diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java
index 6365a1db9..ed5e04f37 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java
@@ -527,9 +527,12 @@ public class MigrateDbEntitiesApplication extends AbstractMigrationApplication i
 		final Boolean deletedbyinference = rs.getBoolean("deletedbyinference");
 		final String inferenceprovenance = rs.getString("inferenceprovenance");
 		final Boolean inferred = rs.getBoolean("inferred");
-		final String trust = rs.getString("trust");
+
+		final double trust = rs.getDouble("trust");
+
 		return dataInfo(
-			deletedbyinference, inferenceprovenance, inferred, false, ENTITYREGISTRY_PROVENANCE_ACTION, trust);
+			deletedbyinference, inferenceprovenance, inferred, false, ENTITYREGISTRY_PROVENANCE_ACTION,
+			String.format("%.3f", trust));
 	}
 
 	private Qualifier prepareQualifierSplitting(final String s) {
diff --git a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasourceorganization_resultset_entry.json b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasourceorganization_resultset_entry.json
index 2baf7c8f1..06b0d483b 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasourceorganization_resultset_entry.json
+++ b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasourceorganization_resultset_entry.json
@@ -31,8 +31,8 @@
 	},
 	{
 		"field": "trust",
-		"type": "string",
-		"value": "0.9"
+		"type": "double",
+		"value": 0.9
 	},
 	{
 		"field": "inferenceprovenance",
diff --git a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasources_resultset_entry.json b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasources_resultset_entry.json
index 8f8aed3a0..befa722e1 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasources_resultset_entry.json
+++ b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/datasources_resultset_entry.json
@@ -114,8 +114,8 @@
 	},
 	{
 		"field": "trust",
-		"type": "string",
-		"value": "0.9"
+		"type": "double",
+		"value": 0.9
 	},
 	{
 		"field": "inferenceprovenance",
diff --git a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/organizations_resultset_entry.json b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/organizations_resultset_entry.json
index 38657a1e1..811a9079f 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/organizations_resultset_entry.json
+++ b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/organizations_resultset_entry.json
@@ -96,8 +96,8 @@
 	},
 	{
 		"field": "trust",
-		"type": "string",
-		"value": "0.9"
+		"type": "double",
+		"value": 0.9
 	},
 	{
 		"field": "inferenceprovenance",
diff --git a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projectorganization_resultset_entry.json b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projectorganization_resultset_entry.json
index 4311086e7..a3305926d 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projectorganization_resultset_entry.json
+++ b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projectorganization_resultset_entry.json
@@ -41,8 +41,8 @@
 	},
 	{
 		"field": "trust",
-		"type": "string",
-		"value": "0.9"
+		"type": "double",
+		"value": 0.9
 	},
 	{
 		"field": "inferenceprovenance",
diff --git a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projects_resultset_entry.json b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projects_resultset_entry.json
index a25215ca3..818bf3e58 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projects_resultset_entry.json
+++ b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/projects_resultset_entry.json
@@ -86,8 +86,8 @@
 	},
 	{
 		"field": "trust",
-		"type": "string",
-		"value": "0.9"
+		"type": "double",
+		"value": 0.9
 	},
 	{
 		"field": "inferenceprovenance",