diff --git a/src/storage_proofs.rs b/src/storage_proofs.rs
index 17a6a0d..ba11221 100644
--- a/src/storage_proofs.rs
+++ b/src/storage_proofs.rs
@@ -50,7 +50,7 @@ impl StorageProofs {
         }
     }
 
-    pub fn prove(
+    pub fn prove_mpack(
         &mut self,
         inputs: &[u8],
         proof_bytes: &mut Vec<u8>,
@@ -90,6 +90,46 @@ impl StorageProofs {
         Ok(())
     }
 
+    pub fn prove(
+        &mut self,
+        chunks: &[U256],
+        siblings: &[U256],
+        hashes: &[U256],
+        path: &[i32],
+        root: U256,
+        salt: U256,
+        proof_bytes: &mut Vec<u8>,
+        public_inputs_bytes: &mut Vec<u8>,
+    ) -> Result<(), String> {
+        let mut builder = self.builder.clone();
+
+        // vec of vecs is flattened, since wasm expects a contiguous array in memory
+        chunks.iter().for_each(|c| builder.push_input("chunks", *c));
+
+        siblings
+            .iter()
+            .for_each(|c| builder.push_input("siblings", *c));
+
+        hashes.iter().for_each(|c| builder.push_input("hashes", *c));
+        path.iter().for_each(|c| builder.push_input("path", *c));
+
+        builder.push_input("root", root);
+        builder.push_input("salt", salt);
+
+        let circuit = builder.build().map_err(|e| e.to_string())?;
+        let inputs = circuit
+            .get_public_inputs()
+            .ok_or("Unable to get public inputs!")?;
+        let proof = prove(circuit, &self.params, &mut self.rng).map_err(|e| e.to_string())?;
+
+        proof.serialize(proof_bytes).map_err(|e| e.to_string())?;
+        inputs
+            .serialize(public_inputs_bytes)
+            .map_err(|e| e.to_string())?;
+
+        Ok(())
+    }
+
     pub fn verify<RR: Read>(
         &mut self,
         proof_bytes: RR,
@@ -122,7 +162,8 @@ fn decode_u256(val: &rmpv::Value) -> Result<U256, String> {
     }
 }
 
-fn parse_mpack_args(builder: &mut CircomBuilder<Params256Ty>, mut inputs: &[u8]) -> Result<(), String> {
+fn parse_mpack_args(builder: &mut CircomBuilder<Params256Ty>,
+                    mut inputs: &[u8]) -> Result<(), String> {
     let values: rmpv::Value = read_value(&mut inputs).map_err(|e| e.to_string())?;
     let args: &Vec<(rmpv::Value, rmpv::Value)> = match values.as_map() {
         Some(args) => args,
@@ -166,13 +207,6 @@ fn parse_mpack_args(builder: &mut CircomBuilder<Params256Ty>, mut inputs: &[u8])
                     println!("done: name: {}", name);
                 }
             },
-            // directly add a (name,string) arg pair 
-            // ie, "path" => "/some/file/path"
-            rmpv::Value::String(s) => {
-                println!("deserde: string");
-                let s = s.clone().into_bytes();
-                s.iter().for_each(|c| builder.push_input(name, (*c) as i32));
-            }
             // directly add a (name,u256) arg pair 
             rmpv::Value::Ext(_, _) => {
                 let n = decode_u256(val)?;