From 61fa15c47cb57a791a35de3cdb8a870e6abdf715 Mon Sep 17 00:00:00 2001
From: "sm.wu" <hero78119@gmail.com>
Date: Mon, 9 Feb 2026 21:27:31 +0800
Subject: [PATCH] misc: forked api signature

---
 crates/transcript/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/transcript/src/lib.rs b/crates/transcript/src/lib.rs
index 9efcc25..2b76220 100644
--- a/crates/transcript/src/lib.rs
+++ b/crates/transcript/src/lib.rs
@@ -131,7 +131,7 @@ pub trait Transcript<E: ExtensionField>: GrindingChallenger<Witness = E::BaseFie
 /// Forkable Transcript trait, enable fork method
 pub trait ForkableTranscript<E: ExtensionField>: Transcript<E> + Sized + Clone {
     /// Fork this transcript into n different threads.
-    fn fork(self, n: usize) -> Vec<Self> {
+    fn fork(&self, n: usize) -> Vec<impl Transcript<E>> {
         (0..n)
             .map(|i| {
                 let mut fork = self.clone();