diff --git a/crates/chain/src/indexed_tx_graph.rs b/crates/chain/src/indexed_tx_graph.rs
index 6d8c16ff..c550d86f 100644
--- a/crates/chain/src/indexed_tx_graph.rs
+++ b/crates/chain/src/indexed_tx_graph.rs
@@ -12,6 +12,7 @@ use crate::{
 /// A struct that combines [`TxGraph`] and an [`Indexer`] implementation.
 ///
 /// This structure ensures that [`TxGraph`] and [`Indexer`] are updated atomically.
+#[derive(Debug)]
 pub struct IndexedTxGraph<A, I> {
     /// Transaction index.
     pub index: I,
@@ -27,12 +28,14 @@ impl<A, I: Default> Default for IndexedTxGraph<A, I> {
     }
 }
 
-impl<A: Anchor, I: Indexer> IndexedTxGraph<A, I> {
+impl<A, I> IndexedTxGraph<A, I> {
     /// Get a reference of the internal transaction graph.
     pub fn graph(&self) -> &TxGraph<A> {
         &self.graph
     }
+}
 
+impl<A: Anchor, I: Indexer> IndexedTxGraph<A, I> {
     /// Applies the [`IndexedAdditions`] to the [`IndexedTxGraph`].
     pub fn apply_additions(&mut self, additions: IndexedAdditions<A, I::Additions>) {
         let IndexedAdditions {
@@ -217,7 +220,7 @@ impl<A: Anchor, I: OwnedIndexer> IndexedTxGraph<A, I> {
         C: ChainOracle,
         F: FnMut(&Script) -> bool,
     {
-        let tip_height = chain_tip.anchor_block().height;
+        let tip_height = chain_tip.height;
 
         let mut immature = 0;
         let mut trusted_pending = 0;
diff --git a/crates/chain/src/keychain/txout_index.rs b/crates/chain/src/keychain/txout_index.rs
index f8ef46be..c7a8dd54 100644
--- a/crates/chain/src/keychain/txout_index.rs
+++ b/crates/chain/src/keychain/txout_index.rs
@@ -89,7 +89,7 @@ impl<K> Deref for KeychainTxOutIndex<K> {
     }
 }
 
-impl<K: Clone + Ord + Debug + 'static> Indexer for KeychainTxOutIndex<K> {
+impl<K: Clone + Ord + Debug> Indexer for KeychainTxOutIndex<K> {
     type Additions = DerivationAdditions<K>;
 
     fn index_txout(&mut self, outpoint: OutPoint, txout: &TxOut) -> Self::Additions {
@@ -109,9 +109,9 @@ impl<K: Clone + Ord + Debug + 'static> Indexer for KeychainTxOutIndex<K> {
     }
 }
 
-impl<K: Clone + Ord + Debug + 'static> OwnedIndexer for KeychainTxOutIndex<K> {
+impl<K: Clone + Ord + Debug> OwnedIndexer for KeychainTxOutIndex<K> {
     fn is_spk_owned(&self, spk: &Script) -> bool {
-        self.inner().is_spk_owned(spk)
+        self.index_of_spk(spk).is_some()
     }
 }
 
diff --git a/crates/chain/src/spk_txout_index.rs b/crates/chain/src/spk_txout_index.rs
index 9fdf3bc0..ae944149 100644
--- a/crates/chain/src/spk_txout_index.rs
+++ b/crates/chain/src/spk_txout_index.rs
@@ -53,7 +53,7 @@ impl<I> Default for SpkTxOutIndex<I> {
     }
 }
 
-impl<I: Clone + Ord + 'static> Indexer for SpkTxOutIndex<I> {
+impl<I: Clone + Ord> Indexer for SpkTxOutIndex<I> {
     type Additions = ();
 
     fn index_txout(&mut self, outpoint: OutPoint, txout: &TxOut) -> Self::Additions {