diff --git a/scripts/admin/acl/create-authorization.sh b/scripts/admin/acl/create-authorization.sh
index cee395d97..887a1f9a0 100755
--- a/scripts/admin/acl/create-authorization.sh
+++ b/scripts/admin/acl/create-authorization.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --label LABEL                        Label of the authorization\n"
     printf "  --comment COMMENT                    Description of the authorization (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the authorization (optional)\n"
     printf "  --agent AGENT_URI                    URI of the agent (optional)\n"
@@ -72,11 +71,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -186,7 +180,6 @@ args+=("-t")
 args+=("text/turtle") # content type
 args+=("${container}${encoded_slug}/")
 
-turtle+="@prefix ldh:	<https://w3id.org/atomgraph/linkeddatahub#> .\n"
 turtle+="@prefix dh:	<https://www.w3.org/ns/ldt/document-hierarchy#> .\n"
 turtle+="@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .\n"
 turtle+="@prefix acl:	<http://www.w3.org/ns/auth/acl#> .\n"
@@ -203,9 +196,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${label}\" .\n"
 if [ -n "$comment" ] ; then
     turtle+="${auth} rdfs:comment \"${comment}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${auth} ldh:fragment \"${fragment}\" .\n"
-fi
 
 for agent in "${agents[@]}"
 do
diff --git a/scripts/admin/acl/create-group.sh b/scripts/admin/acl/create-group.sh
index 788e64f67..348a2b567 100755
--- a/scripts/admin/acl/create-group.sh
+++ b/scripts/admin/acl/create-group.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --name NAME                          Name of the group\n"
     printf "  --description DESCRIPTION            Description of the group (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the group (optional)\n"
     printf "  --member MEMBER_URI                  URI of the member agent (optional)\n"
@@ -64,11 +63,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -130,7 +124,6 @@ args+=("-t")
 args+=("text/turtle") # content type
 args+=("${container}${encoded_slug}/")
 
-turtle+="@prefix ldh:	<https://w3id.org/atomgraph/linkeddatahub#> .\n"
 turtle+="@prefix dh:	<https://www.w3.org/ns/ldt/document-hierarchy#> .\n"
 turtle+="@prefix dct:	<http://purl.org/dc/terms/> .\n"
 turtle+="@prefix foaf:	<http://xmlns.com/foaf/0.1/> .\n"
@@ -145,9 +138,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${label}\" .\n"
 if [ -n "$description" ] ; then
     turtle+="${group} dct:description \"${description}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${group} ldh:fragment \"${fragment}\" .\n"
-fi
 
 for member in "${members[@]}"
 do
diff --git a/scripts/admin/model/add-class.sh b/scripts/admin/model/add-class.sh
index ba0cfe736..97c06c73f 100755
--- a/scripts/admin/model/add-class.sh
+++ b/scripts/admin/model/add-class.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --label LABEL                        Label of the class\n"
     printf "  --comment COMMENT                    Description of the class (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the class (optional)\n"
     printf "  --constructor CONSTRUCT_URI          URI of the constructor CONSTRUCT query (optional)\n"
@@ -68,11 +67,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -143,7 +137,6 @@ args+=("$cert_password")
 args+=("-t")
 args+=("text/turtle") # content type
 
-turtle+="@prefix ldh:	<https://w3id.org/atomgraph/linkeddatahub#> .\n"
 turtle+="@prefix dh:	<https://www.w3.org/ns/ldt/document-hierarchy#> .\n"
 turtle+="@prefix owl:	<http://www.w3.org/2002/07/owl#> .\n"
 turtle+="@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .\n"
@@ -162,9 +155,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${label}\" .\n"
 if [ -n "$comment" ] ; then
     turtle+="${class} rdfs:comment \"${comment}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${class} ldh:fragment \"${fragment}\" .\n"
-fi
 if [ -n "$constructor" ] ; then
     turtle+="${class} spin:constructor <$constructor> .\n"
 fi
diff --git a/scripts/admin/model/add-construct.sh b/scripts/admin/model/add-construct.sh
index 20201bf11..7ca4d299e 100755
--- a/scripts/admin/model/add-construct.sh
+++ b/scripts/admin/model/add-construct.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --label LABEL                        Label of the query\n"
     printf "  --comment COMMENT                    Description of the query (optional)\n"
     printf "  --slug STRING                         String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the query (optional)\n"
     printf "  --query-file ABS_PATH                Absolute path to the text file with the SPARQL query string\n"
@@ -64,11 +63,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -134,7 +128,6 @@ args+=("$cert_password")
 args+=("-t")
 args+=("text/turtle") # content type
 
