    out[m] = (base[m].astype(np.float64) * (raw[m] - contacts[m]) / raw[m]).astype(np.float32)
+    return out
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/test_scope.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/test_scope.py
new file mode 100644
index 0000000..3825b3a
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/test_scope.py
@@ -0,0 +1,52 @@
+import unittest
+import numpy as np
+import pandas as pd
+from scope import contact_scope, edge_ids_for_pairs, blocked_weights
+
+
+class ScopeTests(unittest.TestCase):
+    def test_roi_and_side_not_guessed(self):
+        apl = pd.DataFrame({'source_neuron_idx': [0, 0, 1], 'target_neuron_idx': [3, 3, 4],
+                            'primary_post': ['CA(R)', 'CentralBrain-unspecified', 'CA(L)']})
+        pn = pd.DataFrame({'source_neuron_idx': [3, 3, 3, 4, 4], 'target_neuron_idx': [5]*5,
+                           'primary_post': ['CA(R)', 'CA(L)', None, 'CA(R)', 'CA(L)']})
+        pairs, allowed, keep = contact_scope(apl, pn, ['CA(L)', 'CA(R)'])
+        self.assertEqual(keep.tolist(), [True, False, False, False, True])
+        self.assertEqual(pairs.blocked_contact_count.tolist(), [1, 1])
+        self.assertEqual(pairs.retained_contact_count.tolist(), [2, 1])
+        self.assertEqual(len(allowed), 2)
+
+    def test_zero_identity_and_nonmutation(self):
+        w = np.array([.275, -3.14159, 0, -0.0], np.float32)
+        raw = np.array([1, 43, 10, 1], np.int64)
+        old = w.tobytes(), raw.tobytes()
+        result = blocked_weights(w, raw, np.zeros(4, np.int64))
+        self.assertEqual(w.tobytes(), result.tobytes())
+        self.assertEqual((w.tobytes(), raw.tobytes()), old)
+
+    def test_partial_and_full(self):
+        w = np.array([2., -4., 0., 1.], np.float32)
+        raw = np.array([4, 4, 3, 7], np.int64)
+        result = blocked_weights(w, raw, np.array([1, 4, 2, 0], np.int64))
+        np.testing.assert_array_equal(result, np.array([1.5, -0., 0., 1.], np.float32))
+        np.testing.assert_array_equal(w, np.array([2., -4., 0., 1.], np.float32))
+
+    def test_invalid_partition_rejected(self):
+        for bad in [-1, 3]:
+            with self.assertRaises(ValueError):
+                blocked_weights(np.array([1.], np.float32), np.array([2], np.int64), np.array([bad], np.int64))
+
+    def test_existing_edge_only(self):
+        p = pd.DataFrame({'source_neuron_idx': [0, 1], 'target_neuron_idx': [2, 0]})
+        ptr = np.array([0, 2, 3, 3], np.int64); dst = np.array([1, 2, 0], np.int32)
+        np.testing.assert_array_equal(edge_ids_for_pairs(p, ptr, dst), [1, 2])
+        p.loc[1, 'target_neuron_idx'] = 2
+        with self.assertRaises(ValueError): edge_ids_for_pairs(p, ptr, dst)
+
+    def test_duplicates_rejected(self):
+        p = pd.DataFrame({'source_neuron_idx': [0], 'target_neuron_idx': [1]})
+        with self.assertRaises(ValueError):
+            edge_ids_for_pairs(p, np.array([0, 2, 2], np.int64), np.array([1, 1], np.int32))
+
+
+if __name__ == '__main__': unittest.main()
diff --git a/models/male-cns-lif/terminal-scope-diagnostic-v1/validate.py b/models/male-cns-lif/terminal-scope-diagnostic-v1/validate.py
new file mode 100644
index 0000000..4ea79c6
--- /dev/null
+++ b/models/male-cns-lif/terminal-scope-diagnostic-v1/validate.py
@@ -0,0 +1,38 @@
+"""Additional adversarial operator tests and durable unit-test record."""
+import io
+import json
+from pathlib import Path
+import sys
+import unittest
+import numpy as np
+
+MODEL = Path('/data/digital-drosophila/models/male-cns-lif/terminal-scope-diagnostic-v1')
+EXP = Path('/data/digital-drosophila/experiments/phase4ab-terminal-scope')
+sys.path.insert(0, str(MODEL))
+from scope import blocked_weights
+import diagnostic
+
+_, _, _, _, save, digest, _, _ = diagnostic.load_context()
+stream = io.StringIO()
+suite = unittest.defaultTestLoader.discover(str(MODEL), pattern='test_scope.py')
+result = unittest.TextTestRunner(stream=stream, verbosity=2).run(suite)
+assert result.wasSuccessful(), stream.getvalue()
+rng = np.random.default_rng(41337)
+raw = rng.integers(1, 100000, size=10000, dtype=np.int64)
+contacts = np.asarray([rng.integers(0, n+1) for n in raw], dtype=np.int64)
+base = (raw.astype(np.float32)*np.float32(.275)*rng.choice([-1, 0, 1], size=len(raw))).astype(np.float32)
+raw_bytes, base_bytes = raw.tobytes(), base.tobytes()
+out = blocked_weights(base, raw, contacts)
+assert np.isfinite(out).all() and np.all(np.abs(out) <= np.abs(base))
+assert np.all(out[contacts == raw] == 0)
+assert out[contacts == 0].tobytes() == base[contacts == 0].tobytes()
+assert np.all(np.sign(out[out != 0]) == np.sign(base[out != 0]))
+assert raw_bytes == raw.tobytes() and base_bytes == base.tobytes()
+for bad in [np.array([np.inf], np.float32), np.array([np.nan], np.float32)]:
+    try: blocked_weights(bad, np.array([2], np.int64), np.array([1], np.int64))
+    except ValueError: pass
+    else: raise AssertionError('nonfinite accepted')
+save(EXP/'regression/unit-tests.json', {'pass': True, 'unit_tests': result.testsRun, 'fuzz_cases': len(raw),
+    'fuzz_seed': 41337, 'finite': True, 'never_sign_flip_or_amplify': True, 'input_nonmutation': True,
+    'zero_identity_bitwise': True, 'unittest_log': stream.getvalue(), 'source_sha256': digest(Path(__file__))})
+print('PASS', result.testsRun, 'unit tests +', len(raw), 'randomized operator cases')
diff --git a/registry/phase4ab-terminal-scope/evidence-index.json b/registry/phase4ab-terminal-scope/evidence-index.json
new file mode 100644
index 0000000..63a7100
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence-index.json
@@ -0,0 +1,356 @@
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diff --git a/registry/phase4ab-terminal-scope/evidence/INTERPRETATION.zh.md b/registry/phase4ab-terminal-scope/evidence/INTERPRETATION.zh.md
new file mode 100644
index 0000000..8fd8a54
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/INTERPRETATION.zh.md
@@ -0,0 +1,36 @@
+# Phase 4AB 机制解读
+
+正式状态：**COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE**。
+
+这一轮区分了“PN→KC 传入位置”与“维持 PN 放电的上游反馈”。没有修复或批准新的 APL 生理模型，也没有训练。
+
+| 诊断范围 | 活跃 KC（6 个旧气味） | 目标 KC 晚期 spikes | VA6 PN 晚期 spikes |
+|---|---:|---:|---:|
+| 原模型 | 139–172 | 60–61 | 212–214 |
+| 仅明确 calyx 接触 | 1–2 | 0 | 212–214 |
+| 同批 PN 的全部 KC 输出 | 1 | 0 | 212–214 |
+| 同批 PN 的全部快速输出 | 0 | 0 | 0 |
+
+晚期窗口是 500–1,000 ms。每个气味沿用 seed 131101；总计 24 组诊断、4 次精确重复，不是 5-seed 学习验证。
+
+## 能说明什么
+
+仅 calyx 接触阻断后，目标 KC82312 的晚期 spikes 范围为 0，VA6 仍为 212–214。
+同时 KC 总活跃数降为 1–2，原模型为 139–172。不能把这种接近静默的结果包装成编码或记忆改善。
+即使两个局部阻断条件的事件序列相同，其电压/g 仍可能不同；逐气味比较见 narrow-vs-allKC.csv。
+宽范围 PN 快速输出阻断影响反馈路径，不等价于局部 calyx 调制；它也没有关闭 PN 胞体或 frozen graded APL 的 PN 输入。
+
+## 仍不能说明什么
+
+完全阻断只是工程极端对照，不是 APL 的实测释放抑制比例。没有估计 receptor、bouton、局部扩散范围或时间常数。
+未使用 held-out 气味，未检验学习、保持、反转或动作输出。不得选取这次“让活动更少”的操作作为正式脑模型。
+剩余 late KC 的 ID/type 已单独保存；其来源不能仅凭残余计数猜测。
+
+## 下一步边界
+
+先继续 upstream feedback / compartment-specific physiology 的证据约束，区分 calyx 信号传递与触角叶持续放电，再确定可检验的局部动力学假设。
+不能靠增加整体抑制、调 eta/threshold、扩大 plastic mask 或让 KC 全静默宣称修复。当前不进入学习、游戏或视觉。
+
+相关原始研究：[Prisco et al., 2021](https://doi.org/10.7554/eLife.74172)、[Amin et al., 2020](https://doi.org/10.7554/eLife.56954)。它们支持研究局部 APL 作用，不直接验证本实验完全阻断幅度。
+
+顶层验收仍为 5/10（50%）；本轮推进的是机制定位与可重复诊断能力。最终完整性状态见 regression/final-integrity.json。
diff --git a/registry/phase4ab-terminal-scope/evidence/REPORT.md b/registry/phase4ab-terminal-scope/evidence/REPORT.md
new file mode 100644
index 0000000..2717dee
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/REPORT.md
@@ -0,0 +1,52 @@
+# Phase 4AB — calyx contact-scope diagnostic
+
+Status: COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE.
