minor fix

ds.py

@@ -204,7 +204,8 @@ def valid_block(self, block, prev_block):
             if block.header.index == 0:
                 pass  # TODO: re-calculate genesis' tx sign.
             else:
-                self.valid_transaction(tx)
+                if not self.valid_transaction(tx):
+                    return True
 
         # TODO: Valid timestamp
 
@@ -218,14 +219,14 @@ def valid_block(self, block, prev_block):
     def valid_transaction(self, tx):
         if tx.sender == '':
             # mint
-            pass  # TODO: minting addr.
+            return True  # TODO: minting addr.
         else:
             raw_tx = Transaction(tx.sender, tx.receiver, tx.amount, tx.data)
             raw_tx_string = json.dumps(raw_tx.toDict(), sort_keys=True).encode()
             raw_tx_digest = sha256(raw_tx_string).digest()
 
             vk = VerifyingKey.from_string(bytearray.fromhex(tx.sender), curve=SECP256k1)
-            return vk.verify(bytes(bytearray.fromhex(tx.sign)), raw_tx_digest)
+            return vk.verify(bytearray.fromhex(tx.sign), raw_tx_digest)
 
 
 if __name__ == "__main__":

main.py

@@ -23,7 +23,7 @@
 
 
 global sk
-global vk
+# global vk
 global Addr
 
 
@@ -111,7 +111,7 @@ def transaction_new():
     return jsonify({'res': index}), 201
 
 
-# Curl http://127.0.0.1:8327/pool
+# Curl http://127.0.0.1:8327/transaction/pool
 @app.route('/transaction/pool')
 def transaction_pool():
     return jsonify({'res': [tx.toDict() for tx in bc.transaction_pool]}), 200
@@ -169,9 +169,9 @@ def parser():
     Addr = wallet.public_key.decode()
     print(Addr)
 
-    # Generate sk & vk
+    # Generate sk  # & vk
     private_key = bytearray.fromhex(wallet.private_key)
     sk = SigningKey.from_string(private_key, curve=SECP256k1)
-    vk = sk.verifying_key  # wallet.public_key == vk.to_string("compressed").hex()
+    # vk = sk.verifying_key  # wallet.public_key == vk.to_string("compressed").hex()
 
     app.run(host='0.0.0.0', port=port)