diff --git a/Ledger.cpp b/Ledger.cpp
index a9b171ebc..08cf0c5b4 100644
--- a/Ledger.cpp
+++ b/Ledger.cpp
@@ -320,6 +320,13 @@ void Ledger::saveAcceptedLedger(Ledger::pointer ledger)
 
 	ScopedLock sl(theApp->getDBLock());
 	theApp->getDB()->executeSQL(sql.c_str());
+
+	// write out dirty nodes
+	while(ledger->mTransactionMap->flushDirty(64, TRANSACTION_NODE, ledger->mLedgerSeq))
+	{ ; }
+	while(ledger->mAccountStateMap->flushDirty(64, ACCOUNT_NODE, ledger->mLedgerSeq))
+	{ ; }
+
 }
 
 Ledger::pointer Ledger::getSQL(const std::string& sql)
@@ -457,61 +464,6 @@ bool Ledger::load(const uint256& hash)
 	return(false);
 }
 
-void Ledger::save()
-{
-	Database* db=theApp->getDB();
-
-	string sql="SELECT ledgerID from Ledgers where hash=";
-	string hashStr;
-	db->escape(mHash.begin(),mHash.GetSerializeSize(),hashStr);
-	sql.append(hashStr);
-
-	if(db->executeSQL(sql.c_str()))
-	{
-		db->startIterRows();
-
-		if(db->getNextRow())
-		{	// this Ledger is already in the DB. We don't need to do anything since the hashes are the same
-			db->endIterRows();	
-		}else
-		{	// this ledger isn't in the DB
-			char buf[100];
-			sql="INSERT INTO Ledgers (LedgerIndex,Hash,ParentHash,FeeHeld) values (";
-			sprintf(buf, "%d", mIndex);
-			sql.append(buf);
-			sql.append(",");
-			sql.append(buf);
-			sql.append(",");
-			sql.append(buf);
-			sql.append(",");
-			sprintf(buf, "%llu", mFeeHeld);
-			sql.append(buf);
-			sql.append(")");
-
-			sql="SELECT LAST_INSERT_ID()";
-
-		}
-	}
-}
-
-int64 Ledger::getAmountHeld(const uint160& address)
-{
-	if(mAccounts.count(address))
-	{
-		return(mAccounts[address].first);
-	}
-	return(0);
-}
-
-Ledger::Account* Ledger::getAccount(const uint160& address)
-{
-	if(mAccounts.count(address))
-	{
-		return(&(mAccounts[address]));
-	}
-	return(NULL);
-}
-
 uint256& Ledger::getSignature()
 {
 	if(!mValidSig) sign();
@@ -524,17 +476,6 @@ void Ledger::publishValidation()
 	theApp->getConnectionPool().relayMessage(NULL,packet);
 }
 
-void Ledger::sign()
-{
-	// TODO: Ledger::sign()
-}
-
-
-void Ledger::hash()
-{
-	// TODO: Ledger::hash()
-}
-
 /*
 uint64 Ledger::getAmount(std::string address)
 {
diff --git a/SHAMap.cpp b/SHAMap.cpp
index 6f60db7f5..24943b8e8 100644
--- a/SHAMap.cpp
+++ b/SHAMap.cpp
@@ -126,7 +126,7 @@ SHAMapLeafNode::pointer SHAMap::getLeaf(const SHAMapNode& id, const uint256& has
 	if(leaf) return returnLeaf(leaf, modify);
 
 	std::vector<unsigned char> leafData;
-	if(!fetchLeafNode(hash, id, leafData)) throw SHAMapException(MissingNode);
+	if(!fetchNode(hash, leafData)) throw SHAMapException(MissingNode);
 	leaf=SHAMapLeafNode::pointer(new SHAMapLeafNode(id, leafData, mSeq));
 	if(leaf->getNodeHash()!=hash) throw SHAMapException(InvalidNode);
 	mLeafByID[id]=leaf;
@@ -139,7 +139,7 @@ SHAMapInnerNode::pointer SHAMap::getInner(const SHAMapNode& id, const uint256& h
 	if(node) return returnNode(node, modify);
 	
 	std::vector<unsigned char> rawNode;
-	if(!fetchInnerNode(hash, id, rawNode)) throw SHAMapException(MissingNode);
+	if(!fetchNode(hash, rawNode)) throw SHAMapException(MissingNode);
 	node=SHAMapInnerNode::pointer(new SHAMapInnerNode(id, rawNode, mSeq));
 	if(node->getNodeHash()!=hash) throw SHAMapException(InvalidNode);
 
