diff --git a/onionr/communicator.py b/onionr/communicator.py
index 00f4d31c..565b59cf 100755
--- a/onionr/communicator.py
+++ b/onionr/communicator.py
@@ -669,23 +669,28 @@ class OnionrCommunicate:
         '''
         retData = False
         try:
-            metadata['pow']
-            token = metadata['pow']
+            metadata['powToken']
+            metadata['powHash']
+            token = metadata['powToken']
         except KeyError:
             return False
         dataLen = len(blockContent)
-        expectedHash = self._crypto.blake2bHash(blockContent)
+        expectedHash = self._crypto.blake2bHash(metadata['powToken'] + blockContent)
         difficulty = 0
-        if token == expectedHash:
+        if metadata['powHash'] == expectedHash:
             difficulty = math.floor(dataLen/1000000)
 
             mainHash = '0000000000000000000000000000000000000000000000000000000000000000'#nacl.hash.blake2b(nacl.utils.random()).decode()
             puzzle = mainHash[0:difficulty]
 
-            if token[0:difficulty] == puzzle:
+            if metadata['powHash'][0:difficulty] == puzzle:
                 logger.info('Validated block pow')
                 retData = True
-                
+            else:
+                logger.warn("Invalid token")
+        else:
+            logger.warn("Invalid token2")
+
         return retData
 
     def urlencode(self, data):
diff --git a/onionr/core.py b/onionr/core.py
index 74a703a4..ab315041 100644
--- a/onionr/core.py
+++ b/onionr/core.py
@@ -635,9 +635,17 @@ class Core:
         # wait for proof to complete
         while True:
             powToken = powProof.getResult()
-            if powToken != False:
+            if powToken == False:
+                time.sleep(0.3)
+                continue
+            powHash = powToken[0]
+            powToken = base64.b64encode(powToken[1])
+            try:
+                powToken = powToken.decode()
+            except AttributeError:
+                pass
+            finally:
                 break
-            time.sleep(0.3)
 
         try:
             data.decode()
@@ -645,7 +653,7 @@ class Core:
             data = data.encode()
 
         retData = ''
-        metadata = {'type': header, 'pow': powToken}
+        metadata = {'type': header, 'powHash': powHash, 'powToken': powToken}
         sig = {}
 
         metadata = json.dumps(metadata)
diff --git a/onionr/onionrproofs.py b/onionr/onionrproofs.py
index 02fee043..d9ece436 100644
--- a/onionr/onionrproofs.py
+++ b/onionr/onionrproofs.py
@@ -44,6 +44,7 @@ class POW:
             blockCheckCount += 1
             hbCount += 1
             '''
+            rand = nacl.utils.random()
             token = nacl.hash.blake2b(nacl.utils.random() + self.data).decode()
             #print(token)
             if self.puzzle == token[0:self.difficulty]:
@@ -57,7 +58,7 @@ class POW:
             if self.reporting:
                 logger.info('Found token ' + token, timestamp=True)
                 logger.info('took ' + str(endTime - startTime) + ' seconds', timestamp=True)
-            self.result = token
+            self.result = (token, rand)
 
     def __init__(self, data, bitcoinNode=''):
         self.foundHash = False