diff --git a/src/blockdata/transaction.rs b/src/blockdata/transaction.rs
index c92b73c3..c8241f5e 100644
--- a/src/blockdata/transaction.rs
+++ b/src/blockdata/transaction.rs
@@ -852,7 +852,7 @@ pub type SigHashType = EcdsaSighashType;
 ///
 /// Fixed values so they can be cast as integer types for encoding (see also
 /// [`SchnorrSighashType`]).
-#[derive(PartialEq, Eq, Debug, Copy, Clone)]
+#[derive(PartialEq, Eq, Debug, Copy, Clone, Hash)]
 pub enum EcdsaSighashType {
     /// 0x1: Sign all outputs.
     All		= 0x01,
diff --git a/src/util/ecdsa.rs b/src/util/ecdsa.rs
index 8c4282d1..4d85c37c 100644
--- a/src/util/ecdsa.rs
+++ b/src/util/ecdsa.rs
@@ -14,7 +14,7 @@ use secp256k1;
 use crate::EcdsaSighashType;
 
 /// An ECDSA signature with the corresponding hash type.
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "actual_serde"))]
 pub struct EcdsaSig {
diff --git a/src/util/psbt/map/input.rs b/src/util/psbt/map/input.rs
index a6277066..754df14b 100644
--- a/src/util/psbt/map/input.rs
+++ b/src/util/psbt/map/input.rs
@@ -68,7 +68,7 @@ const PSBT_IN_PROPRIETARY: u8 = 0xFC;
 
 /// A key-value map for an input of the corresponding index in the unsigned
 /// transaction.
-#[derive(Clone, Default, Debug, PartialEq, Eq)]
+#[derive(Clone, Default, Debug, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "actual_serde"))]
 pub struct Input {
diff --git a/src/util/psbt/map/output.rs b/src/util/psbt/map/output.rs
index 71dcf939..74d27d5a 100644
--- a/src/util/psbt/map/output.rs
+++ b/src/util/psbt/map/output.rs
@@ -36,7 +36,7 @@ const PSBT_OUT_PROPRIETARY: u8 = 0xFC;
 
 /// A key-value map for an output of the corresponding index in the unsigned
 /// transaction.
-#[derive(Clone, Default, Debug, PartialEq, Eq)]
+#[derive(Clone, Default, Debug, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "actual_serde"))]
 pub struct Output {
@@ -123,6 +123,12 @@ impl PartialEq for TapTree {
     }
 }
 
+impl core::hash::Hash for TapTree {
+    fn hash<H: core::hash::Hasher>(&self, state: &mut H) {
+        self.node_info().hash(state)
+    }
+}
+
 impl Eq for TapTree {}
 
 impl From<TapTree> for TaprootBuilder {
diff --git a/src/util/psbt/mod.rs b/src/util/psbt/mod.rs
index 6b6469bd..d978e884 100644
--- a/src/util/psbt/mod.rs
+++ b/src/util/psbt/mod.rs
@@ -37,7 +37,7 @@ use crate::util::bip32::{ExtendedPubKey, KeySource};
 pub type Psbt = PartiallySignedTransaction;
 
 /// A Partially Signed Transaction.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "actual_serde"))]
 pub struct PartiallySignedTransaction {
diff --git a/src/util/schnorr.rs b/src/util/schnorr.rs
index 7c13cc26..01859387 100644
--- a/src/util/schnorr.rs
+++ b/src/util/schnorr.rs
@@ -205,7 +205,7 @@ impl From<TweakedKeyPair> for crate::KeyPair {
 }
 
 /// A BIP340-341 serialized schnorr signature with the corresponding hash type.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "actual_serde"))]
 pub struct SchnorrSig {