diff --git a/src/Angor.Test/Angor.Test.csproj b/src/Angor.Test/Angor.Test.csproj
index 02195e48..c6a9c380 100644
--- a/src/Angor.Test/Angor.Test.csproj
+++ b/src/Angor.Test/Angor.Test.csproj
@@ -22,7 +22,7 @@
     <PackageReference Include="xunit" Version="2.9.2" />
 
     <PackageReference Include="Blockcore.Core" Version="1.2.42" />
-    <PackageReference Include="NBitcoin" Version="7.0.46" />
+    <PackageReference Include="NBitcoin" Version="7.0.25" />
 
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/src/Angor.Test/DataBuilders/AngorScripts.cs b/src/Angor.Test/DataBuilders/AngorScripts.cs
index 7df1679e..f331551b 100644
--- a/src/Angor.Test/DataBuilders/AngorScripts.cs
+++ b/src/Angor.Test/DataBuilders/AngorScripts.cs
@@ -26,8 +26,8 @@ public static Script CreateControlBlock(ProjectScripts scripts, Expression<Func<
             var treeInfo = AngorScripts.BuildTaprootSpendInfo(scripts);
 
             var script = func.Compile().Invoke(scripts);
-            
-            ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(script.ToBytes()).ToTapScript(TapLeafVersion.C0));
+
+            ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(script.ToBytes()), (byte)TaprootConstants.TAPROOT_LEAF_TAPSCRIPT);
 
             return new Script(controlBlock.ToBytes());
         }
@@ -80,7 +80,7 @@ public static (Script controlBlock, Script execute, Script[] secrets) CreateCont
                 throw new Exception("no secret found that matches the given scripts");
             }
 
-            ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(execute.ToBytes()).ToTapScript(TapLeafVersion.C0));
+            ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(execute.ToBytes()), (byte)TaprootConstants.TAPROOT_LEAF_TAPSCRIPT);
 
             return (new Script(controlBlock.ToBytes()), execute, secretHashes.ToArray());
         }
@@ -92,12 +92,7 @@ private static TaprootSpendInfo BuildTaprootSpendInfo(ProjectScripts scripts)
 
             var scriptWeights = BuildTaprootScripts(scripts);
 
-            // Transform the scripts to TapScript format
-            var tapScriptWeights = scriptWeights
-                .Select(sw => (sw.Item1, sw.Item2.ToTapScript(TapLeafVersion.C0)))
-                .ToList();
-
-            var treeInfo = TaprootSpendInfo.WithHuffmanTree(taprootKey, tapScriptWeights.ToArray());
+            var treeInfo = TaprootSpendInfo.WithHuffmanTree(taprootKey, scriptWeights.ToArray());
 
             return treeInfo;
         }
diff --git a/src/Angor.Test/DataBuilders/InvestmentOperations.cs b/src/Angor.Test/DataBuilders/InvestmentOperations.cs
index 3204869d..f4e2f9c0 100644
--- a/src/Angor.Test/DataBuilders/InvestmentOperations.cs
+++ b/src/Angor.Test/DataBuilders/InvestmentOperations.cs
@@ -203,8 +203,8 @@ public Transaction SpendFounderStage(Network network, FounderContext context, in
             var sighash = TaprootSigHash.All;// TaprootSigHash.Single | TaprootSigHash.AnyoneCanPay;
 
             var allSpendingOutputs = signingContext.Select(s => s.spendingOutput.TxOut).ToArray();
-            var trxData = spender.PrecomputeTransactionData(allSpendingOutputs); 
-            var execData = new TaprootExecutionData(inputIndex, scriptToExecute.ToTapScript(TapLeafVersion.C0).LeafHash) { SigHash = sighash };
+            var trxData = spender.PrecomputeTransactionData(allSpendingOutputs);
+            var execData = new TaprootExecutionData(inputIndex, scriptToExecute.TaprootV1LeafHash) { SigHash = sighash };
             var hash = spender.GetSignatureHashTaproot(trxData, execData);
 
             var key = new Key(Encoders.Hex.DecodeData(founderPrivateKey));
@@ -286,9 +286,9 @@ public List<string> FounderSignInvestorRecoveryTransactions(InvestorContext cont
             const TaprootSigHash sigHash = TaprootSigHash.Single | TaprootSigHash.AnyoneCanPay;
             
             var hash = stageTransaction.GetSignatureHashTaproot(new[] { investmentTransaction.Outputs[i+2] },
-                new TaprootExecutionData(0, 
-                        new NBitcoin.Script(scriptStages.Recover.ToBytes()).ToTapScript(TapLeafVersion.C0).LeafHash)
-                    { SigHash = sigHash });
+                new TaprootExecutionData(0,
+                        new NBitcoin.Script(scriptStages.Recover.ToBytes()).TaprootV1LeafHash)
+                { SigHash = sigHash });
 
