diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index 0063d887..b1be4b92 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -69,12 +69,6 @@ jobs:
           - zkvm: zisk
             test: prove_empty_block # ere image intentionally doesn't bake big proving key for CI
           # Ethrex
-          - el: ethrex
-            test: execute_mainnet_blocks # Still quite heavy to run in CI
-          - el: ethrex
-            test: execute_invalid_blocks # Still quite heavy to run in CI
-          - el: ethrex
-            zkvm: risc0 # See https://github.com/eth-act/ere/issues/121
           - el: ethrex
             zkvm: openvm # See https://github.com/eth-act/ere/issues/168
           - el: ethrex
diff --git a/Cargo.lock b/Cargo.lock
index a433bf3a..6850cd46 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1316,6 +1316,7 @@ name = "benchmark-runner"
 version = "0.1.0"
 dependencies = [
  "alloy-eips",
+ "alloy-genesis",
  "alloy-rlp",
  "anyhow",
  "bincode",
@@ -2789,7 +2790,7 @@ dependencies = [
 [[package]]
 name = "ethrex-blockchain"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "bytes",
  "cfg-if",
@@ -2809,7 +2810,7 @@ dependencies = [
 [[package]]
 name = "ethrex-common"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "bytes",
  "crc32fast",
@@ -2837,12 +2838,12 @@ dependencies = [
 [[package]]
 name = "ethrex-crypto"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 
 [[package]]
 name = "ethrex-l2-common"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "bytes",
  "ethereum-types",
@@ -2862,7 +2863,7 @@ dependencies = [
 [[package]]
 name = "ethrex-levm"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "ark-bn254",
  "ark-ec",
@@ -2894,7 +2895,7 @@ dependencies = [
 [[package]]
 name = "ethrex-metrics"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "ethrex-common",
  "serde",
@@ -2906,7 +2907,7 @@ dependencies = [
 [[package]]
 name = "ethrex-rlp"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "bytes",
  "ethereum-types",
@@ -2920,7 +2921,7 @@ dependencies = [
 [[package]]
 name = "ethrex-storage"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -2941,7 +2942,7 @@ dependencies = [
 [[package]]
 name = "ethrex-trie"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "anyhow",
  "bytes",
@@ -2961,7 +2962,7 @@ dependencies = [
 [[package]]
 name = "ethrex-vm"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "bincode",
  "bytes",
@@ -2975,6 +2976,7 @@ dependencies = [
  "ethrex-trie",
  "hex",
  "lazy_static",
+ "rkyv",
  "serde",
  "sha3",
  "thiserror 2.0.16",
@@ -3449,7 +3451,7 @@ dependencies = [
 [[package]]
 name = "guest_program"
 version = "0.1.0"
-source = "git+https://github.com/lambdaclass/ethrex.git?rev=5b4c943007b96152453e5a8f8a1a592608b11ea0#5b4c943007b96152453e5a8f8a1a592608b11ea0"
+source = "git+https://github.com/lambdaclass/ethrex.git?rev=cfb805c6c70df1f6172f1982c9ed8952b7399d28#cfb805c6c70df1f6172f1982c9ed8952b7399d28"
 dependencies = [
  "bytes",
  "ethrex-blockchain",
diff --git a/Cargo.toml b/Cargo.toml
index 1b48577d..7b9f9e6d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -121,9 +121,9 @@ reth-errors = { git = "https://github.com/kevaundray/reth", rev = "6de1d8358ca27
 reth-trie-common = { git = "https://github.com/kevaundray/reth", rev = "6de1d8358ca2790d47852317c457a9a426a2e09f" }
 reth-chainspec = { git = "https://github.com/kevaundray/reth", rev = "6de1d8358ca2790d47852317c457a9a426a2e09f" }
 
-ethrex-guest-program = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", package = "guest_program" }
-ethrex-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-rlp = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
+ethrex-guest-program = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", package = "guest_program" }
+ethrex-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-rlp = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
 
