diff --git a/eos/base/election.py b/eos/base/election.py
index f038678..57edd1d 100644
--- a/eos/base/election.py
+++ b/eos/base/election.py
@@ -60,6 +60,6 @@ class Election(TopLevelObject):
 	_id = UUIDField()
 	workflow = EmbeddedObjectField(Workflow) # Once saved, we don't care what kind of workflow it is
 	name = StringField()
-	voters = EmbeddedObjectListField(hashed=False)
+	voters = EmbeddedObjectListField(is_hashed=False)
 	questions = EmbeddedObjectListField()
-	results = EmbeddedObjectListField(hashed=False)
+	results = EmbeddedObjectListField(is_hashed=False)
diff --git a/eos/core/bigint/js.py b/eos/core/bigint/js.py
index 7da5edb..e8a90d9 100644
--- a/eos/core/bigint/js.py
+++ b/eos/core/bigint/js.py
@@ -120,7 +120,7 @@ class BigInt(EosObject):
 	def nbits(self):
 		return self.impl.bitLength()
 	
-	def serialise(self, hashed=False):
+	def serialise(self, for_hash=False, should_protect=False):
 		return str(self)
 	
 	@classmethod
diff --git a/eos/core/bigint/python.py b/eos/core/bigint/python.py
index 8bdd43b..0238cf6 100644
--- a/eos/core/bigint/python.py
+++ b/eos/core/bigint/python.py
@@ -46,7 +46,7 @@ class BigInt(EosObject):
 	def nbits(self):
 		return math.ceil(math.log2(self.impl)) if self.impl > 0 else 0
 	
-	def serialise(self, hashed=False):
+	def serialise(self, for_hash=False, should_protect=False):
 		return str(self)
 	
 	@classmethod
diff --git a/eos/core/objects/__init__.py b/eos/core/objects/__init__.py
index 1dad605..0d57434 100644
--- a/eos/core/objects/__init__.py
+++ b/eos/core/objects/__init__.py
@@ -57,8 +57,9 @@ if is_python:
 
 class Field:
 	def __init__(self, *args, **kwargs):
-		self.default = kwargs.get('default', kwargs.get('py_default', None))
-		self.hashed = kwargs.get('hashed', True)
+		self.default = kwargs['default'] if 'default' in kwargs else kwargs['py_default'] if 'py_default' in kwargs else None
+		self.is_protected = kwargs['is_protected'] if 'is_protected' in kwargs else False
+		self.is_hashed = kwargs['is_hashed'] if 'is_hashed' in kwargs else not self.is_protected
 
 class PrimitiveField(Field):
 	def serialise(self, value):
@@ -152,12 +153,12 @@ class EosObject(metaclass=EosObjectType):
 		return None
 	
 	@staticmethod
-	def serialise_and_wrap(value, object_type=None, hashed=False):
+	def serialise_and_wrap(value, object_type=None, for_hash=False, should_protect=False):
 		if object_type:
 			if value:
-				return value.serialise(hashed)
+				return value.serialise(for_hash, should_protect)
 			return None
-		return {'type': value._name, 'value': (value.serialise(hashed) if value else None)}
+		return {'type': value._name, 'value': (value.serialise(for_hash, should_protect) if value else None)}
 	
 	@staticmethod
 	def deserialise_and_unwrap(value, object_type=None):
@@ -296,12 +297,17 @@ class DocumentObject(EosObject, metaclass=DocumentObjectType):
 				setattr(self, attr, default)
 	
 	# TNYI: Strange things happen with py_ attributes
-	def serialise(self, hashed=False):
-		return {(attr[3:] if attr.startswith('py_') else attr): val.serialise(getattr(self, attr)) for attr, val in self._fields.items() if (val.hashed or not hashed)}
+	def serialise(self, for_hash=False, should_protect=False):
+		return {(attr[3:] if attr.startswith('py_') else attr): val.serialise(getattr(self, attr)) for attr, val in self._fields.items() if ((val.is_hashed or not for_hash) and (not should_protect or not val.is_protected))}
 	
 	@classmethod
 	def deserialise(cls, value):
-		return cls(**{attr: val.deserialise(value[attr[3:] if attr.startswith('py_') else attr]) for attr, val in cls._fields.items()})
+		attrs = {}
+		for attr, val in cls._fields.items():
+			json_attr = attr[3:] if attr.startswith('py_') else attr
+			if json_attr in value:
+				attrs[attr] = val.deserialise(value[json_attr])
+		return cls(**attrs)
 
 class TopLevelObject(DocumentObject):
 	def save(self):
diff --git a/eos/psr/election.py b/eos/psr/election.py
index 1b4fdb1..3eb6f39 100644
--- a/eos/psr/election.py
+++ b/eos/psr/election.py
@@ -154,7 +154,7 @@ class MixingTrustee(Trustee):
 class PSRElection(Election):
 	_db_name = Election._name
 	
-	sk = EmbeddedObjectField(SEGPrivateKey) # TODO: Threshold
+	sk = EmbeddedObjectField(SEGPrivateKey, is_protected=True) # TODO: Threshold
 	
 	public_key = EmbeddedObjectField(SEGPublicKey)
 	mixing_trustees = EmbeddedObjectListField(MixingTrustee)