diff --git a/src/process.rs b/src/process.rs
index 6b57434..a731aad 100644
--- a/src/process.rs
+++ b/src/process.rs
@@ -20,7 +20,7 @@ pub struct ProcessState {
     pub commited_in: OutPoint,
     #[tsify(type = "Record<string, string>")]
     pub pcd_commitment: Value, // If we can't modify a field, we just copy the previous value
-    pub merkle_root: String, // the root of the tree created with all the commitments. Serves as an unique id for a state too
+    pub state_id: String, // the root of the tree created with all the commitments. Serves as an unique id for a state too
     #[tsify(type = "Record<string, string>")]
     pub encrypted_pcd: Value, // Some fields may be clear, if the owner of the process decides so
     #[tsify(type = "Record<string, string>")]
@@ -54,7 +54,7 @@ impl ProcessState {
         let res = Self {
             commited_in,
             pcd_commitment,
-            merkle_root,
+            state_id: merkle_root,
             encrypted_pcd: Value::Object(encrypted),
             keys,
             validation_tokens: vec![],
@@ -193,7 +193,7 @@ impl ProcessState {
             }
 
             let mut merkle_root = [0u8; 32];
-            merkle_root.copy_from_slice(&Vec::from_hex(&self.merkle_root).unwrap());
+            merkle_root.copy_from_slice(&Vec::from_hex(&self.state_id).unwrap());
 
             applicable_roles.into_iter().any(|role_def| {
                 role_def.validation_rules.iter().any(|rule| {
@@ -354,14 +354,14 @@ impl Process {
         }
     }
 
-    pub fn get_state_for_commitments_root(&self, merkle_root: &str) -> anyhow::Result<&ProcessState> {
+    pub fn get_state_for_id(&self, state_id: &str) -> anyhow::Result<&ProcessState> {
         if self.get_number_of_states() == 0 {
             // This should never happen, but we better get rid of it now
             return Err(anyhow::Error::msg("process is empty".to_owned()));
         }
 
         for p in self.get_latest_concurrent_states()? {
-            if merkle_root == p.merkle_root.as_str() { 
+            if state_id == p.state_id.as_str() { 
                 return Ok(p);
             }
         }
@@ -369,14 +369,14 @@ impl Process {
         return Err(anyhow::Error::msg("No state for this merkle root"));
     }
 
-    pub fn get_state_for_commitments_root_mut(&mut self, merkle_root: &str) -> anyhow::Result<&mut ProcessState> {
+    pub fn get_state_for_id_mut(&mut self, state_id: &str) -> anyhow::Result<&mut ProcessState> {
         if self.get_number_of_states() == 0 {
             // This should never happen, but we better get rid of it now
             return Err(anyhow::Error::msg("process is empty".to_owned()));
         }
 
         for p in self.get_latest_concurrent_states_mut()? {
-            if merkle_root == p.merkle_root.as_str() { 
+            if state_id == p.state_id.as_str() { 
                 return Ok(p);
             }
         }