diff --git a/db/src/storage.rs b/db/src/storage.rs
index 0ea89ac3..b792d986 100644
--- a/db/src/storage.rs
+++ b/db/src/storage.rs
@@ -372,7 +372,7 @@ impl Storage {
 	///   all transaction meta is removed
 	///   DOES NOT update best block
 	fn decanonize_block(&self, context: &mut UpdateContext, hash: &H256) -> Result<(), Error> {
-		trace!(target: "reorg", "Decanonizing block {}", hash);
+		trace!(target: "reorg", "Decanonizing block {}", hash.to_reversed_str());
 
 		// ensure that block is of the main chain
 		try!(self.block_number(hash).ok_or(Error::not_main(hash)));
diff --git a/sync/src/local_node.rs b/sync/src/local_node.rs
index 4672039d..4124fa36 100644
--- a/sync/src/local_node.rs
+++ b/sync/src/local_node.rs
@@ -131,11 +131,11 @@ impl<T, U, V> LocalNode<T, U, V> where T: SynchronizationTaskExecutor + PeersCon
 	}
 
 	pub fn on_peer_transaction(&self, peer_index: usize, message: types::Tx) {
-		trace!(target: "sync", "Got `transaction` message from peer#{}. Transaction hash: {}", peer_index, message.transaction.hash());
+		trace!(target: "sync", "Got `transaction` message from peer#{}. Transaction hash: {}", peer_index, message.transaction.hash().to_reversed_str());
 	}
 
 	pub fn on_peer_block(&self, peer_index: usize, message: types::Block) {
-		trace!(target: "sync", "Got `block` message from peer#{}. Block hash: {}", peer_index, message.block.hash());
+		trace!(target: "sync", "Got `block` message from peer#{}. Block hash: {}", peer_index, message.block.hash().to_reversed_str());
 
 		// try to process new block
 		self.client.lock().on_peer_block(peer_index, message.block);
diff --git a/sync/src/synchronization_client.rs b/sync/src/synchronization_client.rs
index dbe2dffa..72a2db58 100644
--- a/sync/src/synchronization_client.rs
+++ b/sync/src/synchronization_client.rs
@@ -599,7 +599,13 @@ impl<T> SynchronizationClient<T> where T: TaskExecutor {
 				let new_blocks_hashes = hashes.split_off(new_block_index);
 				let new_blocks_headers = headers.split_off(new_block_index);
 				let new_blocks_hashes_len = new_blocks_hashes.len();
-				trace!(target: "sync", "Sch. {} headers from peer#{}. First {:?}, last: {:?}", new_blocks_hashes_len, peer_index, new_blocks_hashes[0], new_blocks_hashes[new_blocks_hashes_len - 1]);
+				trace!(
+					target: "sync", "Sch. {} headers from peer#{}. First {:?}, last: {:?}",
+					new_blocks_hashes_len,
+					peer_index,
+					new_blocks_hashes[0].to_reversed_str(),
+					new_blocks_hashes[new_blocks_hashes_len - 1].to_reversed_str()
+				);
 				chain.schedule_blocks_headers(new_blocks_hashes, new_blocks_headers);
 				// remember peer as useful
 				self.peers.useful_peer(peer_index);
@@ -631,7 +637,12 @@ impl<T> SynchronizationClient<T> where T: TaskExecutor {
 						BlockState::Unknown => {
 							if self.state.is_synchronizing() {
 								// when synchronizing, we tend to receive all blocks in-order
-								trace!(target: "sync", "Ignoring block {} from peer#{}, because its parent is unknown and we are synchronizing", block_hash, peer_index);
+								trace!(
+									target: "sync",
+									"Ignoring block {} from peer#{}, because its parent is unknown and we are synchronizing",
+									block_hash.to_reversed_str(),
+									peer_index
+								);
 								// remove block from current queue
 								chain.forget(&block_hash);
 								// remove orphaned blocks
@@ -826,7 +837,7 @@ impl<T> SynchronizationClient<T> where T: TaskExecutor {
 				chain.information());
 		}
 
-		// finally - ask all known peers for their best blocks inventory, in case if some peer 
+		// finally - ask all known peers for their best blocks inventory, in case if some peer
 		// has lead us to the fork
 		{
 			let mut executor = self.executor.lock();
@@ -1034,7 +1045,7 @@ pub mod tests {
 
 		let client = SynchronizationClient::new(config, &handle, executor.clone(), chain.clone());
 		(event_loop, handle, executor, chain, client)
-	} 
+	}
 
 	#[test]
 	fn synchronization_saturated_on_start() {
diff --git a/sync/src/synchronization_server.rs b/sync/src/synchronization_server.rs
index aec9d303..3bb95ce9 100644
--- a/sync/src/synchronization_server.rs
+++ b/sync/src/synchronization_server.rs
@@ -98,7 +98,7 @@ impl SynchronizationServer {
 			};
 
 			match server_task {
-				// `getdata` => `notfound` + `block` + ... 
+				// `getdata` => `notfound` + `block` + ...
 				Some((peer_index, ServerTask::ServeGetData(inventory))) => {
 					let mut unknown_items: Vec<InventoryVector> = Vec::new();
 					let mut new_tasks: Vec<ServerTask> = Vec::new();
@@ -279,7 +279,13 @@ impl Server for SynchronizationServer {
 
 	fn serve_getblocks(&self, peer_index: usize, message: types::GetBlocks) {
 		if let Some(best_common_block) = self.locate_known_block_hash(message.block_locator_hashes) {
-			trace!(target: "sync", "Best common block with peer#{} is block#{}: {:?}", peer_index, best_common_block.number, best_common_block.hash);
+			trace!(
+				target: "sync",
+				"Best common block with peer#{} is block#{}: {:?}",
+				peer_index,
+				best_common_block.number,
+				best_common_block.hash.to_reversed_str(),
+			);
 			self.queue.lock().add_task(peer_index, ServerTask::ServeGetBlocks(best_common_block, message.hash_stop));
 		}
 		else {
diff --git a/verification/src/queue.rs b/verification/src/queue.rs
index a8999acd..00af11cd 100644
--- a/verification/src/queue.rs
+++ b/verification/src/queue.rs
@@ -157,7 +157,7 @@ impl Queue {
 				items.push_front(hash, ScheduleItem::Continued(item.block(), num));
 			},
 			Err(e) => {
-				trace!(target: "verification", "Verification of block {} failed: {:?}", &hash, e);
+				trace!(target: "verification", "Verification of block {} failed: {:?}", hash.to_reversed_str(), e);
 				let mut invalid = self.invalid.write();
 				let mut processing = self.processing.write();