 
 # alloy
diff --git a/crates/benchmark-runner/Cargo.toml b/crates/benchmark-runner/Cargo.toml
index 8a7092b7..14eab197 100644
--- a/crates/benchmark-runner/Cargo.toml
+++ b/crates/benchmark-runner/Cargo.toml
@@ -13,6 +13,7 @@ ere-dockerized.workspace = true
 
 alloy-rlp.workspace = true
 alloy-eips.workspace = true
+alloy-genesis.workspace = true
 
 reth-stateless.workspace = true
 
diff --git a/crates/benchmark-runner/src/stateless_validator.rs b/crates/benchmark-runner/src/stateless_validator.rs
index 9404ba4e..b47fb44c 100644
--- a/crates/benchmark-runner/src/stateless_validator.rs
+++ b/crates/benchmark-runner/src/stateless_validator.rs
@@ -164,7 +164,7 @@ fn write_stdin(si: &StatelessInput, el: &ExecutionClient) -> Result<Input> {
 
             let ethrex_program_input = ProgramInput {
                 blocks: vec![ethrex_block],
-                db: from_reth_witness_to_ethrex_witness(si.block.number, si)?,
+                execution_witness: from_reth_witness_to_ethrex_witness(si.block.number, si)?,
                 elasticity_multiplier: 2u64, // NOTE: Ethrex doesn't derive this value from chain config.
             };
 
@@ -212,30 +212,17 @@ fn from_reth_witness_to_ethrex_witness(
             .map(|ttd| TryInto::<u128>::try_into(ttd).unwrap()),
         terminal_total_difficulty_passed: si.chain_config.terminal_total_difficulty_passed,
         blob_schedule: BlobSchedule {
-            cancun: si
-                .chain_config
-                .blob_schedule
-                .get("Cancun")
-                .map(|s| ForkBlobSchedule {
-                    // Reth and Ethrex have some mismatched data type representations. Reth uses bigger ints.
-                    // Downcasting should never cause an overflow, but let's be safe and panic if this ever happens.
-                    base_fee_update_fraction: s.update_fraction.try_into().unwrap(),
-                    target: s.target_blob_count.try_into().unwrap(),
-                    max: s.max_blob_count.try_into().unwrap(),
-                })
+            cancun: get_blob_schedule(&si.chain_config, "cancun")
                 .unwrap_or_else(|| BlobSchedule::default().cancun),
-            prague: si
-                .chain_config
-                .blob_schedule
-                .get("prague")
-                .map(|s| ForkBlobSchedule {
-                    // Reth and Ethrex have some mismatched data type representations. Reth uses bigger ints.
-                    // Downcasting should never cause an overflow, but let's be safe and panic if this ever happens.
-                    base_fee_update_fraction: s.update_fraction.try_into().unwrap(),
-                    target: s.target_blob_count.try_into().unwrap(),
-                    max: s.max_blob_count.try_into().unwrap(),
-                })
+            prague: get_blob_schedule(&si.chain_config, "prague")
                 .unwrap_or_else(|| BlobSchedule::default().prague),
+            osaka: get_blob_schedule(&si.chain_config, "osaka")
+                .unwrap_or_else(|| BlobSchedule::default().osaka),
+            bpo1: get_blob_schedule(&si.chain_config, "bpo1"),
+            bpo2: get_blob_schedule(&si.chain_config, "bpo2"),
+            bpo3: get_blob_schedule(&si.chain_config, "bpo3"),
+            bpo4: get_blob_schedule(&si.chain_config, "bpo4"),
+            bpo5: get_blob_schedule(&si.chain_config, "bpo5"),
         },
         deposit_contract_address: si
             .chain_config
@@ -268,3 +255,19 @@ fn from_reth_witness_to_ethrex_witness(
         keys,
     })
 }
+
+fn get_blob_schedule(
+    chain_config: &alloy_genesis::ChainConfig,
+    name: &str,
+) -> Option<ethrex_common::types::ForkBlobSchedule> {
+    chain_config
+        .blob_schedule
+        .get(name)
+        .map(|s| ForkBlobSchedule {
+            // Reth and Ethrex have some mismatched data type representations. Reth uses bigger ints.
+            // Downcasting should never cause an overflow, but let's be safe and panic if this ever happens.
+            base_fee_update_fraction: s.update_fraction.try_into().unwrap(),
+            target: s.target_blob_count.try_into().unwrap(),
+            max: s.max_blob_count.try_into().unwrap(),
+        })
+}
diff --git a/ere-guests/stateless-validator/ethrex/risc0/Cargo.toml b/ere-guests/stateless-validator/ethrex/risc0/Cargo.toml
index a1026a71..ec1f769c 100644
--- a/ere-guests/stateless-validator/ethrex/risc0/Cargo.toml
+++ b/ere-guests/stateless-validator/ethrex/risc0/Cargo.toml
@@ -10,20 +10,23 @@ risc0-zkvm = { version = "3.0.3", default-features = false, features = [
     "std",
     "unstable",
 ] }
-rkyv = "0.8.10"
-
-zkvm_interface = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false, features = [
+risc0-zkvm-platform = { version = "=2.2.1", default-features = false, features = [
+    "sys-getenv",
+] }
+guest_program = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false, features = [
     "c-kzg",
 ] }
+rkyv = { version = "0.8.10", features = ["unaligned"] }
+
 
