R12 ER-TT Dual-Stream Train-Only Canary Result

Protocol: r12_er_dual_stream_train_only_canary_v1

Decision: reject v1 before fresh-board generation. No development or confirmation split was read.

Custody and provenance

• Source: 54476bcb02cc9d3f7388407fbe3700e92bfdbc28
• Deterministic post-commit seed: 5113128174248698871
• Seed derivation SHA-256: 46f57afbe522a3f7c36821ed3714dd178e1cc347fc306b13ea65d08f73ed3241
• Sole H100 job: 694800 on evc36
• Runtime: 11m21s, exit code zero
• Fit/probe: 10,000/2,000 disjoint old-training families, 40,000/8,000 rows
• Development/confirmation reads by this experiment: 0/0
• Complete/trainable/headroom parameters: 192,730,091 / 18,327,299 / 7,269,909

The probe-family overlap is zero. The fit/probe family-set hashes are 5042c110... and 16d86284....

Artifact hashes

Newton and local copies hash-match and are read-only.

Frozen result

Every cardinality-specific joint score is zero. The final relation-row loss is 1.526640, at chance for the mixed-cardinality task; witness-pointer loss is 31.415091.

The architecture did solve the construction target it was designed to solve: all hard packet fields and all hard pointers are exactly identical on 8,000/8,000 original versus neutral-namespace alpha recodes. This includes relations, declaration state, event binding, witness pointers, and every other field. Alpha equivariance is therefore established by construction, but useful routing is not.

Independent granular recomputation

The local audit reconstructed the exact deterministic probe split and compared the immutable prediction evidence with source-only targets.

Relation-cell accuracy by cardinality is 33.747%, 25.051%, 20.568%, and 16.315% at N=3,4,5,6, exactly the chance pattern. Every row emits three active rules, and 7,532/8,000 rows emit cardinality five. The occurrence queries have collapsed to a small number of structural positions rather than learning their distinct slots.

Failure localization and admitted diagnostic

The identity stream and exact equality are not the observed failure. The structural router receives a physical-to-semantic assignment, but v1 detached that assignment before the routed pointer loss. If the target semantic record initially receives negligible assignment mass, the source-position probability is clamped near zero; the pointer loss then cannot teach the role assignment that would make the target record reachable. Local occurrence queries collapse inside the wrong records.

V1.1 changes gradient topology and equality routing without changing capacity, data budget, or the under-200M system:

1. compute semantic assignment normally for packet heads;
2. recompute the numerically identical assignment from detached record features for the routing path;
3. allow pointer/equality gradients to train the shared role-assignment head;
4. continue blocking those gradients from the shared structural record encoder;
5. replace hard selected-symbol equality with exact equality marginalized over the complete learned route distributions; and
6. require a matched source-span oracle-route control to reach 100% identity transport through the same marginal equality operator.

The oracle receives only source compiler spans, never outcomes or scored data. It separates representational sufficiency of the identity bus from learned route acquisition and cannot authorize promotion. The learned soft-route arm retains every original capability and alpha-invariance threshold. V1 is closed and will not be rerun.

Marginal-route v1.1 result

Protocol: r12_er_dual_stream_train_only_canary_v1_1

Decision: reject before fresh-board generation. No development or confirmation split was read, and the frozen threshold is not relaxed.

• Source: 8419c74e161f41c704d324d2b6ad72ed5587035f
• Deterministic post-commit seed: 4412270997190025241
• Sole H100 job: 694909 on evc43
• Runtime: 9m06s, exit code zero
• Fit/probe: 10,000/2,000 disjoint training families, 40,000/8,000 rows
• Complete/trainable/headroom: 185,532,296 / 11,129,504 / 14,467,704
• Development/confirmation reads: 0/0

Every cardinality-specific joint gate passes; the minimum is N=6 at 1,749/2,056 = 85.068%. The witness-pointer gate is the sole failed gate.

Immutable artifact SHA-256 values are:

Residual localization

Independent recomputation from immutable evidence finds all 806 failed witness-pointer rows contain exactly one wrong occurrence. Individual pointer occurrences are 214,722/215,528 = 99.626% exact. The dominant failures are the second and third after-witness positions in the fourth rule. On representative failures, the correct occurrence is route rank two while an adjacent duplicate is rank one. Witness and relation failures overlap strongly but not perfectly: 7,054 rows have both exact, 585 have both wrong, 221 have only witness wrong, and 140 have only relation wrong.

