diff --git a/src/fetch/object_id.rs b/src/fetch/object_id.rs
index e48d639..7dab979 100644
--- a/src/fetch/object_id.rs
+++ b/src/fetch/object_id.rs
@@ -146,6 +146,10 @@ where
         Object::read_from_id(*id, data).await
     }
 
+    /// Fetch object from origin instance over HTTP, then verify and parse it.
+    /// 
+    /// Uses Box::pin to wrap futures to reduce stack size and avoid stack overflow when
+    /// when fetching objects recursively.
     async fn dereference_from_http(
         &self,
         data: &Data<<Kind as Object>::DataType>,