diff --git a/src/controllers/certified.js b/src/controllers/certified.js
index 3ded9da..3aaad9d 100644
--- a/src/controllers/certified.js
+++ b/src/controllers/certified.js
@@ -1,5 +1,6 @@
 const certificateService = require('../services/certificateService');
 const certificates = require('../models/certificates');
+const { createHash } = require("crypto");
 
 exports.get = (req, res, next) => {
     if (!req.params.hashId) {
@@ -15,6 +16,32 @@ exports.get = (req, res, next) => {
     })
 };
 
+exports.getValidHash = (req, res, next) => {
+    if (!req.params.hashId) {
+        res.status(400).json({"error": "Not found information hashId"});
+    }
+
+    certificates.findOne({ hash: req.params.hashId }).then(async (result) => {
+        res.status(200).json({"certified_valid": true});
+    }).catch((error) => {
+        res.status(404).json(error);
+    })
+};
+
+exports.getCertifiedByRG = (req, res, next) => {
+    if (!req.params.rg) {
+        res.status(400).json({"error": "Not found information RG"});
+    }
+
+    let rgCripted = createHash("sha256").update(req.params.rg).digest("hex")
+
+    certificates.findOne({ documents: { rg: rgCripted } }).then(async (result) => {
+        res.status(200).json({"certified_valid": true});
+    }).catch((error) => {
+        res.status(404).json(error);
+    })
+};
+
 exports.post = (req, res, next) => {
     certificates.create(req.body).then(async (result) => {     
         await certificateService.createCertificate(req.body, result.hash).then(certificate => {
diff --git a/src/routes/certifiedRoute.js b/src/routes/certifiedRoute.js
index 1f01b5f..64fdd60 100644
--- a/src/routes/certifiedRoute.js
+++ b/src/routes/certifiedRoute.js
@@ -10,5 +10,7 @@ router.post('/', basicAuth({
 }), controller.post);
 
 router.get('/:hashId', controller.get);
+router.get('/valid/:hashId', controller.getValidHash);
+router.get('/valid/:rg', controller.getCertifiedByRG);
 
 module.exports = router;