From 9a666e4a29077fda0951e14b3ab274d4d882a855 Mon Sep 17 00:00:00 2001
From: Jack Grigg <jack@electriccoin.co>
Date: Thu, 6 Jan 2022 17:01:11 +0000
Subject: [PATCH] ZIP 244: Reverse order of value and script_code in
 txin_sig_digest

---
 zip_0244.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zip_0244.py b/zip_0244.py
index cdc48f6..1159e32 100755
--- a/zip_0244.py
+++ b/zip_0244.py
@@ -324,8 +324,8 @@ def txin_sig_digest(tx, txin):
     digest = blake2b(digest_size=32, person=b'Zcash___TxInHash')
     if txin is not None:
         digest.update(bytes(tx.vin[txin.nIn].prevout))
-        digest.update(bytes(txin.scriptCode))
         digest.update(struct.pack('<Q', txin.amount))
+        digest.update(bytes(txin.scriptCode))
         digest.update(struct.pack('<I', tx.vin[txin.nIn].nSequence))
     return digest.digest()