This is no longer evidence that identity equality or the recurrent relation executor is missing. It is evidence that the alpha-invariant structural route does not reliably distinguish repeated occurrences inside longer physical records.

Admitted train-only repair

The occurrence-addressed marginal repair adds two learned, identity-free address components to the route: opaque-occurrence ordinal within the record and total opaque candidates in that record. Raw symbol bytes remain confined to the exact equality marginal. The repair adds 10,752 parameters, yielding 185,543,048 complete / 11,140,256 trainable / 14,456,952 headroom. It starts from the confirmed parent, never failed canary weights, and keeps the v1.1 data, 2,500-update budget, optimizer, thresholds, and 1/0/0 custody unchanged.

Before source freeze, 22 focused tests plus Ruff, byte compilation, shell syntax, a real-board alpha-recode equality check, a real-parent backward pass, full trainable-gradient coverage, and zero excluded-parent leakage pass. A single post-commit seed and single isolated H100 canary are authorized; no fresh board is authorized unless every unchanged gate passes.

Occurrence-addressed result

Protocol: r12_er_addressed_marginal_train_only_canary_v1

Decision: reject before fresh-board generation. Exact source 7601625f2cdc0a476f9383ce9773722f64760d17 precedes drand round 6305746, canonical payload SHA 8884bfe6..., derivation SHA c24770ac..., and seed 4775909816533321494. Sole job 694928 completed on H100 evc36 in 7m38s. Development/confirmation custody remains 0/0.

Cardinality-specific joint is 90.041%, 64.008%, 47.194%, and 43.606% for N=3,4,5,6. Four scientific gates fail. The parameter certificate remains 185,543,048 complete / 11,140,256 trainable / 14,456,952 headroom.

Artifact SHA-256 values are:

• checkpoint: 803a850af3f18a8138d6f5029f6c1d459b0f15fb6d0c42f3e0c407810108e4e3
• evidence: a2d8349bd6efcfc9eaca522661b24130529ad04fd08ab313ce20dbeeb3c35227
• report: 11d230a2d2c83bbf70997bbd2fd11189f6094d43fdd1717f2a7595e04d52b0f6

Independent reconstruction finds 3,240 witness-failed rows. Wrong-pointer counts per failed row range from one through six rather than the predecessor's single error. The dominant errors are adjacent ordinal swaps in after-witness positions, especially for cardinalities four through six. Endpoint ordinal embedding norm is 8.64 and ordinal rows six/seven have cosine 0.878; count embedding norm is 2.02. The address representation therefore became an entangled positional shortcut rather than a reliable tie-breaker.

The architecture/version is closed. A post-hoc scale ablation may read this same consumed training probe solely to separate ordinal dominance from count interaction. It has no optimizer and cannot authorize a fresh board, promotion, or any reasoning claim.

Closed-checkpoint scale audit

Read-only H100 job 694932 evaluates the immutable addressed endpoint on the same consumed probe with no optimizer. Report SHA-256 is d958cc0507fe85a489a3b85368f52ed67cfda6caf9fc5efc8d686216f28f6934.

Ordinal and count information are both necessary, and stronger ordinal signal helps rather than hurts. The failure comes from combining those embeddings with structural record/token memory before the shared key projection, not simply from excessive positional magnitude.

Factorized witness-route successor

The distinct successor preserves the v1.1 structural dot-product logits and adds a centered/bounded 14 x 12 x 14 residual with twelve zero-initialized role gates only to witness routes. Its indices are record candidate count, semantic witness role, and candidate ordinal. The route has 2,364 learned scalars; all non-witness routes are unchanged even when the table is nonzero. Complete/trainable/headroom is 185,534,660 / 11,131,868 / 14,465,340.

It starts from the reconstructed confirmed parent, never either rejected canary. The old train-only data, 2,500-update budget, optimizer, thresholds, alpha/oracle controls, and 1/0/0 custody remain exact. Twenty-four focused tests plus Ruff, byte compilation, shell syntax, real-row alpha invariance, real-parent gradient coverage, and zero excluded leakage pass before source freeze. All four same-seed arms fit and are atomically checkpointed before the probe is scored: treatment, residual-disabled baseline, content-disabled structural-only, and physical-record-rotated shuffled-address. Treatment must beat baseline and shuffled address by at least +0.5pp witness rows. Failure closes the route; passing authorizes only a fresh-board test.