diff --git a/examples/test_client.py b/examples/test_client.py
index 2bee2a1..9601cad 100644
--- a/examples/test_client.py
+++ b/examples/test_client.py
@@ -10,6 +10,9 @@ from ssb.muxrpc import MuxRPCAPI, MuxRPCAPIException
 from ssb.packet_stream import PacketStream, PSMessageType
 from ssb.util import load_ssb_secret
 
+import hashlib
+import base64
+
 
 api = MuxRPCAPI()
 
@@ -52,6 +55,9 @@ async def test_client():
         if msg.type.name == 'BUFFER':
             img_data += msg.data
         if msg.type.name == 'JSON' and msg.data == b'true':
+            print(base64.b64encode(hashlib.sha256(img_data).digest()))
+            assert base64.b64encode(hashlib.sha256(img_data).digest()
+                                    ) == b'H4MFPEWh7gAbZG/4TaSsaJI6Hi8lh7PItrHTnaxoSfg='
             with open('./Autonomouscar1956.jpg', 'wb') as f:
                 f.write(img_data)
 
diff --git a/ssb/packet_stream.py b/ssb/packet_stream.py
index b8f1f36..b672ac2 100644
--- a/ssb/packet_stream.py
+++ b/ssb/packet_stream.py
@@ -135,7 +135,6 @@ class PacketStream(object):
             if not header or header == b'\x00' * 9:
                 return
             flags, length, req = struct.unpack('>BIi', header)
-            logger.debug('flags=%s length=%s req=%s', flags, length, req)
 
             n_packets = ceil(length / 4096)