diff --git a/.gitignore b/.gitignore
index 4f024599..ddc787f3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@
 /scripts/benchmark-results.*
 /test/
 /integration_logs
+genesis.json
 
 # editors
 .code
diff --git a/Cargo.lock b/Cargo.lock
index 542b3b7a..92b62b33 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6525,6 +6525,7 @@ dependencies = [
  "jsonrpsee 0.24.7",
  "metrics",
  "op-alloy-consensus",
+ "op-alloy-network",
  "op-alloy-rpc-types-engine",
  "rand 0.8.5",
  "reth",
diff --git a/crates/op-rbuilder/Cargo.toml b/crates/op-rbuilder/Cargo.toml
index d4978dc4..01e8ab5e 100644
--- a/crates/op-rbuilder/Cargo.toml
+++ b/crates/op-rbuilder/Cargo.toml
@@ -53,6 +53,7 @@ alloy-network.workspace = true
 # op
 op-alloy-consensus.workspace = true
 op-alloy-rpc-types-engine.workspace = true
+op-alloy-network.workspace = true
 
 revm.workspace = true
 
diff --git a/crates/op-rbuilder/src/integration/integration_test.rs b/crates/op-rbuilder/src/integration/integration_test.rs
index 93069937..65f2221c 100644
--- a/crates/op-rbuilder/src/integration/integration_test.rs
+++ b/crates/op-rbuilder/src/integration/integration_test.rs
@@ -4,6 +4,9 @@ mod tests {
         op_rbuilder::OpRbuilderConfig, op_reth::OpRethConfig, IntegrationFramework,
     };
     use crate::tester::{BlockGenerator, EngineApi};
+    use alloy_provider::{Provider, ProviderBuilder};
+    use alloy_rpc_types_eth::BlockTransactionsKind;
+    use op_alloy_network::Optimism;
     use std::path::PathBuf;
     use uuid::Uuid;
 
@@ -11,7 +14,7 @@ mod tests {
         "0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d";
 
     #[tokio::test]
-    async fn integration_test_chain_produces_blocks() {
+    async fn integration_test_chain_produces_blocks() -> eyre::Result<()> {
         // This is a simple test using the integration framework to test that the chain
         // produces blocks.
         let mut framework = IntegrationFramework::new().unwrap();
@@ -28,6 +31,7 @@ mod tests {
             .data_dir(builder_data_dir)
             .auth_rpc_port(1234)
             .network_port(1235)
+            .http_port(1238)
             .with_builder_private_key(BUILDER_PRIVATE_KEY);
 
         // create the validation reth node
@@ -49,16 +53,34 @@ mod tests {
         let validation_api = EngineApi::new("http://localhost:1236").unwrap();
 
         let mut generator = BlockGenerator::new(&engine_api, Some(&validation_api), false, 1);
-        generator.init().await.unwrap();
+        generator.init().await?;
+
+        let provider = ProviderBuilder::new()
+            .network::<Optimism>()
+            .on_http("http://localhost:1238".parse()?);
 
         for _ in 0..10 {
-            generator.generate_block().await.unwrap();
+            let block_hash = generator.generate_block().await?;
+
+            // query the block and the transactions inside the block
+            let block = provider
+                .get_block_by_hash(block_hash, BlockTransactionsKind::Hashes)
+                .await?
+                .expect("block");
+
+            for hash in block.transactions.hashes() {
+                let _ = provider
+                    .get_transaction_receipt(hash)
+                    .await?
+                    .expect("receipt");
+            }
         }
 
         // there must be a line logging the monitoring transaction
         op_rbuilder
             .find_log_line("Committed block built by builder")
-            .await
-            .unwrap();
+            .await?;
+
+        Ok(())
     }
 }
diff --git a/crates/op-rbuilder/src/integration/op_rbuilder.rs b/crates/op-rbuilder/src/integration/op_rbuilder.rs
index d2a1e2ec..279889c1 100644
--- a/crates/op-rbuilder/src/integration/op_rbuilder.rs
+++ b/crates/op-rbuilder/src/integration/op_rbuilder.rs
@@ -51,6 +51,11 @@ impl OpRbuilderConfig {
         self
     }
 