-ethrex-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-storage = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-rlp = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0" }
-ethrex-vm = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false, features = [
+ethrex-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-storage = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-rlp = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28" }
+ethrex-vm = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false, features = [
     "c-kzg",
 ] }
-ethrex-blockchain = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-l2-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
+ethrex-blockchain = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-l2-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
 
 [patch.crates-io]
 sha2 = { git = "https://github.com/risc0/RustCrypto-hashes", tag = "sha2-v0.10.8-risczero.0" }
@@ -44,4 +47,4 @@ c-kzg = { git = "https://github.com/risc0/c-kzg-4844", tag = "c-kzg/v1.0.3-riscz
 # bls12_381 = { git = "https://github.com/lambdaclass/zkcrypto-bls12_381", branch = "expose-fp-struct" }
 
 [features]
-l2 = ["zkvm_interface/l2"]
+l2 = ["guest_program/l2"]
diff --git a/ere-guests/stateless-validator/ethrex/risc0/src/main.rs b/ere-guests/stateless-validator/ethrex/risc0/src/main.rs
index bccb3b0d..8ad8e284 100644
--- a/ere-guests/stateless-validator/ethrex/risc0/src/main.rs
+++ b/ere-guests/stateless-validator/ethrex/risc0/src/main.rs
@@ -1,25 +1,34 @@
 use risc0_zkvm::guest::env;
 
+use guest_program::{execution::execution_program, input::ProgramInput};
 use rkyv::rancor::Error;
-use zkvm_interface::{execution::execution_program, io::ProgramInput};
 
 fn main() {
     println!("start reading input");
     let start = env::cycle_count();
     let input = env::read_frame();
-    let input = rkyv::from_bytes::<ProgramInput, Error>(&input).unwrap();
+    let mut input = rkyv::from_bytes::<ProgramInput, Error>(&input).unwrap();
     let end = env::cycle_count();
     eprintln!("reading input (cycle tracker): {}", end - start);
 
     println!("public inputs preparation");
     let start = env::cycle_count();
     let block_hash = input.blocks[0].hash();
+    // Ethrex forces the block hash of any provided block to be zero, instead of accepting pre-calculated values
+    // and just checking them again.
+    input.blocks[0].header.hash = Default::default();
     let parent_hash = input.blocks[0].header.parent_hash;
     let end = env::cycle_count();
     eprintln!("public inputs preparation (cycle tracker): {}", end - start);
 
