Close the backbone row: the prediction held

DINOv2-large, twice the depth of base and wider, leaves the shared count
at exactly 15 and moves the correlation by less than the segmentation
noise floor. Four vision-side interventions now raise the vision field's
own rank and leave the intersection alone.

The cheap tier of the register is exhausted. What remains is a corpus
chosen for naturally wide overlap, promoted to the central bet, and the
unbalanced formulation, promoted to the critical path since such a
corpus is unlikely to arrive in bijection.

Co-Authored-By: Claude <noreply@anthropic.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/RANK_RESULTS.md b/RANK_RESULTS.md
index 2998e47..adaee21 100644
--- a/RANK_RESULTS.md
+++ b/RANK_RESULTS.md
@@ -85,6 +85,15 @@ side, all measured at matched width:
 | 6 spectral segments | 0.692 | 15 |
 | 16 spectral segments | 0.679 | 14 |
 | annotated region boxes (oracle) | 0.703 | 15 |
+| DINOv2-base, 12 layers, 768-dim | 0.731 | 15 |
+| DINOv2-large, 24 layers, 1024-dim | 0.709 | 15 |
+
+The backbone row was a pre-registered prediction rather than a hope: the width
+had failed to respond to every other vision-side change, so a larger encoder
+was predicted to leave it alone. **Doubling the depth and widening the
+representation leaves the shared count at exactly 15** and moves the
+correlation by less than the segmentation noise floor, in the wrong direction.
+The prediction survives, and the row closes on a measurement.
 
 Handing the pipeline ground-truth boxes buys one direction over unsupervised
 segmentation and nothing over using fewer segments. This confirms from a new