diff --git a/asset-transfer-basic/chaincode-go/chaincode/smartcontract.go b/asset-transfer-basic/chaincode-go/chaincode/smartcontract.go
index d1503782..d73de622 100644
--- a/asset-transfer-basic/chaincode-go/chaincode/smartcontract.go
+++ b/asset-transfer-basic/chaincode-go/chaincode/smartcontract.go
@@ -33,7 +33,7 @@ type Receta struct {
 
 type Vacuna struct {
 	ID                  string `json:"id"` // identificador único para el ledger
-	Identificador       string `json:"identificador"`
+	Identifier       	string `json:"identifier"`
 	Status              string `json:"status"` // podés validarlo con enums si querés
 	StatusChange        string `json:"statusChange"` // como string (ISO8601)
 	StatusReason        string `json:"statusReason"`
diff --git a/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/controllers/VacunaController.java b/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/controllers/VacunaController.java
index c5908874..4f55795a 100644
--- a/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/controllers/VacunaController.java
+++ b/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/controllers/VacunaController.java
@@ -63,7 +63,7 @@ public class VacunaController {
             // Log antes de intentar registrar la vacuna
             System.out.println("Intentando registrar la vacuna...");
     
-            vacunaService.registrarVacuna(vacuna);
+            vacunaService.cargarVacuna(vacuna);
     
             // Log después de que la vacuna fue registrada
             System.out.println("Vacuna registrada correctamente.");
diff --git a/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/models/Vacuna.java b/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/models/Vacuna.java
index 3a70bda9..174b6f78 100644
--- a/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/models/Vacuna.java
+++ b/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/models/Vacuna.java
@@ -9,7 +9,7 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 public class Vacuna {
     private String id;
-    private String identificador;
+    private String identifier;
     private String status;
     private String statusChange;
     private String statusReason;
diff --git a/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/services/VacunaService.java b/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/services/VacunaService.java
index 7ac59616..0826b22b 100644
--- a/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/services/VacunaService.java
+++ b/asset-transfer-basic/maven-API-SiMeDi/src/main/java/com/code/hyperledger/services/VacunaService.java
@@ -9,18 +9,20 @@ import io.grpc.Grpc;
 import io.grpc.ManagedChannel;
 import io.grpc.TlsChannelCredentials;
 import lombok.SneakyThrows;
+import main.java.com.code.hyperledger.models.VacunaDto;
+
 import org.hyperledger.fabric.client.*;
 import org.hyperledger.fabric.client.identity.*;
 import org.springframework.stereotype.Service;
-import org.hyperledger.fabric.client.identity.Identity;
-import org.hyperledger.fabric.client.identity.Signer;
 
 import javax.annotation.PostConstruct;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.security.Identity;
 import java.security.InvalidKeyException;
+import java.security.Signer;
 import java.security.cert.CertificateException;
 import java.util.ArrayList;
 import java.util.List;
@@ -98,12 +100,12 @@ public class VacunaService {
         contract = network.getContract(CHAINCODE_NAME);
     }
 
-    public void registrarVacuna(Vacuna vacuna)
+    public void cargarVacuna(Vacuna vacuna)
             throws CommitStatusException, EndorseException, CommitException, SubmitException {
         contract.submitTransaction(
                 "CreateVacuna",
                 vacuna.getId(),
-                vacuna.getIdentificador(),
+                vacuna.getIdentifier(),
                 vacuna.getStatus(),
                 vacuna.getStatusChange(),
                 vacuna.getStatusReason(),
@@ -113,8 +115,7 @@ public class VacunaService {
                 vacuna.getLotNumber(),
                 vacuna.getExpirationDate(),
                 vacuna.getPatientDocumentNumber(),
-                vacuna.getReactions()
-        );
+                vacuna.getReactions());
     }
 
     public Vacuna obtenerVacuna(String vacunaId) throws GatewayException, IOException {