Revise Chiado Shanghai timestamp (#5729)

Author: rubo

src/Nethermind/Chains/chiado.json

@@ -44,7 +44,7 @@
     "gasLimitBoundDivisor": "0x400",
     "maximumExtraDataSize": "0x20",
     "maxCodeSize": "0x6000",
-    "maxCodeSizeTransitionTimestamp": "0x646dff10",
+    "maxCodeSizeTransitionTimestamp": "0x646e0e4c",
     "minGasLimit": "0x1388",
     "eip140Transition": "0x0",
     "eip211Transition": "0x0",
@@ -64,10 +64,10 @@
     "eip3529Transition": "0x0",
     "eip3541Transition": "0x0",
     "eip1559Transition": "0x0",
-    "eip3651TransitionTimestamp": "0x646dff10",
-    "eip3855TransitionTimestamp": "0x646dff10",
-    "eip3860TransitionTimestamp": "0x646dff10",
-    "eip4895TransitionTimestamp": "0x646dff10",
+    "eip3651TransitionTimestamp": "0x646e0e4c",
+    "eip3855TransitionTimestamp": "0x646e0e4c",
+    "eip3860TransitionTimestamp": "0x646e0e4c",
+    "eip4895TransitionTimestamp": "0x646e0e4c",
     "eip1559BaseFeeMaxChangeDenominator": "0x8",
     "eip1559ElasticityMultiplier": "0x2",
     "eip1559FeeCollector": "0x1559000000000000000000000000000000000000",

src/Nethermind/Nethermind.Network.Test/ForkInfoTests.cs

@@ -202,6 +202,8 @@ public void Fork_id_and_hash_as_expected_on_gnosis(long head, ulong headTimestam
         }
 
     [TestCase(0L, 0UL, "0x50d39d7b", ChiadoSpecProvider.ShanghaiTimestamp, "Chiado genesis")]
+    [TestCase(3945317, ChiadoSpecProvider.ShanghaiTimestamp, "0xa15a4252", 0ul, "First Shanghai timestamp")]
+    [TestCase(9945337, 9984930320ul, "0xa15a4252", 0ul, "Future Shanghai timestamp")]
     public void Fork_id_and_hash_as_expected_on_chiado(long head, ulong headTimestamp, string forkHashHex, ulong next, string description)
     {
         ChainSpecLoader loader = new ChainSpecLoader(new EthereumJsonSerializer());

src/Nethermind/Nethermind.Specs/ChiadoSpecProvider.cs

@@ -10,7 +10,7 @@ namespace Nethermind.Specs;
 
 public class ChiadoSpecProvider : ISpecProvider
 {
-    public const ulong ShanghaiTimestamp = 0x646dff10UL;
+    public const ulong ShanghaiTimestamp = 0x646e0e4cUL;
 
     private ChiadoSpecProvider() { }