diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidBlacklist.java b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidBlacklist.java
new file mode 100644
index 0000000000..85abbe3508
--- /dev/null
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidBlacklist.java
@@ -0,0 +1,2 @@
+package eu.dnetlib.dhp.schema.oaf.utils;public class PidBlacklist {
+}
diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidBlacklistProvider.java b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidBlacklistProvider.java
new file mode 100644
index 0000000000..e044bedea2
--- /dev/null
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidBlacklistProvider.java
@@ -0,0 +1,2 @@
+package eu.dnetlib.dhp.schema.oaf.utils;public class PidBlacklistProvider {
+}
diff --git a/dhp-common/src/main/resources/eu/dnetlib/dhp/schema/oaf/utils/pid_blacklist.json b/dhp-common/src/main/resources/eu/dnetlib/dhp/schema/oaf/utils/pid_blacklist.json
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/dhp-common/src/test/java/eu/dnetlib/dhp/schema/oaf/utils/BlackListProviderTest.java b/dhp-common/src/test/java/eu/dnetlib/dhp/schema/oaf/utils/BlackListProviderTest.java
new file mode 100644
index 0000000000..bd2eb4ec36
--- /dev/null
+++ b/dhp-common/src/test/java/eu/dnetlib/dhp/schema/oaf/utils/BlackListProviderTest.java
@@ -0,0 +1,2 @@
+package eu.dnetlib.dhp.schema.oaf.utils;public class BlackListProviderTest {
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/generate_entities_parameters.json b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/generate_entities_parameters.json
index 8342dde959..4b3ebba381 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/generate_entities_parameters.json
+++ b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/generate_entities_parameters.json
@@ -22,5 +22,11 @@
 		"paramLongName": "isLookupUrl",
 		"paramDescription": "the url of the ISLookupService",
 		"paramRequired": true
+	},
+	{
+		"paramName": "shi",
+		"paramLongName": "shouldHashId",
+		"paramDescription": "should ids be hashed?",
+		"paramRequired": false
 	}
 ]
\ No newline at end of file
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/raw_all/oozie_app/workflow.xml b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/raw_all/oozie_app/workflow.xml
index d8146d9a22..823b185f8b 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/raw_all/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/raw_all/oozie_app/workflow.xml
@@ -270,6 +270,7 @@
             <arg>--sourcePaths</arg><arg>${contentPath}/db_claims,${contentPath}/oaf_claims,${contentPath}/odf_claims,${contentPath}/oaf_records_invisible</arg>
             <arg>--targetPath</arg><arg>${workingDir}/entities_claim</arg>
             <arg>--isLookupUrl</arg><arg>${isLookupUrl}</arg>
+            <arg>--shouldHashId</arg><arg>${shouldHashId}</arg>
         </spark>
         <ok to="GenerateGraph_claims"/>
         <error to="Kill"/>
@@ -317,6 +318,7 @@
             <arg>--sourcePaths</arg><arg>${contentPath}/db_records,${contentPath}/oaf_records,${contentPath}/odf_records</arg>
             <arg>--targetPath</arg><arg>${workingDir}/entities</arg>
             <arg>--isLookupUrl</arg><arg>${isLookupUrl}</arg>
+            <arg>--shouldHashId</arg><arg>${shouldHashId}</arg>
         </spark>
         <ok to="GenerateGraph"/>
         <error to="Kill"/>