diff --git a/src/pcd.rs b/src/pcd.rs
index 54f3a50..33a6415 100644
--- a/src/pcd.rs
+++ b/src/pcd.rs
@@ -94,7 +94,7 @@ impl AnkPcdHash {
 }
 
 pub trait Pcd<'a>: Serialize + Deserialize<'a> {
-    fn from_string(str: &str) -> Result<Value> {
+    fn new_from_string(str: &str) -> Result<Value> {
         let value: Value = serde_json::from_str(str)?;
 
         match value {
@@ -103,10 +103,10 @@ pub trait Pcd<'a>: Serialize + Deserialize<'a> {
         }
     }
 
-    fn hash_fields(&self, root_commitment: OutPoint) -> Result<Map<String, Value>> {
+    fn hash_all_fields(&self, commited_in: OutPoint) -> Result<Map<String, Value>> {
         let map = self.to_value_object()?;
 
-        let outpoint = serialize(&root_commitment);
+        let outpoint = serialize(&commited_in);
 
         let mut field2hash = Map::with_capacity(map.len());
         // this could be optimised since there's a midstate we're reusing
@@ -118,7 +118,7 @@ pub trait Pcd<'a>: Serialize + Deserialize<'a> {
         Ok(field2hash)
     }
 
-    /// We run this on the result of `hash_fields`
+    /// We run this on the result of `hash_all_fields`
     fn create_merkle_tree(&self) -> Result<MerkleTree<Sha256>> {
         let map = self.to_value_object()?;
         let leaves: Result<Vec<[u8; 32]>> = map
@@ -186,8 +186,9 @@ pub trait Pcd<'a>: Serialize + Deserialize<'a> {
         Ok(())
     }
 
-    fn decrypt_fields(
+    fn decrypt_all(
         &self,
+        commited_in: OutPoint,
         fields2commit: &Map<String, Value>,
         fields2keys: &Map<String, Value>,
         fields2plain: &mut Map<String, Value>,