diff --git a/bin/drk/src/dao.rs b/bin/drk/src/dao.rs
index e833098f7..7546081a1 100644
--- a/bin/drk/src/dao.rs
+++ b/bin/drk/src/dao.rs
@@ -42,8 +42,8 @@ use darkfi_sdk::{
     crypto::{
         poseidon_hash,
         util::{fp_mod_fv, fp_to_u64},
-        Keypair, MerkleNode, MerkleTree, PublicKey, SecretKey, TokenId, DAO_CONTRACT_ID,
-        MONEY_CONTRACT_ID,
+        FuncId, FuncRef, Keypair, MerkleNode, MerkleTree, PublicKey, SecretKey, TokenId,
+        DAO_CONTRACT_ID, MONEY_CONTRACT_ID,
     },
     pasta::pallas,
     ContractCall,
@@ -1175,8 +1175,12 @@ impl Drk {
             return Err(Error::RusqliteError(format!("DAO with ID {dao_id} not found in wallet")))
         };
 
+        let dao_spend_hook =
+            FuncRef { contract_id: *DAO_CONTRACT_ID, func_code: DaoFunction::Exec as u8 }
+                .to_func_id();
+
         let mut coins = self.get_coins(false).await?;
-        coins.retain(|x| x.0.note.spend_hook == DAO_CONTRACT_ID.inner());
+        coins.retain(|x| x.0.note.spend_hook == dao_spend_hook);
         coins.retain(|x| x.0.note.user_data == dao.bulla().inner());
 
         // Fill this map with balances
@@ -1401,10 +1405,14 @@ impl Drk {
         let bulla = dao.bulla();
         let owncoins = self.get_coins(false).await?;
 
+        let dao_spend_hook =
+            FuncRef { contract_id: *DAO_CONTRACT_ID, func_code: DaoFunction::Exec as u8 }
+                .to_func_id();
+
         let mut dao_owncoins: Vec<OwnCoin> = owncoins.iter().map(|x| x.0.clone()).collect();
         dao_owncoins.retain(|x| {
             x.note.token_id == token_id &&
-                x.note.spend_hook == DAO_CONTRACT_ID.inner() &&
+                x.note.spend_hook == dao_spend_hook &&
                 x.note.user_data == bulla.inner()
         });
 
@@ -1600,7 +1608,7 @@ impl Drk {
             self.get_coins(false).await?.iter().map(|x| x.0.clone()).collect();
 
         coins.retain(|x| x.note.token_id == dao.gov_token_id);
-        coins.retain(|x| x.note.spend_hook == pallas::Base::zero());
+        coins.retain(|x| x.note.spend_hook == FuncId::none());
 
         if coins.iter().map(|x| x.note.value).sum::<u64>() < weight {
             return Err(Error::Custom("[dao_vote] Not enough balance for vote weight".to_string()))
diff --git a/bin/drk/src/main.rs b/bin/drk/src/main.rs
index 34ae7c2e5..4003c83a2 100644
--- a/bin/drk/src/main.rs
+++ b/bin/drk/src/main.rs
@@ -44,7 +44,7 @@ use darkfi::{
 };
 use darkfi_money_contract::model::Coin;
 use darkfi_sdk::{
-    crypto::{PublicKey, SecretKey, TokenId},
+    crypto::{FuncId, PublicKey, SecretKey, TokenId},
     pasta::{group::ff::PrimeField, pallas},
 };
 use darkfi_serial::{deserialize, serialize};
@@ -747,20 +747,21 @@ async fn realmain(args: Args, ex: Arc<smol::Executor<'static>>) -> Result<()> {
                     "Spend Hook",
                     "User Data"
                 ]);
-                let zero = pallas::Base::zero();
                 for coin in coins {
                     let aliases = match aliases_map.get(&coin.0.note.token_id.to_string()) {
                         Some(a) => a,
                         None => "-",
                     };
 
-                    let spend_hook = if coin.0.note.spend_hook != zero {
-                        bs58::encode(&serialize(&coin.0.note.spend_hook)).into_string().to_string()
+                    let spend_hook = if coin.0.note.spend_hook != FuncId::none() {
+                        bs58::encode(&serialize(&coin.0.note.spend_hook.inner()))
+                            .into_string()
+                            .to_string()
                     } else {
                         String::from("-")
                     };
 
-                    let user_data = if coin.0.note.user_data != zero {
+                    let user_data = if coin.0.note.user_data != pallas::Base::ZERO {
                         bs58::encode(&serialize(&coin.0.note.user_data)).into_string().to_string()
                     } else {
                         String::from("-")
diff --git a/bin/drk/src/money.rs b/bin/drk/src/money.rs
index 61a1d4885..e0e1bcd97 100644
--- a/bin/drk/src/money.rs
+++ b/bin/drk/src/money.rs
@@ -31,7 +31,7 @@ use darkfi_money_contract::{
 use darkfi_sdk::{
     bridgetree,
     crypto::{
-        note::AeadEncryptedNote, poseidon_hash, Keypair, MerkleNode, MerkleTree, Nullifier,
+        note::AeadEncryptedNote, poseidon_hash, FuncId, Keypair, MerkleNode, MerkleTree, Nullifier,
         PublicKey, SecretKey, TokenId, MONEY_CONTRACT_ID,
     },
     pasta::pallas,
@@ -351,7 +351,7 @@ impl Drk {
     /// Fetch known unspent balances from the wallet and return them as a hashmap.
     pub async fn money_balance(&self) -> Result<HashMap<String, u64>> {
         let mut coins = self.get_coins(false).await?;
-        coins.retain(|x| x.0.note.spend_hook == pallas::Base::zero());
+        coins.retain(|x| x.0.note.spend_hook == FuncId::none());
 