     println!("start stateless validation");
     let start = env::cycle_count();
+    if input.blocks.len() != 1 {
+        env::commit(&block_hash.0);
+        env::commit(&parent_hash.0);
+        env::commit(&false);
+        return;
+    }
     let res = execution_program(input);
     let end = env::cycle_count();
     eprintln!("stateless validation (cycle tracker): {}", end - start);
diff --git a/ere-guests/stateless-validator/ethrex/sp1/Cargo.toml b/ere-guests/stateless-validator/ethrex/sp1/Cargo.toml
index 5666f41e..a41c4a49 100644
--- a/ere-guests/stateless-validator/ethrex/sp1/Cargo.toml
+++ b/ere-guests/stateless-validator/ethrex/sp1/Cargo.toml
@@ -10,27 +10,23 @@ sp1-zkvm = { version = "=5.0.8" }
 rkyv = { version = "0.8.10", features = ["std", "unaligned"] }
 
 
-guest_program = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0" }
+guest_program = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28" }
 
-ethrex-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-storage = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-rlp = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0" }
-ethrex-vm = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-blockchain = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
-ethrex-l2-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "5b4c943007b96152453e5a8f8a1a592608b11ea0", default-features = false }
+ethrex-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-storage = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-rlp = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28" }
+ethrex-vm = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-blockchain = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
+ethrex-l2-common = { git = "https://github.com/lambdaclass/ethrex.git", rev = "cfb805c6c70df1f6172f1982c9ed8952b7399d28", default-features = false }
 
 [patch.crates-io]
 sha2-v0-10-8 = { git = "https://github.com/sp1-patches/RustCrypto-hashes", package = "sha2", tag = "patch-sha2-0.10.8-sp1-4.0.0" }
 sha3-v0-10-8 = { git = "https://github.com/sp1-patches/RustCrypto-hashes", package = "sha3", tag = "patch-sha3-0.10.8-sp1-4.0.0" }
 crypto-bigint = { git = "https://github.com/sp1-patches/RustCrypto-bigint", tag = "patch-0.5.5-sp1-4.0.0" }
 tiny-keccak = { git = "https://github.com/sp1-patches/tiny-keccak", tag = "patch-2.0.2-sp1-4.0.0" }
-curve25519-dalek = { git = "https://github.com/sp1-patches/curve25519-dalek", tag = "patch-4.1.3-sp1-5.0.0" }
-curve25519-dalek-ng = { git = "https://github.com/sp1-patches/curve25519-dalek-ng", tag = "patch-4.1.1-sp1-5.0.0" }
 
 p256 = { git = "https://github.com/sp1-patches/elliptic-curves", tag = "patch-p256-13.2-sp1-5.0.0" }
 secp256k1 = { git = "https://github.com/sp1-patches/rust-secp256k1", tag = "patch-0.29.1-sp1-5.0.0" }
-substrate-bn = { git = "https://github.com/sp1-patches/bn", tag = "patch-0.6.0-sp1-5.0.0" }
-rsa = { git = "https://github.com/sp1-patches/RustCrypto-RSA", tag = "patch-0.9.6-sp1-5.0.0" }
 ecdsa = { git = "https://github.com/sp1-patches/signatures", tag = "patch-16.9-sp1-4.1.0" }
 k256 = { git = "https://github.com/sp1-patches/elliptic-curves", tag = "patch-k256-13.4-sp1-5.0.0" }
 
