# Project status

## Overall status

**CORE RESULTS COMPLETE — DOCUMENTATION HARMONIZED — MANUSCRIPT READY**

## Completed structural programme

- 175 SPARC galaxies prepared.
- 121-galaxy primary sample frozen.
- 4,840 complete STRUC-I κ-profile rows consolidated.
- 121 STRUC-PERC-I records consolidated.
- 121 multichannel galaxy structural fingerprints consolidated.
- Low-dimensional structural atlas and nearest-neighbour tables built.
- Direct chamber exports preserved in their canonical output locations.
- Gate B unchanged-ladder reproducibility completed with a decisive pass.
- Gate C representation-sensitivity mapping completed across four registered branches.

## Completed transfer programme

- Compact-signature held-out gravity transfer completed.
- Full-curve closure audit completed.
- Correct-versus-shuffled curve assignment tested.
- Channel decomposition completed.
- ρ identified as the strongest transfer-sensitive channel.

## Current scientific position

The project has established:

- reproducible galaxy-specific structural fingerprints;
- an organized multiscale structural atlas;
- meaningful physical-property alignment;
- measurable dependence on sampling, coverage, and baryonic preparation;
- separate persistence, fragmentation, and connectivity dimensions;
- retained galaxy identity in complete curves;
- a negative result for the tested static global transfer architecture;
- a positive next direction in local and regime-conditioned ρ analysis.

## Active next work

1. Build sampling and coverage response surfaces.
2. Propagate observational uncertainties through the full chamber pipeline.
3. Construct regime-controlled atlas views.
4. Create geometry-matched null ensembles.
5. Define normalized fingerprint coordinates.
6. Begin the structural-fingerprint manuscript from the completed core results.

## Completed questions

- Whether unchanged-ladder curves can distinguish galaxies: **yes**.
- Whether the atlas is organized: **yes**.
- Whether persistence equals connectivity: **no**.
- Whether representation changes move the fingerprint: **yes, strongly and measurably**.
- Whether the tested static global gravity model benefits from the fingerprints: **no**.

These completed answers define the next programme rather than diminish the present one.