+Diagnostic interventions only; no calibrated biological inhibition, no training, no parameter winner.
+
+Eligible PNs: 229/259. CA mask: 20263 edges / 337099 contacts.
+Affected KCs: 3760. Mixed-ROI affected edges: 3323; retained other contacts: 28975.
+Broader PN→KC control: 21882 edges / 384555 contacts. All-fast-PN-output control: 116211 edges / 1268111 contacts.
+
+| Odor | Condition | Active KC | KC late spikes | KC82312 late | VA6 late |
+|---|---|---:|---:|---:|---:|
+| ethyl (R)-(-)-3-hydroxybutanoate | frozen_reference | 160 | 114 | 60 | 213 |
+| ethyl (R)-(-)-3-hydroxybutanoate | calyx_PN_KC_contact_block | 1 | 39 | 0 | 214 |
+| ethyl (R)-(-)-3-hydroxybutanoate | all_PN_KC_block | 1 | 39 | 0 | 214 |
+| ethyl (R)-(-)-3-hydroxybutanoate | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| 3-penten-2-one | frozen_reference | 172 | 118 | 60 | 213 |
+| 3-penten-2-one | calyx_PN_KC_contact_block | 2 | 39 | 0 | 213 |
+| 3-penten-2-one | all_PN_KC_block | 1 | 39 | 0 | 213 |
+| 3-penten-2-one | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| (2R)-hexan-2-ol | frozen_reference | 144 | 117 | 61 | 213 |
+| (2R)-hexan-2-ol | calyx_PN_KC_contact_block | 1 | 39 | 0 | 213 |
+| (2R)-hexan-2-ol | all_PN_KC_block | 1 | 39 | 0 | 213 |
+| (2R)-hexan-2-ol | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| gamma-propyl-gamma-butyrolactone | frozen_reference | 151 | 117 | 60 | 212 |
+| gamma-propyl-gamma-butyrolactone | calyx_PN_KC_contact_block | 2 | 39 | 0 | 212 |
+| gamma-propyl-gamma-butyrolactone | all_PN_KC_block | 1 | 40 | 0 | 212 |
+| gamma-propyl-gamma-butyrolactone | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| 2-methyl butyl acetate | frozen_reference | 139 | 118 | 61 | 213 |
+| 2-methyl butyl acetate | calyx_PN_KC_contact_block | 1 | 39 | 0 | 212 |
+| 2-methyl butyl acetate | all_PN_KC_block | 1 | 39 | 0 | 212 |
+| 2-methyl butyl acetate | whole_PN_output_block | 0 | 0 | 0 | 0 |
+| ethyl (S)-(+)-3-hydroxybutanoate | frozen_reference | 163 | 119 | 61 | 214 |
+| ethyl (S)-(+)-3-hydroxybutanoate | calyx_PN_KC_contact_block | 1 | 39 | 0 | 214 |
+| ethyl (S)-(+)-3-hydroxybutanoate | all_PN_KC_block | 1 | 39 | 0 | 214 |
+| ethyl (S)-(+)-3-hydroxybutanoate | whole_PN_output_block | 0 | 0 | 0 | 0 |
+
+Late means 500–1,000 ms; 120 ms old calibration odor input; one seed, six old odors. No held-out generalization claim.
+Identical scheduled requests across conditions. Delivered request-associated output differences versus reference: 459 (summed over all comparisons). See per-trial table; this is state/refractory feedback, not a changed RNG.
+
+## Interpretation limits
+
+CA selection uses exact primary_post labels plus matched APL→PN/ROI metadata, not bouton identities or inferred receptors. Unknown ROIs are not reclassified.
+Whole-PN control removes fast output, not somatic spikes or the frozen graded APL input. It is not a complete PN knockout.
+Reduction/silencing is not restored information or associative memory. No condition becomes a formal model. Fixed-event replay freezes other recorded events/APL; dynamic trials allow natural recurrent feedback.
+Local-inhibition motivation: [Prisco et al.](https://doi.org/10.7554/eLife.74172), [Amin et al.](https://doi.org/10.7554/eLife.56954). These sources do not establish the complete-block operator as physiological.
+
+## Verification
+
+Six original trials reproduced exactly (whole spike events, watched state and final counts/V/g). Four first-odor repeats exact. Five deterministic-v2 frozen reference trials exact. Finite state throughout.
+Original 230,239 files and both Phase 4AA manifests rechecked before/after. Base CSR/count/sign, frozen LIF/APL, eligibility-v2 and 14,232 plastic mask preserved.
+Timing includes diagnostic CPU/GPU observation overhead and is not a runtime speed benchmark. ComfyUI was not stopped or unloaded.
+Top-level acceptance gates remain 5/10 (50%); anatomical diagnosis is not evidence of learning success.