             
             var signature = key.SignTaprootKeySpend(hash, sigHash);
@@ -329,8 +329,8 @@ public void AddWitScriptToInvestorRecoveryTransactions(InvestorContext context,
 
             var hash = stageTransaction.GetSignatureHashTaproot(new[] { investmentTransaction.Outputs[index + 2] },
                 new TaprootExecutionData(0,
-                        new NBitcoin.Script(projectScripts.Recover.ToBytes()).ToTapScript(TapLeafVersion.C0).LeafHash)
-                    { SigHash = sigHash });
+                        new NBitcoin.Script(projectScripts.Recover.ToBytes()).TaprootV1LeafHash)
+                { SigHash = sigHash });
             
             var investorSignature = key.SignTaprootKeySpend(hash, sigHash);
 
@@ -446,7 +446,7 @@ public Transaction RecoverEndOfProjectFunds(Network network, InvestorContext con
 
             var allSpendingOutputs = signingContext.Select(s => s.spendingOutput.TxOut).ToArray();
             var trxData = spender.PrecomputeTransactionData(allSpendingOutputs);
-            var execData = new TaprootExecutionData(inputIndex, scriptToExecute.ToTapScript(TapLeafVersion.C0).LeafHash) { SigHash = sighash };
+            var execData = new TaprootExecutionData(inputIndex, scriptToExecute.TaprootV1LeafHash) { SigHash = sighash };
             var hash = spender.GetSignatureHashTaproot(trxData, execData);
 
             var key = new Key(Encoders.Hex.DecodeData(investorPrivateKey));
@@ -566,7 +566,7 @@ public Transaction RecoverFundsNoPenalty(Network network, InvestorContext contex
 
             var allSpendingOutputs = signingContext.Select(s => s.spendingOutput.TxOut).ToArray();
             var trxData = spender.PrecomputeTransactionData(allSpendingOutputs);
-            var execData = new TaprootExecutionData(inputIndex, scriptToExecute.ToTapScript(TapLeafVersion.C0).LeafHash) { SigHash = sighash };
+            var execData = new TaprootExecutionData(inputIndex, scriptToExecute.TaprootV1LeafHash) { SigHash = sighash };
             var hash = spender.GetSignatureHashTaproot(trxData, execData);
 
             var key = new Key(Encoders.Hex.DecodeData(investorPrivateKey));
diff --git a/src/Angor/Client/Angor.Client.csproj b/src/Angor/Client/Angor.Client.csproj
index af92dace..ffa3b936 100644
--- a/src/Angor/Client/Angor.Client.csproj
+++ b/src/Angor/Client/Angor.Client.csproj
@@ -10,7 +10,7 @@
     <PackageReference Include="Blazored.SessionStorage" Version="2.4.0" />
     <PackageReference Include="Blockcore.Core" Version="1.2.42" />
     <PackageReference Include="HtmlAgilityPack" Version="1.11.71" />
-    <PackageReference Include="NBitcoin" Version="7.0.46" />
+    <PackageReference Include="NBitcoin" Version="7.0.25" />
     <PackageReference Include="Nostr.Client" Version="2.0.0" />
     <PackageReference Include="System.Text.Json" Version="9.0.0" />
     <PackageReference Include="QRCoder" Version="1.6.0" />
diff --git a/src/Angor/Client/Properties/launchSettings.json b/src/Angor/Client/Properties/launchSettings.json
index 05a3932a..b3370349 100644
--- a/src/Angor/Client/Properties/launchSettings.json
+++ b/src/Angor/Client/Properties/launchSettings.json
@@ -1,12 +1,5 @@
 {
-  "iisSettings": {
-    "windowsAuthentication": false,
-    "anonymousAuthentication": true,
-    "iisExpress": {
-      "applicationUrl": "http://localhost:15856",
-      "sslPort": 44308
-    }
-  },
+  "$schema": "https://json.schemastore.org/launchsettings.json",
   "profiles": {
     "http": {
       "commandName": "Project",
@@ -27,14 +20,6 @@
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }
-    },
-    "IIS Express": {
-      "commandName": "IISExpress",
-      "launchBrowser": true,
-      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
-      "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development"
-      }
     }
   }
 }
diff --git a/src/Angor/Shared/Angor.Shared.csproj b/src/Angor/Shared/Angor.Shared.csproj
index 1f948dbd..59b5ccde 100644
--- a/src/Angor/Shared/Angor.Shared.csproj
+++ b/src/Angor/Shared/Angor.Shared.csproj
@@ -12,7 +12,7 @@
   <ItemGroup>
     <PackageReference Include="Blockcore.Core" Version="1.2.42" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.0" />
-    <PackageReference Include="NBitcoin" Version="7.0.46" />
+    <PackageReference Include="NBitcoin" Version="7.0.25" />
     <PackageReference Include="Nostr.Client" Version="2.0.0" />
   </ItemGroup>
 
