diff --git a/tools/t8n/t8n_test.nim b/tools/t8n/t8n_test.nim
index 2020869e1..a6b1e063b 100644
--- a/tools/t8n/t8n_test.nim
+++ b/tools/t8n/t8n_test.nim
@@ -295,6 +295,69 @@ const
       output: T8nOutput(alloc: true, result: true),
       expOut: "exp.json",
     ),
+    TestSpec(
+      name  : "0-touch reward on pre EIP150 networks -1(txs.rlp)",
+      base  : "testdata/00-501",
+      input : t8nInput(
+        "alloc.json", "txs.rlp", "env.json", "EIP150", "-1"
+      ),
+      output: T8nOutput(alloc: true, result: true),
+      expOut: "exp.json",
+    ),
+    TestSpec(
+      name  : "0-touch reward on pre EIP150 networks(txs.rlp)",
+      base  : "testdata/00-502",
+      input : t8nInput(
+        "alloc.json", "txs.rlp", "env.json", "EIP150", ""
+      ),
+      output: T8nOutput(alloc: true, result: true),
+      expOut: "exp.json",
+    ),
+    TestSpec(
+      name  : "0-touch reward on pre EIP150 networks(txs.json)",
+      base  : "testdata/00-502",
+      input : t8nInput(
+        "alloc.json", "txs.json", "env.json", "EIP150", ""
+      ),
+      output: T8nOutput(alloc: true, result: true),
+      expOut: "exp.json",
+    ),
+    TestSpec(
+      name  : "calculate basefee from parentBaseFee -1",
+      base  : "testdata/00-503",
+      input : t8nInput(
+        "alloc.json", "txs.json", "env.json", "London", "-1"
+      ),
+      output: T8nOutput(alloc: true, result: true),
+      expOut: "exp.json",
+    ),
+    TestSpec(
+      name  : "calculate basefee from parentBaseFee",
+      base  : "testdata/00-504",
+      input : t8nInput(
+        "alloc.json", "txs.json", "env.json", "London", ""
+      ),
+      output: T8nOutput(alloc: true, result: true),
+      expOut: "exp.json",
+    ),
+    TestSpec(
+      name  : "BLOCKHASH opcode -1",
+      base  : "testdata/00-505",
+      input : t8nInput(
+        "alloc.json", "txs.json", "env.json", "London", "-1"
+      ),
+      output: T8nOutput(alloc: true, result: true),
+      expOut: "exp.json",
+    ),
+    TestSpec(
+      name  : "BLOCKHASH opcode",
+      base  : "testdata/00-506",
+      input : t8nInput(
+        "alloc.json", "txs.json", "env.json", "London", ""
+      ),
+      output: T8nOutput(alloc: true, result: true),
+      expOut: "exp.json",
+    )
   ]
 
 proc main() =
diff --git a/tools/t8n/testdata/00-501/alloc.json b/tools/t8n/testdata/00-501/alloc.json
new file mode 100644
index 000000000..3168e128d
--- /dev/null
+++ b/tools/t8n/testdata/00-501/alloc.json
@@ -0,0 +1,16 @@
+{
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
+        "balance" : "0x3b9aca00",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0xd0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0" : {
+        "balance" : "0x00",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-501/env.json b/tools/t8n/testdata/00-501/env.json
new file mode 100644
index 000000000..7f8298cf2
--- /dev/null
+++ b/tools/t8n/testdata/00-501/env.json
@@ -0,0 +1,8 @@
+{
+    "currentCoinbase" : "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
+    "currentDifficulty" : "0x020000",
+    "currentNumber" : "0x00",
+    "currentTimestamp" : "0x00",
+    "currentGasLimit" : "0x05500000",
+    "previousHash" : "0x0000000000000000000000000000000000000000000000000000000000000000"
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-501/exp.json b/tools/t8n/testdata/00-501/exp.json
new file mode 100644
index 000000000..2e04faf86
--- /dev/null
+++ b/tools/t8n/testdata/00-501/exp.json
@@ -0,0 +1,26 @@
+{
+  "alloc": {
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0x3b9aca00"
+    },
+    "0xd0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0": {
+      "balance": "0x0"
+    }
+  },
+  "result": {
+    "stateRoot": "0x1751725d1aad5298768fbcf64069b2c1b85aeaffcc561146067d6beedd08052a",
