R12 SD-CST Complete Physical-Record Front-End Preregistration

Status: closed and rejected under the frozen gates; sole job 694199 completed cleanly on H100 evc37. Full result: R12_SD_CST_COMPLETE_PHYSICAL_RECORD_BUS_RESULT.md

Source contract: exact architecture, pilot, tests, job, preregistration, and ledger commit 6294ea90f8b9e308edde9cad4d4b276c729961ae. No seed or output existed at that receipt. After source push, raw 64-bit beacon and sole scientific seed were both 4564290739472553435 (already below 2^63).

The frozen run reaches 100% held-out query, query pointer, and event pointer, but only 5.15% binding pointer, 0% initial-occurrence pointer, 15.0% initial state, and 13.45% complete packet. The decision is reject_or_revise_complete_local_front_end; no fresh board is authorized by this result.

Parent compiler: retained independent-assignment Physical-Record Write Bus, checkpoint SHA-256 89ab7d7417918e72da60028e6d5936908a3ee29c0981f5fdac9dc385c3099419

Claim class: local-front-end completion gate; no fresh generalization, native reasoning, architecture novelty, or Shohin promotion claim

1. Why this gate is necessary

Job 694136 establishes perfect physical-record event compilation on 48,000 fit and 8,000 held-out consumed renderer views. However, that version still delegates declaration/initial-state and late-query parsing to the old frozen global parent. A fresh renderer board could therefore fail because inherited global interfaces do not recognize new declaration or query language, rather than because physical-record factorization fails.

The fresh-board candidate must be source-facing through one coherent local contract before any scored bytes are generated or read.

2. Fixed architecture

The retained independent-assignment record bus remains byte-identical and frozen. Ten new local_* tensors add:

1. six declaration-local pointer queries: three canonical binding roles and three initial-order occurrences;
2. one declaration-query projection over the already-trained local token memory;
3. one local late-query selector with query/key projections;
4. one position-free raw-byte value projection; and
5. one normalization and three-class query head.

Declaration pointers are computed inside every physical record and mixed only by the model's retained declaration-role probability. Their content fingerprints feed the frozen matcher and six-way initial permutation scorer. The query is encoded as one bounded local record with the shared retained line encoder; contextual state may choose a byte, but the value classifier receives only the selected raw-byte value projection.

The complete compiler does not call the inherited global source encoder or orbit encoder for either program or query compilation. A test replaces both methods with raising sentinels and the complete program/query forward still passes.

3. Frozen ownership and parameter certificate

Only the ten local_* names train in this gate. The 88 retained record_* tensors, joint parent, fingerprint matcher, categorical tape/executor, motor, reader, and Shohin trunk remain frozen under one excluded-state digest.

The historical 150M contracts remain immutable. No parameter may be added to this gate after source freeze.

4. Fixed data and optimization

The gate reads only the already-consumed projected-v2 training JSONL SHA-256 b7756dbf8d4401dbc5fb897dee53f68758e27200b1ce0d2387631f2f0205ec25. It reuses the fixed 12,000-semantic even-parity fit and disjoint 2,000-semantic odd-parity heldout partitions. Development, confirmation, answer, state, trajectory, and executor outputs remain unreachable.

Optimization is fixed to two epochs / 3,000 updates, family batch eight, AdamW lr 2e-4, betas (0.9, 0.95), weight decay 0.01, 100-update warmup, cosine decay, gradient clipping 1.0, and renderer consistency weight 1.0. Every inherited event loss remains in the objective but cannot update frozen record tensors. Initial heldout metrics are recorded before optimization.

5. Frozen gates

The gate passes only if:

1. minimum fit-renderer complete packet is at least 99%;
2. minimum heldout-renderer complete packet is at least 95%;
3. heldout initial state is at least 95%;
4. heldout query and query pointer are each at least 99%;
5. heldout declaration and initial-occurrence pointers are each at least 99%;
6. heldout event pointer is at least 99%;
7. heldout kind, identity, and amount are each at least 99%;
8. every excluded tensor is byte-identical;
9. complete deployed size is strictly below 200M; and
10. scored access is 0/0.

All gates passing yields retain_complete_local_front_end_for_fresh_board. Any failure yields reject_or_revise_complete_local_front_end. No threshold, parameter, epoch, or same-output retry may change after seed.

6. Honest boundary and next phase

A pass means only that every source-facing field can be compiled through bounded local evidence on already-consumed renderer factors. It does not test new language, names, distributions, recurrent state, answers, or reasoning.

Only a pass authorizes a separately committed board builder with fresh names, renderer families, train/development/sealed-confirmation bytes, access ledger, model-logit-only compiler outputs, source deletion, and the retained fixed executor. Existing development and confirmation remain permanently unavailable to this architecture.