diff --git a/03-DESIGN/01-to-be/51-the-registries-keep-what-is-named.md b/03-DESIGN/01-to-be/51-the-registries-keep-what-is-named.md
index a2c14905..09531c7c 100644
--- a/03-DESIGN/01-to-be/51-the-registries-keep-what-is-named.md
+++ b/03-DESIGN/01-to-be/51-the-registries-keep-what-is-named.md
@@ -142,7 +142,7 @@ the verb.
   objects template allows (design 25 § 12.1), and no lifetime, since that template keeps for good; the holder counts its
   fill against the cap its binding carries, never a number of its own. The holder itself drops a transfer with no part
   for 24 hours and deletes its parts (ADR 0611 §3), so an abandoned transfer does not stay. **Both are mesh-sdk's
-  `parts.Receiver`, shared by every holder** (ADR 0611 §3), never copied into a holder: an expiring key per open
+  `parts.Receiver`, shared by every holder** (ADR 0611 §3 for the drop, ADR 0627 for the shared receiving side), never copied into a holder: an expiring key per open
   transfer, in a state of the holder with a key lifetime, is armed when a transfer is opened or opened again, and its
   expiry (an event, never a timer) drops the transfer with its parts, or arms it again for the rest of the day if a
   part came; a key that cannot be written fails the opening loudly. The cap is read once from the binding's fill and