Add pragueTime configuration (hyperledger#6473)

Wire through configuration for the Prague fork, including speculative PragueGasCalculator, precompiles, genesis options, and implied forks in GenesisState. Signed-off-by: Danno Ferrin <danno.ferrin@swirldslabs.com>
jflo · Jan 30, 2024 · eed871f · eed871f
1 parent 75ef4f4
commit eed871f
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Showing 37 changed files with 4,507 additions and 166 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -20,6 +20,7 @@
 - Introduce `--Xbonsai-limit-trie-logs-enabled` experimental feature which by default will only retain the latest 512 trie logs, saving about 3GB per week in database growth [#5390](https://github.com/hyperledger/besu/issues/5390)
 - Introduce `besu storage x-trie-log prune` experimental offline subcommand which will prune all redundant trie logs except the latest 512 [#6303](https://github.com/hyperledger/besu/pull/6303)
 - Github Actions based build.
+- Added configuration options for `pragueTime` to genesis file for Prague fork development [#6473](https://github.com/hyperledger/besu/pull/6473)
 
 ### Bug fixes
 - Fix the way an advertised host configured with `--p2p-host` is treated when communicating with the originator of a PING packet [#6225](https://github.com/hyperledger/besu/pull/6225)

diff --git a/...tests/src/test/resources/jsonrpc/engine/eip6110/test-cases/01_cancun_prepare_payload.json b/...tests/src/test/resources/jsonrpc/engine/eip6110/test-cases/01_cancun_prepare_payload.json
@@ -4,8 +4,8 @@
     "method": "engine_forkchoiceUpdatedV3",
     "params": [
       {
-        "headBlockHash": "0x26118cf71453320edcebbc4ebb34af5b578087a32385b80108bf691fa23efc42",
-        "safeBlockHash": "0x26118cf71453320edcebbc4ebb34af5b578087a32385b80108bf691fa23efc42",
+        "headBlockHash": "0x78a301e0d846bd169889c9755c9aa4ce2972dfc4bd63de61f3303887d3e81f98",
+        "safeBlockHash": "0x78a301e0d846bd169889c9755c9aa4ce2972dfc4bd63de61f3303887d3e81f98",
         "finalizedBlockHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
       },
       {
@@ -24,11 +24,11 @@
     "result": {
       "payloadStatus": {
         "status": "VALID",
-        "latestValidHash": "0x26118cf71453320edcebbc4ebb34af5b578087a32385b80108bf691fa23efc42",
+        "latestValidHash": "0x78a301e0d846bd169889c9755c9aa4ce2972dfc4bd63de61f3303887d3e81f98",
         "validationError": null
       },
-      "payloadId": "0x282643c14de2dfef"
+      "payloadId": "0x282643d459a6f711"
     }
   },
-  "statusCode" : 200
+  "statusCode": 200
 }
diff --git a/...ts/tests/src/test/resources/jsonrpc/engine/eip6110/test-cases/02_cancun_getPayloadV3.json b/...ts/tests/src/test/resources/jsonrpc/engine/eip6110/test-cases/02_cancun_getPayloadV3.json
@@ -3,7 +3,7 @@
     "jsonrpc": "2.0",
     "method": "engine_getPayloadV3",
     "params": [
-      "0x282643c14de2dfef"
+      "0x282643d459a6f711"
     ],
     "id": 67
   },
@@ -12,7 +12,7 @@
     "id": 67,
     "result": {
       "executionPayload": {
-        "parentHash": "0x26118cf71453320edcebbc4ebb34af5b578087a32385b80108bf691fa23efc42",
+        "parentHash": "0x78a301e0d846bd169889c9755c9aa4ce2972dfc4bd63de61f3303887d3e81f98",
         "feeRecipient": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
         "stateRoot": "0x9b8c4a9a86cb49252075c0db2f0e72fb1e49350a0f70ea36f26f700201961e62",
         "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
@@ -28,8 +28,8 @@
         "withdrawals": [],
         "blockNumber": "0x1",
         "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
-        "blockHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
-        "blobGasUsed": "0x0"
+        "blobGasUsed": "0x0",
+        "blockHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315"
       },
       "blockValue": "0x0",
       "blobsBundle": {

