diff --git a/workplans/INTERFACE-WP-0004-federation-acceptance.md b/workplans/INTERFACE-WP-0004-federation-acceptance.md
index 220bc86..4f4c7a1 100644
--- a/workplans/INTERFACE-WP-0004-federation-acceptance.md
+++ b/workplans/INTERFACE-WP-0004-federation-acceptance.md
@@ -11,6 +11,7 @@ origin: residual
 origin_ref: INTERFACE-WP-0003
 created: "2026-09-09"
 updated: "2026-09-09"
+state_hub_workstream_id: "cb0b8342-4b9a-5d73-876d-dc857f8aee8d"
 ---
 
 # Establish external federation acceptance and consumer adoption
@@ -25,6 +26,7 @@ plan records the remaining work without claiming control over peer backlogs.
 id: INTERFACE-WP-0004-T01
 status: todo
 priority: medium
+state_hub_task_id: "5111826f-b039-5fb3-a194-b5e00595c5b2"
 ```
 
 Prepare peer-review material from the mapping and federation reviews. Record
@@ -39,6 +41,7 @@ Done when accepted boundaries and their source records are recorded.
 id: INTERFACE-WP-0004-T02
 status: todo
 priority: medium
+state_hub_task_id: "b9c8cedd-9aa0-5243-b3b5-880a3f0da9c9"
 ```
 
 Use the Repo Manager example as review material; obtain a consumer-owned reference