+    "txRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+    "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "receipts": [],
+    "rejected": [
+      {
+        "index": 0,
+        "error": "insufficient funds for gas * price + value: address 0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B have 1000000000 want 115792089237316195423570985008687907853269984665640564039457584007914129628001"
+      }
+    ],
+    "currentDifficulty": "0x20000",
+    "gasUsed": "0x0"
+  }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-501/txs.rlp b/tools/t8n/testdata/00-501/txs.rlp
new file mode 100644
index 000000000..1c318eb60
--- /dev/null
+++ b/tools/t8n/testdata/00-501/txs.rlp
@@ -0,0 +1 @@
+"0xf880f87e809f031eea408f8e1799cb883da2927b1336521d73c2c14accfebb70d5c5af006c82520894d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d001801ca039b081ab7094dff1b3ac79cbf8e381adc9f7a4e16290d7abc42dd006e5e062c5a033af00e26e5eb4431dcad601b2c8bf12d51eef2bd037d14681f22692ffab1ccd"
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-502/alloc.json b/tools/t8n/testdata/00-502/alloc.json
new file mode 100644
index 000000000..3168e128d
--- /dev/null
+++ b/tools/t8n/testdata/00-502/alloc.json
@@ -0,0 +1,16 @@
+{
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
+        "balance" : "0x3b9aca00",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0xd0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0" : {
+        "balance" : "0x00",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-502/env.json b/tools/t8n/testdata/00-502/env.json
new file mode 100644
index 000000000..f8a4d7fd1
--- /dev/null
+++ b/tools/t8n/testdata/00-502/env.json
@@ -0,0 +1,13 @@
+{
+    "currentCoinbase" : "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
+    "currentNumber" : "0x01",
+    "currentTimestamp" : "0x03e8",
+    "currentGasLimit" : "0x05500000",
+    "previousHash" : "0xa96bbebc0b60fd343eead12143896f9331f436013c0f28cfd13698f0348f4b03",
+    "parentTimestamp" : "0x00",
+    "parentDifficulty" : "0x020000",
+    "parentUncleHash" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "blockHashes" : {
+        "0" : "0xa96bbebc0b60fd343eead12143896f9331f436013c0f28cfd13698f0348f4b03"
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-502/exp.json b/tools/t8n/testdata/00-502/exp.json
new file mode 100644
index 000000000..6455625f8
--- /dev/null
+++ b/tools/t8n/testdata/00-502/exp.json
@@ -0,0 +1,29 @@
+{
+  "alloc": {
+    "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba": {
+      "balance": "0x0"
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0x3b9aca00"
+    },
+    "0xd0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0": {
+      "balance": "0x0"
+    }
+  },
+  "result": {
+    "stateRoot": "0x7e18cda82e88b51f339192016b7f3e803051e1e115260efb25f8602b894226ec",
+    "txRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+    "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "receipts": [],
+    "rejected": [
+      {
+        "index": 0,
+        "error": "insufficient funds for gas * price + value: address 0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B have 1000000000 want 115792089237316195423570985008687907853269984665640564039457584007914129628001"
+      }
+    ],
+    "currentDifficulty": "0x20000",
+    "gasUsed": "0x0"
+  }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-502/txs.json b/tools/t8n/testdata/00-502/txs.json
new file mode 100644
index 000000000..8714e68cf
--- /dev/null
+++ b/tools/t8n/testdata/00-502/txs.json
@@ -0,0 +1,13 @@
+[
+{
+    "data" : "0x",
+    "gasLimit" : "0x5208",
+    "gasPrice" : "0x31eea408f8e1799cb883da2927b1336521d73c2c14accfebb70d5c5af006c",
+    "nonce" : "0x0",
+    "to" : "0xd0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0",
+    "value" : "0x1",
+    "v" : "0x1c",