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/ROI-partition.csv b/registry/phase4ab-terminal-scope/evidence/audit/ROI-partition.csv
new file mode 100644
index 0000000..9ee88bb
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/ROI-partition.csv
@@ -0,0 +1,12 @@
+primary_post,in_scope,contacts
+CA(L),False,927
+CA(L),True,152627
+CA(R),False,11
+CA(R),True,184472
+LH(L),False,15
+PLP(L),False,14
+SCL(L),False,792
+SCL(R),False,140
+SLP(R),False,57
+SMP(L),False,15
+CentralBrain-unspecified,False,46159
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/condition-ranges.csv b/registry/phase4ab-terminal-scope/evidence/audit/condition-ranges.csv
new file mode 100644
index 0000000..7e41361
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/condition-ranges.csv
@@ -0,0 +1,5 @@
+condition,whole_spikes_min,whole_spikes_max,KC_active_min,KC_active_max,KC_spikes_min,KC_spikes_max,KC_late_spikes_min,KC_late_spikes_max,KC82312_late_spikes_min,KC82312_late_spikes_max,VA6_late_spikes_min,VA6_late_spikes_max,wall_seconds_min,wall_seconds_max
+frozen_reference,1102887.0,1113472.0,139.0,172.0,372.0,408.0,114.0,119.0,60.0,61.0,212.0,214.0,14.812315593997482,15.05500110599678
+calyx_PN_KC_contact_block,1096632.0,1112931.0,1.0,2.0,72.0,73.0,39.0,39.0,0.0,0.0,212.0,214.0,14.777685339009622,14.96407428199018
+all_PN_KC_block,1096632.0,1112931.0,1.0,1.0,72.0,73.0,39.0,40.0,0.0,0.0,212.0,214.0,14.785283767996589,14.836084023001604
+whole_PN_output_block,72.0,188.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,9.320402383003966,9.454139529989334
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/final-service-health.json b/registry/phase4ab-terminal-scope/evidence/audit/final-service-health.json
new file mode 100644
index 0000000..23449f5
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/final-service-health.json
@@ -0,0 +1,20 @@
+{
+  "ComfyUI_queues": [
+    {
+      "pending": 0,
+      "port": 8188,
+      "running": 0
+    },
+    {
+      "pending": 0,
+      "port": 8189,
+      "running": 0
+    },
+    {
+      "pending": 0,
+      "port": 8190,
+      "running": 0
+    }
+  ],
+  "services_stopped": false
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/final-summary.json b/registry/phase4ab-terminal-scope/evidence/audit/final-summary.json
new file mode 100644
index 0000000..a118c99
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/final-summary.json
@@ -0,0 +1,30 @@
+{
+  "candidate": false,
+  "frozen_baseline_modified": false,
+  "integrity_pass": true,
+  "preserved_acceptance_gates": "5/10",
+  "reference_pass": true,
+  "scope": {
+    "APL_target_PNs": 259,
+    "all_PN_KC_contacts": 384555,
+    "all_PN_KC_edges": 21882,
+    "biophysical_coefficient_known": false,
+    "calyx_affected_KCs": 3760,
+    "calyx_blocked_contacts": 337099,
+    "calyx_mask_edges": 20263,
+    "calyx_other_contacts_retained_on_affected_edges": 28975,
+    "edges": 25582938,
+    "eligible_PNs": 229,
+    "ineligible_PNs": 30,
+    "mixed_CA_nonCA_edges": 3323,
+    "neurons": 166700,
+    "raw_contacts": 124177617,
+    "same_bouton_confirmed": false,
+    "unknown_ROI_contacts_in_original_PN_KC": 46159,
+    "unknown_contacts_relabelled": 0,
+    "whole_PN_contacts": 1268111,
+    "whole_PN_edges": 116211
+  },
+  "status": "COMPLETE-SCOPE-COUNTERFACTUAL / NO-DYNAMICS-CANDIDATE",
+  "training": false
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/mechanism-interpretation.json b/registry/phase4ab-terminal-scope/evidence/audit/mechanism-interpretation.json
new file mode 100644
index 0000000..c7ba69e
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/mechanism-interpretation.json
@@ -0,0 +1,19 @@
+{
+  "CA_block_ALLN_watched_late_rate_range_hz": [
+    454.0,
+    456.0
+  ],
+  "CA_block_active_KC_range": [
+    1,
+    2
+  ],
+  "CA_vs_allKC_spike_sequence_exact_for_all_odors": false,
+  "all_six_CA_block_VA6_late_persists": true,
+  "all_six_CA_block_targetKC_late_zero": true,
+  "all_six_broad_block_KC_and_VA6_late_zero": true,
+  "new_candidate": false,
+  "not_a_memory_or_separability_success": true,
+  "not_a_physiological_APL_gain_estimate": true,
+  "posthoc_summary_not_new_experiment": true,
+  "source_sha256": "33ba5f323e9ed3343f43a8d64fb7e862c8a4f1118b9b441f4745e26cc14303a8"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/narrow-vs-allKC.csv b/registry/phase4ab-terminal-scope/evidence/audit/narrow-vs-allKC.csv
new file mode 100644
index 0000000..0cbbfa5
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/narrow-vs-allKC.csv
@@ -0,0 +1,7 @@
+odor_index,terminal_vs_allKC_events_exact,counts_exact,max_V_difference,max_g_difference
+0,True,True,59.083824157714844,66.9503173828125
+1,False,False,232.58389282226562,346.2290802001953
+2,True,True,59.49408721923828,60.36189270019531
+3,False,False,173.94474029541016,486.3127136230469
+4,True,True,59.40711975097656,59.434303283691406
+5,True,True,59.37791442871094,58.91309356689453
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/population-counts.csv b/registry/phase4ab-terminal-scope/evidence/audit/population-counts.csv
new file mode 100644
index 0000000..c735c43
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/population-counts.csv
@@ -0,0 +1,241 @@
+trial,population,neurons,active,spikes,late_spikes
+0-131101-frozen_reference,ALLN,420,388,111462,56532
+0-131101-frozen_reference,ALPN,686,573,126794,64388
+0-131101-frozen_reference,APL,2,2,898,454
+0-131101-frozen_reference,DAN,340,133,10825,5631
+0-131101-frozen_reference,DPM,2,2,738,376
+0-131101-frozen_reference,KC,4064,160,384,114
+0-131101-frozen_reference,MBON,97,66,10545,5405
+0-131101-frozen_reference,PN_olfactory_annotation,2639,54,3217,1665
+0-131101-frozen_reference,dopamine_metadata_role_unknown,52,48,5907,3127
+0-131101-frozen_reference,other_annotation,158398,12975,840820,429844
+0-131101-calyx_PN_KC_contact_block,ALLN,420,388,111462,56539
+0-131101-calyx_PN_KC_contact_block,ALPN,686,573,126817,64399
+0-131101-calyx_PN_KC_contact_block,APL,2,2,897,455
+0-131101-calyx_PN_KC_contact_block,DAN,340,134,10738,5648
+0-131101-calyx_PN_KC_contact_block,DPM,2,2,718,376
+0-131101-calyx_PN_KC_contact_block,KC,4064,1,72,39
+0-131101-calyx_PN_KC_contact_block,MBON,97,62,10335,5403
+0-131101-calyx_PN_KC_contact_block,PN_olfactory_annotation,2639,53,3214,1660
+0-131101-calyx_PN_KC_contact_block,dopamine_metadata_role_unknown,52,50,5937,3092
+0-131101-calyx_PN_KC_contact_block,other_annotation,158398,13391,838005,431222
+0-131101-all_PN_KC_block,ALLN,420,388,111462,56539
+0-131101-all_PN_KC_block,ALPN,686,573,126817,64399
+0-131101-all_PN_KC_block,APL,2,2,897,455
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+0-131101-all_PN_KC_block,DPM,2,2,718,376
+0-131101-all_PN_KC_block,KC,4064,1,72,39
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diff --git a/registry/phase4ab-terminal-scope/evidence/audit/remaining-late-KCs.csv b/registry/phase4ab-terminal-scope/evidence/audit/remaining-late-KCs.csv
new file mode 100644
index 0000000..cd73821
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/remaining-late-KCs.csv
@@ -0,0 +1,7 @@
+odor_index,neuron_idx,body_id,type,late_spikes,first_late_spike_ms,last_spike_ms,source_identity_not_inferred_from_this_count
+0,78836,104513,KCg-d,39,502.6,999.4,True
+1,78836,104513,KCg-d,39,500.5,992.5,True
+2,78836,104513,KCg-d,39,509.9,996.4,True
+3,78836,104513,KCg-d,39,500.4,995.8,True
+4,78836,104513,KCg-d,39,508.6,998.5,True
+5,78836,104513,KCg-d,39,506.1,994.9,True
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/request-comparison.csv b/registry/phase4ab-terminal-scope/evidence/audit/request-comparison.csv
