R12 S4 Hard-Island / Soft-Interface Result
Decision
Confirmed. Promote S4 v5 as the best bounded native S4 reasoning baseline.
All preregistered development and confirmation gates pass. The hash-bound promotion manifest is
artifacts/r12/s4_hard_island_soft_interface_v5.promoted.json.
Custody
- Source/preregistration freeze: commit
e9a962b. - Board freeze: commit
2101832. - Production development seed:
14465012970954709091. - Board: 2,048 rows / 512 matched groups, depths 3--8, maximum 340 tokens.
- Data SHA-256:
4d43b050892fc26a712e2c97414e84da3721c7949b98d8862b239e6b2f051c7a. - Board report SHA-256:
8b9461bc86771f50b4f72b58bda7e09286ab0ac3830175cc0f28540279db434f. - Safe archive SHA-256:
eec8ec5e277dd39791ce1816d175d979f465363718dcf9a1d429b242a151efe1. - Every exact/13-gram/name/factor/roster-token-multiset gate passes against source data and closed v2--v4 boards.
- Development access: one. Confirmation access: zero.
- Serial baseline/treatment/control/assessor job:
693177, completed onevc24in 83 seconds.
Qualified development result
| Arm | Count | Roster | Query | Exact program | Exact state | Correct answer |
|---|---|---|---|---|---|---|
| Frozen S4 v1 | 100% | 93.70% strict | 93.70% strict | 1919/2048 = 93.70% | 93.70% | 93.70% |
| S4 v5 hybrid | 100% | 2022/2048 = 98.73% | 100% | 1985/2048 = 96.92% | 1996/2048 = 97.46% | 2009/2048 = 98.10% |
| V5 + roster rotation | 100% | unchanged | 100% | 0/2048 | 0.68% | 5.42% |
| V5 + event-region rotation | 100% | unchanged | 100% | 0/2048 | 13.67% | 26.51% |
V5 improves exact programs by 3.22 percentage points absolute over its identical-board v1 baseline. Exact program accuracy by depth 3--8 is 97.38%, 97.38%, 98.24%, 97.06%, 96.76%, and 94.71%; every preregistered depth gate passes. Surface-family accuracy is 96.68--97.46%.
The two zero-program interventions establish that neither hard islands nor set carriers are merely diagnostics. The successful decomposition is: model-owned kind clock -> monotone local region -> complete hard entity/literal islands -> vocabulary-aligned soft roster identity -> soft query -> locked exact S3 execution. No v5 parameter was trained.
Baseline, treatment, assessment, and log SHA-256 values are respectively
103cc7e07d6be5bb355e8944ffc565c9cf7ba06941413044aac9546f47d87986,
ca3cb11f0eb6871e1ce2b64efb94a380deffdbbbb72ef0064a164b5d95216ece,
41a2dd2eab37c1976803d49e36f1a4ae35b62e8568ebefc3159c118383ab2eb5, and
c4e874e16c469387adeb5c66702d3174b32ac3fccea560624dcb042a8f8a7ac7. The assessor decision is
qualify_s4_v5_for_fresh_confirmation.
Confirmation
The sole disjoint confirmation board uses seed 14809014609581254328, data SHA
b16534b3c41d21737370f0eb852cb6c53d75e81d661d6d9592927709551a08cf, and report SHA
ce0e2671c8dcd07b5b789798da0325b94066087ce4222082267919f57afdb261. Job 693178 completes the
unchanged serial protocol on evc24.
| Confirmation arm | Exact program | Exact state | Correct answer |
|---|---|---|---|
| Frozen S4 v1 | 1913/2048 = 93.41% | 93.41% | 93.41% |
| S4 v5 hybrid | 2003/2048 = 97.80% | 2015/2048 = 98.39% | 2020/2048 = 98.63% |
| V5 + roster rotation | 0% | 0.68% | 3.76% |
| V5 + event-region rotation | 0% | 12.50% | 26.12% |
Confirmation program accuracy by depth 3--8 is 97.09%, 98.55%, 98.82%, 96.18%, 98.82%, and
97.35%. Surface accuracy is 97.66--98.05%. The assessor records
confirm_s4_v5_hard_island_soft_interface at SHA-256
41fb41a7aa70139c5a05c321b949bb5ad245e26d1506445910cdbb542e34b407.
Confirmation baseline, treatment, and log SHA-256 values are
0293aeeca82660a827c6197fd30b84512d66084925b364cf64152bc39442aaa6,
d4d1b2b928aec723f7421147d4d14b386ebcbd014db4d2d2db83636b989c44f0, and
cb2d179110c4ef4c31f01d7f1a99748d11ad0235e76d1c521c37f9583a6341b2.
Claim boundary
This is a confirmed known-atom parser/executor result and promoted bounded baseline. It is not unseen operation semantics, open-ended planning, learned halt, free-form reasoning, public benchmark improvement, or a novelty claim.