diff --git a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
index 128b3a20..f47adfcf 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
@@ -287,3 +287,7 @@ names the principle that settles it, and is cited as "design 47 G A-n".
   already shows a delivery: its `DeliveryLine` gains `pipelines`, one row per module with its steps, `no run` where the
   runner's list answers none. A runner verb's old callers list does not refuse a module: from G no verb names its
   callers (§610), so the class's default holds.
+- **A-76** (§588, §568, A-73; principle 7) A reservation keeps the fingerprint of the catalog entry it was made from
+  (`versions.Source` gains it), so publish again reads that entry; the registry seat for an artifact is found from its
+  package ecosystem as the builder's seat hearing already maps it. A transport fault's class (`no responders`, `name
+  lookup`, `connection`, `deadline`) is the one the existing retake reads from the call's error (ADR 0664, ADR 0668).