feat: use DepositContract on ChainSpec (#4041)

Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

crates/primitives/src/chain/spec.rs

@@ -3,8 +3,8 @@ use crate::{
     forkid::ForkFilterKey,
     header::Head,
     proofs::genesis_state_root,
-    BlockNumber, Chain, ForkFilter, ForkHash, ForkId, Genesis, Hardfork, Header, SealedHeader,
-    H256, U256,
+    Address, BlockNumber, Chain, ForkFilter, ForkHash, ForkId, Genesis, Hardfork, Header,
+    SealedHeader, H160, H256, U256,
 };
 use hex_literal::hex;
 use once_cell::sync::Lazy;
@@ -55,7 +55,11 @@ pub static MAINNET: Lazy<Arc<ChainSpec>> = Lazy::new(|| {
             (Hardfork::Shanghai, ForkCondition::Timestamp(1681338455)),
         ]),
         // https://etherscan.io/tx/0xe75fb554e433e03763a1560646ee22dcb74e5274b34c5ad644e7c0f619a7e1d0
-        deposit_contract_deployment_block: Some(11052984),
+        deposit_contract: Some(DepositContract::new(
+            H160(hex!("00000000219ab540356cbb839cbe05303d7705fa")),
+            11052984,
+            H256(hex!("649bbc62d0e31342afea4e5cd82d4049e7e1ee912fc0889aa790803be39038c5")),
+        )),
     }
     .into()
 });
@@ -91,7 +95,11 @@ pub static GOERLI: Lazy<Arc<ChainSpec>> = Lazy::new(|| {
             (Hardfork::Shanghai, ForkCondition::Timestamp(1678832736)),
         ]),
         // https://goerli.etherscan.io/tx/0xa3c07dc59bfdb1bfc2d50920fed2ef2c1c4e0a09fe2325dbc14e07702f965a78
-        deposit_contract_deployment_block: Some(4367322),
+        deposit_contract: Some(DepositContract::new(
+            H160(hex!("ff50ed3d0ec03ac01d4c79aad74928bff48a7b2b")),
+            4367322,
+            H256(hex!("649bbc62d0e31342afea4e5cd82d4049e7e1ee912fc0889aa790803be39038c5")),
+        )),
     }
     .into()
 });
@@ -131,7 +139,11 @@ pub static SEPOLIA: Lazy<Arc<ChainSpec>> = Lazy::new(|| {
             (Hardfork::Shanghai, ForkCondition::Timestamp(1677557088)),
         ]),
         // https://sepolia.etherscan.io/tx/0x025ecbf81a2f1220da6285d1701dc89fb5a956b62562ee922e1a9efd73eb4b14
-        deposit_contract_deployment_block: Some(1273020),
+        deposit_contract: Some(DepositContract::new(
+            H160(hex!("7f02c3e3c98b133055b8b348b2ac625669ed295d")),
+            1273020,
+            H256(hex!("649bbc62d0e31342afea4e5cd82d4049e7e1ee912fc0889aa790803be39038c5")),
+        )),
     }
     .into()
 });
@@ -169,7 +181,7 @@ pub static DEV: Lazy<Arc<ChainSpec>> = Lazy::new(|| {
             ),
             (Hardfork::Shanghai, ForkCondition::Timestamp(0)),
         ]),
-        deposit_contract_deployment_block: Some(0),
+        deposit_contract: None, // TODO: do we even have?
     }
     .into()
 });
@@ -209,9 +221,9 @@ pub struct ChainSpec {
     /// The active hard forks and their activation conditions
     pub hardforks: BTreeMap<Hardfork, ForkCondition>,
 
-    /// The block at which the deposit contract for PoS was deployed.
+    /// The deposit contract deployed for PoS.
     #[serde(skip, default)]
-    pub deposit_contract_deployment_block: Option<BlockNumber>,
+    pub deposit_contract: Option<DepositContract>,
 }
 
 impl ChainSpec {
@@ -444,7 +456,7 @@ impl From<Genesis> for ChainSpec {
             fork_timestamps: ForkTimestamps::from_hardforks(&hardforks),
             hardforks,
             paris_block_and_final_difficulty: None,
-            deposit_contract_deployment_block: None,
+            deposit_contract: None,
         }
     }
 }
@@ -667,7 +679,7 @@ impl ChainSpecBuilder {
             fork_timestamps: ForkTimestamps::from_hardforks(&self.hardforks),
             hardforks: self.hardforks,
             paris_block_and_final_difficulty: None,
-            deposit_contract_deployment_block: None,
+            deposit_contract: None,
         }
     }
 }
@@ -960,6 +972,23 @@ where
     }
 }
 
+/// PoS deposit contract details.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct DepositContract {
+    /// Deposit Contract Address
+    pub address: Address,
+    /// Deployment Block
+    pub block: BlockNumber,
+    /// `DepositEvent` event signature
+    pub topic: H256,
+}
+
+impl DepositContract {
+    fn new(address: Address, block: BlockNumber, topic: H256) -> Self {
+        DepositContract { address, block, topic }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use crate::{

crates/primitives/src/hardfork.rs

@@ -164,7 +164,7 @@ mod tests {
             hardforks: BTreeMap::from([(Hardfork::Frontier, ForkCondition::Never)]),
             fork_timestamps: Default::default(),
             paris_block_and_final_difficulty: None,
-            deposit_contract_deployment_block: None,
+            deposit_contract: None,
         };
 
         assert_eq!(Hardfork::Frontier.fork_id(&spec), None);
@@ -179,7 +179,7 @@ mod tests {
             hardforks: BTreeMap::from([(Hardfork::Shanghai, ForkCondition::Never)]),
             fork_timestamps: Default::default(),
             paris_block_and_final_difficulty: None,
-            deposit_contract_deployment_block: None,
+            deposit_contract: None,
         };
 
         assert_eq!(Hardfork::Shanghai.fork_filter(&spec), None);