Arrow Glacier

src/chain/difficulty.rs

@@ -99,7 +99,10 @@ pub fn canonical_difficulty(
 
     if rev >= Revision::Byzantium {
         let bomb_delay = {
-            if rev >= Revision::London {
+            if block_number >= config.arrow_glacier_block.unwrap_or(BlockNumber(u64::MAX)) {
+                // https://eips.ethereum.org/EIPS/eip-4345
+                10_700_000
+            } else if rev >= Revision::London {
                 // https://eips.ethereum.org/EIPS/eip-3554
                 9_700_000
             } else if block_number >= config.muir_glacier_block.unwrap_or(BlockNumber(u64::MAX)) {

src/models/config.rs

@@ -39,6 +39,7 @@ pub struct ChainConfig {
     pub muir_glacier_block: Option<BlockNumber>,
     pub berlin_block: Option<BlockNumber>,
     pub london_block: Option<BlockNumber>,
+    pub arrow_glacier_block: Option<BlockNumber>,
 }
 
 impl ChainConfig {
@@ -55,6 +56,7 @@ impl ChainConfig {
             self.muir_glacier_block,
             self.berlin_block,
             self.london_block,
+            self.arrow_glacier_block,
         ]
         .iter()
         .filter_map(|b| {
@@ -99,3 +101,22 @@ impl ChainConfig {
             .unwrap_or(false)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn distinct_block_numbers() {
+        assert_eq!(
+            crate::res::genesis::MAINNET.config.gather_forks(),
+            vec![
+                1_150_000, 1_920_000, 2_463_000, 2_675_000, 4_370_000, 7_280_000, 9_069_000,
+                9_200_000, 12_244_000, 12_965_000, 13_773_000
+            ]
+            .into_iter()
+            .map(BlockNumber)
+            .collect()
+        );
+    }
+}

src/res/genesis/mainnet.json

@@ -26813,6 +26813,7 @@
     "petersburgBlock": 7280000,
     "istanbulBlock": 9069000,
     "muirGlacierBlock": 9200000,
+    "arrowGlacierBlock": 13773000,
     "berlinBlock": 12244000,
     "londonBlock": 12965000,
     "sealEngine": "Ethash"