From 69bfa5beff609f218753f459e6a8892e65a09714 Mon Sep 17 00:00:00 2001
From: Mononaut <github@monospace.live>
Date: Mon, 6 May 2024 15:01:15 +0000
Subject: [PATCH] Hardcode testnet4 genesis hash

---
 src/chain.rs | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/chain.rs b/src/chain.rs
index 0627512..8abf9a4 100644
--- a/src/chain.rs
+++ b/src/chain.rs
@@ -1,3 +1,5 @@
+use std::str::FromStr;
+
 #[cfg(not(feature = "liquid"))] // use regular Bitcoin data structures
 pub use bitcoin::{
     blockdata::{opcodes, script, witness::Witness},
@@ -131,25 +133,25 @@ pub fn genesis_hash(network: Network) -> BlockHash {
     return liquid_genesis_hash(network);
 }
 
-pub fn bitcoin_genesis_hash(network: BNetwork) -> bitcoin::BlockHash {
+pub fn bitcoin_genesis_hash(network: Network) -> bitcoin::BlockHash {
     lazy_static! {
         static ref BITCOIN_GENESIS: bitcoin::BlockHash =
             genesis_block(BNetwork::Bitcoin).block_hash();
         static ref TESTNET_GENESIS: bitcoin::BlockHash =
             genesis_block(BNetwork::Testnet).block_hash();
         static ref TESTNET4_GENESIS: bitcoin::BlockHash =
-            genesis_block(BNetwork::Testnet4).block_hash();
+            BlockHash::from_str("00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043").unwrap();
         static ref REGTEST_GENESIS: bitcoin::BlockHash =
             genesis_block(BNetwork::Regtest).block_hash();
         static ref SIGNET_GENESIS: bitcoin::BlockHash =
             genesis_block(BNetwork::Signet).block_hash();
     }
     match network {
-        BNetwork::Bitcoin => *BITCOIN_GENESIS,
-        BNetwork::Testnet => *TESTNET_GENESIS,
-        BNetwork::Testnet4 => *TESTNET4_GENESIS,
-        BNetwork::Regtest => *REGTEST_GENESIS,
-        BNetwork::Signet => *SIGNET_GENESIS,
+        Network::Bitcoin => *BITCOIN_GENESIS,
+        Network::Testnet => *TESTNET_GENESIS,
+        Network::Testnet4 => *TESTNET4_GENESIS,
+        Network::Regtest => *REGTEST_GENESIS,
+        Network::Signet => *SIGNET_GENESIS,
     }
 }
 
@@ -203,7 +205,7 @@ impl From<Network> for BNetwork {
         match network {
             Network::Bitcoin => BNetwork::Bitcoin,
             Network::Testnet => BNetwork::Testnet,
-            Network::Testnet4 => BNetwork::Testnet4,
+            Network::Testnet4 => BNetwork::Testnet,
             Network::Regtest => BNetwork::Regtest,
             Network::Signet => BNetwork::Signet,
         }
@@ -216,7 +218,6 @@ impl From<BNetwork> for Network {
         match network {
             BNetwork::Bitcoin => Network::Bitcoin,
             BNetwork::Testnet => Network::Testnet,
-            BNetwork::Testnet4 => Network::Testnet4,
             BNetwork::Regtest => Network::Regtest,
             BNetwork::Signet => Network::Signet,
         }