diff --git a/...ts/tests/src/test/resources/jsonrpc/engine/eip6110/test-cases/03_cancun_newPayloadV3.json b/...ts/tests/src/test/resources/jsonrpc/engine/eip6110/test-cases/03_cancun_newPayloadV3.json
@@ -4,7 +4,7 @@
     "method": "engine_newPayloadV3",
     "params": [
       {
-        "parentHash": "0x26118cf71453320edcebbc4ebb34af5b578087a32385b80108bf691fa23efc42",
+        "parentHash": "0x78a301e0d846bd169889c9755c9aa4ce2972dfc4bd63de61f3303887d3e81f98",
         "feeRecipient": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
         "stateRoot": "0x9b8c4a9a86cb49252075c0db2f0e72fb1e49350a0f70ea36f26f700201961e62",
         "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
@@ -17,7 +17,7 @@
         "transactions": [],
         "withdrawals": [],
         "blockNumber": "0x1",
-        "blockHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
+        "blockHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
         "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
         "excessBlobGas": "0x0",
         "blobGasUsed": "0x0"
@@ -32,7 +32,7 @@
     "id": 67,
     "result": {
       "status": "VALID",
-      "latestValidHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
+      "latestValidHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
       "validationError": null
     }
   },

diff --git a/...s/src/test/resources/jsonrpc/engine/eip6110/test-cases/04_cancun_forkchoiceUpdatedV3.json b/...s/src/test/resources/jsonrpc/engine/eip6110/test-cases/04_cancun_forkchoiceUpdatedV3.json
@@ -4,9 +4,9 @@
     "method": "engine_forkchoiceUpdatedV3",
     "params": [
       {
-        "headBlockHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
-        "safeBlockHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
-        "finalizedBlockHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356"
+        "headBlockHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
+        "safeBlockHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
+        "finalizedBlockHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315"
       },
       null
     ],
@@ -18,7 +18,7 @@
     "result": {
       "payloadStatus": {
         "status": "VALID",
-        "latestValidHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
+        "latestValidHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
         "validationError": null
       },
       "payloadId": null

diff --git a/.../src/test/resources/jsonrpc/engine/eip6110/test-cases/05_eip6110_forkchoiceUpdatedV3.json b/.../src/test/resources/jsonrpc/engine/eip6110/test-cases/05_eip6110_forkchoiceUpdatedV3.json
@@ -4,8 +4,8 @@
     "method": "engine_forkchoiceUpdatedV3",
     "params": [
       {
-        "headBlockHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
-        "safeBlockHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
+        "headBlockHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
+        "safeBlockHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
         "finalizedBlockHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
       },
       {
@@ -24,10 +24,10 @@
     "result": {
       "payloadStatus": {
         "status": "VALID",
-        "latestValidHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
+        "latestValidHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
         "validationError": null
       },
-      "payloadId": "0x282643b9c2d2a4df"
+      "payloadId": "0x282643b909febddf"
     }
   },
   "statusCode": 200

diff --git a/...ests/src/test/resources/jsonrpc/engine/eip6110/test-cases/06_eip6110_getPayloadV6110.json b/...ests/src/test/resources/jsonrpc/engine/eip6110/test-cases/06_eip6110_getPayloadV6110.json
@@ -3,7 +3,7 @@
     "jsonrpc": "2.0",
     "method": "engine_getPayloadV6110",
     "params": [
-      "0x282643b9c2d2a4df"
+      "0x282643b909febddf"
     ],
     "id": 67
   },
@@ -12,7 +12,7 @@
     "id": 67,
     "result": {
       "executionPayload": {
-        "parentHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
+        "parentHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
         "feeRecipient": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
         "stateRoot": "0x9b8c4a9a86cb49252075c0db2f0e72fb1e49350a0f70ea36f26f700201961e62",
         "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
@@ -28,9 +28,9 @@
         "withdrawals": [],
         "depositReceipts": [],
         "blockNumber": "0x2",
-        "blockHash": "0xf6c3f1180ba58d6ea4c69c9328c7afb1fda41df06c368741c1f8310567879de7",
-        "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
-        "blobGasUsed": "0x0"
+        "blockHash": "0xc8255831601171a628ef17f6601d3d1d30ff9b382e77592ed1af32354f6dafbb",
+        "blobGasUsed": "0x0",
+        "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
       },
       "blockValue": "0x0",
       "blobsBundle": {

