--- a/Core/Toolbox.h	Wed Nov 09 16:12:47 2016 +0100
+++ b/Core/Toolbox.h	Wed Nov 09 16:16:26 2016 +0100
@@ -60,6 +60,18 @@
 #  define ORTHANC_SANDBOXED  0
 #endif
 
+
+/**
+ * NOTE: GUID vs. UUID
+ * The simple answer is: no difference, they are the same thing. Treat
+ * them as a 16 byte (128 bits) value that is used as a unique
+ * value. In Microsoft-speak they are called GUIDs, but call them
+ * UUIDs when not using Microsoft-speak.
+ * http://stackoverflow.com/questions/246930/is-there-any-difference-between-a-guid-and-a-uuid
+ **/
+
+
+
 namespace Orthanc
 {
   typedef std::vector<std::string> UriComponents;
@@ -195,6 +207,12 @@
     unsigned int GetJsonUnsignedIntegerField(const ::Json::Value& json,
                                              const std::string& key,
                                              unsigned int defaultValue);
+
+    std::string GenerateUuid();
+
+    bool IsUuid(const std::string& str);
+
+    bool StartsWithUuid(const std::string& str);
   }