Gnosis Pectra fork epoch (#7296)

~~* #7274~~
* #7295

Author: chong-he

common/eth2_network_config/built_in_network_configs/gnosis/config.yaml

@@ -43,7 +43,7 @@ DENEB_FORK_VERSION: 0x04000064
 DENEB_FORK_EPOCH: 889856 # 2024-03-11T18:30:20.000Z
 # Electra
 ELECTRA_FORK_VERSION: 0x05000064
-ELECTRA_FORK_EPOCH: 18446744073709551615
+ELECTRA_FORK_EPOCH: 1337856 # 2025-04-30T14:03:40.000Z
 # Fulu
 FULU_FORK_VERSION: 0x06000064
 FULU_FORK_EPOCH: 18446744073709551615
@@ -117,8 +117,20 @@ MAX_REQUEST_BLOB_SIDECARS: 768
 MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: 16384
 # `6`
 BLOB_SIDECAR_SUBNET_COUNT: 6
-# `uint64(6)`
-MAX_BLOBS_PER_BLOCK: 6
+# `uint64(2)`
+MAX_BLOBS_PER_BLOCK: 2
+
+# Electra
+# 2**7 * 10**9 (= 128,000,000,000)
+MIN_PER_EPOCH_CHURN_LIMIT_ELECTRA: 128000000000
+# 2**6 * 10**9 (= 64,000,000,000)
+MAX_PER_EPOCH_ACTIVATION_EXIT_CHURN_LIMIT: 64000000000
+# `2`
+BLOB_SIDECAR_SUBNET_COUNT_ELECTRA: 2
+# `uint64(2)`
+MAX_BLOBS_PER_BLOCK_ELECTRA: 2
+# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK_ELECTRA
+MAX_REQUEST_BLOB_SIDECARS_ELECTRA: 256
 
 # DAS
 NUMBER_OF_COLUMNS: 128

consensus/types/src/chain_spec.rs

@@ -1236,7 +1236,7 @@ impl ChainSpec {
              * Electra hard fork params
              */
             electra_fork_version: [0x05, 0x00, 0x00, 0x64],
-            electra_fork_epoch: None,
+            electra_fork_epoch: Some(Epoch::new(1337856)),
             unset_deposit_requests_start_index: u64::MAX,
             full_exit_request_amount: 0,
             min_activation_balance: option_wrapper(|| {
@@ -1258,7 +1258,7 @@ impl ChainSpec {
             })
             .expect("calculation does not overflow"),
             max_per_epoch_activation_exit_churn_limit: option_wrapper(|| {
-                u64::checked_pow(2, 8)?.checked_mul(u64::checked_pow(10, 9)?)
+                u64::checked_pow(2, 6)?.checked_mul(u64::checked_pow(10, 9)?)
             })
             .expect("calculation does not overflow"),
 
@@ -1300,7 +1300,7 @@ impl ChainSpec {
             max_request_data_column_sidecars: default_max_request_data_column_sidecars(),
             min_epochs_for_blob_sidecars_requests: 16384,
             blob_sidecar_subnet_count: default_blob_sidecar_subnet_count(),
-            max_blobs_per_block: default_max_blobs_per_block(),
+            max_blobs_per_block: 2,
 
             /*
              * Derived Deneb Specific
@@ -1313,9 +1313,9 @@ impl ChainSpec {
             /*
              * Networking Electra specific
              */
-            max_blobs_per_block_electra: default_max_blobs_per_block_electra(),
-            blob_sidecar_subnet_count_electra: default_blob_sidecar_subnet_count_electra(),
-            max_request_blob_sidecars_electra: default_max_request_blob_sidecars_electra(),
+            max_blobs_per_block_electra: 2,
+            blob_sidecar_subnet_count_electra: 2,
+            max_request_blob_sidecars_electra: 256,
 
             /*
              * Application specific