# Research Changelog

## 2026-07-17 - Protocol freeze

- Defined the primary and supporting claims before running new code.
- Prespecified the 2 x 2 entropy/dispersion intervention.
- Separated exact, tabular, and finite-Transformer evidence.
- Declared that prior v2.2-v6 numbers will not be reused without provenance.

## 2026-07-17 - Submission-candidate implementation

- Implemented exhaustive reference-measure factorization, gap, audit,
  pathwise attribution, and KL-regret checks.
- Added tabular support-gating and model-error experiments.
- Added a finite typed-token causal Transformer and exact-prefix evaluation.
- Wrote a new English canonical manuscript around the frozen primary claim.
- Replaced the earlier co-varying entropy experiment with an independent
  entropy/continuation-dispersion factorial design.
- Before the full neural results were produced, recorded that Transformer
  training is shared across dispersion cells. This is an exact computational
  reuse: the dispersion intervention changes rewards but not the observational
  token distribution or any input to teacher forcing.
