diff --git a/lib/screens/certifications.dart b/lib/screens/certifications.dart
index 7259504..f4ef126 100644
--- a/lib/screens/certifications.dart
+++ b/lib/screens/certifications.dart
@@ -19,9 +19,9 @@ class CertificationsScreen extends StatelessWidget {
         appBar: AppBar(
             elevation: 0,
             toolbarHeight: 60 * ratio,
-            title: const SizedBox(
+            title: SizedBox(
               height: 22,
-              child: Text('Certifications'),
+              child: Text('Certifications de $username'),
             )),
         body: SafeArea(
           child: Accordion(
diff --git a/lib/screens/myWallets/wallet_options.dart b/lib/screens/myWallets/wallet_options.dart
index aa402ec..d47834b 100644
--- a/lib/screens/myWallets/wallet_options.dart
+++ b/lib/screens/myWallets/wallet_options.dart
@@ -12,10 +12,12 @@ import 'package:gecko/models/wallet_data.dart';
 import 'package:gecko/providers/substrate_sdk.dart';
 import 'package:gecko/providers/wallet_options.dart';
 import 'package:gecko/providers/wallets_profiles.dart';
+import 'package:gecko/screens/certifications.dart';
 import 'package:gecko/screens/common_elements.dart';
 import 'package:gecko/screens/activity.dart';
 import 'package:gecko/screens/myWallets/manage_membership.dart';
 import 'package:gecko/screens/qrcode_fullscreen.dart';
+import 'package:gecko/widgets/page_route_no_transition.dart';
 import 'package:provider/provider.dart';
 
 import 'package:qr_flutter/qr_flutter.dart';
@@ -143,16 +145,38 @@ class WalletOptions extends StatelessWidget {
                                 balance(
                                     context, walletProvider.address.text, 21),
                                 const SizedBox(width: 30),
-                                Column(
-                                    crossAxisAlignment:
-                                        CrossAxisAlignment.center,
-                                    children: [
-                                      walletOptions.idtyStatus(
-                                          context, walletOptions.address.text,
-                                          isOwner: true, color: orangeC),
-                                      getCerts(context,
-                                          walletProvider.address.text, 15),
-                                    ]),
+
+                                InkWell(
+                                  onTap: () => duniterIndexer.walletNameIndexer[
+                                              walletProvider.address.text] !=
+                                          null
+                                      ? {
+                                          Navigator.push(
+                                            context,
+                                            PageNoTransit(builder: (context) {
+                                              return CertificationsScreen(
+                                                  address: walletProvider
+                                                      .address.text,
+                                                  username: duniterIndexer
+                                                          .walletNameIndexer[
+                                                      walletProvider
+                                                          .address.text]!);
+                                            }),
+                                          ),
+                                        }
+                                      : null,
+                                  child: Column(
+                                      crossAxisAlignment:
+                                          CrossAxisAlignment.center,
+                                      children: [
+                                        walletOptions.idtyStatus(
+                                            context, walletOptions.address.text,
+                                            isOwner: true, color: orangeC),
+                                        getCerts(context,
+                                            walletProvider.address.text, 15),
+                                      ]),
+                                ),
+
                                 SizedBox(height: 10 * ratio),
                               ]),
                           const Spacer(flex: 2),
diff --git a/lib/widgets/header_profile.dart b/lib/widgets/header_profile.dart
index aa73ea4..ac7a028 100644
--- a/lib/widgets/header_profile.dart
+++ b/lib/widgets/header_profile.dart
@@ -3,6 +3,7 @@ import 'package:flutter/services.dart';
 import 'package:gecko/globals.dart';
 import 'package:gecko/models/widgets_keys.dart';
 import 'package:gecko/providers/cesium_plus.dart';
+import 'package:gecko/providers/duniter_indexer.dart';
 import 'package:gecko/providers/substrate_sdk.dart';
 import 'package:gecko/providers/wallet_options.dart';
 import 'package:gecko/providers/wallets_profiles.dart';
@@ -27,6 +28,7 @@ class HeaderProfile extends StatelessWidget {
 
     final walletOptions =
         Provider.of<WalletOptionsProvider>(context, listen: false);
+    final duniterIndexer = Provider.of<DuniterIndexer>(context, listen: false);
 
     return Stack(children: <Widget>[
       Consumer<SubstrateSdk>(builder: (context, sub, _) {
@@ -75,15 +77,19 @@ class HeaderProfile extends StatelessWidget {
                 const SizedBox(height: 10),
 
                 InkWell(
-                  onTap: () => {
-                    Navigator.push(
-                      context,
-                      PageNoTransit(builder: (context) {
-                        return CertificationsScreen(
-                            address: address, username: '');
-                      }),
-                    ),
-                  },
+                  onTap: () => duniterIndexer.walletNameIndexer[address] != null
+                      ? {
+                          Navigator.push(
+                            context,
+                            PageNoTransit(builder: (context) {
+                              return CertificationsScreen(
+                                  address: address,
+                                  username: duniterIndexer
+                                      .walletNameIndexer[address]!);
+                            }),
+                          ),
+                        }
+                      : null,
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
diff --git a/pubspec.yaml b/pubspec.yaml
index dfd6eef..d3ee49d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -5,7 +5,7 @@ description: Pay with G1.
 # pub.dev using `pub publish`. This is preferred for private packages.
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
-version: 0.0.12+36
+version: 0.0.12+37
 
 environment:
   sdk: '>=2.12.0 <3.0.0'