diff --git a/src/main/java/org/gcube/datacatalogue/common/Constants.java b/src/main/java/org/gcube/datacatalogue/common/Constants.java
index 574d851..bad15f1 100644
--- a/src/main/java/org/gcube/datacatalogue/common/Constants.java
+++ b/src/main/java/org/gcube/datacatalogue/common/Constants.java
@@ -56,7 +56,9 @@ public class Constants {
 	// for connected records
 	public static final String CONNECTED_CUSTOM_KEY = "connected";
 	public static final String CONNECTED_JSON_KEY = "Connected Record";
-	
+	public static final String CONNECTED_RECORD_SEMANTIC_IDENTIFIER_JSON_KEY = "semantic_identifier";
+	public static final String CONNECTED_RECORD_SHORT_NAME_JSON_KEY = "short_name";
+	public static final String CONNECTED_RECORD_KNOWLEDGE_BASE_ID_JSON_KEY = "knowledge_base_id";
 
 	// stock record
 	public static final String STOCK_NAME_CUSTOM_KEY = "Stock Name";