+    pub fn http_port(mut self, port: u16) -> Self {
+        self.http_port = Some(port);
+        self
+    }
+
     pub fn with_builder_private_key(mut self, private_key: &str) -> Self {
         self.builder_private_key = Some(private_key.to_string());
         self
diff --git a/crates/op-rbuilder/src/tester/mod.rs b/crates/op-rbuilder/src/tester/mod.rs
index 9edd2791..592f86ef 100644
--- a/crates/op-rbuilder/src/tester/mod.rs
+++ b/crates/op-rbuilder/src/tester/mod.rs
@@ -6,7 +6,7 @@ use alloy_primitives::Address;
 use alloy_primitives::Bytes;
 use alloy_primitives::TxKind;
 use alloy_primitives::B256;
-use alloy_primitives::U256;
+use alloy_primitives::{hex, U256};
 use alloy_rpc_types_engine::ExecutionPayloadV1;
 use alloy_rpc_types_engine::ExecutionPayloadV2;
 use alloy_rpc_types_engine::PayloadAttributes;
@@ -181,6 +181,11 @@ pub async fn generate_genesis(output: Option<String>) -> eyre::Result<()> {
     Ok(())
 }
 
+// L1 block info for OP mainnet block 124665056 (stored in input of tx at index 0)
+//
+// https://optimistic.etherscan.io/tx/0x312e290cf36df704a2217b015d6455396830b0ce678b860ebfcc30f41403d7b1
+const FJORD_DATA: &[u8] = &hex!("440a5e200000146b000f79c500000000000000040000000066d052e700000000013ad8a3000000000000000000000000000000000000000000000000000000003ef1278700000000000000000000000000000000000000000000000000000000000000012fdf87b89884a61e74b322bbcf60386f543bfae7827725efaaf0ab1de2294a590000000000000000000000006887246668a3b87f54deb3b94ba47a6f63f32985");
+
 /// A system that continuously generates blocks using the engine API
 pub struct BlockGenerator<'a> {
     engine_api: &'a EngineApi,
@@ -308,6 +313,40 @@ impl<'a> BlockGenerator<'a> {
             .as_secs();
         let timestamp = timestamp + self.block_time_secs;
 
+        // Add L1 block info as the first transaction in every L2 block
+        // This deposit transaction contains L1 block metadata required by the L2 chain
+        // Currently using hardcoded data from L1 block 124665056
+        // If this info is not provided, Reth cannot decode the receipt for any transaction
+        // in the block since it also includes this info as part of the result.
+        // It does not matter if the to address (4200000000000000000000000000000000000015) is
+        // not deployed on the L2 chain since Reth queries the block to get the info and not the contract.
+        let block_info_tx: Bytes = {
+            let deposit_tx = TxDeposit {
+                source_hash: B256::default(),
+                from: address!("DeaDDEaDDeAdDeAdDEAdDEaddeAddEAdDEAd0001"),
+                to: TxKind::Call(address!("4200000000000000000000000000000000000015")),
+                mint: None,
+                value: U256::default(),
+                gas_limit: 210000,
+                is_system_transaction: true,
+                input: FJORD_DATA.into(),
+            };
+
+            // Create a temporary signer for the deposit
+            let signer = Signer::random();
+            let signed_tx = signer.sign_tx(OpTypedTransaction::Deposit(deposit_tx))?;
+            signed_tx.encoded_2718().into()
+        };
+
+        let transactions = if let Some(transactions) = transactions {
+            // prepend the block info transaction
+            let mut all_transactions = vec![block_info_tx];
+            all_transactions.extend(transactions.into_iter());
+            all_transactions
+        } else {
+            vec![block_info_tx]
+        };
+
         let result = self
             .engine_api
             .update_forkchoice(
@@ -321,7 +360,7 @@ impl<'a> BlockGenerator<'a> {
                         prev_randao: B256::ZERO,
                         suggested_fee_recipient: Default::default(),
                     },
-                    transactions,
+                    transactions: Some(transactions),
                     no_tx_pool: Some(self.no_tx_pool),
                     gas_limit: Some(10000000000),
                     eip_1559_params: None,