new file mode 100644
index 0000000..e19c4bb
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/request-comparison.csv
@@ -0,0 +1,25 @@
+trial,scheduled,identical_request_keys,accepted,blocked,preexisting,status_differences_vs_reference,actual_output_differences_vs_reference
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diff --git a/registry/phase4ab-terminal-scope/evidence/audit/run-complete.json b/registry/phase4ab-terminal-scope/evidence/audit/run-complete.json
new file mode 100644
index 0000000..ceafccd
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/run-complete.json
@@ -0,0 +1,9 @@
+{
+  "all_finite": true,
+  "candidate": false,
+  "exact_repeat_trials": 4,
+  "frozen_reference_trials": 5,
+  "old_trial_reproductions": 6,
+  "training": false,
+  "trials": 24
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/scope-summary.json b/registry/phase4ab-terminal-scope/evidence/audit/scope-summary.json
new file mode 100644
index 0000000..af34cf9
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/scope-summary.json
@@ -0,0 +1,21 @@
+{
+  "APL_target_PNs": 259,
+  "all_PN_KC_contacts": 384555,
+  "all_PN_KC_edges": 21882,
+  "biophysical_coefficient_known": false,
+  "calyx_affected_KCs": 3760,
+  "calyx_blocked_contacts": 337099,
+  "calyx_mask_edges": 20263,
+  "calyx_other_contacts_retained_on_affected_edges": 28975,
+  "edges": 25582938,
+  "eligible_PNs": 229,
+  "ineligible_PNs": 30,
+  "mixed_CA_nonCA_edges": 3323,
+  "neurons": 166700,
+  "raw_contacts": 124177617,
+  "same_bouton_confirmed": false,
+  "unknown_ROI_contacts_in_original_PN_KC": 46159,
+  "unknown_contacts_relabelled": 0,
+  "whole_PN_contacts": 1268111,
+  "whole_PN_edges": 116211
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/trials.csv b/registry/phase4ab-terminal-scope/evidence/audit/trials.csv
new file mode 100644
index 0000000..52f2eee
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/trials.csv
@@ -0,0 +1,25 @@
+trial,odor_index,odor_name,seed,condition,whole_spikes,KC_active,KC_active_fraction,KC_spikes,KC_late_spikes,KC82312_late_spikes,VA6_late_spikes,finite,wall_seconds,biological_ms
+0-131101-frozen_reference,0,ethyl (R)-(-)-3-hydroxybutanoate,131101,frozen_reference,1111590,160,0.03937007874015748,384,114,60,213,True,15.05500110599678,1000
+0-131101-calyx_PN_KC_contact_block,0,ethyl (R)-(-)-3-hydroxybutanoate,131101,calyx_PN_KC_contact_block,1108195,1,0.00024606299212598425,72,39,0,214,True,14.781203242993797,1000
+0-131101-all_PN_KC_block,0,ethyl (R)-(-)-3-hydroxybutanoate,131101,all_PN_KC_block,1108195,1,0.00024606299212598425,72,39,0,214,True,14.814815709993127,1000
+0-131101-whole_PN_output_block,0,ethyl (R)-(-)-3-hydroxybutanoate,131101,whole_PN_output_block,126,0,0.0,0,0,0,0,True,9.408489347988507,1000
+1-131101-frozen_reference,1,3-penten-2-one,131101,frozen_reference,1105228,172,0.04232283464566929,408,118,60,213,True,14.849270171995158,1000
+1-131101-calyx_PN_KC_contact_block,1,3-penten-2-one,131101,calyx_PN_KC_contact_block,1101977,2,0.0004921259842519685,73,39,0,213,True,14.829743235008209,1000
+1-131101-all_PN_KC_block,1,3-penten-2-one,131101,all_PN_KC_block,1105637,1,0.00024606299212598425,72,39,0,213,True,14.836084023001604,1000
+1-131101-whole_PN_output_block,1,3-penten-2-one,131101,whole_PN_output_block,161,0,0.0,0,0,0,0,True,9.406520318007097,1000
+2-131101-frozen_reference,2,(2R)-hexan-2-ol,131101,frozen_reference,1110776,144,0.03543307086614173,381,117,61,213,True,14.826602405999438,1000
+2-131101-calyx_PN_KC_contact_block,2,(2R)-hexan-2-ol,131101,calyx_PN_KC_contact_block,1108354,1,0.00024606299212598425,73,39,0,213,True,14.964074281990179,1000
+2-131101-all_PN_KC_block,2,(2R)-hexan-2-ol,131101,all_PN_KC_block,1108354,1,0.00024606299212598425,73,39,0,213,True,14.831739582994487,1000
+2-131101-whole_PN_output_block,2,(2R)-hexan-2-ol,131101,whole_PN_output_block,111,0,0.0,0,0,0,0,True,9.401394432992674,1000
+3-131101-frozen_reference,3,gamma-propyl-gamma-butyrolactone,131101,frozen_reference,1104953,151,0.037155511811023625,385,117,60,212,True,14.826186497011804,1000
+3-131101-calyx_PN_KC_contact_block,3,gamma-propyl-gamma-butyrolactone,131101,calyx_PN_KC_contact_block,1099001,2,0.0004921259842519685,73,39,0,212,True,14.787222463011858,1000
+3-131101-all_PN_KC_block,3,gamma-propyl-gamma-butyrolactone,131101,all_PN_KC_block,1104322,1,0.00024606299212598425,73,40,0,212,True,14.788134792994242,1000
+3-131101-whole_PN_output_block,3,gamma-propyl-gamma-butyrolactone,131101,whole_PN_output_block,91,0,0.0,0,0,0,0,True,9.370064136994188,1000
+4-131101-frozen_reference,4,2-methyl butyl acetate,131101,frozen_reference,1102887,139,0.03420275590551181,372,118,61,213,True,14.812315593997482,1000
+4-131101-calyx_PN_KC_contact_block,4,2-methyl butyl acetate,131101,calyx_PN_KC_contact_block,1096632,1,0.00024606299212598425,72,39,0,212,True,14.777685339009622,1000
+4-131101-all_PN_KC_block,4,2-methyl butyl acetate,131101,all_PN_KC_block,1096632,1,0.00024606299212598425,72,39,0,212,True,14.785283767996589,1000
+4-131101-whole_PN_output_block,4,2-methyl butyl acetate,131101,whole_PN_output_block,72,0,0.0,0,0,0,0,True,9.320402383003966,1000
+5-131101-frozen_reference,5,ethyl (S)-(+)-3-hydroxybutanoate,131101,frozen_reference,1113472,163,0.04010826771653543,395,119,61,214,True,14.947139675990911,1000
+5-131101-calyx_PN_KC_contact_block,5,ethyl (S)-(+)-3-hydroxybutanoate,131101,calyx_PN_KC_contact_block,1112931,1,0.00024606299212598425,72,39,0,214,True,14.830266532007954,1000
+5-131101-all_PN_KC_block,5,ethyl (S)-(+)-3-hydroxybutanoate,131101,all_PN_KC_block,1112931,1,0.00024606299212598425,72,39,0,214,True,14.83051910600625,1000
+5-131101-whole_PN_output_block,5,ethyl (S)-(+)-3-hydroxybutanoate,131101,whole_PN_output_block,188,0,0.0,0,0,0,0,True,9.454139529989334,1000
diff --git a/registry/phase4ab-terminal-scope/evidence/audit/watched-counts.csv b/registry/phase4ab-terminal-scope/evidence/audit/watched-counts.csv
new file mode 100644
index 0000000..d837308
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/audit/watched-counts.csv
@@ -0,0 +1,265 @@
+trial,neuron_idx,body_id,type,population,spikes,late_spikes,late_rate_hz
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+0-131101-frozen_reference,6842,17484,DC2_adPN,ALPN,340,171,342.0
+0-131101-frozen_reference,82312,109321,KC,KC,120,60,120.0
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diff --git a/registry/phase4ab-terminal-scope/evidence/checksums.sha256 b/registry/phase4ab-terminal-scope/evidence/checksums.sha256
new file mode 100644
index 0000000..b15dc14
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/checksums.sha256
@@ -0,0 +1,199 @@
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diff --git a/registry/phase4ab-terminal-scope/evidence/gpu-reference/extension.json b/registry/phase4ab-terminal-scope/evidence/gpu-reference/extension.json
new file mode 100644
index 0000000..83a0497
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/gpu-reference/extension.json
@@ -0,0 +1,17 @@
+{
+  "binary": "/data/digital-drosophila/experiments/phase4ab-terminal-scope/gpu-reference/extension-build/male_cns_lif_deterministic_v2_ext.so",
+  "binary_sha256": "328cdf2dd588ee875ffa06d9da5f77165e82b7ab1e62395135798116d6b3f0fc",
+  "build_seconds": 58.095501807008986,
+  "flags": {
+    "cuda": [
+      "-O3",
+      "--fmad=false",
+      "-std=c++20"
+    ],
+    "cxx": [
+      "-O3",
+      "-ffp-contract=off"
+    ]
+  },
+  "status": "PASS"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/manifest.json b/registry/phase4ab-terminal-scope/evidence/manifest.json
new file mode 100644
index 0000000..e2288fe
