From 5b331c144ba2498df23969a97fc257f227f1f9d8 Mon Sep 17 00:00:00 2001
From: natsoni <natsoni@protonmail.com>
Date: Wed, 8 Jan 2025 15:25:19 +0100
Subject: [PATCH] P2A address format decoding

---
 frontend/src/app/shared/transaction.utils.ts | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/frontend/src/app/shared/transaction.utils.ts b/frontend/src/app/shared/transaction.utils.ts
index af1412838..b33d88c2f 100644
--- a/frontend/src/app/shared/transaction.utils.ts
+++ b/frontend/src/app/shared/transaction.utils.ts
@@ -988,7 +988,7 @@ function scriptPubKeyToAddress(scriptPubKey: string, network: string): { address
   }
   // anchor
   if (scriptPubKey === '51024e73') {
-    return { address: 'bc1pfeessrawgf', type: 'anchor' };
+    return { address: p2a(network), type: 'anchor' };
   }
   // op_return
   if (/^6a/.test(scriptPubKey)) {
@@ -1048,6 +1048,15 @@ function p2tr(pubKeyHash: string, network: string): string {
   return bech32Address;
 }
 
+function p2a(network: string): string {
+  const pubkeyHashArray = hexStringToUint8Array('4e73');
+  const hrp = ['testnet', 'testnet4', 'signet'].includes(network) ? 'tb' : 'bc';
+  const version = 1;
+  const words = [version].concat(toWords(pubkeyHashArray));
+  const bech32Address = bech32Encode(hrp, words, 0x2bc830a3);
+  return bech32Address;
+}
+
 // base58 encoding
 function base58Encode(data: Uint8Array): string {
   const BASE58_ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";