diff --git a/...ests/src/test/resources/jsonrpc/engine/eip6110/test-cases/09_eip6110_newPayloadV6110.json b/...ests/src/test/resources/jsonrpc/engine/eip6110/test-cases/09_eip6110_newPayloadV6110.json
@@ -4,7 +4,7 @@
     "method": "engine_newPayloadV6110",
     "params": [
       {
-        "parentHash": "0x45811fa27a100ce9035e5e086b9669275041a4ec0ebbd920be028fd7b0aa2356",
+        "parentHash": "0x1dd4f141551d53ce393845e2873754e43396101a8ebc0fd0eeb2e6798a591315",
         "feeRecipient": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
         "stateRoot": "0x14208ac0e218167936e220b72d5d5887a963cb858ea2f2d268518f014a3da3fa",
         "logsBloom": "0x10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000",
@@ -23,7 +23,7 @@
           {"amount":"0x773594000","index":"0x0","pubkey":"0x96a96086cff07df17668f35f7418ef8798079167e3f4f9b72ecde17b28226137cf454ab1dd20ef5d924786ab3483c2f9","signature":"0xb1acdb2c4d3df3f1b8d3bfd33421660df358d84d78d16c4603551935f4b67643373e7eb63dcb16ec359be0ec41fee33b03a16e80745f2374ff1d3c352508ac5d857c6476d3c3bcf7e6ca37427c9209f17be3af5264c0e2132b3dd1156c28b4e9","withdrawalCredentials":"0x003f5102dabe0a27b1746098d1dc17a5d3fbd478759fea9287e4e419b3c3cef2"}
         ],
         "blockNumber": "0x2",
-        "blockHash": "0xb3b483867217b83b1e4a2f95c84d2da30cbff12eb8636f2becbcc05f4507fa7a",
+        "blockHash": "0xddb65a684b9b8980b6231ee0e388566c10a9c4583bbddf16f8d68bbc0b8ed965",
         "receiptsRoot": "0x79ee3424eb720a3ad4b1c5a372bb8160580cbe4d893778660f34213c685627a9",
         "blobGasUsed": "0x0"
       },
@@ -37,7 +37,7 @@
     "id": 67,
     "result": {
       "status": "VALID",
-      "latestValidHash": "0xb3b483867217b83b1e4a2f95c84d2da30cbff12eb8636f2becbcc05f4507fa7a",
+      "latestValidHash": "0xddb65a684b9b8980b6231ee0e388566c10a9c4583bbddf16f8d68bbc0b8ed965",
       "validationError": null
     }
   },

diff --git a/.../src/test/resources/jsonrpc/engine/eip6110/test-cases/10_eip6110_forkchoiceUpdatedV3.json b/.../src/test/resources/jsonrpc/engine/eip6110/test-cases/10_eip6110_forkchoiceUpdatedV3.json
@@ -4,8 +4,8 @@
     "method": "engine_forkchoiceUpdatedV3",
     "params": [
       {
-        "headBlockHash": "0xb3b483867217b83b1e4a2f95c84d2da30cbff12eb8636f2becbcc05f4507fa7a",
-        "safeBlockHash": "0xb3b483867217b83b1e4a2f95c84d2da30cbff12eb8636f2becbcc05f4507fa7a",
+        "headBlockHash": "0xddb65a684b9b8980b6231ee0e388566c10a9c4583bbddf16f8d68bbc0b8ed965",
+        "safeBlockHash": "0xddb65a684b9b8980b6231ee0e388566c10a9c4583bbddf16f8d68bbc0b8ed965",
         "finalizedBlockHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
       },
       {
@@ -24,10 +24,10 @@
     "result": {
       "payloadStatus": {
         "status": "VALID",
-        "latestValidHash": "0xb3b483867217b83b1e4a2f95c84d2da30cbff12eb8636f2becbcc05f4507fa7a",
+        "latestValidHash": "0xddb65a684b9b8980b6231ee0e388566c10a9c4583bbddf16f8d68bbc0b8ed965",
         "validationError": null
       },
-      "payloadId": "0x282643daa04b7631"
+      "payloadId": "0x282643db882670cf"
     }
   },
   "statusCode" : 200

