From a90763f8da39c16616e50dc48ee1cd79ffd9c75a Mon Sep 17 00:00:00 2001
From: Vicky <vickyaviles847@gmail.com>
Date: Tue, 17 Mar 2026 02:24:54 +0800
Subject: [PATCH] params: add Amsterdam fork to Timestamp and BlobConfig
 helpers

---
 params/config.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/params/config.go b/params/config.go
index 197ed56f8a..69b261a6dd 100644
--- a/params/config.go
+++ b/params/config.go
@@ -1172,6 +1172,8 @@ func (c *ChainConfig) LatestFork(time uint64) forks.Fork {
 // BlobConfig returns the blob config associated with the provided fork.
 func (c *ChainConfig) BlobConfig(fork forks.Fork) *BlobConfig {
 	switch fork {
+	case forks.Amsterdam:
+		return c.BlobScheduleConfig.Amsterdam
 	case forks.BPO5:
 		return c.BlobScheduleConfig.BPO5
 	case forks.BPO4:
@@ -1217,6 +1219,8 @@ func (c *ChainConfig) ActiveSystemContracts(time uint64) map[string]common.Addre
 // the fork isn't defined or isn't a time-based fork.
 func (c *ChainConfig) Timestamp(fork forks.Fork) *uint64 {
 	switch {
+	case fork == forks.Amsterdam:
+		return c.AmsterdamTime
 	case fork == forks.BPO5:
 		return c.BPO5Time
 	case fork == forks.BPO4: