add

proposer/succinct/bin/server.rs

@@ -161,7 +161,7 @@ async fn request_span_proof(
 
     // Check if error, otherwise get proof ID.
     let proof_id = match res {
-        Ok(proof_id) => String::from_utf8(proof_id).unwrap(),
+        Ok(proof_id) => proof_id,
         Err(e) => {
             log::error!("Failed to request proof: {}", e);
             return Err(AppError(anyhow::anyhow!("Failed to request proof: {}", e)));
@@ -360,7 +360,7 @@ async fn get_proof_status(
 
     let client = NetworkClient::new(&private_key);
 
-    let proof_id_bytes = string_to_bytes(&proof_id);
+    let proof_id_bytes = hex::decode(proof_id)?;
 
     // Time out this request if it takes too long.
     let timeout = Duration::from_secs(10);

proposer/succinct/src/lib.rs

@@ -36,7 +36,7 @@ pub struct MockProofResponse {
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct ProofResponse {
-    pub proof_id: String,
+    pub proof_id: Vec<u8>,
 }
 
 #[derive(Debug, Serialize_repr, Deserialize_repr)]