diff --git a/src/Angor/Shared/ProtocolNew/FounderTransactionActions.cs b/src/Angor/Shared/ProtocolNew/FounderTransactionActions.cs
index 0bf7c039..6c1c3f38 100644
--- a/src/Angor/Shared/ProtocolNew/FounderTransactionActions.cs
+++ b/src/Angor/Shared/ProtocolNew/FounderTransactionActions.cs
@@ -62,9 +62,7 @@ public SignatureInfo SignInvestorRecoveryTransactions(ProjectInfo projectInfo, s
         {
             var scriptStages = _investmentScriptBuilder.BuildProjectScriptsForStage(projectInfo, investorKey, stageIndex, secretHash);
 
-            var tapScript = new NBitcoin.Script(scriptStages.Recover.ToBytes()).ToTapScript(TapLeafVersion.C0);
-
-            var execData = new TaprootExecutionData(stageIndex, tapScript.LeafHash) { SigHash = sigHash };
+            var execData = new TaprootExecutionData(stageIndex, new NBitcoin.Script(scriptStages.Recover.ToBytes()).TaprootV1LeafHash) { SigHash = sigHash };
             var hash = nbitcoinRecoveryTransaction.GetSignatureHashTaproot(outputs, execData);
 
             var sig = key.SignTaprootKeySpend(hash, sigHash).ToString();
@@ -126,9 +124,7 @@ public TransactionInfo SpendFounderStage(ProjectInfo projectInfo, IEnumerable<st
             var scriptToExecute = new NBitcoin.Script(input.WitScript[1]);
             var controlBlock = input.WitScript[2];
 
-            var tapScript = scriptToExecute.ToTapScript(TapLeafVersion.C0);
-
-            var execData = new TaprootExecutionData(inputIndex, tapScript.LeafHash) { SigHash = sigHash };
+            var execData = new TaprootExecutionData(inputIndex, scriptToExecute.TaprootV1LeafHash) { SigHash = sigHash };
             var hash = spendingTransaction.GetSignatureHashTaproot(trxData, execData);
             
             var sig = key.SignTaprootKeySpend(hash, sigHash);
diff --git a/src/Angor/Shared/ProtocolNew/InvestorTransactionActions.cs b/src/Angor/Shared/ProtocolNew/InvestorTransactionActions.cs
index 83ae9f43..4378d493 100644
--- a/src/Angor/Shared/ProtocolNew/InvestorTransactionActions.cs
+++ b/src/Angor/Shared/ProtocolNew/InvestorTransactionActions.cs
@@ -246,9 +246,7 @@ public Transaction AddSignaturesToRecoverSeederFundsTransaction(ProjectInfo proj
             var scriptStages = _investmentScriptBuilder.BuildProjectScriptsForStage(projectInfo, investorKey, stageIndex, secretHash);
             var controlBlock = _taprootScriptBuilder.CreateControlBlock(scriptStages, _ => _.Recover);
 
-            var tapScript = new NBitcoin.Script(scriptStages.Recover.ToBytes()).ToTapScript(TapLeafVersion.C0);
-
-            var execData = new TaprootExecutionData(stageIndex, tapScript.LeafHash) { SigHash = sigHash };
+            var execData = new TaprootExecutionData(stageIndex, new NBitcoin.Script(scriptStages.Recover.ToBytes()).TaprootV1LeafHash) { SigHash = sigHash };
             var hash = nbitcoinRecoveryTransaction.GetSignatureHashTaproot(outputs, execData);
 
             _logger.LogInformation($"project={projectInfo.ProjectIdentifier}; investor-pubkey={key.PubKey.ToHex()}; stage={stageIndex}; hash={hash}");
@@ -292,9 +290,7 @@ public bool CheckInvestorRecoverySignatures(ProjectInfo projectInfo, Transaction
         {
             var scriptStages = _investmentScriptBuilder.BuildProjectScriptsForStage(projectInfo, investorKey, stageIndex, secretHash);
 
-            var tapScript = new NBitcoin.Script(scriptStages.Recover.ToBytes()).ToTapScript(TapLeafVersion.C0);
-
-            var execData = new TaprootExecutionData(stageIndex, tapScript.LeafHash) { SigHash = sigHash };
+            var execData = new TaprootExecutionData(stageIndex, new NBitcoin.Script(scriptStages.Recover.ToBytes()).TaprootV1LeafHash) { SigHash = sigHash };
             var hash = nBitcoinRecoveryTransaction.GetSignatureHashTaproot(outputs, execData);
             var sig = founderSignatures.Signatures.First(f => f.StageIndex == stageIndex).Signature;
 