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/manifest.json
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diff --git a/registry/phase4ab-terminal-scope/evidence/performance/summary.json b/registry/phase4ab-terminal-scope/evidence/performance/summary.json
new file mode 100644
index 0000000..a1b64d2
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/performance/summary.json
@@ -0,0 +1,8 @@
+{
+  "ComfyUI_models_unloaded": false,
+  "device": "NVIDIA GeForce RTX 4090",
+  "diagnostic_overhead_included": true,
+  "not_runtime_benchmark": true,
+  "peak_VRAM_bytes": 401255936,
+  "wall_seconds_including_build": 497.18762119600433
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/protocol/calibration-panel.json b/registry/phase4ab-terminal-scope/evidence/protocol/calibration-panel.json
new file mode 100644
index 0000000..d623a0d
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/calibration-panel.json
@@ -0,0 +1,68 @@
+[
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+    "odor_id": "OMSUIQOIVADKIM-RXMQYKEDSA-N",
+    "odor_name": "ethyl (R)-(-)-3-hydroxybutanoate",
+    "split": "calibration"
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+    "split": "calibration"
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+    "odor_id": "XHIUFYZDQBSEMF-UHFFFAOYSA-N",
+    "odor_name": "2-methyl butyl acetate",
+    "split": "calibration"
+  },
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+    "odor_id": "OMSUIQOIVADKIM-YFKPBYRVSA-N",
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diff --git a/registry/phase4ab-terminal-scope/evidence/protocol/environment.json b/registry/phase4ab-terminal-scope/evidence/protocol/environment.json
new file mode 100644
index 0000000..5066d55
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/environment.json
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+{
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+  "nvcc": "nvcc: NVIDIA (R) Cuda compiler driver\nCopyright (c) 2005-2024 NVIDIA Corporation\nBuilt on Tue_Oct_29_23:50:19_PDT_2024\nCuda compilation tools, release 12.6, V12.6.85\nBuild cuda_12.6.r12.6/compiler.35059454_0\n",
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diff --git a/registry/phase4ab-terminal-scope/evidence/protocol/forcing-hashes.json b/registry/phase4ab-terminal-scope/evidence/protocol/forcing-hashes.json
new file mode 100644
index 0000000..49772f7
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/forcing-hashes.json
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new file mode 100644
index 0000000..ae82791
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/imported-code-hashes.json
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+    "sha256": "0b2f71365267886933ba5becb52f4123d3d4e95e9c5bc0cf19c9bf0563831625"
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+    "sha256": "0b2f71365267886933ba5becb52f4123d3d4e95e9c5bc0cf19c9bf0563831625"
+  },
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+    "sha256": "4ef071ba88f4e1cd78f068be58414dd7f4099dfac69c68266c4f46e175eab9fb"
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+    "sha256": "1c4e3e6f06708bfec30b24e92297f320b2b8b87ebbbe6da501f5f2db4f74762a"
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+    "sha256": "c8ec2ae6e72d35fedbd42acc6e6b5e7af2634d5b9805dc20e777b172c55d5aa4"
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+    "sha256": "c97b908f38619a52a291c63fe90056f69d966f4138f50a3489f54e6e0ff8683e"
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+    "sha256": "76ba0cae6c5db417ec030456797f7935216c6877bd339d5e435133a0061e3930"
+  }
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/protocol/input-hashes.json b/registry/phase4ab-terminal-scope/evidence/protocol/input-hashes.json
new file mode 100644
index 0000000..8e14ff0
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/input-hashes.json
@@ -0,0 +1,37 @@
+[
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+    "path": "experiments/phase4aa-apl-pn-scope/localization/APL-incident.parquet",
+    "sha256": "442b0fa2640cd1bfaf97e558ae912a8601dc3289b420021526353bc3bcfba849"
+  },
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+  },
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+    "path": "experiments/phase4aa-apl-pn-scope/external-resources/synaptic-partners/download-verification.json",
+    "sha256": "4fd796f88f05a08d5f7f3c3ff2c63c939f330e9acc4519a5272c8b3b97fcf4ac"
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+    "path": "datasets/male-cns-v1.0/processed/neuron-only/neuron-index/unified-metadata.parquet",
+    "sha256": "922af16846a065c3dbfca7c11146b83ca217fcbd7392edc745f444a04eae8c63"
+  },
+  {
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+    "path": "datasets/male-cns-v1.0/processed/neuron-only/gpu/csr-weights.int64.npy",
+    "sha256": "c7ae101451dd19c47fd976bcfacbc52d67193a68ffa04c5b4d2e911cfd52d99b"
+  },
+  {
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+    "sha256": "ce20f7433f78442c717ad2a7b5394cf4a3b109d990b4be0788040b7b0f4ed150"
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+  {
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+    "sha256": "fe43420f11e6242a11f8199ae7f097cab4b8a6db181d36f2a46b9e46670acbb4"
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+]
diff --git a/registry/phase4ab-terminal-scope/evidence/protocol/launch-addendum.json b/registry/phase4ab-terminal-scope/evidence/protocol/launch-addendum.json
new file mode 100644
index 0000000..10b088f
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/launch-addendum.json
@@ -0,0 +1,20 @@
+{
+  "launcher_sha256": "0b2f71365267886933ba5becb52f4123d3d4e95e9c5bc0cf19c9bf0563831625",
+  "model_source_edited": false,
+  "module_paths": [
+    "/data/digital-drosophila/models/male-cns-lif/deterministic-runtime-v2",
+    "/data/digital-drosophila/models/male-cns-lif/credit-v3",
+    "/data/digital-drosophila/models/male-cns-lif/timing-audit-v1",
+    "/data/digital-drosophila/models/male-cns-lif/timing-credit-v1",
+    "/data/digital-drosophila/models/male-cns-lif/timing-stability-v1",
+    "/data/digital-drosophila/models/male-cns-lif/odor-timing-generalization-v1",
+    "/data/digital-drosophila/models/male-cns-lif/csus-audit-v1",
+    "/data/digital-drosophila/models/male-cns-lif/late-kc-audit-v1",
+    "/data/digital-drosophila/models/male-cns-lif/dpm-hypothesis-v1",
+    "/data/digital-drosophila/models/male-cns-lif/pn-feedback-audit-v1",
+    "/data/digital-drosophila/models/male-cns-lif/transmitter-audit-v1"
+  ],
+  "only_fix": "Add explicit existing frozen dependency directories to module lookup",
+  "previous_attempt": "ModuleNotFoundError: phase4v before run-start and before simulation",
+  "protocol_parameters_changed": false
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/protocol/mask-hashes.json b/registry/phase4ab-terminal-scope/evidence/protocol/mask-hashes.json
new file mode 100644
index 0000000..56238e6
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/mask-hashes.json
@@ -0,0 +1,5 @@
+{
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+  "calyx_PN_KC_contact_block.parquet": "0e2585cdb7d44b24f4579d90149f9bb7738718164036dde910be2d94a67370fc",
+  "whole_PN_output_block.parquet": "95f800944d01738e3d36da64a17c9bd37b8372fd8ba165bdcd31a94da0fdee29"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/protocol/preregistered.json b/registry/phase4ab-terminal-scope/evidence/protocol/preregistered.json
new file mode 100644
index 0000000..6911cfe
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/protocol/preregistered.json
@@ -0,0 +1,51 @@
+{
+  "before_analysis": true,
+  "config": {
