diff --git a/hash/sp1/bench/blake2/src/main.rs b/hash/sp1/bench/blake2/src/main.rs
index fa8ca27..d1c3a43 100644
--- a/hash/sp1/bench/blake2/src/main.rs
+++ b/hash/sp1/bench/blake2/src/main.rs
@@ -2,14 +2,14 @@
 #![no_main]
 sp1_zkvm::entrypoint!(main);
 
-//The patched sha2 rust crate https://github.com/sp1-patches/RustCrypto-hashes
+// blake2 of RustCrypto
 use blake2::Digest;
 use blake2::Blake2b;
 pub fn main() {
 
     let input = sp1_zkvm::io::read::<Vec<u8>>();
 
-// create a Blake2b512 object
+    // create a Blake2b object
     let mut hasher = Blake2b::new();
 
     // write input message
diff --git a/hash/sp1/bench/blake3/Cargo.toml b/hash/sp1/bench/blake3/Cargo.toml
new file mode 100644
index 0000000..6e51f20
--- /dev/null
+++ b/hash/sp1/bench/blake3/Cargo.toml
@@ -0,0 +1,9 @@
+[workspace]
+[package]
+version = "0.1.0"
+name = "blake3-program"
+edition = "2021"
+
+[dependencies]
+sp1-zkvm = { git = "https://github.com/succinctlabs/sp1.git" }
+blake3 = "1.5.0"
\ No newline at end of file
diff --git a/hash/sp1/bench/blake3/elf/riscv32im-succinct-zkvm-elf b/hash/sp1/bench/blake3/elf/riscv32im-succinct-zkvm-elf
new file mode 100755
index 0000000..c375586
Binary files /dev/null and b/hash/sp1/bench/blake3/elf/riscv32im-succinct-zkvm-elf differ
diff --git a/hash/sp1/bench/blake3/src/main.rs b/hash/sp1/bench/blake3/src/main.rs
new file mode 100644
index 0000000..e44992d
--- /dev/null
+++ b/hash/sp1/bench/blake3/src/main.rs
@@ -0,0 +1,22 @@
+
+#![no_main]
+sp1_zkvm::entrypoint!(main);
+
+// blake3 of https://github.com/BLAKE3-team/BLAKE3 (official implementation)
+use blake3::Hasher;
+pub fn main() {
+
+    let input = sp1_zkvm::io::read::<Vec<u8>>();
+
+    // create a Blake3 object
+    let mut hasher = Hasher::new();
+
+    // write input message
+    hasher.update(&input);
+
+    // read hash digest
+    let result: [u8;32] = hasher.finalize().into();
+
+    sp1_zkvm::io::write(&result);
+
+}
diff --git a/hash/sp1/bench/build.sh b/hash/sp1/bench/build.sh
index b5838cf..d05e9b0 100755
--- a/hash/sp1/bench/build.sh
+++ b/hash/sp1/bench/build.sh
@@ -5,5 +5,9 @@ cd ../keccak
 cargo prove build
 cd ../sha256
 cargo prove build
+cd ../blake3
+cargo prove build
+cd ../poseidon2
+cargo prove build
 cd ../script
 cargo build --release
diff --git a/hash/sp1/bench/keccak/src/main.rs b/hash/sp1/bench/keccak/src/main.rs
index da0a147..ba94ff2 100644
--- a/hash/sp1/bench/keccak/src/main.rs
+++ b/hash/sp1/bench/keccak/src/main.rs
@@ -1,6 +1,8 @@
 
 #![no_main]
 sp1_zkvm::entrypoint!(main);
+
+// patched keccak rust crate https://github.com/sp1-patches/tiny-keccak
 use tiny_keccak::{Hasher, Keccak};
 pub fn main() {
 
