# HCGM Phase Archive: 2026-06-26

> Status: archived phase evidence.
> Boundary: this directory is not a first-read surface.
> Ontology boundary, 2026-07-16: formulas and claims in this archive predate the
> active actual-token -> point/Gaussian/Cauchy abduction -> outcome-generation
> contract. They are evidence of prior reasoning, not current notation. Use
> [`../../UNIT_MECHANISM_LEARNING.md`](../../UNIT_MECHANISM_LEARNING.md) as source.
> Relocation boundary, 2026-07-16: references below or in archived phase files
> to `paper/arxiv-hcgm-regression/` name a retired historical entity. The active
> flagship source is `paper/learning-discoscm/`; old tracked artifacts are
> recoverable from Git history and are not current manuscript truth.

This directory keeps the June 26 phase material that was useful for evidence,
verification, dry-runs, and handoff, but too noisy for the project root.

Use it for archaeology:

```text
README_BEFORE_PRUNE_2026-06-27.md
  The long root README before the 2026-06-27 visibility prune.

RESTART_HERE.md
  The long restart packet before the compact restart note.

PHASE_*.md
  Closeout, verification, commit, pause-readiness, and dry-run evidence.

*_AUDIT_*.md
  Alignment and completion-gap guardrails.

F1_AGENT_DRY_RUN_2026-06-26.md
  Agent preflight for the F1 gate. This does not count as real feedback.

FOUR_ENTRANCES_OWNER_REVIEW.md
  Owner-review packet that led to the current gate.

P1_PAPER_MOTIVATION_PROMOTION.md
  Applied P1 paper-promotion record.
```

Current action is still at the root:

```text
../../NEXT_GROW_DECISION.md
../../F1_READER_REQUEST_2026-06-26.md
../../FOUR_ENTRANCES_READER_FEEDBACK.md
```