+    "r" : "0x39b081ab7094dff1b3ac79cbf8e381adc9f7a4e16290d7abc42dd006e5e062c5",
+    "s" : "0x33af00e26e5eb4431dcad601b2c8bf12d51eef2bd037d14681f22692ffab1ccd"
+}
+]
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-502/txs.rlp b/tools/t8n/testdata/00-502/txs.rlp
new file mode 100644
index 000000000..1c318eb60
--- /dev/null
+++ b/tools/t8n/testdata/00-502/txs.rlp
@@ -0,0 +1 @@
+"0xf880f87e809f031eea408f8e1799cb883da2927b1336521d73c2c14accfebb70d5c5af006c82520894d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d001801ca039b081ab7094dff1b3ac79cbf8e381adc9f7a4e16290d7abc42dd006e5e062c5a033af00e26e5eb4431dcad601b2c8bf12d51eef2bd037d14681f22692ffab1ccd"
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-503/alloc.json b/tools/t8n/testdata/00-503/alloc.json
new file mode 100644
index 000000000..5f62647a5
--- /dev/null
+++ b/tools/t8n/testdata/00-503/alloc.json
@@ -0,0 +1,23 @@
+{
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87" : {
+        "balance" : "0x0de0b6b3a7640000",
+        "code" : "0x600160010160005500",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba" : {
+        "balance" : "0x00",
+        "code" : "0x",
+        "nonce" : "0x01",
+        "storage" : {
+        }
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
+        "balance" : "0x0de0b6b3a7640000",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-503/env.json b/tools/t8n/testdata/00-503/env.json
new file mode 100644
index 000000000..b7d1ea217
--- /dev/null
+++ b/tools/t8n/testdata/00-503/env.json
@@ -0,0 +1,11 @@
+{
+    "currentCoinbase" : "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
+    "currentDifficulty" : "0x020000",
+    "currentNumber" : "0x00",
+    "currentTimestamp" : "0x00",
+    "currentGasLimit" : "0xff112233445566",
+    "previousHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "parentBaseFee" : "0x0b",
+    "parentGasUsed" : "0x00",
+    "parentGasLimit" : "0xff112233445566"
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-503/exp.json b/tools/t8n/testdata/00-503/exp.json
new file mode 100644
index 000000000..4bf43f21c
--- /dev/null
+++ b/tools/t8n/testdata/00-503/exp.json
@@ -0,0 +1,43 @@
+{
+  "alloc": {
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87": {
+      "code": "0x600160010160005500",
+      "storage": {
+        "0x0000000000000000000000000000000000000000000000000000000000000000": "0x0000000000000000000000000000000000000000000000000000000000000002"
+      },
+      "balance": "0xde0b6b3a76586a0"
+    },
+    "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba": {
+      "balance": "0x0",
+      "nonce": "0x1"
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0xde0b6b3a75be550",
+      "nonce": "0x1"
+    }
+  },
+  "result": {
+    "stateRoot": "0xe8010ce590f401c9d61fef8ab05bea9bcec24281b795e5868809bc4e515aa530",
+    "txRoot": "0xf91abed7e00f88cadedc98279f8fe12e181da598fdf28c61aa18908e2e32d531",
+    "receiptsRoot": "0x06f890d54ec65d8650b6c73eefd1fbc39f78b5b25f4e1ec10885c9f29f84ee98",
+    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "receipts": [
+      {
+        "root": "0x",
+        "status": "0x1",
+        "cumulativeGasUsed": "0xa868",
+        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        "logs": null,
+        "transactionHash": "0xeda4d6763740fbccc99cc8873ff09b8504d192e83f73bd16ccf5feb053a4e3cd",
+        "contractAddress": "0x0000000000000000000000000000000000000000",
+        "gasUsed": "0xa868",
+        "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "transactionIndex": "0x0"
+      }
+    ],
+    "currentDifficulty": "0x20000",
+    "gasUsed": "0xa868",
+    "currentBaseFee": "0xa"
+  }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-503/txs.json b/tools/t8n/testdata/00-503/txs.json
new file mode 100644
index 000000000..bbe73c39e
--- /dev/null
