diff --git a/pom.xml b/pom.xml
index 34b460d..e4a402b 100755
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>es.upm.fi.oeg</groupId>
 	<artifactId>wothive</artifactId>
-	<version>0.1.7</version>
+	<version>0.1.8</version>
 	<name>Directory for the Web of Things</name>
 
 	<properties>
diff --git a/src/main/java/directory/things/ThingsController.java b/src/main/java/directory/things/ThingsController.java
index ca87867..b05b200 100755
--- a/src/main/java/directory/things/ThingsController.java
+++ b/src/main/java/directory/things/ThingsController.java
@@ -90,13 +90,13 @@ private static final void prepareListingResponse(Response response, Integer limi
 	
 	public static final Route registrationUpdate = (Request request, Response response) -> {
 		String graphId = buildGraphId(request);
-
+		String id = request.params("id");
 		String td = hasValidBody(request.body());
 		RDFFormat format = hasValidMime(request.headers(Utils.HEADER_CONTENT_TYPE), true);
 		Boolean exist = false;
 		
 		if(format.equals(RDFFormat.JSONLD_FRAME_FLAT)) { // Create/Update
-			exist = ThingsService.registerJsonThing(graphId, td);
+			exist = ThingsService.registerJsonThing(graphId, id, td);
 		}else {
 			exist = ThingsService.registerRDFThing(graphId, format, td);
 		}
@@ -110,9 +110,9 @@ private static final void prepareListingResponse(Response response, Integer limi
 	public static final Route registrationAnonymous = (Request request, Response response) -> {
 		String td = hasValidBody(request.body());
 		RDFFormat format = hasValidMime(request.headers(Utils.HEADER_CONTENT_TYPE), true);
-
+		String graphID = buildGraphId(request);
 		if(format.equals(RDFFormat.JSONLD_FRAME_FLAT)) {
-			String newUUID = ThingsService.registerJsonThingAnonymous(td);
+			String newUUID = ThingsService.registerJsonThingAnonymous(td, graphID);
 			response.header(LOCATION_HEADER, newUUID);
 		}else {
 			throw new ThingRegistrationException("Things under a different form than application/td+json must be registered using PUT");
@@ -124,6 +124,8 @@ private static final void prepareListingResponse(Response response, Integer limi
 	
 	public static final Route partialUpdate = (Request request, Response response) -> {
 		JsonObject tdJson = null;
+		String id = request.params("id");
+
 		String graphId = buildGraphId(request);
 		String td = hasValidBody(request.body());
 		if(!request.headers(Utils.HEADER_CONTENT_TYPE).equals("application/merge-patch+json")) 
@@ -133,7 +135,7 @@ private static final void prepareListingResponse(Response response, Integer limi
 		}catch(Exception e) {
 			throw new ThingRegistrationException("Partial updates are only supported for Things under the form of application/td+json, provided update document has syntax errors");
 		}
-		ThingsService.updateThingPartially(graphId,  tdJson);
+		ThingsService.updateThingPartially(graphId, id, tdJson);
 		response.status(204);
 		
 		return "";
@@ -189,8 +191,14 @@ private static final RDFFormat hasValidMime(String mime, boolean strict) {
 	
 	private static final String HTTP_CONSTANT = "http://";
 	private static final String buildGraphId(Request request) {
-		return Utils.buildMessage(HTTP_CONSTANT,request.host(),request.pathInfo(),request.params(":id")); 
+		String id = request.params(":id");
+		if(id!=null) {
+			return Utils.buildMessage(HTTP_CONSTANT,request.host(),request.pathInfo());
+		}else {
+			return Utils.buildMessage(HTTP_CONSTANT,request.host(),request.pathInfo()); 
+		}
 	}
+	
 		
 	
 }
diff --git a/src/main/java/directory/things/ThingsMapper.java b/src/main/java/directory/things/ThingsMapper.java
index a1fdbc3..e05faf2 100755
--- a/src/main/java/directory/things/ThingsMapper.java
+++ b/src/main/java/directory/things/ThingsMapper.java
@@ -59,7 +59,7 @@ protected static byte[] thingToStringBytes(Thing thing, RDFFormat format) {
 	}
 
 	// -- JSON factory
-	public static Thing createJsonThing(String td) {
+	public static Thing createJsonThing(String td, String id) {
 		Thing thing = null;
 		try {
 			JsonObject thingJson = JTD.parseJson(td);
@@ -67,7 +67,11 @@ public static Thing createJsonThing(String td) {
 			if (!thingJson.has(ID1) && !thingJson.has(ID2))
 				throw new ThingRegistrationException(
 						"Things under the form application/td+json registered using PUT method must provide a valid 'id', otherwhise se the POST method for Things without 'id'");
+			// todo check if the td id and id are the same
 			thing = Thing.fromJson(thingJson);
+			//if(!thing.getId().equals(id))
+				//throw new ThingRegistrationException("Provided Thing has an ID different from the one specified in the request");
+			
 		} catch (Exception e) {
 			throw new ThingParsingException(
 					Utils.buildMessage("Thing under the form application/td+json has errors, check:", e.toString()));
diff --git a/src/main/java/directory/things/ThingsService.java b/src/main/java/directory/things/ThingsService.java
index bce7384..fe935b9 100755
--- a/src/main/java/directory/things/ThingsService.java
+++ b/src/main/java/directory/things/ThingsService.java
@@ -38,16 +38,17 @@ protected static final Thing retrieveThing(String graphId) {
 		return ThingsDAO.read(graphId);
 	}
 	
-	public static final String registerJsonThingAnonymous(String td) {
+	public static final String registerJsonThingAnonymous(String td, String graphId) {
 		Thing thing = ThingsMapper.createJsonThingAnonymous(td);
+		graphId = Utils.buildMessage(graphId,"/",thing.getId());
 		enrichTD(thing);
-		ThingsDAO.create(thing, thing.getId(), false);
+		ThingsDAO.create(thing, graphId, false);
 		return thing.getId();
 	}
 	
-	protected static final Boolean registerJsonThing(String graphId, String td) {
+	protected static final Boolean registerJsonThing(String graphId, String id, String td) {
 		Boolean exist = ThingsDAO.exist(graphId);
-		Thing thing = ThingsMapper.createJsonThing(td);
+		Thing thing = ThingsMapper.createJsonThing(td, id);
 		if(exist) {
 			ThingsDAO.delete(graphId);
 			markModification(thing);
@@ -78,12 +79,12 @@ protected static final Boolean registerRDFThing(String graphId, RDFFormat format
 	}
 	
 
-	public static void updateThingPartially(String graphId, JsonObject partialUpdate) {
+	public static void updateThingPartially(String graphId, String id, JsonObject partialUpdate) {
 		Thing existingThing = ThingsService.retrieveThing(graphId);
 		try {
 			Thing updatedThing = JTD.updateJsonThingPartially(existingThing, partialUpdate);
 			markModification(updatedThing);
-			ThingsService.registerJsonThing(graphId, updatedThing.toJson().toString());
+			ThingsService.registerJsonThing(graphId, id, updatedThing.toJson().toString());
 		} catch (IOException e) {
 			throw new ThingParsingException(e.toString());
 		} catch (JsonPatchException e) {