Make genesis block timestamp hardcoded.

crates/fuel-core/src/service/genesis.rs

@@ -285,7 +285,8 @@ pub fn create_genesis_block(config: &Config) -> Block {
             consensus: ConsensusHeader::<Empty> {
                 prev_root,
                 height,
-                time: fuel_core_types::tai64::Tai64::UNIX_EPOCH,
+                // The time is set to UNIX_EPOCH + 10 leap seconds to make backward compatibility
+                time: fuel_core_types::tai64::Tai64(4611686018427387914),
                 generated: Empty,
             },
         },

version-compatibility/forkless-upgrade/src/genesis.rs

@@ -0,0 +1,42 @@
+#![allow(non_snake_case)]
+use crate::tests_helper::{
+    LatestFuelCoreDriver,
+    IGNITION_TESTNET_SNAPSHOT,
+};
+use latest_fuel_core_type::fuel_tx::Bytes32;
+use std::str::FromStr;
+
+#[tokio::test(flavor = "multi_thread")]
+async fn test__genesis_block__hash() {
+    let latest_node = LatestFuelCoreDriver::spawn(&[
+        "--debug",
+        "--poa-instant",
+        "true",
+        "--snapshot",
+        IGNITION_TESTNET_SNAPSHOT,
+        "--enable-relayer",
+        "--relayer",
+        "https://eth-mainnet.public.blastapi.io",
+        "--relayer-da-deploy-height",
+        "5791365",
+        "--relayer-v2-listening-contracts",
+        "0x768f9459E3339A1F7d59CcF24C80Eb4A711a01FB",
+    ])
+    .await
+    .unwrap();
+
+    // Given
+    let original_block = latest_node
+        .client
+        .block_by_height(0u32.into())
+        .await
+        .expect("Failed to get blocks")
+        .expect("Genesis block should exists");
+    assert_eq!(
+        original_block.id,
+        Bytes32::from_str(
+            "0x19ac99bf59711aca047b28443e599e26f733291c2fa45f5f309b2c5c9712b215"
+        )
+        .unwrap()
+    )
+}

version-compatibility/forkless-upgrade/src/lib.rs

@@ -6,6 +6,8 @@ mod backward_compatibility;
 #[cfg(test)]
 mod forward_compatibility;
 #[cfg(test)]
+mod genesis;
+#[cfg(test)]
 pub(crate) mod tests_helper;
 
 #[cfg(test)]