+    "canonical": "datasets/male-cns-v1.0/processed/neuron-only",
+    "conditions": [
+      "frozen_reference",
+      "calyx_PN_KC_contact_block",
+      "all_PN_KC_block",
+      "whole_PN_output_block"
+    ],
+    "event_prior": "experiments/phase4z-pn-feedback-audit",
+    "experiment": "experiments/phase4ab-terminal-scope",
+    "input_model": "models/male-cns-lif/csus-audit-v1",
+    "late_start_ms": 500,
+    "model": "models/male-cns-lif/terminal-scope-diagnostic-v1",
+    "no_candidate": true,
+    "odor_indices": [
+      0,
+      1,
+      2,
+      3,
+      4,
+      5
+    ],
+    "phase": "4AB",
+    "prior_experiment": "experiments/phase4aa-apl-pn-scope",
+    "prior_model": "models/male-cns-lif/apl-pn-scope-audit-v1",
+    "repeat_odor_index": 0,
+    "roi_labels": [
+      "CA(L)",
+      "CA(R)"
+    ],
+    "root": "/data/digital-drosophila",
+    "runtime": "models/male-cns-lif/deterministic-runtime-v2",
+    "seed": 131101,
+    "snapshot": "registry/snapshots/bootstrap-20260929",
+    "state_prior": "experiments/phase4y-dpm-hypothesis",
+    "target_KC": 82312,
+    "watched_VA6": 133666,
+    "workers": 4
+  },
+  "parent_commit": "d6843e675dec5ae38a06f2ba70d74836aea53ace",
+  "source_hashes": {
+    "PROTOCOL.md": "451b53b128eb0ad67acb81f060f3676794a68c98637dd2c0eddd137da509fccf",
+    "config.yaml": "e22088d9847504a50c0e684d2cee9420f484ab1ebef9d6057921062d8f785e73",
+    "diagnostic.py": "c8ec2ae6e72d35fedbd42acc6e6b5e7af2634d5b9805dc20e777b172c55d5aa4",
+    "scope.py": "8f5774496dcceaee1c2793a5308754cbd0864c4a38d507481071d988f9de424d",
+    "test_scope.py": "38a1c6e653ae97e77e5feda3ee8f2f8a3c366755bfbbd57ca1373b9b8f971bbb"
+  },
+  "timestamp_utc": "2026-09-29T16:14:53.622166+00:00"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/0-131101-all_PN_KC_block.json b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-all_PN_KC_block.json
new file mode 100644
index 0000000..408587f
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-all_PN_KC_block.json
@@ -0,0 +1,13 @@
+{
+  "declared_weight_scope_exact": true,
+  "repeat_exact": {
+    "counts": true,
+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "requests": true,
+    "states": true,
+    "trace": true
+  },
+  "trial": "0-131101-all_PN_KC_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/0-131101-calyx_PN_KC_contact_block.json b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-calyx_PN_KC_contact_block.json
new file mode 100644
index 0000000..6444635
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-calyx_PN_KC_contact_block.json
@@ -0,0 +1,13 @@
+{
+  "declared_weight_scope_exact": true,
+  "repeat_exact": {
+    "counts": true,
+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "requests": true,
+    "states": true,
+    "trace": true
+  },
+  "trial": "0-131101-calyx_PN_KC_contact_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/0-131101-frozen_reference.json b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-frozen_reference.json
new file mode 100644
index 0000000..0d61f5d
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-frozen_reference.json
@@ -0,0 +1,21 @@
+{
+  "declared_weight_scope_exact": true,
+  "prior_exact": {
+    "counts": true,
+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "trace": true,
+    "watched_states": true
+  },
+  "repeat_exact": {
+    "counts": true,
+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "requests": true,
+    "states": true,
+    "trace": true
+  },
+  "trial": "0-131101-frozen_reference"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/0-131101-whole_PN_output_block.json b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-whole_PN_output_block.json
new file mode 100644
index 0000000..6955dad
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/0-131101-whole_PN_output_block.json
@@ -0,0 +1,13 @@
+{
+  "declared_weight_scope_exact": true,
+  "repeat_exact": {
+    "counts": true,
+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "requests": true,
+    "states": true,
+    "trace": true
+  },
+  "trial": "0-131101-whole_PN_output_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/1-131101-all_PN_KC_block.json b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-all_PN_KC_block.json
new file mode 100644
index 0000000..84541eb
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-all_PN_KC_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "1-131101-all_PN_KC_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/1-131101-calyx_PN_KC_contact_block.json b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-calyx_PN_KC_contact_block.json
new file mode 100644
index 0000000..826dcee
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-calyx_PN_KC_contact_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "1-131101-calyx_PN_KC_contact_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/1-131101-frozen_reference.json b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-frozen_reference.json
new file mode 100644
index 0000000..98e2504
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-frozen_reference.json
@@ -0,0 +1,12 @@
+{
+  "declared_weight_scope_exact": true,
+  "prior_exact": {
+    "counts": true,
+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "trace": true,
+    "watched_states": true
+  },
+  "trial": "1-131101-frozen_reference"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/1-131101-whole_PN_output_block.json b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-whole_PN_output_block.json
new file mode 100644
index 0000000..c7c1533
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/1-131101-whole_PN_output_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "1-131101-whole_PN_output_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/2-131101-all_PN_KC_block.json b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-all_PN_KC_block.json
new file mode 100644
index 0000000..de9932a
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-all_PN_KC_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "2-131101-all_PN_KC_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/2-131101-calyx_PN_KC_contact_block.json b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-calyx_PN_KC_contact_block.json
new file mode 100644
index 0000000..b23954a
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-calyx_PN_KC_contact_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "2-131101-calyx_PN_KC_contact_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/2-131101-frozen_reference.json b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-frozen_reference.json
new file mode 100644
index 0000000..2aa75ef
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-frozen_reference.json
@@ -0,0 +1,12 @@
+{
+  "declared_weight_scope_exact": true,
+  "prior_exact": {
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+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "trace": true,
+    "watched_states": true
+  },
+  "trial": "2-131101-frozen_reference"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/2-131101-whole_PN_output_block.json b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-whole_PN_output_block.json
new file mode 100644
index 0000000..28d1e70
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/2-131101-whole_PN_output_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "2-131101-whole_PN_output_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/3-131101-all_PN_KC_block.json b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-all_PN_KC_block.json
new file mode 100644
index 0000000..b730c33