diff --git a/src/Angor/Shared/ProtocolNew/Scripts/TaprootScriptBuilder.cs b/src/Angor/Shared/ProtocolNew/Scripts/TaprootScriptBuilder.cs
index a820c479..9fad87ee 100644
--- a/src/Angor/Shared/ProtocolNew/Scripts/TaprootScriptBuilder.cs
+++ b/src/Angor/Shared/ProtocolNew/Scripts/TaprootScriptBuilder.cs
@@ -24,8 +24,8 @@ public Script CreateControlBlock(ProjectScripts scripts, Expression<Func<Project
         var treeInfo = BuildTaprootSpendInfo(scripts);
 
         var script = scriptSelector.Compile().Invoke(scripts);
-            
-        ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(script.ToBytes()).ToTapScript(TapLeafVersion.C0));
+
+        ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(script.ToBytes()), (byte)TaprootConstants.TAPROOT_LEAF_TAPSCRIPT);
 
         return new Script(controlBlock.ToBytes());
     }
@@ -78,7 +78,7 @@ public Script CreateControlBlock(ProjectScripts scripts, Expression<Func<Project
             throw new Exception("no secret found that matches the given scripts");
         }
 
-        ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(execute.ToBytes()).ToTapScript(TapLeafVersion.C0));
+        ControlBlock controlBlock = treeInfo.GetControlBlock(new NBitcoin.Script(execute.ToBytes()), (byte)TaprootConstants.TAPROOT_LEAF_TAPSCRIPT);
 
         return (new Script(controlBlock.ToBytes()), execute, secretHashes.ToArray());
     }
@@ -89,12 +89,7 @@ private static TaprootSpendInfo BuildTaprootSpendInfo(ProjectScripts scripts)
 
         var scriptWeights = BuildTaprootScripts(scripts);
 
-        // Transform the scripts to TapScript format
-        var tapScriptWeights = scriptWeights
-            .Select(sw => (sw.Item1, sw.Item2.ToTapScript(TapLeafVersion.C0)))
-            .ToList();
-
-        var treeInfo = TaprootSpendInfo.WithHuffmanTree(taprootKey, tapScriptWeights.ToArray());
+        var treeInfo = TaprootSpendInfo.WithHuffmanTree(taprootKey, scriptWeights.ToArray());
 
         return treeInfo;
     }
diff --git a/src/Angor/Shared/ProtocolNew/SeederTransactionActions.cs b/src/Angor/Shared/ProtocolNew/SeederTransactionActions.cs
index 63080df8..54854f01 100644
--- a/src/Angor/Shared/ProtocolNew/SeederTransactionActions.cs
+++ b/src/Angor/Shared/ProtocolNew/SeederTransactionActions.cs
@@ -82,9 +82,7 @@ public Transaction AddSignaturesToRecoverSeederFundsTransaction(ProjectInfo proj
 
             var controlBlock = _taprootScriptBuilder.CreateControlBlock(projectScripts, _ => _.Recover);
 
-            var tapScript = new NBitcoin.Script(projectScripts.Recover.ToBytes()).ToTapScript(TapLeafVersion.C0);
-
-            var execData = new TaprootExecutionData(stageIndex, tapScript.LeafHash) { SigHash = sigHash };
+            var execData = new TaprootExecutionData(stageIndex, new NBitcoin.Script(projectScripts.Recover.ToBytes()).TaprootV1LeafHash) { SigHash = sigHash };
             var hash = nbitcoinRecoveryTransaction.GetSignatureHashTaproot(outputs, execData);
 
             _logger.LogInformation($"project={projectInfo.ProjectIdentifier}; seeder-pubkey={key.PubKey.ToHex()}; stage={stageIndex}; hash={hash}");
diff --git a/src/Angor/Shared/ProtocolNew/TransactionBuilders/SpendingTransactionBuilder.cs b/src/Angor/Shared/ProtocolNew/TransactionBuilders/SpendingTransactionBuilder.cs
index 6f975b17..a68ce9d8 100644
--- a/src/Angor/Shared/ProtocolNew/TransactionBuilders/SpendingTransactionBuilder.cs
+++ b/src/Angor/Shared/ProtocolNew/TransactionBuilders/SpendingTransactionBuilder.cs
@@ -77,7 +77,7 @@ public TransactionInfo BuildRecoverInvestorRemainingFundsInProject(string invest
                     input.WitScript[input.WitScript.PushCount - 2]); //control block is the last and execute one before it
 
             var hash = spendingTrx.GetSignatureHashTaproot(trxData,
-                new TaprootExecutionData(inputIndex, scriptToExecute.ToTapScript(TapLeafVersion.C0).LeafHash) { SigHash = sigHash });
+                new TaprootExecutionData(inputIndex, scriptToExecute.TaprootV1LeafHash) { SigHash = sigHash });
 
             var sig = key.SignTaprootKeySpend(hash, sigHash);