+++ b/tools/t8n/testdata/00-503/txs.json
@@ -0,0 +1,13 @@
+[
+{
+    "input" : "0x",
+    "gas" : "0x61a80",
+    "gasPrice" : "0xa",
+    "nonce" : "0x0",
+    "to" : "0x095e7baea6a6c7c4c2dfeb977efac326af552d87",
+    "value" : "0x186a0",
+    "v" : "0x1b",
+    "r" : "0xffb600e63115a7362e7811894a91d8ba4330e526f22121c994c4692035dfdfd5",
+    "s" : "0x6198379fcac8de3dbfac48b165df4bf88e2088f294b61efb9a65fe2281c76e16"
+}
+]
diff --git a/tools/t8n/testdata/00-504/alloc.json b/tools/t8n/testdata/00-504/alloc.json
new file mode 100644
index 000000000..5f62647a5
--- /dev/null
+++ b/tools/t8n/testdata/00-504/alloc.json
@@ -0,0 +1,23 @@
+{
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87" : {
+        "balance" : "0x0de0b6b3a7640000",
+        "code" : "0x600160010160005500",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba" : {
+        "balance" : "0x00",
+        "code" : "0x",
+        "nonce" : "0x01",
+        "storage" : {
+        }
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
+        "balance" : "0x0de0b6b3a7640000",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-504/env.json b/tools/t8n/testdata/00-504/env.json
new file mode 100644
index 000000000..2c7874967
--- /dev/null
+++ b/tools/t8n/testdata/00-504/env.json
@@ -0,0 +1,16 @@
+{
+    "currentCoinbase" : "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
+    "currentNumber" : "0x01",
+    "currentTimestamp" : "0x03e8",
+    "currentGasLimit" : "0xff112233445566",
+    "previousHash" : "0x7f46f93fbcd604ebdb14d90b1b4337f471a44117474b441ce139c34fca1963f0",
+    "parentTimestamp" : "0x00",
+    "parentDifficulty" : "0x020000",
+    "parentUncleHash" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "parentBaseFee" : "0x0b",
+    "parentGasUsed" : "0x00",
+    "parentGasLimit" : "0xff112233445566",
+    "blockHashes" : {
+        "0" : "0x7f46f93fbcd604ebdb14d90b1b4337f471a44117474b441ce139c34fca1963f0"
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-504/exp.json b/tools/t8n/testdata/00-504/exp.json
new file mode 100644
index 000000000..dd3d232b4
--- /dev/null
+++ b/tools/t8n/testdata/00-504/exp.json
@@ -0,0 +1,43 @@
+{
+  "alloc": {
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87": {
+      "code": "0x600160010160005500",
+      "storage": {
+        "0x0000000000000000000000000000000000000000000000000000000000000000": "0x0000000000000000000000000000000000000000000000000000000000000002"
+      },
+      "balance": "0xde0b6b3a76586a0"
+    },
+    "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba": {
+      "balance": "0x0",
+      "nonce": "0x1"
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0xde0b6b3a75be550",
+      "nonce": "0x1"
+    }
+  },
+  "result": {
+    "stateRoot": "0xe8010ce590f401c9d61fef8ab05bea9bcec24281b795e5868809bc4e515aa530",
+    "txRoot": "0xf91abed7e00f88cadedc98279f8fe12e181da598fdf28c61aa18908e2e32d531",
+    "receiptsRoot": "0x06f890d54ec65d8650b6c73eefd1fbc39f78b5b25f4e1ec10885c9f29f84ee98",
+    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "receipts": [
+      {
+        "root": "0x",
+        "status": "0x1",
+        "cumulativeGasUsed": "0xa868",
+        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        "logs": null,
+        "transactionHash": "0xeda4d6763740fbccc99cc8873ff09b8504d192e83f73bd16ccf5feb053a4e3cd",
+        "contractAddress": "0x0000000000000000000000000000000000000000",
+        "gasUsed": "0xa868",
+        "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "transactionIndex": "0x0"
+      }
+    ],
+    "currentDifficulty": "0x20000",
+    "gasUsed": "0xa868",
+    "currentBaseFee": "0xa"
+  }
+}
diff --git a/tools/t8n/testdata/00-504/txs.json b/tools/t8n/testdata/00-504/txs.json
new file mode 100644
index 000000000..bbe73c39e
--- /dev/null
+++ b/tools/t8n/testdata/00-504/txs.json