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-all_PN_KC_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "3-131101-all_PN_KC_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/3-131101-calyx_PN_KC_contact_block.json b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-calyx_PN_KC_contact_block.json
new file mode 100644
index 0000000..1c016af
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-calyx_PN_KC_contact_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "3-131101-calyx_PN_KC_contact_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/3-131101-frozen_reference.json b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-frozen_reference.json
new file mode 100644
index 0000000..a4492b8
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-frozen_reference.json
@@ -0,0 +1,12 @@
+{
+  "declared_weight_scope_exact": true,
+  "prior_exact": {
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+    "events": true,
+    "final_g": true,
+    "final_v": true,
+    "trace": true,
+    "watched_states": true
+  },
+  "trial": "3-131101-frozen_reference"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/3-131101-whole_PN_output_block.json b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-whole_PN_output_block.json
new file mode 100644
index 0000000..b608fa8
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/3-131101-whole_PN_output_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "3-131101-whole_PN_output_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/4-131101-all_PN_KC_block.json b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-all_PN_KC_block.json
new file mode 100644
index 0000000..d3cbb46
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-all_PN_KC_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "4-131101-all_PN_KC_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/4-131101-calyx_PN_KC_contact_block.json b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-calyx_PN_KC_contact_block.json
new file mode 100644
index 0000000..54fa3ff
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-calyx_PN_KC_contact_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "4-131101-calyx_PN_KC_contact_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/4-131101-frozen_reference.json b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-frozen_reference.json
new file mode 100644
index 0000000..ef03395
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-frozen_reference.json
@@ -0,0 +1,12 @@
+{
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+  "prior_exact": {
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+    "final_v": true,
+    "trace": true,
+    "watched_states": true
+  },
+  "trial": "4-131101-frozen_reference"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/4-131101-whole_PN_output_block.json b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-whole_PN_output_block.json
new file mode 100644
index 0000000..8ea658c
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/4-131101-whole_PN_output_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "4-131101-whole_PN_output_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/5-131101-all_PN_KC_block.json b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-all_PN_KC_block.json
new file mode 100644
index 0000000..b0df240
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-all_PN_KC_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "5-131101-all_PN_KC_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/5-131101-calyx_PN_KC_contact_block.json b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-calyx_PN_KC_contact_block.json
new file mode 100644
index 0000000..3804032
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-calyx_PN_KC_contact_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "5-131101-calyx_PN_KC_contact_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/5-131101-frozen_reference.json b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-frozen_reference.json
new file mode 100644
index 0000000..50497af
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-frozen_reference.json
@@ -0,0 +1,12 @@
+{
+  "declared_weight_scope_exact": true,
+  "prior_exact": {
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+    "trace": true,
+    "watched_states": true
+  },
+  "trial": "5-131101-frozen_reference"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/5-131101-whole_PN_output_block.json b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-whole_PN_output_block.json
new file mode 100644
index 0000000..9e33963
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/5-131101-whole_PN_output_block.json
@@ -0,0 +1,4 @@
+{
+  "declared_weight_scope_exact": true,
+  "trial": "5-131101-whole_PN_output_block"
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/final-integrity.json b/registry/phase4ab-terminal-scope/evidence/regression/final-integrity.json
new file mode 100644
index 0000000..a718a97
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/final-integrity.json
@@ -0,0 +1,34 @@
+{
+  "original": {
+    "checked": 230239,
+    "exclusions": [
+      ".cache",
+      ".git",
+      ".mypy_cache",
+      ".pytest_cache",
+      ".venv",
+      "__pycache__",
+      "node_modules",
+      "venv"
+    ],
+    "meaning": "All original listed bytes checked; only newly named stage outputs are additions.",
+    "mismatches": [],
+    "new_stage_additions_allowed": true,
+    "pass": true,
+    "reference_sha256": "6f186112e6102f2f7969de7442fa7ee4432200a3678586cfc4e10c490b31bca4"
+  },
+  "prior_experiment": {
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+    "checksums_sha256": "a69b2511689207b0d9ddbe2fabce3be71908f457bb898e3b685a213a796a272a",
+    "manifest_sha256": "6d75567af2a6c0993d4fc08e272814910c19fa9602811cfacd1ebc4ba76bc737",
+    "mismatches": [],
+    "pass": true
+  },
+  "prior_model": {
+    "checked": 12,
+    "checksums_sha256": "55dc418f2d62be04601af33cbd8789578447e6a2289d3a581dc713cbb7466a25",
+    "manifest_sha256": "9120685eb02dc2bd3b38d42b2ade1f38f6bbc2a1ec269fd4d555cead2d628277",
+    "mismatches": [],
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+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/five-frozen-trials.json b/registry/phase4ab-terminal-scope/evidence/regression/five-frozen-trials.json
new file mode 100644
index 0000000..fc6ec82
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/five-frozen-trials.json
@@ -0,0 +1,62 @@
+{
+  "oracle": "frozen deterministic-v2",
+  "original_v1_preserved": true,
+  "pass": true,
+  "trials": [
+    {
+      "exact": {
+        "counts": true,
+        "g": true,
+        "neuron_idx": true,
+        "step": true,
+        "v": true
+      },
+      "trial": "auditory-10hz",
+      "wall_seconds": 2.6707512350112665
+    },
+    {
+      "exact": {
+        "counts": true,
+        "g": true,
+        "neuron_idx": true,
+        "step": true,
+        "v": true
+      },
+      "trial": "auditory-100hz",
+      "wall_seconds": 5.058842792001087
+    },
+    {
+      "exact": {
+        "counts": true,
+        "g": true,
+        "neuron_idx": true,
+        "step": true,
+        "v": true
+      },
+      "trial": "olfactory-50hz",
+      "wall_seconds": 5.067613077990245
+    },
+    {
+      "exact": {
+        "counts": true,
+        "g": true,
+        "neuron_idx": true,
+        "step": true,
+        "v": true
+      },
+      "trial": "mechanosensory-50hz",
+      "wall_seconds": 5.076028995012166
+    },
+    {
+      "exact": {
+        "counts": true,
+        "g": true,
+        "neuron_idx": true,
+        "step": true,
+        "v": true
+      },
+      "trial": "gustatory-50hz",
