diff --git a/.env.example b/.env.example
index a1a2bf7a..0fe98d5f 100644
--- a/.env.example
+++ b/.env.example
@@ -22,3 +22,4 @@ SKIP_SIMULATION=true
 
 # Config for deploying contract
 ETHERSCAN_API_KEY=
+USE_CACHED_STARTING_BLOCK=false
diff --git a/book/getting-started/l2-output-oracle.md b/book/getting-started/l2-output-oracle.md
index 718cf117..25070cb3 100644
--- a/book/getting-started/l2-output-oracle.md
+++ b/book/getting-started/l2-output-oracle.md
@@ -12,7 +12,24 @@ git clone https://github.com/succinctlabs/op-succinct.git
 cd op-succinct
 ```
 
-### 2) Navigate to the contracts directory:
+### 2) Set environment variables:
+
+```bash
+cp .env.example .env
+```
+
+Make sure to set your `.env` with the following variables:
+
+```
+L1_RPC=...
+L1_BEACON_RPC=...
+L2_NODE_RPC=...
+L2_RPC=...
+PRIVATE_KEY=...
+ETHERSCAN_API_KEY=...
+```
+
+### 3) Navigate to the contracts directory:
 
 ```bash
 cd contracts
@@ -42,17 +59,6 @@ Inside the `contracts` folder there is a file called `zkconfig.json` that contai
 
 This foundry script will deploy the `ZKL2OutputOracle` contract to the specified L1 RPC and use the provided private key to sign the transaction.
 
-Make sure to set your env with the following variables:
-
-```
-L1_RPC=...
-L2_NODE_RPC=...
-PRIVATE_KEY=...
-ETHERSCAN_API_KEY=...
-```
-
-and then run the following command to deploy the contract:
-
 ```bash
 forge script script/ZKDeployer.s.sol:ZKDeployer \
     --rpc-url $L1_RPC \
diff --git a/book/getting-started/proposer.md b/book/getting-started/proposer.md
index 4c5c8208..9516e18f 100644
--- a/book/getting-started/proposer.md
+++ b/book/getting-started/proposer.md
@@ -32,6 +32,8 @@ In the root directory, create a file called `.env` (mirroring `.env.example`) an
 | `SP1_PRIVATE_KEY` | The private key for the SP1 account. |
 | `SP1_PROVER` | The type of prover to use (set to "network"). |
 | `SKIP_SIMULATION` | Whether to skip simulation of the proof before sending to the SP1 server (default is true). |
+| `USE_CACHED_STARTING_BLOCK` | Whether to use the cached starting block number from `zkconfig.json` (default is true). |
+| `ETHERSCAN_API_KEY` | The Etherscan API key to use for verifying the contract on Etherscan. |
 
 
 ## 2) Build the Proposer
diff --git a/contracts/zkconfig.json b/contracts/zkconfig.json
index ff2f64cc..6c9db47a 100644
--- a/contracts/zkconfig.json
+++ b/contracts/zkconfig.json
@@ -7,9 +7,9 @@
   "owner": "0x0000000000000000000000000000000000000000",
   "proposer": "0x0000000000000000000000000000000000000000",
   "rollupConfigHash": "0x7cfdc1b0168f70e9b2b7aaf126025ec80e6d476309b0803b30c6e58faaba4213",
-  "startingBlockNumber": 17070089,
-  "startingOutputRoot": "0xe3aba566f1b0238268c54eefac3abd4da4963e345d72ad9858764c3fe3dadad0",
-  "startingTimestamp": 1725942718,
+  "startingBlockNumber": 17075214,
+  "startingOutputRoot": "0x34246958c749cb3e22cc43597d6113c767ec020f6ecc4c0a7012b99e36db8c83",
+  "startingTimestamp": 1725952968,
   "submissionInterval": 150,
   "verifierGateway": "0x3B6041173B80E77f038f3F2C0f9744f04837185e",
   "vkey": "0x0020bd6cac24425070d1a352b97ae577579b63703811e14388050d6c816efc95"
diff --git a/scripts/prove/bin/fetch_rollup_config.rs b/scripts/prove/bin/fetch_rollup_config.rs
index 5292e5b9..6615fcc7 100644
--- a/scripts/prove/bin/fetch_rollup_config.rs
+++ b/scripts/prove/bin/fetch_rollup_config.rs
@@ -5,12 +5,12 @@ use op_succinct_client_utils::boot::hash_rollup_config;
 use op_succinct_host_utils::fetcher::{ChainMode, OPSuccinctDataFetcher};
 use serde_json::{json, Value};
 use sp1_sdk::{block_on, HashableKey, ProverClient};
-use std::{fs, path::PathBuf};
+use std::{env, fs, path::PathBuf};
 
 pub const AGG_ELF: &[u8] = include_bytes!("../../../elf/aggregation-elf");
 
 /// Fetch the rollup config from the rollup node as well as the relevant config for the L200 and save it to a file.
-/// 
+///
 fn save_rollup_config_to_zkconfig() -> Result<()> {
     let sp1_kona_data_fetcher = OPSuccinctDataFetcher::default();
 
@@ -21,7 +21,7 @@ fn save_rollup_config_to_zkconfig() -> Result<()> {
     let mut l2oo_config = get_l2oo_config_from_contracts(&workspace_root)?;
 
     // If the starting block number is not set, set it to 10 blocks before the latest block on L2.
-    if l2oo_config["startingBlockNumber"].as_u64().unwrap_or(0) == 0 {
+    if env::var("USE_CACHED_STARTING_BLOCK").unwrap_or("false".to_string()) != "true" {
         // Set the starting block number to 10 blocks before the latest block on L2.
         let latest_block = block_on(sp1_kona_data_fetcher.get_head(ChainMode::L2))?;
         l2oo_config["startingBlockNumber"] = json!(latest_block.number - 10);