diff --git a/...ests/src/test/resources/jsonrpc/engine/eip6110/test-cases/11_eip6110_getPayloadV6110.json b/...ests/src/test/resources/jsonrpc/engine/eip6110/test-cases/11_eip6110_getPayloadV6110.json
@@ -3,7 +3,7 @@
     "jsonrpc": "2.0",
     "method": "engine_getPayloadV6110",
     "params": [
-      "0x282643daa04b7631"
+      "0x282643db882670cf"
     ],
     "id": 67
   },
@@ -12,7 +12,7 @@
     "id": 67,
     "result": {
       "executionPayload": {
-        "parentHash": "0xb3b483867217b83b1e4a2f95c84d2da30cbff12eb8636f2becbcc05f4507fa7a",
+        "parentHash": "0xddb65a684b9b8980b6231ee0e388566c10a9c4583bbddf16f8d68bbc0b8ed965",
         "feeRecipient": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
         "stateRoot": "0x14208ac0e218167936e220b72d5d5887a963cb858ea2f2d268518f014a3da3fa",
         "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
@@ -28,7 +28,7 @@
         "withdrawals": [],
         "depositReceipts": [],
         "blockNumber": "0x3",
-        "blockHash": "0xa28bf4db3363ce5b67848eb2ad52dbfead62ddb2287ae7eed36daa002528d1af",
+        "blockHash": "0xf1e7093b5d229885caab11a3acb95412af80f9077b742020a8014cf81c8c75f2",
         "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
         "blobGasUsed": "0x0"
       },

diff --git a/besu/src/main/java/org/hyperledger/besu/cli/BesuCommand.java b/besu/src/main/java/org/hyperledger/besu/cli/BesuCommand.java
@@ -359,6 +359,7 @@ public class BesuCommand implements DefaultCommandValues, Runnable {
       description = "Identification for this node in the Client ID",
       arity = "1")
   private final Optional<String> identityString = Optional.empty();
+
   // P2P Discovery Option Group
   @CommandLine.ArgGroup(validate = false, heading = "@|bold P2P Discovery Options|@%n")
   P2PDiscoveryOptionGroup p2PDiscoveryOptionGroup = new P2PDiscoveryOptionGroup();
@@ -1481,7 +1482,8 @@ private void configureNativeLibs() {
       logger.info("Using the Java implementation of the blake2bf algorithm");
     }
 
-    if (getActualGenesisConfigOptions().getCancunTime().isPresent()) {
+    if (getActualGenesisConfigOptions().getCancunTime().isPresent()
+        || getActualGenesisConfigOptions().getPragueTime().isPresent()) {
       if (kzgTrustedSetupFile != null) {
         KZGPointEvalPrecompiledContract.init(kzgTrustedSetupFile);
       } else {

diff --git a/config/src/main/java/org/hyperledger/besu/config/GenesisConfigOptions.java b/config/src/main/java/org/hyperledger/besu/config/GenesisConfigOptions.java
@@ -242,6 +242,13 @@ default boolean isConsensusMigration() {
    */
   OptionalLong getCancunTime();
 
+  /**
+   * Gets prague time.
+   *
+   * @return the prague time
+   */
+  OptionalLong getPragueTime();
+
   /**
    * Gets future eips time.
    *

diff --git a/config/src/main/java/org/hyperledger/besu/config/JsonGenesisConfigOptions.java b/config/src/main/java/org/hyperledger/besu/config/JsonGenesisConfigOptions.java
@@ -28,7 +28,6 @@
 import java.util.OptionalInt;
 import java.util.OptionalLong;
 import java.util.TreeMap;
-import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 import com.fasterxml.jackson.databind.node.ObjectNode;
@@ -292,6 +291,11 @@ public OptionalLong getCancunTime() {
     return getOptionalLong("cancuntime");
   }
 
+  @Override
+  public OptionalLong getPragueTime() {
+    return getOptionalLong("praguetime");
+  }
+
   @Override
   public OptionalLong getFutureEipsTime() {
     return getOptionalLong("futureeipstime");
@@ -304,10 +308,7 @@ public OptionalLong getExperimentalEipsTime() {
 