@@ -0,0 +1,13 @@
+[
+{
+    "input" : "0x",
+    "gas" : "0x61a80",
+    "gasPrice" : "0xa",
+    "nonce" : "0x0",
+    "to" : "0x095e7baea6a6c7c4c2dfeb977efac326af552d87",
+    "value" : "0x186a0",
+    "v" : "0x1b",
+    "r" : "0xffb600e63115a7362e7811894a91d8ba4330e526f22121c994c4692035dfdfd5",
+    "s" : "0x6198379fcac8de3dbfac48b165df4bf88e2088f294b61efb9a65fe2281c76e16"
+}
+]
diff --git a/tools/t8n/testdata/00-505/alloc.json b/tools/t8n/testdata/00-505/alloc.json
new file mode 100644
index 000000000..303620036
--- /dev/null
+++ b/tools/t8n/testdata/00-505/alloc.json
@@ -0,0 +1,23 @@
+{
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87" : {
+        "balance" : "0x00",
+        "code" : "0x417fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff557ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe40437f000000000000000000000000945304eb96065b2a98b57a48a06ae28d285a71b57ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe163119185560005155",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0x945304eb96065b2a98b57a48a06ae28d285a71b5" : {
+        "balance" : "0x2e",
+        "code" : "0x6000355415600957005b60203560003555",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
+        "balance" : "0x0de0b6b3a7640000",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-505/env.json b/tools/t8n/testdata/00-505/env.json
new file mode 100644
index 000000000..8382660d8
--- /dev/null
+++ b/tools/t8n/testdata/00-505/env.json
@@ -0,0 +1,11 @@
+{
+    "currentCoinbase" : "0x945304eb96065b2a98b57a48a06ae28d285a71b5",
+    "currentDifficulty" : "0x020000",
+    "currentNumber" : "0x00",
+    "currentTimestamp" : "0x00",
+    "currentGasLimit" : "0x7fffffffffffffff",
+    "previousHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "parentBaseFee" : "0x0b",
+    "parentGasUsed" : "0x00",
+    "parentGasLimit" : "0x7fffffffffffffff"
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-505/exp.json b/tools/t8n/testdata/00-505/exp.json
new file mode 100644
index 000000000..da7475a28
--- /dev/null
+++ b/tools/t8n/testdata/00-505/exp.json
@@ -0,0 +1,40 @@
+{
+  "alloc": {
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87": {
+      "code": "0x417fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff557ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe40437f000000000000000000000000945304eb96065b2a98b57a48a06ae28d285a71b57ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe163119185560005155",
+      "balance": "0x0"
+    },
+    "0x945304eb96065b2a98b57a48a06ae28d285a71b5": {
+      "code": "0x6000355415600957005b60203560003555",
+      "balance": "0x2e"
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0xde0b6b0b6053afa",
+      "nonce": "0x1"
+    }
+  },
+  "result": {
+    "stateRoot": "0xfdca957f911a15be83d658415618aedf6471590a1ebcfdec97d2be996768cc61",
+    "txRoot": "0xe3c99ba4553c80c839a1ee04418fb1ee5c8cd1210eb2dd46a2627ba4b267a9ed",
+    "receiptsRoot": "0x6573f72f5b652298a2cadc25e2db02a45891f50abd696016a08143a5b2c2899e",
+    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "receipts": [
+      {
+        "root": "0x",
+        "status": "0x0",
+        "cumulativeGasUsed": "0x4b5646e7",
+        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        "logs": null,
+        "transactionHash": "0xe295b944cf2e698632f0d173316a761f5affc42187bf6d30b7538690fd3d19c4",
+        "contractAddress": "0x0000000000000000000000000000000000000000",
+        "gasUsed": "0x4b5646e7",
+        "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "transactionIndex": "0x0"
+      }
+    ],
+    "currentDifficulty": "0x20000",
+    "gasUsed": "0x4b5646e7",
+    "currentBaseFee": "0xa"
+  }
+}
diff --git a/tools/t8n/testdata/00-505/txs.json b/tools/t8n/testdata/00-505/txs.json
new file mode 100644
index 000000000..29b92ceea
