From 76a9583e333b4910b43f3a2c5616ca9b75f25bec Mon Sep 17 00:00:00 2001
From: David Kaplan <davidkaplan@bitgo.com>
Date: Mon, 4 Aug 2025 14:07:18 -0400
Subject: [PATCH] feat(utxo-lib): add BIP322 message subtype to PsbtUtil

Add BIP322_MESSAGE subtype to ProprietaryKeySubtype enum for use in PSBT
proprietary keys.

Issue: BTC-2361

Co-authored-by: llm-git <llm-git@ttll.de>
---
 modules/utxo-lib/src/bitgo/PsbtUtil.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/utxo-lib/src/bitgo/PsbtUtil.ts b/modules/utxo-lib/src/bitgo/PsbtUtil.ts
index d3f2cf6fff..fd1bd5c32a 100644
--- a/modules/utxo-lib/src/bitgo/PsbtUtil.ts
+++ b/modules/utxo-lib/src/bitgo/PsbtUtil.ts
@@ -21,6 +21,7 @@ export enum ProprietaryKeySubtype {
   MUSIG2_PUB_NONCE = 0x02,
   MUSIG2_PARTIAL_SIG = 0x03,
   PAYGO_ADDRESS_ATTESTATION_PROOF = 0x04,
+  BIP322_MESSAGE = 0x05,
 }
 
 /**