Chiado Pectra (#8276)

Author: LukaszRozmej

src/Nethermind/Chains/chiado.json

@@ -83,11 +83,25 @@
     "transactionPermissionContract": "0x4000000000000000000000000000000000000001",
     "transactionPermissionContractTransition": "0x0",
     "terminalTotalDifficulty": "231707791542740786049188744689299064356246512",
+    "eip2537TransitionTimestamp": "0x67C96E4C",
+    "eip2935TransitionTimestamp": "0x67C96E4C",
+    "eip6110TransitionTimestamp": "0x67C96E4C",
+    "eip7002TransitionTimestamp": "0x67C96E4C",
+    "eip7251TransitionTimestamp": "0x67C96E4C",
+    "eip7623TransitionTimestamp": "0x67C96E4C",
+    "eip7702TransitionTimestamp": "0x67C96E4C",
+    "eip4844FeeCollectorTransitionTimestamp": "0x67C96E4C",
+    "depositContractAddress": "0xb97036A26259B7147018913bD58a774cf91acf25",
     "blobSchedule": {
       "cancun": {
         "target": 1,
         "max": 2,
         "baseFeeUpdateFraction": "0x10fafa"
+      },
+      "prague": {
+        "target": 1,
+        "max": 2,
+        "baseFeeUpdateFraction": "0x10fafa"
       }
     }
   },

src/Nethermind/Chains/gnosis.json

@@ -90,6 +90,7 @@
     "transactionPermissionContract": "0x7Dd7032AA75A37ea0b150f57F899119C7379A78b",
     "transactionPermissionContractTransition": 9186425,
     "terminalTotalDifficulty": "8626000000000000000000058750000000000000000000",
+    "depositContractAddress": "0x0B98057eA310F4d31F2a452B414647007d1645d9",
     "blobSchedule": {
       "cancun": {
         "target": 1,

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

@@ -157,8 +157,10 @@ 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", ChiadoSpecProvider.CancunTimestamp, "First Shanghai timestamp")]
-    [TestCase(4_000_000, ChiadoSpecProvider.CancunTimestamp, "0x5fbc16bc", 0ul, "First Cancun timestamp")]
-    [TestCase(5_000_000, 9984930320ul, "0x5fbc16bc", 0ul, "Future Cancun timestamp")]
+    [TestCase(4_000_000, ChiadoSpecProvider.CancunTimestamp, "0x5fbc16bc", 1741254220ul, "First Cancun timestamp")]
+    [TestCase(5_000_000, 1741254219u, "0x5fbc16bc", 1741254220ul, "Future Cancun timestamp")]
+    [TestCase(5_000_000, 1741254220u, "0x8BA51786", 0ul, "First Prague timestamp")]
+    [TestCase(5_000_000, 1741254420u, "0x8BA51786", 0ul, "Future Prague 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.Test/ChainSpecStyle/ChainSpecBasedSpecProviderTests.cs

@@ -229,9 +229,9 @@ public static IEnumerable<TestCaseData> ChiadoActivations
             yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.CancunTimestamp - 1)) { TestName = "Before Cancun" };
             yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.CancunTimestamp)) { TestName = "Cancun" };
             yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.CancunTimestamp + 100000000)) { TestName = "Future" };
-            //     yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp - 1)) { TestName = "Before Prague" };
-            //     yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp)) { TestName = "Prague" };
-            //     yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp + 100000000)) { TestName = "Future" };
+            yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp - 1)) { TestName = "Before Prague" };
+            yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp)) { TestName = "Prague" };
+            yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp + 100000000)) { TestName = "Future" };
         }
     }
 
@@ -260,9 +260,10 @@ public void Chiado_loads_properly(ForkActivation forkActivation)
 
         VerifyGnosisShanghaiSpecifics(preShanghaiSpec, postShanghaiSpec);
         VerifyGnosisCancunSpecifics(postCancunSpec);
-        // VerifyGnosisPragueSpecifics(prePragueSpec, postPragueSpec, ChiadoSpecProvider.FeeCollector);
+        VerifyGnosisPragueSpecifics(prePragueSpec, postPragueSpec, ChiadoSpecProvider.FeeCollector);
         GetTransitionTimestamps(chainSpec.Parameters).Should().AllSatisfy(
             static t => ValidateSlotByTimestamp(t, ChiadoSpecProvider.BeaconChainGenesisTimestampConst, GnosisBlockTime).Should().BeTrue());
+        Assert.That(postPragueSpec.DepositContractAddress, Is.EqualTo(new Address("0xb97036A26259B7147018913bD58a774cf91acf25")));
     }
 
     public static IEnumerable<TestCaseData> GnosisActivations
@@ -325,7 +326,9 @@ public void Gnosis_loads_properly(ForkActivation forkActivation)
 
         VerifyGnosisShanghaiSpecifics(preShanghaiSpec, postShanghaiSpec);
         VerifyGnosisCancunSpecifics(postCancunSpec);
+        // ToDo uncomment in Pectra
         // VerifyGnosisPragueSpecifics(prePragueSpec, postPragueSpec, GnosisSpecProvider.FeeCollector);
+        // Assert.That(postPragueSpec.DepositContractAddress, Is.EqualTo(new Address("0x0B98057eA310F4d31F2a452B414647007d1645d9")));
         GetTransitionTimestamps(chainSpec.Parameters).Should().AllSatisfy(
             static t => ValidateSlotByTimestamp(t, GnosisSpecProvider.BeaconChainGenesisTimestampConst, GnosisBlockTime).Should().BeTrue());
     }

src/Nethermind/Nethermind.Specs/ChiadoSpecProvider.cs

@@ -14,8 +14,8 @@ public class ChiadoSpecProvider : ISpecProvider
     public const ulong BeaconChainGenesisTimestampConst = 0x6343ee4c;
     public const ulong ShanghaiTimestamp = 0x646e0e4c;
     public const ulong CancunTimestamp = 0x65ba8e4c;
-    //TODO correct this timestamp!
-    public const ulong PragueTimestamp = ulong.MaxValue - 2;
+    public const ulong PragueTimestamp = 0x67C96E4C;
+
     public static readonly Address FeeCollector = new("0x1559000000000000000000000000000000000000");
 
     private ChiadoSpecProvider() { }

src/Nethermind/Nethermind.Specs/GnosisForks/18_PragueGnosis.cs

@@ -13,6 +13,9 @@ public class PragueGnosis : Forks.Prague
     protected PragueGnosis() : base()
     {
         IsEip4844FeeCollectorEnabled = true;
+        BlobBaseFeeUpdateFraction = 0x10fafa;
+        TargetBlobCount = 1;
+        MaxBlobCount = 2;
     }
 
     public new static IReleaseSpec Instance => LazyInitializer.EnsureInitialized(ref _instance, static () => new PragueGnosis());