diff --git a/src/main.py b/src/main.py
index 3cbd532..3ed909f 100644
--- a/src/main.py
+++ b/src/main.py
@@ -30,15 +30,14 @@ def parse_arguments():
 
     # TODO pokracovani
     
-    transaction_hashes = [calculate_txid(COINBASE_TRANSACTION)] + [calculate_txid(json_transaction) for json_transaction in mempool.valid_transactions]
+    block_transactions = [COINBASE_TRANSACTION] + mempool.valid_transactions
+    
+    transaction_hashes = [calculate_txid(COINBASE_TRANSACTION)] + [calculate_txid(json_transaction) for json_transaction in block_transactions[1:]]
     block_hash = block_mining(transaction_hashes).hex()
 
-    #wtxids =  ["0000000000000000000000000000000000000000000000000000000000000000"] + transaction_hashes[1:]
-    #wtxids =  ["0000000000000000000000000000000000000000000000000000000000000000"] + transaction_hashes
-    wtxids =  transaction_hashes
-
-    witness_commitment = calculate_witness_commitment(wtxids)
+    wtxids =  ["0000000000000000000000000000000000000000000000000000000000000000"] + transaction_hashes[1:]
 
+    witness_commitment = calculate_witness_commitment(wtxids)    
     scriptpubkey_wc = '6a24aa21a9ed' + witness_commitment
 
     COINBASE_TRANSACTION["vout"][1]["scriptpubkey"] = scriptpubkey_wc