diff --git a/chaind/adapters/new.py b/chaind/adapters/new.py
index 21e587c..1ebbbbb 100644
--- a/chaind/adapters/new.py
+++ b/chaind/adapters/new.py
@@ -1,3 +1,6 @@
+# standard imports
+import logging
+
 # external imports
 from chainlib.error import RPCException
 from chainqueue import (
@@ -11,6 +14,8 @@ from chainqueue.store.fs import (
         )
 from shep.store.file import SimpleFileStoreFactory
 
+logg = logging.getLogger(__name__)
+
 
 class ChaindFsAdapter:
 
@@ -26,8 +31,8 @@ class ChaindFsAdapter:
 
     def put(self, signed_tx):
         cache_tx = self.deserialize(signed_tx)
-        self.store.put(cache_tx.tx_hash, signed_tx)
-        return cache_tx.tx_hash
+        self.store.put(cache_tx.hash, signed_tx)
+        return cache_tx.hash
 
 
     def get(self, tx_hash):
@@ -47,6 +52,14 @@ class ChaindFsAdapter:
         return self.store.deferred()
 
 
+    def succeed(self, block, tx):
+        return self.store.final(tx.hash, block, tx, error=False)
+
+
+    def fail(self, block, tx):
+        return self.store.final(tx.hash, block, tx, error=True)
+
+
     def enqueue(self, tx_hash):
         return self.store.enqueue(tx_hash)
 
diff --git a/chaind/driver.py b/chaind/driver.py
index 6d7d7f1..cc73ac2 100644
--- a/chaind/driver.py
+++ b/chaind/driver.py
@@ -20,7 +20,7 @@ class QueueDriver:
         for i in range(c):
             self.adapter.enqueue(txs[i])
             if self.throttler != None:
-                self.throttler.inc()
+                self.throttler.inc(txs[i].hash)
         return c
 
 
diff --git a/chaind/filter.py b/chaind/filter.py
new file mode 100644
index 0000000..2b374e3
--- /dev/null
+++ b/chaind/filter.py
@@ -0,0 +1,19 @@
+# external imports
+from chainlib.status import Status as TxStatus
+
+
+class StateFilter:
+
+    def __init__(self, adapter, throttler=None):
+        self.adapter = adapter
+        self.throttler = throttler
+
+
+    def filter(self, conn, block, tx, session=None):
+        cache_tx = self.adapter.get(tx.hash)
+        if tx.status == TxStatus.SUCCESS:
+            self.adapter.succeed(block, tx)
+        else:
+            self.adapter.fail(block, tx)
+        if self.throttler != None:
+            self.throttler.dec(tx.hash)
diff --git a/tests/test_fs.py b/tests/test_fs.py
index 7340bc2..86ca251 100644
--- a/tests/test_fs.py
+++ b/tests/test_fs.py
@@ -10,10 +10,12 @@ import hashlib
 from chainlib.chain import ChainSpec
 from chainqueue.cache import CacheTokenTx
 from chainlib.error import RPCException
+from chainlib.status import Status as TxStatus
 
 # local imports
 from chaind.adapters.new import ChaindFsAdapter
 from chaind.driver import QueueDriver
+from chaind.filter import StateFilter
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()
@@ -26,7 +28,7 @@ class MockCacheAdapter(CacheTokenTx):
         h = hashlib.sha256()
         h.update(v.encode('utf-8'))
         z = h.digest()
-        tx.tx_hash = z.hex()
+        tx.hash = z.hex()
         return tx
 
 
@@ -46,6 +48,14 @@ class MockDispatcher:
         pass
 
 
+class MockTx:
+
+    def __init__(self, tx_hash, status=TxStatus.SUCCESS):
+        self.hash = tx_hash
+        self.status = status
+
+
+
 class TestChaindFs(unittest.TestCase):
 
     def setUp(self):
@@ -89,5 +99,27 @@ class TestChaindFs(unittest.TestCase):
         self.assertEqual(len(txs), 1)
 
 
+    def test_fs_filter(self):
+        drv = QueueDriver(self.adapter)
+
+        data = os.urandom(128).hex()
+        hsh = self.adapter.put(data)
+        
+        fltr = StateFilter(self.adapter)
+        tx = MockTx(hsh)
+        fltr.filter(None, None, tx)
+
+
+    def test_fs_filter_fail(self):
+        drv = QueueDriver(self.adapter)
+
+        data = os.urandom(128).hex()
+        hsh = self.adapter.put(data)
+        
+        fltr = StateFilter(self.adapter)
+        tx = MockTx(hsh, TxStatus.ERROR)
+        fltr.filter(None, None, tx)
+
+
 if __name__ == '__main__':
     unittest.main()