-turtle+="@prefix ldh:	<https://w3id.org/atomgraph/linkeddatahub#> .\n"
 turtle+="@prefix dh:	<https://www.w3.org/ns/ldt/document-hierarchy#> .\n"
 turtle+="@prefix sp:	<http://spinrdf.org/sp#> .\n"
 turtle+="@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .\n"
@@ -152,9 +145,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${label}\" .\n"
 if [ -n "$comment" ] ; then
     turtle+="${query} rdfs:comment \"${comment}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${query} ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ../../post.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/admin/model/add-property-constraint.sh b/scripts/admin/model/add-property-constraint.sh
index cf94b345f..c89e874c5 100755
--- a/scripts/admin/model/add-property-constraint.sh
+++ b/scripts/admin/model/add-property-constraint.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --label LABEL                        Label of the constraint\n"
     printf "  --comment COMMENT                    Description of the constraint (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the constraint (optional)\n"
     printf "  --property PROPERTY_URI              URI of the constrained property\n"
@@ -64,11 +63,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -151,9 +145,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${label}\" .\n"
 if [ -n "$comment" ] ; then
     turtle+="${constraint} rdfs:comment \"${comment}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${constraint} ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ../../post.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/admin/model/add-restriction.sh b/scripts/admin/model/add-restriction.sh
index 39fd67517..c7d51ab15 100755
--- a/scripts/admin/model/add-restriction.sh
+++ b/scripts/admin/model/add-restriction.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --label LABEL                        Label of the restriction\n"
     printf "  --comment COMMENT                    Description of the restriction (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the restriction (optional)\n"
     printf "  --on-property PROPERTY_URI           URI of the restricted property (optional)\n"
@@ -66,11 +65,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -141,7 +135,6 @@ args+=("$cert_password")
 args+=("-t")
 args+=("text/turtle") # content type
 
-turtle+="@prefix ldh:	<https://w3id.org/atomgraph/linkeddatahub#> .\n"
 turtle+="@prefix dh:	<https://www.w3.org/ns/ldt/document-hierarchy#> .\n"
 turtle+="@prefix owl:	<http://www.w3.org/2002/07/owl#> .\n"
 turtle+="@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .\n"
@@ -160,10 +153,6 @@ turtle+="_:item dct:title \"${label}\" .\n"
 if [ -n "$comment" ] ; then
     turtle+="${restriction} rdfs:comment \"${comment}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${restriction} ldh:fragment \"${fragment}\" .\n"
-fi
-
 if [ -n "$on_property" ] ; then
     turtle+="${restriction} owl:onProperty <$on_property> .\n"
 fi
diff --git a/scripts/admin/model/add-select.sh b/scripts/admin/model/add-select.sh
index 2f95f8c01..697359fba 100755
--- a/scripts/admin/model/add-select.sh
+++ b/scripts/admin/model/add-select.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --label LABEL                        Label of the query\n"
     printf "  --comment COMMENT                    Description of the query (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the query (optional)\n"
     printf "  --query-file ABS_PATH                Absolute path to the text file with the SPARQL query string\n"
@@ -65,11 +64,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -162,9 +156,6 @@ if [ -n "$service" ] ; then
     turtle+="@prefix ldh:	<https://w3id.org/atomgraph/linkeddatahub#> .\n"
     turtle+="${query} ldh:service <${service}> .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${query} ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ../../post.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/admin/model/create-ontology.sh b/scripts/admin/model/create-ontology.sh
index 2de3852f6..f6b9bcefe 100755
--- a/scripts/admin/model/create-ontology.sh
+++ b/scripts/admin/model/create-ontology.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --label LABEL                        Label of the ontology\n"
     printf "  --comment COMMENT                    Description of the ontology (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --uri URI                            URI of the ontology (optional)\n"
 }
@@ -63,11 +62,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --uri)
         uri="$2"
         shift # past argument
@@ -120,7 +114,6 @@ args+=("-t")
 args+=("text/turtle") # content type
 args+=("${container}${encoded_slug}/")
 
