diff --git a/tienshaoku.md b/tienshaoku.md
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@@ -101,6 +101,10 @@ user ---(User API)>>> execution engine ---(Engine API)>>> beacon node ---(Beacon
 
 ### 2025.02.10
 
+### 2025.02.11
+
+### 2025.02.12
+
 #### Execution Layer Spec
 
 - The Execution Layer focuses exclusively on executing the state transition function (STF). This role addresses two primary questions: