1 files changed, 12 insertions, 0 deletions
diff --git a/src/script/standard.h b/src/script/standard.h
index ead79b82a2..961b214c89 100644
--- a/src/script/standard.h
+++ b/src/script/standard.h
@@ -6,13 +6,25 @@
 #ifndef H_BITCOIN_SCRIPT_STANDARD
 #define H_BITCOIN_SCRIPT_STANDARD
 
+#include "key.h"
 #include "script/script.h"
 #include "script/interpreter.h"
 
+#include <boost/variant.hpp>
+
 #include <stdint.h>
 
 class CScript;
 
+/** A reference to a CScript: the Hash160 of its serialization (see script.h) */
+class CScriptID : public uint160
+{
+public:
+    CScriptID() : uint160(0) {}
+    CScriptID(const CScript& in);
+    CScriptID(const uint160& in) : uint160(in) {}
+};
+
 static const unsigned int MAX_OP_RETURN_RELAY = 40;      // bytes
 
 // Mandatory script verification flags that all new blocks must comply with for