-turtle+="@prefix ldh:	<https://w3id.org/atomgraph/linkeddatahub#> .\n"
 turtle+="@prefix dh:	<https://www.w3.org/ns/ldt/document-hierarchy#> .\n"
 turtle+="@prefix owl:	<http://www.w3.org/2002/07/owl#> .\n"
 turtle+="@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .\n"
@@ -138,9 +131,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${label}\" .\n"
 if [ -n "$comment" ] ; then
     turtle+="${ontology} rdfs:comment \"${comment}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="${ontology} ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ../../put.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/create-generic-service.sh b/scripts/create-generic-service.sh
index 28dc922f0..f6b92543c 100755
--- a/scripts/create-generic-service.sh
+++ b/scripts/create-generic-service.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --title TITLE                        Title of the service\n"
     printf "  --description DESCRIPTION            Description of the service (optional)\n"
     printf "  --slug SLUG                          String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --endpoint ENDPOINT_URI              Endpoint URI\n"
     printf "  --graph-store GRAPH_STORE_URI        Graph Store URI (optional)\n"
@@ -66,11 +65,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --endpoint)
         endpoint="$2"
         shift # past argument
@@ -163,9 +157,6 @@ fi
 if [ -n "$description" ] ; then
     turtle+="_:query dct:description \"${description}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="_:service ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ./put.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/create-result-set-chart.sh b/scripts/create-result-set-chart.sh
index ef39bc0cd..3d6e7dae1 100755
--- a/scripts/create-result-set-chart.sh
+++ b/scripts/create-result-set-chart.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --title TITLE                        Title of the chart\n"
     printf "  --description DESCRIPTION            Description of the chart (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --query QUERY_URI                    URI of the SELECT query\n"
     printf "  --chart-type TYPE_URI                URI of the chart type\n"
@@ -66,11 +65,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --query)
         query="$2"
         shift # past argument
@@ -167,9 +161,6 @@ turtle+="<${container}${encoded_slug}/> sioc:has_container <${container}> .\n"
 if [ -n "$description" ] ; then
     turtle+="_:chart dct:description \"${description}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="_:chart ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ./put.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/create-select.sh b/scripts/create-select.sh
index f58b75a7a..4fc8fa1cf 100755
--- a/scripts/create-select.sh
+++ b/scripts/create-select.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --title TITLE                        Title of the chart\n"
     printf "  --description DESCRIPTION            Description of the chart (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --query-file ABS_PATH                Absolute path to the text file with the SPARQL query string\n"
     printf "  --service SERVICE_URI                URI of the SPARQL service specific to this query (optional)\n"
@@ -64,11 +63,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --query-file)
         query_file="$2"
         shift # past argument
@@ -144,9 +138,6 @@ fi
 if [ -n "$description" ] ; then
     turtle+="_:query dct:description \"${description}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="_:query ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ./put.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/imports/create-csv-import.sh b/scripts/imports/create-csv-import.sh
index 588a5f0ca..c111902cd 100755
--- a/scripts/imports/create-csv-import.sh
+++ b/scripts/imports/create-csv-import.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --title TITLE                        Title of the container\n"
     printf "  --description DESCRIPTION            Description of the container (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --query QUERY_URI                    URI of the CONSTRUCT mapping query\n"
     printf "  --file FILE_URI                      URI of the CSV file\n"
@@ -65,11 +64,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --query)
         query="$2"
         shift # past argument
@@ -156,9 +150,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${title}\" .\n"
 if [ -n "$description" ] ; then
     turtle+="_:import dct:description \"${description}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="_:import ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ../put.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/imports/create-query.sh b/scripts/imports/create-query.sh
index a7351ebc7..be55aeaf6 100755
--- a/scripts/imports/create-query.sh
+++ b/scripts/imports/create-query.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --title TITLE                        Title of the chart\n"
     printf "  --description DESCRIPTION            Description of the chart (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --query-file ABS_PATH                Absolute path to the text file with the SPARQL query string\n"
 }
@@ -63,11 +62,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --query-file)
         query_file="$2"
         shift # past argument
@@ -135,9 +129,6 @@ turtle+="<${container}${encoded_slug}/> dct:title \"${title}\" .\n"
 if [ -n "$description" ] ; then
     turtle+="_:query dct:description \"${description}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="_:query ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ../put.sh "${args[@]}"
\ No newline at end of file
diff --git a/scripts/imports/create-rdf-import.sh b/scripts/imports/create-rdf-import.sh
index e318cd5b9..862dc0022 100755
--- a/scripts/imports/create-rdf-import.sh
+++ b/scripts/imports/create-rdf-import.sh
@@ -15,7 +15,6 @@ print_usage()
     printf "  --title TITLE                        Title of the container\n"
     printf "  --description DESCRIPTION            Description of the container (optional)\n"
     printf "  --slug STRING                        String that will be used as URI path segment (optional)\n"
-    printf "  --fragment STRING                    String that will be used as URI fragment identifier (optional)\n"
     printf "\n"
     printf "  --query QUERY_URI                    URI of the CONSTRUCT mapping query (optional)\n"
     printf "  --graph GRAPH_URI                    URI of the graph (optional)\n"
@@ -65,11 +64,6 @@ do
         shift # past argument
         shift # past value
         ;;
-        --fragment)
-        fragment="$2"
-        shift # past argument
-        shift # past value
-        ;;
         --graph)
         graph="$2"
         shift # past argument
@@ -153,9 +147,6 @@ fi
 if [ -n "$description" ] ; then
     turtle+="_:import dct:description \"${description}\" .\n"
 fi
-if [ -n "$fragment" ] ; then
-    turtle+="_:import ldh:fragment \"${fragment}\" .\n"
-fi
 
