# UNNS Gravity Bridge v0.1 — external transfer validation

This project is complete and forms the external transfer module of `UNNS_GALAXY_STRUCTURE_AND_VALIDATION_v0_3`.

## Result state

```
compact registered bridge verdict     NON_GENERALIZING_SIGNAL
full-curve audit verdict              WEAK_FOLD_DEPENDENT_FULL_CURVE_SIGNAL
static global architecture            COMPLETED
leading transfer-sensitive channel    ρ(κ)
```

## What the experiment established

The bridge separates three facts:

```
galaxy identity is present in the curves
identity does not automatically equal target prediction
transfer depends on representation, scale, and regime
```

## Compact-signature result

```
M2 galaxy-balanced RMSE       0.188389
M-IP galaxy-balanced RMSE     0.194554
relative change               -3.272%
```

The static compact chamber model fitted the known sample more closely but did not generalize better to unseen galaxies.

## Full-curve result

```
aggregate relative improvement    0.435%
positive folds                    1 / 5
bootstrap interval                crossed zero
```

Correct galaxy-to-curve assignment outperformed shuffled assignment. The curves therefore retained genuine galaxy identity, even though the combined static global predictor did not use that identity consistently.

## Channel result

```
ρ(κ)    +1.142% aggregate; 4 / 5 positive folds
Aκ      +0.457% aggregate; 3 / 5 positive folds
ν       -1.516% aggregate; 1 / 5 positive folds
```

ρ is the leading candidate for a new local, transition-based, or regime-conditioned experiment.

## Main entry points

- `STATUS.md`
- `TRANSFER_VALIDATION_SYNTHESIS.md`
- `chambers/GRAV_BRIDGE_I_v0_1_0/outputs/registered_run/GRAV_BRIDGE_I_RESULT_RECORD.md`
- `chambers/GRAV_BRIDGE_I_v0_1_0/GRAV_BRIDGE_I_1_FULL_CURVE_AUDIT/outputs/reports/GRAV_BRIDGE_I_1_RESULT_RECORD.md`