@@ -473,25 +473,45 @@ void SHAMapItem::dump()
 	std::cerr << "SHAMapItem(" << mTag.GetHex() << ") " << mData.size() << "bytes" << std::endl;
 }
 
-// overloads for backed maps
-bool SHAMap::fetchInnerNode(const uint256&, const SHAMapNode&, std::vector<unsigned char>&)
+bool SHAMap::fetchNode(const uint256& hash, std::vector<unsigned char>& data)
 {
-	return false;
+	HashedObject::pointer obj(HashedObject::retrieve(hash));
+	if(!obj) return false;
+	data=obj->getData();
 }
 
-bool SHAMap::fetchLeafNode(const uint256&, const SHAMapNode&, std::vector<unsigned char>&)
+int SHAMap::flushDirty(int maxNodes, HashedObjectType t, uint32 seq)
 {
-	return false;
-}
+	int flushed=0;
+	Serializer s;
 
-bool SHAMap::writeInnerNode(const uint256&, const SHAMapNode&, const std::vector<unsigned char>&)
-{
-	return true;
-}
+	if(mDirtyLeafNodes)
+	{
+		while(!mDirtyLeafNodes->empty())
+		{
+			SHAMapLeafNode::pointer& dln=mDirtyLeafNodes->begin()->second;
+			s.erase();
+			dln->addRaw(s);
+			HashedObject::store(t, seq, s.peekData(), s.getSHA512Half());
+			mDirtyLeafNodes->erase(mDirtyLeafNodes->begin());
+			if(flushed++>=maxNodes) return flushed;
+		}
+	}	
 
-bool SHAMap::writeLeafNode(const uint256&, const SHAMapNode&, const std::vector<unsigned char>&)
-{
-	return true;
+	if(mDirtyInnerNodes)
+	{
+		while(!mDirtyInnerNodes->empty())
+		{
+			SHAMapInnerNode::pointer& din=mDirtyInnerNodes->begin()->second;
+			s.erase();
+			din->addRaw(s);
+			HashedObject::store(t, seq, s.peekData(), s.getSHA512Half());
+			mDirtyInnerNodes->erase(mDirtyInnerNodes->begin());
+			if(flushed++>=maxNodes) return flushed;
+		}
+	}
+
+	return flushed;
 }
 
 void SHAMap::dump()
diff --git a/SHAMap.h b/SHAMap.h
index 61e6588b4..59b0fd20a 100644
--- a/SHAMap.h
+++ b/SHAMap.h
@@ -12,6 +12,7 @@
 #include "uint256.h"
 #include "ScopedLock.h"
 #include "Serializer.h"
+#include "HashedObject.h"
 
 class SHAMap;
 
@@ -291,13 +292,10 @@ public:
 	// return value: true=successfully completed, false=too different
 	bool compare(SHAMap::pointer otherMap, SHAMapDiff& differences, int maxCount);
 
-	int flushDirty(int maxNodes);
+	int flushDirty(int maxNodes, HashedObjectType t, uint32 seq);
 
 	// overloads for backed maps
-	virtual bool fetchInnerNode(const uint256& hash, const SHAMapNode& id, std::vector<unsigned char>& rawNode);
-	virtual bool fetchLeafNode(const uint256& hash, const SHAMapNode& id, std::vector<unsigned char>& rawNode);
-	virtual bool writeInnerNode(const uint256& hash, const SHAMapNode& id, const std::vector<unsigned char>& rawNode);
-	virtual bool writeLeafNode(const uint256& hash, const SHAMapNode& id, const std::vector<unsigned char>& rawNode);
+	bool fetchNode(const uint256& hash, std::vector<unsigned char>& rawNode);
 
 	static bool TestSHAMap();
 	virtual void dump();