diff --git a/hash/sp1/bench/poseidon2/Cargo.toml b/hash/sp1/bench/poseidon2/Cargo.toml
new file mode 100644
index 0000000..9a7b28e
--- /dev/null
+++ b/hash/sp1/bench/poseidon2/Cargo.toml
@@ -0,0 +1,12 @@
+[workspace]
+[package]
+version = "0.1.0"
+name = "poseidon2-program"
+edition = "2021"
+
+[dependencies]
+sp1-zkvm = { git = "https://github.com/succinctlabs/sp1.git" }
+zkhash = {git = "https://github.com/HorizenLabs/poseidon2"}
+ark-serialize = "0.4"
+
+
diff --git a/hash/sp1/bench/poseidon2/elf/riscv32im-succinct-zkvm-elf b/hash/sp1/bench/poseidon2/elf/riscv32im-succinct-zkvm-elf
new file mode 100755
index 0000000..742a2c8
Binary files /dev/null and b/hash/sp1/bench/poseidon2/elf/riscv32im-succinct-zkvm-elf differ
diff --git a/hash/sp1/bench/poseidon2/src/main.rs b/hash/sp1/bench/poseidon2/src/main.rs
new file mode 100644
index 0000000..9e5b56e
--- /dev/null
+++ b/hash/sp1/bench/poseidon2/src/main.rs
@@ -0,0 +1,35 @@
+
+#![no_main]
+sp1_zkvm::entrypoint!(main);
+
+// poseidon2 https://github.com/HorizenLabs/poseidon2
+use zkhash::poseidon2::poseidon2::Poseidon2;
+use zkhash::poseidon2::poseidon2_instance_bn256::POSEIDON2_BN256_PARAMS;
+use zkhash::merkle_tree::merkle_tree_fp::MerkleTree;
+use zkhash::fields::bn256::FpBN256;
+use ark_serialize::{CanonicalSerialize, CanonicalDeserialize};
+
+pub fn main() {
+
+    let input = sp1_zkvm::io::read::<Vec<Vec<u8>>>();
+
+    //build input
+    let mut hash_data: Vec<FpBN256> = Vec::new();
+    for i in 0..input.len() {
+        let a_uncompressed = FpBN256::deserialize_uncompressed(&**input.get(i).unwrap()).unwrap();
+        hash_data.push(a_uncompressed);
+    }
+
+    // create a poseidon2 merkle object
+    let perm = Poseidon2::new(&POSEIDON2_BN256_PARAMS);
+    let mut mt = MerkleTree::new(perm.clone());
+    
+    let hash_final = mt.accumulate(&hash_data);
+
+
+    let mut hash_bytes: Vec<u8> = Vec::new();
+    hash_final.serialize_uncompressed(&mut hash_bytes).unwrap();
+
+    sp1_zkvm::io::write(&hash_bytes);
+
+}
diff --git a/hash/sp1/bench/run_tree.sh b/hash/sp1/bench/run_tree.sh
new file mode 100755
index 0000000..094983c
--- /dev/null
+++ b/hash/sp1/bench/run_tree.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+if [ -z ${ZKBENCH_HASH_TYPE_TREE} ]; then 
+ZKBENCH_HASH_TYPE_TREE="poseidon2"    
+fi
+
+if [ -z ${ZKBENCH_TREE_DEPTH} ]; then 
+ZKBENCH_TREE_DEPTH=4
+fi
+
+cd script
+echo "Running benchmarks with the following configurations:"
+echo "HASH            = $ZKBENCH_HASH_TYPE_TREE"
+echo "Tree Depth = $ZKBENCH_TREE_DEPTH"
+
+# Run the benchmarks
+./target/release/bench-script $ZKBENCH_HASH_TYPE_TREE $ZKBENCH_TREE_DEPTH
\ No newline at end of file
diff --git a/hash/sp1/bench/script/Cargo.toml b/hash/sp1/bench/script/Cargo.toml
index 0b5f047..aa82847 100644
--- a/hash/sp1/bench/script/Cargo.toml
+++ b/hash/sp1/bench/script/Cargo.toml
@@ -7,4 +7,6 @@ edition = "2021"
 [dependencies]
 sp1-core = { git = "https://github.com/succinctlabs/sp1.git" }
 rand = "0.8"
-hex = "0.4"
\ No newline at end of file
+hex = "0.4"
+zkhash = {git = "https://github.com/HorizenLabs/poseidon2"}
+ark-serialize = "0.4"
diff --git a/hash/sp1/bench/script/src/benches/blake2.rs b/hash/sp1/bench/script/src/benches/blake2.rs
index 622e24a..7b497f7 100644
--- a/hash/sp1/bench/script/src/benches/blake2.rs
+++ b/hash/sp1/bench/script/src/benches/blake2.rs
@@ -23,7 +23,7 @@ pub fn blake2_benchmark(size: usize) {
     let mut proof = SP1Prover::prove(BLAKE2_ELF, stdin).expect("proving failed");
     let t1 = t0.elapsed();
     // Read output.
-    let hash_bytes = proof.stdout.read::<[u8;64]>();
+    let hash_bytes = proof.stdout.read::<[u8;32]>();
     let hash = encode(hash_bytes);
     println!("hash: {}", hash);
 
