diff --git a/src/ResourceService/Controller/ResourceController.php b/src/ResourceService/Controller/ResourceController.php
index d6945827..2f1a6b9c 100644
--- a/src/ResourceService/Controller/ResourceController.php
+++ b/src/ResourceService/Controller/ResourceController.php
@@ -33,21 +33,19 @@ public function get(Application $app, Request $request, $id, $child)
 
     /**
      * Resource POST route controller. takes $id (valid UUID or empty) for the parent resource as first value to match
-     * takes 'rx' and/or 'checksum' as optional query arguments
+     * takes 'rx' as an optional query arguments
      *
      * @see https://wiki.duraspace.org/display/FEDORA4x/RESTful+HTTP+API (Create new resources within a LDP container)
      */
     public function post(Application $app, Request $request, $id)
     {
         $tx = $request->query->get('tx', "");
-        $checksum = $request->query->get('checksum', "");
         try {
             $response = $app['api']->createResource(
                 $app->escape($id),
                 $request->getContent(),
                 $request->headers->all(),
-                $tx,
-                $checksum
+                $tx
             );
         } catch (\Exception $e) {
             $app->abort(
@@ -69,21 +67,19 @@ public function post(Application $app, Request $request, $id)
     /**
      * Resource PUT route. takes $id (valid UUID or empty) for the resource to be update/created
      * as first value to match, optional a Child resource relative path
-     * takes 'rx' and/or 'checksum' as optional query arguments
+     * takes 'rx' as an optional query arguments
      *
      * @see https://wiki.duraspace.org/display/FEDORA4x/RESTful+HTTP+API (Create a resource with a specified path...)
      */
     public function put(Application $app, Request $request, $id, $child)
     {
         $tx = $request->query->get('tx', "");
-        $checksum = $request->query->get('checksum', "");
         try {
             $response = $app['api']->saveResource(
                 $app->escape($id) . '/' . $child,
                 $request->getContent(),
                 $request->headers->all(),
-                $tx,
-                $checksum
+                $tx
             );
         } catch (\Exception $e) {
             $app->abort(503, '"Chullo says Fedora4 Repository is Not available"');
@@ -117,7 +113,7 @@ public function patch(Application $app, Request $request, $id, $child)
 
     /**
      * Resource DELETE route controller. takes $id (valid UUID) for the parent resource as first value to match
-     * takes 'rx' and/or 'checksum' as optional query arguments
+     * takes 'rx' as an optional query arguments
      * @see https://wiki.duraspace.org/display/FEDORA40/RESTful+HTTP+API#RESTfulHTTPAPI-RedDELETEDeletearesource
      * @todo check for transaction and create one if empty.
      * @todo test with the force.