--- /dev/null
+++ b/tools/t8n/testdata/00-505/txs.json
@@ -0,0 +1,13 @@
+[
+{
+    "input" : "0x417fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff557ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe40437f000000000000000000000000945304eb96065b2a98b57a48a06ae28d285a71b57ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe1631191855",
+    "gas" : "0x4b5646e7",
+    "gasPrice" : "0xa",
+    "nonce" : "0x0",
+    "to" : "0x095e7baea6a6c7c4c2dfeb977efac326af552d87",
+    "value" : "0x31488828",
+    "v" : "0x1b",
+    "r" : "0xb25190ddc89486ed3488ade245f5781b0e6d86ff7c9fad8cdf9b84b2fa497b73",
+    "s" : "0x3d7ec991f6072d5e7ca32e2151883b5d71dd6a67616a6d77db90cb35b10617d9"
+}
+]
diff --git a/tools/t8n/testdata/00-506/alloc.json b/tools/t8n/testdata/00-506/alloc.json
new file mode 100644
index 000000000..303620036
--- /dev/null
+++ b/tools/t8n/testdata/00-506/alloc.json
@@ -0,0 +1,23 @@
+{
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87" : {
+        "balance" : "0x00",
+        "code" : "0x417fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff557ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe40437f000000000000000000000000945304eb96065b2a98b57a48a06ae28d285a71b57ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe163119185560005155",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0x945304eb96065b2a98b57a48a06ae28d285a71b5" : {
+        "balance" : "0x2e",
+        "code" : "0x6000355415600957005b60203560003555",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
+        "balance" : "0x0de0b6b3a7640000",
+        "code" : "0x",
+        "nonce" : "0x00",
+        "storage" : {
+        }
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-506/env.json b/tools/t8n/testdata/00-506/env.json
new file mode 100644
index 000000000..83eac7d85
--- /dev/null
+++ b/tools/t8n/testdata/00-506/env.json
@@ -0,0 +1,16 @@
+{
+    "currentCoinbase" : "0x945304eb96065b2a98b57a48a06ae28d285a71b5",
+    "currentNumber" : "0x01",
+    "currentTimestamp" : "0x03e8",
+    "currentGasLimit" : "0x7fffffffffffffff",
+    "previousHash" : "0xa424a5665adf6d8d407b9828d00b3cf8a40506b5a8fc1e9517bf8333d6cd4adc",
+    "parentTimestamp" : "0x00",
+    "parentDifficulty" : "0x020000",
+    "parentUncleHash" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "parentBaseFee" : "0x0b",
+    "parentGasUsed" : "0x00",
+    "parentGasLimit" : "0x7fffffffffffffff",
+    "blockHashes" : {
+        "0" : "0xa424a5665adf6d8d407b9828d00b3cf8a40506b5a8fc1e9517bf8333d6cd4adc"
+    }
+}
\ No newline at end of file
diff --git a/tools/t8n/testdata/00-506/exp.json b/tools/t8n/testdata/00-506/exp.json
new file mode 100644
index 000000000..da7475a28
--- /dev/null
+++ b/tools/t8n/testdata/00-506/exp.json
@@ -0,0 +1,40 @@
+{
+  "alloc": {
+    "0x095e7baea6a6c7c4c2dfeb977efac326af552d87": {
+      "code": "0x417fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff557ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe40437f000000000000000000000000945304eb96065b2a98b57a48a06ae28d285a71b57ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe163119185560005155",
+      "balance": "0x0"
+    },
+    "0x945304eb96065b2a98b57a48a06ae28d285a71b5": {
+      "code": "0x6000355415600957005b60203560003555",
+      "balance": "0x2e"
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0xde0b6b0b6053afa",
+      "nonce": "0x1"
+    }
+  },
+  "result": {
+    "stateRoot": "0xfdca957f911a15be83d658415618aedf6471590a1ebcfdec97d2be996768cc61",
+    "txRoot": "0xe3c99ba4553c80c839a1ee04418fb1ee5c8cd1210eb2dd46a2627ba4b267a9ed",
+    "receiptsRoot": "0x6573f72f5b652298a2cadc25e2db02a45891f50abd696016a08143a5b2c2899e",
+    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "receipts": [
+      {
+        "root": "0x",
+        "status": "0x0",
+        "cumulativeGasUsed": "0x4b5646e7",
