diff --git a/internal/verify/bundle_metadata_drift_test.go b/internal/verify/bundle_metadata_drift_test.go
new file mode 100644
index 0000000..fdd5b42
--- /dev/null
+++ b/internal/verify/bundle_metadata_drift_test.go
@@ -0,0 +1,63 @@
+package verify
+
+import (
+	"path/filepath"
+	"testing"
+
+	snapshotpkg "digiemu-core/pkg/snapshot"
+)
+
+func TestReplayHashIgnoresExpectedHashV1Metadata(t *testing.T) {
+	root := repoRoot(t)
+
+	fixtureRoot := filepath.Join(root, "data", "test-fixtures")
+	dataRoot := filepath.Join(root, "data")
+
+	bundleRoot, _, err := FindBundleRoot("demo", fixtureRoot, dataRoot, false)
+	if err != nil {
+		t.Fatalf("FindBundleRoot: %v", err)
+	}
+
+	originalBundle, _, err := LoadBundleRootV1(bundleRoot)
+	if err != nil {
+		t.Fatalf("LoadBundleRootV1 original: %v", err)
+	}
+
+	modifiedBundle, _, err := LoadBundleRootV1(bundleRoot)
+	if err != nil {
+		t.Fatalf("LoadBundleRootV1 modified: %v", err)
+	}
+
+	modifiedBundle.Snapshot = []byte(`{
+		"ref": "demo",
+		"expected_hash_v1": "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
+		"state": {
+			"hello": "world",
+			"n": 1
+		}
+	}`)
+
+	originalReplayed, err := ReplayV1(originalBundle, []string{"test-original"})
+	if err != nil {
+		t.Fatalf("ReplayV1 original: %v", err)
+	}
+
+	modifiedReplayed, err := ReplayV1(modifiedBundle, []string{"test-modified"})
+	if err != nil {
+		t.Fatalf("ReplayV1 modified: %v", err)
+	}
+
+	originalHash, err := snapshotpkg.HashV1FromState(originalReplayed.StateV1)
+	if err != nil {
+		t.Fatalf("HashV1FromState original: %v", err)
+	}
+
+	modifiedHash, err := snapshotpkg.HashV1FromState(modifiedReplayed.StateV1)
+	if err != nil {
+		t.Fatalf("HashV1FromState modified: %v", err)
+	}
+
+	if originalHash != modifiedHash {
+		t.Fatalf("expected_hash_v1 metadata must be excluded from replay hash scope:\n original: %s\n modified: %s", originalHash, modifiedHash)
+	}
+}