diff --git a/02-DECISIONS/0096-an-upstream-image-is-copied-between-registries.md b/02-DECISIONS/0096-an-upstream-image-is-copied-between-registries.md
index ac6a913..69265d6 100644
--- a/02-DECISIONS/0096-an-upstream-image-is-copied-between-registries.md
+++ b/02-DECISIONS/0096-an-upstream-image-is-copied-between-registries.md
@@ -54,7 +54,10 @@ A test raises a fake upstream registry serving an index over two platforms behin
 challenge, and a fake mesh registry that records what arrives: every blob of both platforms
 arrives once, two manifests and the index are put under their digests, the reference returned
 pins the index under the module's repository, and a second copy uploads nothing. A reference
-test reads names the way a runtime does.
+test reads names the way a runtime does. *Proven against the real thing the same day:* the genesis
+bed built the tool runtime through the mesh's builder with its node base copied out of the public
+hub into the mesh's registry by this code — after one finding the fake could not give: the builder
+ran on the default bridge, where loopback is not the machine, and now runs on the host network.
 
 ## References