diff --git a/lib/bloc/explorer/api_explorer.dart b/lib/bloc/explorer/api_explorer.dart
index b0d29803..5bfd183f 100644
--- a/lib/bloc/explorer/api_explorer.dart
+++ b/lib/bloc/explorer/api_explorer.dart
@@ -138,8 +138,8 @@ class ApiExplorer {
 
       for (int i = 0; i < vttsToUpdate.length; i++) {
         try {
-          ValueTransferInfo vtt = await getVtt(vttsToUpdate[i]);
-          await db.addVtt(vtt);
+          ValueTransferInfo? vtt = await getVtt(vttsToUpdate[i]);
+          if (vtt != null) await db.addVtt(vtt);
         } catch (e) {
           print('Error adding vtt to database $e');
           rethrow;
@@ -194,9 +194,9 @@ class ApiExplorer {
   }
 
   /// get the ValueTransferInfo from the explorer for a given transaction ID.
-  Future<ValueTransferInfo> getVtt(String transactionId) async {
+  Future<ValueTransferInfo?> getVtt(String transactionId) async {
     var result = await hash(transactionId);
-    return result as ValueTransferInfo;
+    return result as ValueTransferInfo?;
   }
 
   Future<MintEntry> getMint(BlockInfo blockInfo) async {
diff --git a/lib/bloc/explorer/explorer_bloc.dart b/lib/bloc/explorer/explorer_bloc.dart
index dec9166e..7c0d19e6 100644
--- a/lib/bloc/explorer/explorer_bloc.dart
+++ b/lib/bloc/explorer/explorer_bloc.dart
@@ -337,14 +337,19 @@ class ExplorerBloc extends Bloc<ExplorerEvent, ExplorerState> {
         ValueTransferInfo? vtt = walletStorage.getVtt(newVtt.hash);
         if (vtt != null) {
           if (vtt.status != TxStatusLabel.confirmed) {
-            ValueTransferInfo _vtt = await explorer.getVtt(newVtt.hash);
+            ValueTransferInfo? _vtt = await explorer.getVtt(newVtt.hash);
+            if (_vtt != null) {
+              walletStorage.setVtt(
+                  database.walletStorage.currentWallet.id, _vtt);
+              database.addOrUpdateVttInDB(_vtt);
+            }
+          }
+        } else {
+          ValueTransferInfo? _vtt = await explorer.getVtt(newVtt.hash);
+          if (_vtt != null) {
             walletStorage.setVtt(database.walletStorage.currentWallet.id, _vtt);
             database.addOrUpdateVttInDB(_vtt);
           }
-        } else {
-          ValueTransferInfo _vtt = await explorer.getVtt(newVtt.hash);
-          walletStorage.setVtt(database.walletStorage.currentWallet.id, _vtt);
-          database.addOrUpdateVttInDB(_vtt);
         }
       }
       account.vttHashes.clear();
@@ -491,8 +496,8 @@ class ExplorerBloc extends Bloc<ExplorerEvent, ExplorerState> {
     for (int i = 0; i < unconfirmedVtts.length; i++) {
       ValueTransferInfo _vtt = unconfirmedVtts[i];
       try {
-        ValueTransferInfo vtt = await explorer.getVtt(_vtt.hash);
-        if (_vtt.status != vtt.status) {
+        ValueTransferInfo? vtt = await explorer.getVtt(_vtt.txnHash);
+        if (vtt != null && _vtt.status != vtt.status) {
           await database.updateVtt(wallet.id, vtt);
         }
       } catch (e) {
@@ -523,7 +528,6 @@ class ExplorerBloc extends Bloc<ExplorerEvent, ExplorerState> {
     await database.updateCurrentWallet(
         currentWalletId: wallet.id,
         isHdWallet: wallet.walletType == WalletType.hd);
-    print('FINISH SYNC');
     return storage;
   }
 }
diff --git a/lib/bloc/transactions/value_transfer/vtt_create/vtt_create_bloc.dart b/lib/bloc/transactions/value_transfer/vtt_create/vtt_create_bloc.dart
index 44f5360e..9f3ed6f4 100644
--- a/lib/bloc/transactions/value_transfer/vtt_create/vtt_create_bloc.dart
+++ b/lib/bloc/transactions/value_transfer/vtt_create/vtt_create_bloc.dart
@@ -18,6 +18,7 @@ import 'package:my_wit_wallet/shared/locator.dart';
 import 'package:my_wit_wallet/shared/api_database.dart';
 import 'package:my_wit_wallet/util/storage/database/wallet.dart';
 import 'package:my_wit_wallet/util/storage/database/account.dart';
+import 'dart:convert';
 
 part 'vtt_create_event.dart';
 part 'vtt_create_state.dart';
@@ -36,9 +37,10 @@ Future<bool> _sendTransaction(Transaction transaction) async {
   try {
     var resp =
         await Locator.instance.get<ApiExplorer>().sendTransaction(transaction);
-    return resp['result'];
+    return resp['result'] != null ? true : false;
   } catch (e) {
-    print('Error sending transaction: $transaction $e');
+    print(
+        'Error sending transaction: ${json.encode(transaction.jsonMap(asHex: true))} $e');
     return false;
   }
 }
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index 6759ba0c..9b9f93ea 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -286,6 +286,7 @@
   "valueTransferTxn": "Value Transfer",
   "mintTxn": "Mint",
   "confirmed": "Confirmed",
+  "mined": "Mined",
   "pending": "Pending",
   "reverted": "Reverted"
 }
\ No newline at end of file
diff --git a/lib/util/filter_utxos.dart b/lib/util/filter_utxos.dart
index 2f9e88a7..437df9a9 100644
--- a/lib/util/filter_utxos.dart
+++ b/lib/util/filter_utxos.dart
@@ -1,23 +1,21 @@
 import 'package:witnet/data_structures.dart';
 import 'package:witnet/explorer.dart';
-import 'package:witnet/schema.dart';
 
