diff --git a/bus-gateway/controllers/iti65.js b/bus-gateway/controllers/iti65.js
index f86286e..a96a31b 100644
--- a/bus-gateway/controllers/iti65.js
+++ b/bus-gateway/controllers/iti65.js
@@ -16,8 +16,8 @@ const LIST_RESOURCE_TYPE = 'List';
 
 const NATIONAL_ID_SYSTEM = 'https://federador.msal.gob.ar/patient-id';
 const DNI_SYSTEM = 'http://www.renaper.gob.ar/dni';
-const CUSTODIAN_ID_SYSTEM = 'https://federador.msal.gob.ar/uri';
-const MASTER_ID_SYSTEM = ''
+const CUSTODIAN_ID_SYSTEM = 'http://federador.msal.gob.ar/uri';
+const MASTER_ID_SYSTEM = 'urn:ietf:rfc:3986'
 
 /**
  * Procesa una transacción y devuelve los recursos persistidos en el servidor HAPI FHIR
@@ -91,7 +91,8 @@ async function createBusDocumentReference(token, localIPSDocument, localPatient)
         resourceType: 'DocumentReference',
         status: 'current',
         masterIdentifier: {
-            system: 'urn:ietf:rfc:3986',
+            use: 'usual',
+            system: MASTER_ID_SYSTEM,
             value: `urn:uuid:${uuidv4()}`
         },
         type: {
@@ -103,6 +104,7 @@ async function createBusDocumentReference(token, localIPSDocument, localPatient)
                 },
             ],
         },
+        date: "2026-04-28T10:00:00-03:00",
         subject: {
             reference: busPatientReference
         },
@@ -113,6 +115,7 @@ async function createBusDocumentReference(token, localIPSDocument, localPatient)
             {
                 attachment: {
                     url: localIPSDocumentReference,
+                    contentType: 'application/fhir+json'
                 },
             },
         ],
@@ -154,7 +157,7 @@ async function provideDocumentBundle(req, res, next) {
         // Paso 4: Creo el document reference en el indice de atenciones
         const busDocumentReference = await createBusDocumentReference(token, localIPSDocument, localPatient);
 
-        return status(200).json(busDocumentReference);
+        return res.status(200).json(busDocumentReference);
 
     } catch (err) {
         next(err);
diff --git a/bus-gateway/services/documentReference.js b/bus-gateway/services/documentReference.js
index 8532e04..09fd886 100644
--- a/bus-gateway/services/documentReference.js
+++ b/bus-gateway/services/documentReference.js
@@ -101,7 +101,7 @@ async function searchDocumentReference(token, subject, custodian, type) {
 }
 
 module.exports = {
-    fetchDocumentRefernce: fetchDocumentReference,
+    fetchDocumentReference,
     postDocumentReference,
     searchDocumentReferenceBySubject,
     searchDocumentReferenceByPatient,