diff --git a/ere-guests/stateless-validator/ethrex/sp1/src/main.rs b/ere-guests/stateless-validator/ethrex/sp1/src/main.rs
index 35f7836a..2f6cd7a9 100644
--- a/ere-guests/stateless-validator/ethrex/sp1/src/main.rs
+++ b/ere-guests/stateless-validator/ethrex/sp1/src/main.rs
@@ -24,6 +24,7 @@ pub fn main() {
         sp1_zkvm::io::commit(&block_hash.0);
         sp1_zkvm::io::commit(&parent_hash.0);
         sp1_zkvm::io::commit(&false);
+        return;
     }
     let res = execution_program(input);
     println!("cycle-tracker-report-end: validation");
diff --git a/tests/src/stateless_validator.rs b/tests/src/stateless_validator.rs
index ccbb5034..11548c5c 100644
--- a/tests/src/stateless_validator.rs
+++ b/tests/src/stateless_validator.rs
@@ -13,7 +13,7 @@ mod tests {
 
     use crate::utils::{
         assert_executions_successful, assert_proving_successful, filter_el_zkvm_pairs_from_env,
-        get_env_zkvm_or_default, run_guest, untar,
+        run_guest, untar,
     };
 
     #[tokio::test]
@@ -24,7 +24,7 @@ mod tests {
             (ExecutionClient::Reth, ErezkVM::OpenVM),
             // (ExecutionClient::Reth, ErezkVM::Pico), // See https://github.com/eth-act/ere/issues/173
             (ExecutionClient::Ethrex, ErezkVM::SP1),
-            // (ExecutionClient::Ethrex, ErezkVM::Risc0), // See https://github.com/eth-act/ere/issues/121
+            (ExecutionClient::Ethrex, ErezkVM::Risc0),
             // (ExecutionClient::Ethrex, ErezkVM::OpenVM), // See https://github.com/eth-act/ere/issues/168
             // (ExecutionClient::Ethrex, ErezkVM::Pico), // See https://github.com/eth-act/ere/issues/174
         ]);
@@ -40,7 +40,7 @@ mod tests {
             (ExecutionClient::Reth, ErezkVM::Pico),
             (ExecutionClient::Reth, ErezkVM::Zisk),
             (ExecutionClient::Ethrex, ErezkVM::SP1),
-            // (ExecutionClient::Ethrex, ErezkVM::Risc0), // See https://github.com/eth-act/ere/issues/121
+            (ExecutionClient::Ethrex, ErezkVM::Risc0),
             // (ExecutionClient::Ethrex, ErezkVM::OpenVM), // See https://github.com/eth-act/ere/issues/168
             // (ExecutionClient::Ethrex, ErezkVM::Pico), // See https://github.com/eth-act/ere/issues/174
             // (ExecutionClient::Ethrex, ErezkVM::Zisk), // See https://github.com/eth-act/ere/issues/XXX
@@ -50,15 +50,17 @@ mod tests {
 
     #[tokio::test]
     async fn execute_mainnet_blocks() {
-        let zkvms = get_env_zkvm_or_default(vec![
-            ErezkVM::SP1,
-            ErezkVM::Risc0,
-            ErezkVM::OpenVM,
-            ErezkVM::Pico,
-            ErezkVM::Zisk,
+        let el_zkvms = filter_el_zkvm_pairs_from_env(vec![
+            (ExecutionClient::Reth, ErezkVM::SP1),
+            (ExecutionClient::Reth, ErezkVM::Risc0),
+            (ExecutionClient::Reth, ErezkVM::OpenVM),
+            (ExecutionClient::Reth, ErezkVM::Pico),
+            (ExecutionClient::Reth, ErezkVM::Zisk),
+            (ExecutionClient::Ethrex, ErezkVM::SP1),
+            (ExecutionClient::Ethrex, ErezkVM::Risc0),
         ]);
-        for zkvm in &zkvms {
-            println!("Using zkVM: {zkvm}");
+
+        for (el, zkvm) in el_zkvms {
             let bench_fixtures_dir = tempdir().unwrap();
             untar(
                 &PathBuf::from(env!("CARGO_MANIFEST_DIR"))
@@ -70,14 +72,14 @@ mod tests {
                 .join("mainnet-zkevm-fixtures-input");
 