diff --git a/hash/sp1/bench/script/src/benches/blake3.rs b/hash/sp1/bench/script/src/benches/blake3.rs
new file mode 100644
index 0000000..5c45776
--- /dev/null
+++ b/hash/sp1/bench/script/src/benches/blake3.rs
@@ -0,0 +1,43 @@
+
+use sp1_core::{SP1Prover, SP1Stdin, SP1Verifier};
+use rand::Rng;
+use hex::encode;
+
+const BLAKE3_ELF: &[u8] = include_bytes!("../../../blake3/elf/riscv32im-succinct-zkvm-elf");
+
+pub fn generate_random_bytes(length: usize) -> Vec<u8> {
+    let mut rng = rand::thread_rng();
+    (0..length).map(|_| rng.gen::<u8>()).collect()
+}
+
+
+pub fn blake3_benchmark(size: usize) {
+
+    // Generate proof.
+    let mut stdin = SP1Stdin::new();
+    let data = generate_random_bytes(size);
+
+    stdin.write(&data);
+
+    let t0 = std::time::Instant::now();
+    let mut proof = SP1Prover::prove(BLAKE3_ELF, stdin).expect("proving failed");
+    let t1 = t0.elapsed();
+    // Read output.
+    let hash_bytes = proof.stdout.read::<[u8;32]>();
+    let hash = encode(hash_bytes);
+    println!("hash: {}", hash);
+
+    // Verify proof.
+    let t2 = std::time::Instant::now();
+    SP1Verifier::verify(BLAKE3_ELF, &proof).expect("verification failed");
+    let t3 = t2.elapsed();
+
+    // Save proof.
+    proof
+        .save("proof-with-io.json")
+        .expect("saving proof failed");
+
+    println!("succesfully generated and verified proof for the program!");
+    println!("Proof Generation Time: {:?}", t1);
+    println!("Proof verification Time: {:?}", t3);
+}
diff --git a/hash/sp1/bench/script/src/benches/poseidon2.rs b/hash/sp1/bench/script/src/benches/poseidon2.rs
new file mode 100644
index 0000000..7a831d1
--- /dev/null
+++ b/hash/sp1/bench/script/src/benches/poseidon2.rs
@@ -0,0 +1,50 @@
+
+use sp1_core::{SP1Prover, SP1Stdin, SP1Verifier};
+use zkhash::fields::{bn256::FpBN256, utils::random_scalar};
+use ark_serialize::{CanonicalSerialize, CanonicalDeserialize};
+
+const POSEIDON2_ELF: &[u8] = include_bytes!("../../../poseidon2/elf/riscv32im-succinct-zkvm-elf");
+
+pub fn poseidon2_benchmark(mt_depth: usize) {
+
+    // Generate proof.
+    let mut stdin = SP1Stdin::new();
+
+    type Scalar = FpBN256;
+
+    // generating data and serialize
+    let mut input_scalar: Vec<Vec<u8>> = Vec::new();
+    let number_of_leaves: u32 = 1 << mt_depth;
+    for _ in 0..number_of_leaves {
+        let mut uncompressed_bytes = Vec::new();
+        let a: Scalar = random_scalar();
+        a.serialize_uncompressed(&mut uncompressed_bytes).unwrap();
+        input_scalar.push(uncompressed_bytes);
+    }
+
+    stdin.write(&input_scalar);
+
+    let t0 = std::time::Instant::now();
+    let mut proof = SP1Prover::prove(POSEIDON2_ELF, stdin).expect("proving failed");
+    let t1 = t0.elapsed();
+    
+    // Read output.
+    let hash_bytes = proof.stdout.read::<Vec<u8>>();
+    let hash_final = Scalar::deserialize_uncompressed(&*hash_bytes).unwrap();
+
+    println!("hash: {}", hash_final);
+
+    // Verify proof.
+    let t2 = std::time::Instant::now();
+    SP1Verifier::verify(POSEIDON2_ELF, &proof).expect("verification failed");
+    let t3 = t2.elapsed();
+
+    // Save proof.
+    proof
+        .save("proof-with-io.json")
+        .expect("saving proof failed");
+
+    println!("succesfully generated and verified proof for the program!");
+    println!("Proof Generation Time: {:?}", t1);
+    println!("Proof verification Time: {:?}", t3);
+}
diff --git a/hash/sp1/bench/script/src/benches/sha256.rs b/hash/sp1/bench/script/src/benches/sha256.rs
index eff61f3..39e53f0 100644
--- a/hash/sp1/bench/script/src/benches/sha256.rs
+++ b/hash/sp1/bench/script/src/benches/sha256.rs
@@ -10,7 +10,6 @@ pub fn generate_random_bytes(length: usize) -> Vec<u8> {
     (0..length).map(|_| rng.gen::<u8>()).collect()
 }
 
-
 pub fn sha256_benchmark(size: usize) {
 
     // Generate proof.
diff --git a/hash/sp1/bench/script/src/main.rs b/hash/sp1/bench/script/src/main.rs
index 146de3f..b75a413 100644
--- a/hash/sp1/bench/script/src/main.rs
+++ b/hash/sp1/bench/script/src/main.rs
@@ -1,9 +1,19 @@
 pub mod benches{
     pub mod keccak;
     pub mod sha256;
+    pub mod blake2;
+    pub mod blake3;
+    pub mod poseidon2;
 }
-use crate::benches::keccak::keccak_benchmark;
-use crate::benches::sha256::sha256_benchmark;
+
+use crate::benches::{
+    keccak::keccak_benchmark,
+    sha256::sha256_benchmark,
+    blake2::blake2_benchmark,
+    blake3::blake3_benchmark,
+    poseidon2::poseidon2_benchmark
+};
+
 use std::process;
 
 fn main() {
@@ -32,7 +42,17 @@ fn main() {
 
         "blake2" => {
             println!("Running blake2 benchmark: ");
-            let _ = keccak_benchmark(size);
+            let _ = blake2_benchmark(size);
+        }
+
+        "blake3" => {
+            println!("Running blake3 benchmark: ");
+            let _ = blake3_benchmark(size);
+        }
+
+        "poseidon2" => {
+            println!("Running poseidon2 benchmark: ");
+            let _ = poseidon2_benchmark(size);
         }
 
         _ => {