Add constants for sepolia cancun/deneb upgrade

Author: eunsoo-icon

bmv/eth2/src/main/java/foundation/icon/btp/bmv/eth2/BlockUpdate.java

@@ -167,6 +167,8 @@ private static byte[] computeForkVersion(BigInteger epoch, byte[] genesisValidat
                 return Constants.MAINNET_ALTAIR_VERSION;
             return Constants.MAINNET_GENESIS_VERSION;
         } else if (Arrays.equals(genesisValidatorsRoot, Constants.SEPOLIA_GENESIS_VALIDATORS_ROOT)) {
+            if (epoch.compareTo(Constants.SEPOLIA_DENEB_EPOCH) >= 0)
+                return Constants.SEPOLIA_DENEB_VERSION;
             if (epoch.compareTo(Constants.SEPOLIA_CAPELLA_EPOCH) >= 0)
                 return Constants.SEPOLIA_CAPELLA_VERSION;
             if (epoch.compareTo(Constants.SEPOLIA_BELLATRIX_EPOCH) >= 0)

bmv/eth2/src/main/java/foundation/icon/btp/bmv/eth2/Constants.java

@@ -27,16 +27,21 @@ public class Constants {
     public static final byte[] MAINNET_GENESIS_VALIDATORS_ROOT = StringUtil.hexToBytes("4b363db94e286120d76eb905340fdd4e54bfe9f06bf33ff6cf5ad27f511bfe95");
     public static final byte[] SEPOLIA_GENESIS_VALIDATORS_ROOT = StringUtil.hexToBytes("d8ea171f3c94aea21ebc42a1ed61052acf3f9209c00e4efbaaddac09ed9b8078");
 
+    // https://github.com/ethereum/execution-specs/tree/master/network-upgrades/mainnet-upgrades
+    // read via /eth/v1/config/fork_schedule
     public static final BigInteger MAINNET_ALTAIR_EPOCH = BigInteger.valueOf(74240);
     public static final BigInteger MAINNET_BELLATRIX_EPOCH = BigInteger.valueOf(144896);
     public static final BigInteger MAINNET_CAPELLA_EPOCH = BigInteger.valueOf(194048);
-    public static final BigInteger SEPOLIA_ALTAIR_EPOCH = BigInteger.valueOf(50);
-    public static final BigInteger SEPOLIA_BELLATRIX_EPOCH = BigInteger.valueOf(100);
-    public static final BigInteger SEPOLIA_CAPELLA_EPOCH = BigInteger.valueOf(56832);
     public static final byte[] MAINNET_CAPELLA_VERSION = StringUtil.hexToBytes("03000000");
     public static final byte[] MAINNET_BELLATRIX_VERSION = StringUtil.hexToBytes("02000000");
     public static final byte[] MAINNET_ALTAIR_VERSION = StringUtil.hexToBytes("01000000");
     public static final byte[] MAINNET_GENESIS_VERSION = StringUtil.hexToBytes("00000000");
+
+    public static final BigInteger SEPOLIA_ALTAIR_EPOCH = BigInteger.valueOf(50);
+    public static final BigInteger SEPOLIA_BELLATRIX_EPOCH = BigInteger.valueOf(100);
+    public static final BigInteger SEPOLIA_CAPELLA_EPOCH = BigInteger.valueOf(56832);
+    public static final BigInteger SEPOLIA_DENEB_EPOCH = BigInteger.valueOf(132608);
+    public static final byte[] SEPOLIA_DENEB_VERSION = StringUtil.hexToBytes("90000073");
     public static final byte[] SEPOLIA_CAPELLA_VERSION = StringUtil.hexToBytes("90000072");
     public static final byte[] SEPOLIA_BELLATRIX_VERSION = StringUtil.hexToBytes("90000071");
     public static final byte[] SEPOLIA_ALTAIR_VERSION = StringUtil.hexToBytes("90000070");