From d50803ec3c5d411ff3b308f6296b66b7fdfa66d8 Mon Sep 17 00:00:00 2001
From: acolytec3 <17355484+acolytec3@users.noreply.github.com>
Date: Mon, 5 Aug 2024 12:08:44 -0400
Subject: [PATCH] check if genesis difficulty is greater than ttd (#3556)

---
 packages/common/src/utils.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/common/src/utils.ts b/packages/common/src/utils.ts
index 55796081eb..090591a69a 100644
--- a/packages/common/src/utils.ts
+++ b/packages/common/src/utils.ts
@@ -85,7 +85,8 @@ function parseGethParams(json: any) {
   // so the Merge/Paris hardfork block must be 0
   if (
     config.terminalTotalDifficulty !== undefined &&
-    (config.terminalTotalDifficulty > 0 || config.terminalTotalDifficultyPassed === false)
+    (BigInt(difficulty) < BigInt(config.terminalTotalDifficulty) ||
+      config.terminalTotalDifficultyPassed === false)
   ) {
     throw new Error('nonzero terminal total difficulty is not supported')
   }