diff --git a/src/dexorder/base/fork.py b/src/dexorder/base/fork.py
index 875a6c9..a66c770 100644
--- a/src/dexorder/base/fork.py
+++ b/src/dexorder/base/fork.py
@@ -58,15 +58,16 @@ class DisjointFork:
     def __init__(self, block: Block, root: Block):
         self.height = block.height
         self.hash = block.hash
-        self.parent = root
+        self.parent = root.hash
         self.disjoint = True
+        self.root = root
 
     def __contains__(self, item):
         if item.height > self.height:
             return False # item is in the future
-        if item.height < self.parent.height:
+        if item.height < self.root.height:
             return True # item is ancient
-        return item.hash in (self.hash, self.parent.hash)
+        return item.hash in (self.hash, self.parent)
 
     def __str__(self):
         return f'{self.height}_[{self.hash.hex()}->{self.parent.hash.hex()}]'
diff --git a/src/dexorder/blocktime.py b/src/dexorder/blocktime.py
index 263667e..cff9806 100644
--- a/src/dexorder/blocktime.py
+++ b/src/dexorder/blocktime.py
@@ -12,7 +12,7 @@ log = logging.getLogger(__name__)
 @alru_cache(maxsize=1024)
 async def get_block_timestamp(blockhash) -> int:
     try:
-        return current_blockstate.get().by_hash[blockhash]
+        return current_blockstate.get().by_hash[blockhash].timestamp
     except (LookupError, KeyError):
         pass
     response = await current_w3.get().provider.make_request('eth_getBlockByHash', [blockhash, False])
diff --git a/src/dexorder/contract/dexorder.py b/src/dexorder/contract/dexorder.py
index 43acd6a..7833c81 100644
--- a/src/dexorder/contract/dexorder.py
+++ b/src/dexorder/contract/dexorder.py
@@ -39,7 +39,7 @@ def get_by_chain(d):
         return d[chain_id]
     except KeyError:
         _load_chain(chain_id)
-    return d[chain_id]
+    return d.get(chain_id)
 
 def get_factory_contract() -> ContractProxy:
     return get_by_chain(_factory)
diff --git a/src/dexorder/database/model/block.py b/src/dexorder/database/model/block.py
index 40a7c71..3cf7d00 100644
--- a/src/dexorder/database/model/block.py
+++ b/src/dexorder/database/model/block.py
@@ -27,7 +27,7 @@ class Block(Base):
         return raw if type(raw) is int else hexint(raw)
 
     def __str__(self):
-        return f'{self.height}_{self.hash.hex()[:5]}'
+        return f'{self.height}_{self.hash.hex()[2:7]}'
 
 
 current_block = ContextVar[Block]('Block.cur')  # block for the current thread
diff --git a/src/dexorder/ohlc.py b/src/dexorder/ohlc.py
index 0039635..d2f9fde 100644
--- a/src/dexorder/ohlc.py
+++ b/src/dexorder/ohlc.py
@@ -281,19 +281,20 @@ class OHLCRepository:
     def dir(self):
         if self._dir is None:
             self._dir = config.ohlc_dir
-        if self._dir is None:
-            raise ValueError('OHLCRepository needs an ohlc_dir configured')
         return self._dir
 
 
     @property
     def quotes(self) -> dict[str,tuple[int,str]]:
         if self._quotes is None:
-            try:
-                with open(os.path.join(self.dir, quotes_path()), 'r') as f:
-                    self._quotes = json.load(f)
-            except FileNotFoundError:
+            if self._dir is None:
                 self._quotes = {}
+            else:
+                try:
+                    with open(os.path.join(self.dir, quotes_path()), 'r') as f:
+                        self._quotes = json.load(f)
+                except FileNotFoundError:
+                    self._quotes = {}
         return self._quotes
 
 
diff --git a/src/dexorder/progressor.py b/src/dexorder/progressor.py
index 61cada6..7b0d356 100644
--- a/src/dexorder/progressor.py
+++ b/src/dexorder/progressor.py
@@ -95,7 +95,7 @@ class BlockProgressor(metaclass=ABCMeta):
                     try:
                         parsed = event.process_log(log_event) if event is not None else log_event
                     except (LogTopicError, MismatchedABI) as e:
-                        log.warning(f'logevent parse error {e}\n{log_event}')
+                        # log.debug(f'logevent parse error {e}\n{log_event}') # this happens for Swap events from non-Uniswap pools
                         parsed = NARG  # need a placeholder
                     parsed_events.append(parsed)
                 # todo try/except for known retryable errors
diff --git a/src/dexorder/runner.py b/src/dexorder/runner.py
index ca5de55..04759b6 100644
--- a/src/dexorder/runner.py
+++ b/src/dexorder/runner.py
@@ -9,7 +9,7 @@ from websockets.exceptions import ConnectionClosedError
 
 from dexorder import Blockchain, db, current_pub, async_yield, current_w3, config, NARG
 from dexorder.base.chain import current_chain, current_clock, BlockClock
-from dexorder.base.fork import current_fork, Fork
+from dexorder.base.fork import current_fork, Fork, DisjointFork
 from dexorder.blockchain.connection import create_w3_ws, create_w3
 from dexorder.blockstate import BlockState, current_blockstate
 from dexorder.blockstate.diff import DiffEntryItem
@@ -266,7 +266,7 @@ class BlockStateRunner(BlockProgressor):
                 # initialize
                 self.state = BlockState(block)
                 current_blockstate.set(self.state)
-                fork = Fork([block.hash], height=block.height)
+                fork: Fork = Fork([block.hash], height=block.height)
                 log.info('Created new empty root state')
             else:
                 fork = self.state.add_block(block)
@@ -321,15 +321,17 @@ class BlockStateRunner(BlockProgressor):
                 promotion_height = latest_block.get().height - confirm_offset
                 new_root_fork = None
                 if fork.disjoint:
+                    fork: DisjointFork
                     # individually check the fork's head and ancestor
                     if fork.height <= promotion_height:
                         new_root_fork = fork
                     else:
                         state = current_blockstate.get()
-                        parent_block = state.by_hash[fork.parent]
+                        parent_block = fork.root
                         if parent_block.height <= promotion_height:
                             new_root_fork = state.fork(parent_block)
                 else:
+                    fork: Fork
                     # non-disjoint, contiguous fork
                     if fork.height <= promotion_height:
                         new_root_fork = fork