Technical Note
Deterministic Local Topology Capture for Gemma 4 31B-IT
Deterministic local topology capture on a bounded CPU surface.
What this proves
Gemma 4 31B-IT runs on a local CPU path on real weights. Hidden-state and topology capture are non-perturbing against a frozen compute baseline.
Canonical topology.v2
artifacts are emitted under a binary admission rule and reproduce
bit-for-bit across independent capture runs.
One bounded observation is extracted from the attention-edge artifact as an illustration that the admitted surface is analyzable.
What this does not prove
Cross-device or cross-backend parity (browser, WebGPU, Metal).
Broad mechanistic-interpretability or causal claims about model internals.
Long-context or multi-token generalization beyond the bounded setups.
Claims about other model sizes, versions, or families.