diff --git a/src/SerializedLedger.h b/src/SerializedLedger.h
index 9e5ccc2475..0388e3c49d 100644
--- a/src/SerializedLedger.h
+++ b/src/SerializedLedger.h
@@ -53,6 +53,7 @@ public:
 	uint16 getIFieldU16(SOE_Field field) const { return mObject.getValueFieldU16(field); }
 	uint32 getIFieldU32(SOE_Field field) const { return mObject.getValueFieldU32(field); }
 	uint64 getIFieldU64(SOE_Field field) const { return mObject.getValueFieldU64(field); }
+	uint128 getIFieldH128(SOE_Field field) const { return mObject.getValueFieldH128(field); }
 	uint160 getIFieldH160(SOE_Field field) const { return mObject.getValueFieldH160(field); }
 	uint256 getIFieldH256(SOE_Field field) const { return mObject.getValueFieldH256(field); }
 	std::vector<unsigned char> getIFieldVL(SOE_Field field) const { return mObject.getValueFieldVL(field); }
@@ -65,6 +66,7 @@ public:
 	void setIFieldU16(SOE_Field field, uint16 v) { return mObject.setValueFieldU16(field, v); }
 	void setIFieldU32(SOE_Field field, uint32 v) { return mObject.setValueFieldU32(field, v); }
 	void setIFieldU64(SOE_Field field, uint32 v) { return mObject.setValueFieldU64(field, v); }
+	void setIFieldH128(SOE_Field field, const uint128& v) { return mObject.setValueFieldH128(field, v); }
 	void setIFieldH160(SOE_Field field, const uint160& v) { return mObject.setValueFieldH160(field, v); }
 	void setIFieldH256(SOE_Field field, const uint256& v) { return mObject.setValueFieldH256(field, v); }
 	void setIFieldVL(SOE_Field field, const std::vector<unsigned char>& v)
diff --git a/src/SerializedObject.cpp b/src/SerializedObject.cpp
index e9c0564c5f..123781cbef 100644
--- a/src/SerializedObject.cpp
+++ b/src/SerializedObject.cpp
@@ -401,6 +401,17 @@ uint64 STObject::getValueFieldU64(SOE_Field field) const
 	return cf->getValue();
 }
 
+uint128 STObject::getValueFieldH128(SOE_Field field) const
+{
+	const SerializedType* rf = peekAtPField(field);
+	if (!rf) throw std::runtime_error("Field not found");
+	SerializedTypeID id = rf->getSType();
+	if (id == STI_NOTPRESENT) return uint128(); // optional field not present
+	const STHash128 *cf = dynamic_cast<const STHash128 *>(rf);
+	if (!cf) throw std::runtime_error("Wrong field type");
+	return cf->getValue();
+}
+
 uint160 STObject::getValueFieldH160(SOE_Field field) const
 {
 	const SerializedType* rf = peekAtPField(field);
@@ -525,6 +536,16 @@ void STObject::setValueFieldU64(SOE_Field field, uint64 v)
 	cf->setValue(v);
 }
 
+void STObject::setValueFieldH128(SOE_Field field, const uint128& v)
+{
+	SerializedType* rf = getPField(field);
+	if (!rf) throw std::runtime_error("Field not found");
+	if (rf->getSType() == STI_NOTPRESENT) rf = makeFieldPresent(field);
+	STHash128* cf = dynamic_cast<STHash128*>(rf);
+	if (!cf) throw std::runtime_error("Wrong field type");
+	cf->setValue(v);
+}
+
 void STObject::setValueFieldH160(SOE_Field field, const uint160& v)
 {
 	SerializedType* rf = getPField(field);
diff --git a/src/SerializedObject.h b/src/SerializedObject.h
index 5eb7245f4a..3c322486da 100644
--- a/src/SerializedObject.h
+++ b/src/SerializedObject.h
@@ -159,6 +159,7 @@ public:
 	uint16 getValueFieldU16(SOE_Field field) const;
 	uint32 getValueFieldU32(SOE_Field field) const;
 	uint64 getValueFieldU64(SOE_Field field) const;
+	uint128 getValueFieldH128(SOE_Field field) const;
 	uint160 getValueFieldH160(SOE_Field field) const;
 	uint256 getValueFieldH256(SOE_Field field) const;
 	NewcoinAddress getValueFieldAccount(SOE_Field field) const;
@@ -171,6 +172,7 @@ public:
 	void setValueFieldU16(SOE_Field field, uint16);
 	void setValueFieldU32(SOE_Field field, uint32);
 	void setValueFieldU64(SOE_Field field, uint64);
+	void setValueFieldH128(SOE_Field field, const uint128&);
 	void setValueFieldH160(SOE_Field field, const uint160&);
 	void setValueFieldH256(SOE_Field field, const uint256&);
 	void setValueFieldVL(SOE_Field field, const std::vector<unsigned char>&);
diff --git a/src/SerializedTransaction.h b/src/SerializedTransaction.h
index 13dede1d25..024bbfa548 100644
--- a/src/SerializedTransaction.h
+++ b/src/SerializedTransaction.h
@@ -75,16 +75,19 @@ public:
 	uint16 getITFieldU16(SOE_Field field) const { return mInnerTxn.getValueFieldU16(field); }
 	uint32 getITFieldU32(SOE_Field field) const { return mInnerTxn.getValueFieldU32(field); }
 	uint64 getITFieldU64(SOE_Field field) const { return mInnerTxn.getValueFieldU64(field); }
+	uint128 getITFieldH128(SOE_Field field) const { return mInnerTxn.getValueFieldH128(field); }
 	uint160 getITFieldH160(SOE_Field field) const { return mInnerTxn.getValueFieldH160(field); }
 	uint160 getITFieldAccount(SOE_Field field) const;
 	uint256 getITFieldH256(SOE_Field field) const { return mInnerTxn.getValueFieldH256(field); }
 	std::vector<unsigned char> getITFieldVL(SOE_Field field) const { return mInnerTxn.getValueFieldVL(field); }
 	std::vector<TaggedListItem> getITFieldTL(SOE_Field field) const { return mInnerTxn.getValueFieldTL(field); }
 	STAmount getITFieldAmount(SOE_Field field) const { return mInnerTxn.getValueFieldAmount(field); }
+
 	void setITFieldU8(SOE_Field field, unsigned char v) { return mInnerTxn.setValueFieldU8(field, v); }
 	void setITFieldU16(SOE_Field field, uint16 v) { return mInnerTxn.setValueFieldU16(field, v); }
 	void setITFieldU32(SOE_Field field, uint32 v) { return mInnerTxn.setValueFieldU32(field, v); }
 	void setITFieldU64(SOE_Field field, uint32 v) { return mInnerTxn.setValueFieldU64(field, v); }
+	void setITFieldH128(SOE_Field field, const uint128& v) { return mInnerTxn.setValueFieldH128(field, v); }
 	void setITFieldH160(SOE_Field field, const uint160& v) { return mInnerTxn.setValueFieldH160(field, v); }
 	void setITFieldH256(SOE_Field field, const uint256& v) { return mInnerTxn.setValueFieldH256(field, v); }
 	void setITFieldVL(SOE_Field field, const std::vector<unsigned char>& v)