+      "wall_seconds": 5.056191121999291
+    }
+  ]
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/fixed-event-replay.json b/registry/phase4ab-terminal-scope/evidence/regression/fixed-event-replay.json
new file mode 100644
index 0000000..376423a
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/fixed-event-replay.json
@@ -0,0 +1,4 @@
+{
+  "baseline_exact_neurons": 11,
+  "terminal_nonKC_arrivals_exact": true
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/preflight.json b/registry/phase4ab-terminal-scope/evidence/regression/preflight.json
new file mode 100644
index 0000000..a718a97
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/preflight.json
@@ -0,0 +1,34 @@
+{
+  "original": {
+    "checked": 230239,
+    "exclusions": [
+      ".cache",
+      ".git",
+      ".mypy_cache",
+      ".pytest_cache",
+      ".venv",
+      "__pycache__",
+      "node_modules",
+      "venv"
+    ],
+    "meaning": "All original listed bytes checked; only newly named stage outputs are additions.",
+    "mismatches": [],
+    "new_stage_additions_allowed": true,
+    "pass": true,
+    "reference_sha256": "6f186112e6102f2f7969de7442fa7ee4432200a3678586cfc4e10c490b31bca4"
+  },
+  "prior_experiment": {
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+    "checksums_sha256": "a69b2511689207b0d9ddbe2fabce3be71908f457bb898e3b685a213a796a272a",
+    "manifest_sha256": "6d75567af2a6c0993d4fc08e272814910c19fa9602811cfacd1ebc4ba76bc737",
+    "mismatches": [],
+    "pass": true
+  },
+  "prior_model": {
+    "checked": 12,
+    "checksums_sha256": "55dc418f2d62be04601af33cbd8789578447e6a2289d3a581dc713cbb7466a25",
+    "manifest_sha256": "9120685eb02dc2bd3b38d42b2ade1f38f6bbc2a1ec269fd4d555cead2d628277",
+    "mismatches": [],
+    "pass": true
+  }
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/restored.json b/registry/phase4ab-terminal-scope/evidence/regression/restored.json
new file mode 100644
index 0000000..0c05423
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/restored.json
@@ -0,0 +1,6 @@
+{
+  "APL_matrices": true,
+  "base": true,
+  "frozen_effective_weights": true,
+  "raw": true
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/run-start.json b/registry/phase4ab-terminal-scope/evidence/regression/run-start.json
new file mode 100644
index 0000000..cac7af5
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/run-start.json
@@ -0,0 +1,23 @@
+{
+  "ComfyUI_queues": [
+    {
+      "pending": 0,
+      "port": 8188,
+      "running": 0
+    },
+    {
+      "pending": 0,
+      "port": 8189,
+      "running": 0
+    },
+    {
+      "pending": 0,
+      "port": 8190,
+      "running": 0
+    }
+  ],
+  "device": "NVIDIA GeForce RTX 4090",
+  "free_VRAM": 12494438400,
+  "timestamp_utc": "2026-09-29T16:16:57.370037+00:00",
+  "total_VRAM": 50864390144
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/regression/unit-tests.json b/registry/phase4ab-terminal-scope/evidence/regression/unit-tests.json
new file mode 100644
index 0000000..1c17f9f
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/regression/unit-tests.json
@@ -0,0 +1,12 @@
+{
+  "finite": true,
+  "fuzz_cases": 10000,
+  "fuzz_seed": 41337,
+  "input_nonmutation": true,
+  "never_sign_flip_or_amplify": true,
+  "pass": true,
+  "source_sha256": "971136a667367a84cfc50ebc3fa73a749eddb8b8e1ca6931708ba67bfc12f0c1",
+  "unit_tests": 6,
+  "unittest_log": "test_duplicates_rejected (test_scope.ScopeTests) ... ok\ntest_existing_edge_only (test_scope.ScopeTests) ... ok\ntest_invalid_partition_rejected (test_scope.ScopeTests) ... ok\ntest_partial_and_full (test_scope.ScopeTests) ... ok\ntest_roi_and_side_not_guessed (test_scope.ScopeTests) ... ok\ntest_zero_identity_and_nonmutation (test_scope.ScopeTests) ... ok\n\n----------------------------------------------------------------------\nRan 6 tests in 0.017s\n\nOK\n",
+  "zero_identity_bitwise": true
+}
diff --git a/registry/phase4ab-terminal-scope/evidence/replay/fixed-event-scope.csv b/registry/phase4ab-terminal-scope/evidence/replay/fixed-event-scope.csv
new file mode 100644
index 0000000..6563dba
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/evidence/replay/fixed-event-scope.csv
@@ -0,0 +1,45 @@
+condition,neuron_idx,arrival_unchanged,arrival_L1_difference,conditional_late_spikes,all_other_recorded_events_and_APL_fixed,whole_brain_causality_claim
+frozen_reference,30,True,0.0,187,True,False
+calyx_PN_KC_contact_block,30,True,0.0,187,True,False
+all_PN_KC_block,30,True,0.0,187,True,False
+whole_PN_output_block,30,False,2603.4250798225403,186,True,False
+frozen_reference,179,True,0.0,164,True,False
+calyx_PN_KC_contact_block,179,True,0.0,164,True,False
+all_PN_KC_block,179,True,0.0,164,True,False
+whole_PN_output_block,179,False,2433.4745279848576,159,True,False
+frozen_reference,484,True,0.0,194,True,False
+calyx_PN_KC_contact_block,484,True,0.0,194,True,False
+all_PN_KC_block,484,True,0.0,194,True,False
+whole_PN_output_block,484,False,2778.325125724077,193,True,False
+frozen_reference,1197,True,0.0,228,True,False
+calyx_PN_KC_contact_block,1197,True,0.0,228,True,False
+all_PN_KC_block,1197,True,0.0,228,True,False
+whole_PN_output_block,1197,False,233827.83066305518,227,True,False
+frozen_reference,1381,True,0.0,228,True,False
+calyx_PN_KC_contact_block,1381,True,0.0,228,True,False
+all_PN_KC_block,1381,True,0.0,228,True,False
+whole_PN_output_block,1381,False,263067.20497968793,227,True,False
+frozen_reference,1511,True,0.0,228,True,False
+calyx_PN_KC_contact_block,1511,True,0.0,228,True,False
+all_PN_KC_block,1511,True,0.0,228,True,False
+whole_PN_output_block,1511,False,247104.5574080348,227,True,False
+frozen_reference,1644,True,0.0,218,True,False
+calyx_PN_KC_contact_block,1644,True,0.0,218,True,False
+all_PN_KC_block,1644,True,0.0,218,True,False
+whole_PN_output_block,1644,False,27596.52651181817,216,True,False
+frozen_reference,6065,True,0.0,164,True,False
+calyx_PN_KC_contact_block,6065,True,0.0,164,True,False
+all_PN_KC_block,6065,True,0.0,164,True,False
+whole_PN_output_block,6065,False,6536.750062584877,152,True,False
+frozen_reference,6842,True,0.0,171,True,False
+calyx_PN_KC_contact_block,6842,True,0.0,171,True,False
+all_PN_KC_block,6842,True,0.0,171,True,False
+whole_PN_output_block,6842,False,5408.699882417917,162,True,False
+frozen_reference,82312,True,0.0,60,True,False
+calyx_PN_KC_contact_block,82312,False,13211.275120049715,0,True,False
+all_PN_KC_block,82312,False,13676.575129687786,0,True,False
+whole_PN_output_block,82312,False,13676.575129687786,0,True,False
+frozen_reference,133666,True,0.0,213,True,False
+calyx_PN_KC_contact_block,133666,True,0.0,213,True,False
+all_PN_KC_block,133666,True,0.0,213,True,False
+whole_PN_output_block,133666,False,14746.32684147358,210,True,False
diff --git a/registry/phase4ab-terminal-scope/seal-verification.json b/registry/phase4ab-terminal-scope/seal-verification.json
new file mode 100644
index 0000000..fca2888
--- /dev/null
+++ b/registry/phase4ab-terminal-scope/seal-verification.json
@@ -0,0 +1,16 @@
+{
+  "experiments/phase4ab-terminal-scope": {
+    "checked": 199,
+    "checksums_sha256": "d83926a3055d9f9ca471ceba328076d7ceba883f267468750914080733e95e31",
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+    "mismatches": [],
+    "pass": true
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+  "models/male-cns-lif/terminal-scope-diagnostic-v1": {
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+    "checksums_sha256": "92a03195cb41863027fd0397ad3811248354a5d3f2e91ffa2c297eba62dc2821",
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+    "mismatches": [],
+    "pass": true
+  }
+}