   @Override
   public Optional<Wei> getBaseFeePerGas() {
-    return Optional.ofNullable(configOverrides.get("baseFeePerGas"))
-        .map(Wei::fromHexString)
-        .map(Optional::of)
-        .orElse(Optional.empty());
+    return Optional.ofNullable(configOverrides.get("baseFeePerGas")).map(Wei::fromHexString);
   }
 
   @Override
@@ -448,6 +449,7 @@ public Map<String, Object> asMap() {
     getMergeNetSplitBlockNumber().ifPresent(l -> builder.put("mergeNetSplitBlock", l));
     getShanghaiTime().ifPresent(l -> builder.put("shanghaiTime", l));
     getCancunTime().ifPresent(l -> builder.put("cancunTime", l));
+    getPragueTime().ifPresent(l -> builder.put("pragueTime", l));
     getTerminalBlockNumber().ifPresent(l -> builder.put("terminalBlockNumber", l));
     getTerminalBlockHash().ifPresent(h -> builder.put("terminalBlockHash", h.toHexString()));
     getFutureEipsTime().ifPresent(l -> builder.put("futureEipsTime", l));
@@ -582,21 +584,25 @@ public List<Long> getForkBlockNumbers() {
         .map(OptionalLong::getAsLong)
         .distinct()
         .sorted()
-        .collect(Collectors.toList());
+        .toList();
   }
 
   @Override
   public List<Long> getForkBlockTimestamps() {
     Stream<OptionalLong> forkBlockTimestamps =
         Stream.of(
-            getShanghaiTime(), getCancunTime(), getFutureEipsTime(), getExperimentalEipsTime());
+            getShanghaiTime(),
+            getCancunTime(),
+            getPragueTime(),
+            getFutureEipsTime(),
+            getExperimentalEipsTime());
     // when adding forks add an entry to ${REPO_ROOT}/config/src/test/resources/all_forks.json
 
     return forkBlockTimestamps
         .filter(OptionalLong::isPresent)
         .map(OptionalLong::getAsLong)
         .distinct()
         .sorted()
-        .collect(Collectors.toList());
+        .toList();
   }
 }
diff --git a/config/src/main/java/org/hyperledger/besu/config/StubGenesisConfigOptions.java b/config/src/main/java/org/hyperledger/besu/config/StubGenesisConfigOptions.java
@@ -48,6 +48,7 @@ public class StubGenesisConfigOptions implements GenesisConfigOptions, Cloneable
   private OptionalLong mergeNetSplitBlockNumber = OptionalLong.empty();
   private OptionalLong shanghaiTime = OptionalLong.empty();
   private OptionalLong cancunTime = OptionalLong.empty();
+  private OptionalLong pragueTime = OptionalLong.empty();
   private OptionalLong futureEipsTime = OptionalLong.empty();
   private OptionalLong experimentalEipsTime = OptionalLong.empty();
   private OptionalLong terminalBlockNumber = OptionalLong.empty();
@@ -232,6 +233,11 @@ public OptionalLong getCancunTime() {
     return cancunTime;
   }
 
+  @Override
+  public OptionalLong getPragueTime() {
+    return pragueTime;
+  }
+
   @Override
   public OptionalLong getFutureEipsTime() {
     return futureEipsTime;
@@ -364,6 +370,7 @@ public Map<String, Object> asMap() {
     getMergeNetSplitBlockNumber().ifPresent(l -> builder.put("mergeNetSplitBlock", l));
     getShanghaiTime().ifPresent(l -> builder.put("shanghaiTime", l));
     getCancunTime().ifPresent(l -> builder.put("cancunTime", l));
+    getPragueTime().ifPresent(l -> builder.put("pragueTime", l));
     getFutureEipsTime().ifPresent(l -> builder.put("futureEipsTime", l));
     getExperimentalEipsTime().ifPresent(l -> builder.put("experimentalEipsTime", l));
     getTerminalBlockNumber().ifPresent(l -> builder.put("terminalBlockNumber", l));
@@ -608,6 +615,17 @@ public StubGenesisConfigOptions cancunTime(final long timestamp) {
     return this;
   }
 
+  /**
+   * Prague time.
+   *
+   * @param timestamp the timestamp
+   * @return the stub genesis config options
+   */
+  public StubGenesisConfigOptions pragueTime(final long timestamp) {
+    pragueTime = OptionalLong.of(timestamp);
+    return this;
+  }
+
   /**
    * Future EIPs Time block.
    *