+        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        "logs": null,
+        "transactionHash": "0xe295b944cf2e698632f0d173316a761f5affc42187bf6d30b7538690fd3d19c4",
+        "contractAddress": "0x0000000000000000000000000000000000000000",
+        "gasUsed": "0x4b5646e7",
+        "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "transactionIndex": "0x0"
+      }
+    ],
+    "currentDifficulty": "0x20000",
+    "gasUsed": "0x4b5646e7",
+    "currentBaseFee": "0xa"
+  }
+}
diff --git a/tools/t8n/testdata/00-506/txs.json b/tools/t8n/testdata/00-506/txs.json
new file mode 100644
index 000000000..29b92ceea
--- /dev/null
+++ b/tools/t8n/testdata/00-506/txs.json
@@ -0,0 +1,13 @@
+[
+{
+    "input" : "0x417fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff557ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe40437f000000000000000000000000945304eb96065b2a98b57a48a06ae28d285a71b57ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe1631191855",
+    "gas" : "0x4b5646e7",
+    "gasPrice" : "0xa",
+    "nonce" : "0x0",
+    "to" : "0x095e7baea6a6c7c4c2dfeb977efac326af552d87",
+    "value" : "0x31488828",
+    "v" : "0x1b",
+    "r" : "0xb25190ddc89486ed3488ade245f5781b0e6d86ff7c9fad8cdf9b84b2fa497b73",
+    "s" : "0x3d7ec991f6072d5e7ca32e2151883b5d71dd6a67616a6d77db90cb35b10617d9"
+}
+]
diff --git a/tools/t8n/testdata/13/exp2.json b/tools/t8n/testdata/13/exp2.json
index ba8c9f865..cbad6552c 100644
--- a/tools/t8n/testdata/13/exp2.json
+++ b/tools/t8n/testdata/13/exp2.json
@@ -34,6 +34,7 @@
       }
     ],
     "currentDifficulty": "0x20000",
-    "gasUsed": "0x109a0"
+    "gasUsed": "0x109a0",
+    "currentBaseFee": "0x36b"
   }
 }
diff --git a/tools/t8n/testdata/14/exp.json b/tools/t8n/testdata/14/exp.json
index 9bf5635f5..26d49173c 100644
--- a/tools/t8n/testdata/14/exp.json
+++ b/tools/t8n/testdata/14/exp.json
@@ -7,6 +7,7 @@
     "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
     "currentDifficulty": "0x2000020000000",
     "receipts": [],
-    "gasUsed": "0x0"
+    "gasUsed": "0x0",
+    "currentBaseFee": "0x500"
   }
 }
diff --git a/tools/t8n/testdata/14/exp2.json b/tools/t8n/testdata/14/exp2.json
index 9c9025381..cd75b47d5 100644
--- a/tools/t8n/testdata/14/exp2.json
+++ b/tools/t8n/testdata/14/exp2.json
@@ -7,6 +7,7 @@
     "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
     "receipts": [],
     "currentDifficulty": "0x1ff8020000000",
-    "gasUsed": "0x0"
+    "gasUsed": "0x0",
+    "currentBaseFee": "0x500"
   }
 }
diff --git a/tools/t8n/testdata/14/exp_berlin.json b/tools/t8n/testdata/14/exp_berlin.json
index c2bf95311..5c00ef130 100644
--- a/tools/t8n/testdata/14/exp_berlin.json
+++ b/tools/t8n/testdata/14/exp_berlin.json
@@ -7,6 +7,7 @@
     "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
     "receipts": [],
     "currentDifficulty": "0x1ff9000000000",
-    "gasUsed": "0x0"
+    "gasUsed": "0x0",
+    "currentBaseFee": "0x500"
   }
 }
diff --git a/tools/t8n/testdata/19/exp_arrowglacier.json b/tools/t8n/testdata/19/exp_arrowglacier.json
index 9cf56ffaf..dd49f7d02 100644
--- a/tools/t8n/testdata/19/exp_arrowglacier.json
+++ b/tools/t8n/testdata/19/exp_arrowglacier.json
@@ -7,6 +7,7 @@
     "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
     "currentDifficulty": "0x2000000200000",
     "receipts": [],
-    "gasUsed": "0x0"
+    "gasUsed": "0x0",
+    "currentBaseFee": "0x500"
   }
 }
diff --git a/tools/t8n/testdata/19/exp_grayglacier.json b/tools/t8n/testdata/19/exp_grayglacier.json
index 95a3cb168..86fd8e6c1 100644
--- a/tools/t8n/testdata/19/exp_grayglacier.json
+++ b/tools/t8n/testdata/19/exp_grayglacier.json
@@ -7,6 +7,7 @@
       "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
       "receipts": [],
       "currentDifficulty": "0x2000000004000",
-      "gasUsed": "0x0"