 # submit Turtle doc to the server
 echo -e "$turtle" | turtle --base="$base" | ../put.sh "${args[@]}"
\ No newline at end of file
diff --git a/src/main/java/com/atomgraph/linkeddatahub/resource/admin/oauth2/Login.java b/src/main/java/com/atomgraph/linkeddatahub/resource/admin/oauth2/Login.java
index 91230d467..6f35c20c5 100644
--- a/src/main/java/com/atomgraph/linkeddatahub/resource/admin/oauth2/Login.java
+++ b/src/main/java/com/atomgraph/linkeddatahub/resource/admin/oauth2/Login.java
@@ -251,7 +251,7 @@ public Response get(@QueryParam("default") @DefaultValue("false") Boolean defaul
                     userAccount.addProperty(SIOC.ACCOUNT_OF, agent);
                     new Skolemizer(userAccountGraphUri.toString()).apply(accountModel);
                     
-                    Response userAccountResponse = super.post(accountModel, false, userAccountGraphUri);
+                    Response userAccountResponse = super.put(accountModel, false, userAccountGraphUri);
                     if (userAccountResponse.getStatus() != Response.Status.CREATED.getStatusCode())
                     {
                         if (log.isErrorEnabled()) log.error("Cannot create UserAccount");
@@ -267,7 +267,7 @@ public Response get(@QueryParam("default") @DefaultValue("false") Boolean defaul
                     URI agentUri = URI.create(agent.getURI());
                     // get Agent's document URI by stripping the fragment identifier from the Agent's URI
                     URI agentGraphUri = new URI(agentUri.getScheme(), agentUri.getSchemeSpecificPart(), null).normalize();
-                    Response agentResponse = super.post(agentModel, false, agentGraphUri);
+                    Response agentResponse = super.put(agentModel, false, agentGraphUri);
                     if ((!agentExists && agentResponse.getStatus() != Response.Status.CREATED.getStatusCode()) ||
                         (agentExists && agentResponse.getStatus() != Response.Status.OK.getStatusCode()))
                     {
@@ -285,7 +285,7 @@ public Response get(@QueryParam("default") @DefaultValue("false") Boolean defaul
                         userAccountGraphUri);
                     new Skolemizer(authGraphUri.toString()).apply(authModel);
 
-                    Response authResponse = super.post(authModel, false, authGraphUri);
+                    Response authResponse = super.put(authModel, false, authGraphUri);
                     if (authResponse.getStatus() != Response.Status.CREATED.getStatusCode())
                     {
                         if (log.isErrorEnabled()) log.error("Cannot create Authorization");