             let output_folder = OutputDir::new().unwrap();
-            let el = ExecutionClient::Reth;
-            let el_str = el.as_ref().to_lowercase();
             let inputs = stateless_validator::stateless_validator_inputs(input_folder, el).unwrap();
             let len_inputs = inputs.len();
             assert_eq!(len_inputs, 15);
+
+            let el_str = el.as_ref().to_lowercase();
             run_guest(
                 &format!("stateless-validator/{el_str}"),
-                &[*zkvm],
+                &[zkvm],
                 inputs,
                 output_folder.path(),
                 Some(el_str),
@@ -89,41 +91,46 @@ mod tests {
 
     #[tokio::test]
     async fn execute_invalid_block() {
-        let eest_fixtures_path = PathBuf::from("assets/eest-invalid-block");
-        let bench_fixtures_dir = tempdir().unwrap();
-        ExecSpecTestBlocksAndWitnessBuilder::default()
-            .with_input_folder(eest_fixtures_path)
-            .unwrap()
-            .build()
-            .unwrap()
-            .generate_to_path(bench_fixtures_dir.path())
-            .await
-            .unwrap();
-
-        let output_folder = OutputDir::new().unwrap();
-        let el = ExecutionClient::Reth;
-        let el_str = el.as_ref().to_lowercase();
-        let inputs =
-            stateless_validator::stateless_validator_inputs(bench_fixtures_dir.path(), el).unwrap();
-
-        let len_inputs = inputs.len();
-        assert_eq!(len_inputs, 1);
-
-        run_guest(
-            &format!("stateless-validator/{el_str}"),
-            &get_env_zkvm_or_default(vec![
-                ErezkVM::SP1,
-                ErezkVM::Risc0,
-                ErezkVM::OpenVM,
-                ErezkVM::Pico,
-                ErezkVM::Zisk,
-            ]),
-            inputs,
-            output_folder.path(),
-            Some(el_str),
-            Action::Execute,
-        );
-        assert_executions_successful::<BlockMetadata>(output_folder.path(), len_inputs);
+        let el_zkvms = filter_el_zkvm_pairs_from_env(vec![
+            (ExecutionClient::Reth, ErezkVM::SP1),
+            (ExecutionClient::Reth, ErezkVM::Risc0),
+            (ExecutionClient::Reth, ErezkVM::OpenVM),
+            (ExecutionClient::Reth, ErezkVM::Pico),
+            (ExecutionClient::Reth, ErezkVM::Zisk),
+            (ExecutionClient::Ethrex, ErezkVM::SP1),
+            (ExecutionClient::Ethrex, ErezkVM::Risc0),
+        ]);
+        for (el, zkvm) in el_zkvms {
+            let eest_fixtures_path = PathBuf::from("assets/eest-invalid-block");
+            let bench_fixtures_dir = tempdir().unwrap();
+            ExecSpecTestBlocksAndWitnessBuilder::default()
+                .with_input_folder(eest_fixtures_path)
+                .unwrap()
+                .build()
+                .unwrap()
+                .generate_to_path(bench_fixtures_dir.path())
+                .await
+                .unwrap();
+
+            let output_folder = OutputDir::new().unwrap();
+            let inputs =
+                stateless_validator::stateless_validator_inputs(bench_fixtures_dir.path(), el)
+                    .unwrap();
+
+            let len_inputs = inputs.len();
+            assert_eq!(len_inputs, 1);
+
+            let el_str = el.as_ref().to_lowercase();
+            run_guest(
+                &format!("stateless-validator/{el_str}"),
+                &[zkvm],
+                inputs,
+                output_folder.path(),
+                Some(el_str),
+                Action::Execute,
+            );
+            assert_executions_successful::<BlockMetadata>(output_folder.path(), len_inputs);
+        }
     }
 
     async fn empty_block(action: Action, el_zkvms: &[(ExecutionClient, ErezkVM)]) {