From 8805b20334a6e7625a338b704d5f3d457dd61e3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C5=A9=20Ho=C3=A0ng?=
 <127402781+hadelive@users.noreply.github.com>
Date: Tue, 3 Sep 2024 13:03:45 +0700
Subject: [PATCH] fix: update hash script data (#351)

---
 chain/rust/src/crypto/hash.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/chain/rust/src/crypto/hash.rs b/chain/rust/src/crypto/hash.rs
index c8fbe5f0..c9f281a5 100644
--- a/chain/rust/src/crypto/hash.rs
+++ b/chain/rust/src/crypto/hash.rs
@@ -40,13 +40,16 @@ pub fn hash_script_data(
     let mut buf = cbor_event::se::Serializer::new_vec();
     match datums {
         Some(datums) if redeemers.is_empty() => {
-            /*
+            /* (Deprecated)
             ; Finally, note that in the case that a transaction includes datums but does not
             ; include any redeemers, the script data format becomes (in hex):
             ; [ 80 | datums | A0 ]
             ; corresponding to a CBOR empty list and an empty map (our apologies).
             */
-            buf.write_raw_bytes(&[0x80]).unwrap();
+            /* Post Babbage:
+            ; [ A0 | datums | A0 ]
+            */
+            buf.write_raw_bytes(&[0xA0]).unwrap();
             datums.serialize(&mut buf, false).unwrap();
             buf.write_raw_bytes(&[0xA0]).unwrap();
         }