+      "gasUsed": "0x0",
+      "currentBaseFee": "0x500"
     }
 }
\ No newline at end of file
diff --git a/tools/t8n/testdata/19/exp_london.json b/tools/t8n/testdata/19/exp_london.json
index a06bc8ca6..9e9a17da9 100644
--- a/tools/t8n/testdata/19/exp_london.json
+++ b/tools/t8n/testdata/19/exp_london.json
@@ -7,6 +7,7 @@
     "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
     "currentDifficulty": "0x2000080000000",
     "receipts": [],
-    "gasUsed": "0x0"
+    "gasUsed": "0x0",
+    "currentBaseFee": "0x500"
   }
 }
diff --git a/tools/t8n/testdata/24/exp.json b/tools/t8n/testdata/24/exp.json
index 05d8c7a03..d8cec59d6 100644
--- a/tools/t8n/testdata/24/exp.json
+++ b/tools/t8n/testdata/24/exp.json
@@ -48,6 +48,7 @@
       }
     ],
     "currentDifficulty": null,
-    "gasUsed": "0x10306"
+    "gasUsed": "0x10306",
+    "currentBaseFee": "0x500"
   }
 }
diff --git a/tools/t8n/testdata/25/alloc.json b/tools/t8n/testdata/25/alloc.json
new file mode 100644
index 000000000..d66366718
--- /dev/null
+++ b/tools/t8n/testdata/25/alloc.json
@@ -0,0 +1,8 @@
+{
+  "a94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+    "balance": "0x5ffd4878be161d74",
+    "code": "0x",
+    "nonce": "0xac",
+    "storage": {}
+  }
+}
diff --git a/tools/t8n/testdata/25/env.json b/tools/t8n/testdata/25/env.json
new file mode 100644
index 000000000..bb2c9e0d7
--- /dev/null
+++ b/tools/t8n/testdata/25/env.json
@@ -0,0 +1,11 @@
+{
+  "currentCoinbase": "0xc94f5374fce5edbc8e2a8697c15331677e6ebf0b",
+  "currentDifficulty": null,
+  "currentRandom": "0xdeadc0de",
+  "currentGasLimit": "0x750a163df65e8a",
+  "parentBaseFee": "0x500",
+  "parentGasUsed": "0x0",
+  "parentGasLimit": "0x750a163df65e8a",
+  "currentNumber": "1",
+  "currentTimestamp": "1000"
+}
diff --git a/tools/t8n/testdata/25/exp.json b/tools/t8n/testdata/25/exp.json
new file mode 100644
index 000000000..a9c310a1e
--- /dev/null
+++ b/tools/t8n/testdata/25/exp.json
@@ -0,0 +1,38 @@
+{
+  "alloc": {
+    "0x8a8eafb1cf62bfbeb1741769dae1a9dd47996192": {
+      "balance": "0x1"
+    },
+    "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0x5ffd4878bc29ed73",
+      "nonce": "0xad"
+    },
+    "0xc94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
+      "balance": "0x854d00"
+    }
+  },
+  "result": {
+    "stateRoot": "0x5139609e39f4d158a7d1ad1800908eb0349cea9b500a8273a6cf0a7e4392639b",
+    "txRoot": "0x572690baf4898c2972446e56ecf0aa2a027c08a863927d2dce34472f0c5496fe",
+    "receiptsRoot": "0x056b23fbba480696b65fe5a59b8f2148a1299103c4f57df839233af2cf4ca2d2",
+    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "receipts": [
+      {
+        "root": "0x",
+        "status": "0x1",
+        "cumulativeGasUsed": "0x5208",
+        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        "logs": null,
+        "transactionHash": "0x92ea4a28224d033afb20e0cc2b290d4c7c2d61f6a4800a680e4e19ac962ee941",
+        "contractAddress": "0x0000000000000000000000000000000000000000",
+        "gasUsed": "0x5208",
+        "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "transactionIndex": "0x0"
+      }
+    ],
+    "currentDifficulty": null,
+    "gasUsed": "0x5208",
+    "currentBaseFee": "0x460"
+  }
+}
diff --git a/tools/t8n/testdata/25/txs.json b/tools/t8n/testdata/25/txs.json
new file mode 100644
index 000000000..acb4035fd
--- /dev/null
+++ b/tools/t8n/testdata/25/txs.json
@@ -0,0 +1,15 @@
+[
+  {
+    "gas": "0x186a0",
+    "gasPrice": "0x600",
+    "hash": "0x0557bacce3375c98d806609b8d5043072f0b6a8bae45ae5a67a00d3a1a18d673",
+    "input": "0x",
+    "nonce": "0xac",
+    "to": "0x8a8eafb1cf62bfbeb1741769dae1a9dd47996192",
+    "value": "0x1",
+    "v" : "0x0",
+    "r" : "0x0",
+    "s" : "0x0",
+    "secretKey" : "0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8"
+  }
+]