 List<Utxo> filterUsedUtxos(
     {required List<Utxo> utxoList,
     required List<ValueTransferInfo> pendingVtts}) {
   List<Utxo> filteredUtxos = [];
-  List<OutputPointer> outputPointers = [];
+  List<String> outputPointers = [];
 
   for (int i = 0; i < pendingVtts.length; i++) {
-    pendingVtts[i].inputAddresses.forEach((String inputAddress) {
-      //FIX: get output pointer from new value trasnfer schema
-      // outputPointers.add(input.input.outputPointer);
+    pendingVtts[i].inputUtxos.forEach((InputUtxo input) {
+      outputPointers.add(input.inputUtxo);
     });
   }
 
   for (int i = 0; i < utxoList.length; i++) {
     Utxo currentUtxo = utxoList[i];
-    if (!outputPointers.contains(currentUtxo.outputPointer)) {
+    if (!outputPointers.contains(currentUtxo.outputPointer.toString())) {
       filteredUtxos.add(currentUtxo);
     }
   }
diff --git a/lib/util/storage/database/transaction_adapter.dart b/lib/util/storage/database/transaction_adapter.dart
index ffa3478c..35df7ee0 100644
--- a/lib/util/storage/database/transaction_adapter.dart
+++ b/lib/util/storage/database/transaction_adapter.dart
@@ -108,7 +108,8 @@ class GeneralTransaction extends HashInfo {
               priority: valueTransferInfo.priority));
 
   ValueTransferInfo toValueTransferInfo() => ValueTransferInfo(
-        block: blockHash,
+        block: blockHash ??
+            '0000000000000000000000000000000000000000000000000000000000000000',
         fee: fee,
         inputUtxos: vtt?.inputs ?? [],
         outputs: vtt?.outputs ?? [],
diff --git a/lib/util/storage/database/wallet.dart b/lib/util/storage/database/wallet.dart
index 69a58d52..0e98a6b2 100644
--- a/lib/util/storage/database/wallet.dart
+++ b/lib/util/storage/database/wallet.dart
@@ -182,7 +182,7 @@ class Wallet {
   List<ValueTransferInfo> pendingTransactions() {
     List<ValueTransferInfo> pendingVtts = [];
     allTransactions().forEach((vtt) {
-      if (vtt.status == "pending") {
+      if (vtt.status == TxStatusLabel.pending) {
         pendingVtts.add(vtt);
       }
     });
diff --git a/lib/widgets/transaction_details.dart b/lib/widgets/transaction_details.dart
index 57880ce9..23f6726c 100644
--- a/lib/widgets/transaction_details.dart
+++ b/lib/widgets/transaction_details.dart
@@ -64,6 +64,8 @@ class TransactionDetails extends StatelessWidget {
     switch (status) {
       case TxStatusLabel.confirmed:
         return localization.confirmed;
+      case TxStatusLabel.mined:
+        return localization.mined;
       case TxStatusLabel.pending:
         return localization.pending;
       case TxStatusLabel.reverted:
diff --git a/test/util/transactions_list/get_transaction_address_test.dart b/test/util/transactions_list/get_transaction_address_test.dart
index 252f4a07..ef5221f0 100644
--- a/test/util/transactions_list/get_transaction_address_test.dart
+++ b/test/util/transactions_list/get_transaction_address_test.dart
@@ -12,23 +12,20 @@ void main() {
   List<InputUtxo> inputs = [
     InputUtxo(
         address: 'wit1zl7ty0lwr7atp5fu34azkgewhtfx2fl4wv69cw',
-        input: Input(
-            outputPointer: OutputPointer.fromString(
-                '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9')),
+        inputUtxo:
+            '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9',
         value: 10180697116),
   ];
   List<InputUtxo> severalInputs = [
     InputUtxo(
         address: 'wit1zl7ty0lwr7atp5fu34azkgewhtfx2fl4wv69cw',
-        input: Input(
-            outputPointer: OutputPointer.fromString(
-                '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9')),
+        inputUtxo:
+            '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9',
         value: 10180697116),
     InputUtxo(
         address: 'wit2zl7ty0lwr7atp5fu34azkgewhtfx2fl4wv69cw',
-        input: Input(
-            outputPointer: OutputPointer.fromString(
-                '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9')),
+        inputUtxo:
+            '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9',
         value: 10180697116)
   ];
   List<ValueTransferOutput> outputs = [
diff --git a/test/util/transactions_list/get_transaction_label_test.dart b/test/util/transactions_list/get_transaction_label_test.dart
index 83b6cb8c..ddd82a4b 100644
--- a/test/util/transactions_list/get_transaction_label_test.dart
+++ b/test/util/transactions_list/get_transaction_label_test.dart
@@ -2,7 +2,6 @@ import 'package:my_wit_wallet/util/storage/database/account.dart';
 import 'package:my_wit_wallet/util/transactions_list/get_transaction_label.dart';
 import 'package:test/test.dart';
 import 'package:witnet/explorer.dart';
-import 'package:witnet/schema.dart';
 
 void main() {
   List<String> externalAddresses = [
@@ -22,9 +21,8 @@ void main() {
   List<InputUtxo> inputs = [
     InputUtxo(
         address: 'wit1zl7ty0lwr7atp5fu34azkgewhtfx2fl4wv69cw',
-        input: Input(
-            outputPointer: OutputPointer.fromString(
-                '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9')),
+        inputUtxo:
+            '59e4dc54077871e71875a4b840da67c23659d89d41eaad85cdb9a5d552254b5d:9',
         value: 10180697116),
   ];