diff --git a/src/lib.rs b/src/lib.rs
index 9e0fb78..237b1b2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -14,6 +14,7 @@ pub mod pcd;
 pub mod prd;
 pub mod process;
 pub mod secrets;
+pub mod serialization;
 pub mod signature;
 pub mod silentpayments;
 
diff --git a/src/serialization.rs b/src/serialization.rs
new file mode 100644
index 0000000..2eb0688
--- /dev/null
+++ b/src/serialization.rs
@@ -0,0 +1,103 @@
+use serde::{Deserialize, Serialize};
+use sp_client::bitcoin::OutPoint;
+use std::collections::HashMap;
+use crate::{pcd::Member, process::Process};
+
+#[derive(Serialize, Deserialize)]
+pub struct MemberOutPointMap(#[serde(with = "members_map")] pub HashMap<Member, OutPoint>);
+
+#[derive(Serialize, Deserialize)]
+pub struct OutPointProcessMap(#[serde(with = "outpoint_map")] pub HashMap<OutPoint, Process>);
+
+pub mod members_map {
+    use crate::pcd::Member;
+    use serde::{Serialize, Serializer, Deserialize, Deserializer};
+    use std::collections::HashMap;
+    use sp_client::bitcoin::OutPoint;
+
+    pub fn serialize<S>(
+        map: &HashMap<Member, OutPoint>,
+        serializer: S,
+    ) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let map: HashMap<String, OutPoint> = map
+            .iter()
+            .map(|(k, v)| (k.to_string(), *v))
+            .collect();
+        map.serialize(serializer)
+    }
+
+    pub fn deserialize<'de, D>(
+        deserializer: D,
+    ) -> Result<HashMap<Member, OutPoint>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let map: HashMap<String, OutPoint> = HashMap::deserialize(deserializer)?;
+
+        let result: Result<HashMap<Member, OutPoint>, D::Error> = map
+            .into_iter()
+            .map(|(k, v)| {
+                let member = k
+                    .split(',')
+                    .map(|s| s.try_into())
+                    .collect::<Result<Vec<_>, _>>()
+                    .map_err(serde::de::Error::custom)?; 
+                let member = Member::new(member).map_err(serde::de::Error::custom)?;
+                Ok((member, v))
+            })
+            .collect(); 
+
+        result
+    }
+}
+
+pub mod outpoint_map {
+    use serde::{Serialize, Serializer, Deserialize, Deserializer};
+    use std::collections::HashMap;
+    use sp_client::bitcoin::OutPoint;
+    use crate::process::Process;
+
+    pub fn serialize<S>(
+        map: &HashMap<OutPoint, Process>,
+        serializer: S,
+    ) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        // Convert OutPoint keys to Strings
+        let map: HashMap<String, Process> = map
+            .into_iter()
+            .map(|(k, v)| (k.to_string(), v.clone()))
+            .collect();
+
+        // Serialize as HashMap<String, Process>
+        map.serialize(serializer)
+    }
+
+    pub fn deserialize<'de, D>(
+        deserializer: D,
+    ) -> Result<HashMap<OutPoint, Process>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        // Deserialize as HashMap<String, Process>
+        let map: HashMap<String, Process> = HashMap::deserialize(deserializer)?;
+
+        // Convert String keys back to OutPoint
+        let result: Result<HashMap<OutPoint, Process>, D::Error> = map
+            .into_iter()
+            .map(|(k, v)| {
+                let outpoint = k
+                    .parse() 
+                    .map_err(serde::de::Error::custom)?;
+                Ok((outpoint, v))
+            })
+            .collect();
+
+        result
+    }
+}
+