         // Fill this map with balances
         let mut balmap: HashMap<String, u64> = HashMap::new();
@@ -467,7 +467,7 @@ impl Drk {
             let note = MoneyNote {
                 value,
                 token_id,
-                spend_hook,
+                spend_hook: spend_hook.into(),
                 user_data,
                 coin_blind,
                 value_blind,
diff --git a/bin/drk/src/swap.rs b/bin/drk/src/swap.rs
index a1b5461c0..facde4909 100644
--- a/bin/drk/src/swap.rs
+++ b/bin/drk/src/swap.rs
@@ -33,7 +33,7 @@ use darkfi_money_contract::{
 };
 use darkfi_sdk::{
     crypto::{
-        contract_id::MONEY_CONTRACT_ID, pedersen::pedersen_commitment_u64, poseidon_hash,
+        contract_id::MONEY_CONTRACT_ID, pedersen::pedersen_commitment_u64, poseidon_hash, FuncId,
         PublicKey, SecretKey, TokenId,
     },
     pasta::pallas,
@@ -83,7 +83,7 @@ impl Drk {
         owncoins.retain(|x| {
             x.0.note.value == value_send &&
                 x.0.note.token_id == token_send &&
-                x.0.note.spend_hook == pallas::Base::zero()
+                x.0.note.spend_hook == FuncId::none()
         });
 
         if owncoins.is_empty() {
@@ -139,8 +139,8 @@ impl Drk {
             value_recv,
             token_id_recv: token_recv,
             user_data_blind_send: pallas::Base::random(&mut OsRng), // <-- FIXME: Perhaps should be passed in
-            spend_hook_recv: pallas::Base::zero(), // <-- FIXME: Should be passed in
-            user_data_recv: pallas::Base::zero(),  // <-- FIXME: Should be passed in
+            spend_hook_recv: FuncId::none(), // <-- FIXME: Should be passed in
+            user_data_recv: pallas::Base::zero(), // <-- FIXME: Should be passed in
             value_blinds,
             token_blinds,
             coin: burn_coin,
@@ -229,8 +229,8 @@ impl Drk {
             value_recv: partial.value_pair.0,
             token_id_recv: partial.token_pair.0,
             user_data_blind_send: pallas::Base::random(&mut OsRng), // <-- FIXME: Perhaps should be passed in
-            spend_hook_recv: pallas::Base::zero(), // <-- FIXME: Should be passed in
-            user_data_recv: pallas::Base::zero(),  // <-- FIXME: Should be passed in
+            spend_hook_recv: FuncId::none(), // <-- FIXME: Should be passed in
+            user_data_recv: pallas::Base::ZERO, // <-- FIXME: Should be passed in
             value_blinds: [partial.value_blinds[1], partial.value_blinds[0]],
             token_blinds: [partial.token_blinds[1], partial.token_blinds[0]],
             coin: burn_coin,
diff --git a/bin/drk/src/token.rs b/bin/drk/src/token.rs
index 5f4e5788c..743bae01c 100644
--- a/bin/drk/src/token.rs
+++ b/bin/drk/src/token.rs
@@ -37,8 +37,8 @@ use darkfi_money_contract::{
 };
 use darkfi_sdk::{
     crypto::{
-        contract_id::MONEY_CONTRACT_ID, pasta_prelude::*, FuncRef, Keypair, PublicKey, SecretKey,
-        TokenId,
+        contract_id::MONEY_CONTRACT_ID, pasta_prelude::*, FuncId, FuncRef, Keypair, PublicKey,
+        SecretKey, TokenId,
     },
     dark_tree::DarkLeaf,
     pasta::pallas,
@@ -120,7 +120,7 @@ impl Drk {
         token_attrs: TokenAttributes,
     ) -> Result<Transaction> {
         // TODO: Mint directly into DAO treasury
-        let spend_hook = pallas::Base::zero();
+        let spend_hook = FuncId::none();
         let user_data = pallas::Base::zero();
 
         let amount = decode_base10(amount, BALANCE_BASE10_DECIMALS, false)?;
diff --git a/bin/drk/src/transfer.rs b/bin/drk/src/transfer.rs
index e2f2be35f..e6b3965f6 100644
--- a/bin/drk/src/transfer.rs
+++ b/bin/drk/src/transfer.rs
@@ -30,8 +30,7 @@ use darkfi_money_contract::{
     MoneyFunction, MONEY_CONTRACT_ZKAS_BURN_NS_V1, MONEY_CONTRACT_ZKAS_MINT_NS_V1,
 };
 use darkfi_sdk::{
-    crypto::{contract_id::MONEY_CONTRACT_ID, Keypair, PublicKey, TokenId},
-    pasta::pallas,
+    crypto::{contract_id::MONEY_CONTRACT_ID, FuncId, Keypair, PublicKey, TokenId},
     tx::ContractCall,
 };
 use darkfi_serial::Encodable;
@@ -53,7 +52,7 @@ impl Drk {
         // We're only interested in the ones for the token_id we're sending
         // And the ones not owned by some protocol (meaning spend-hook should be 0)
         owncoins.retain(|x| x.note.token_id == token_id);
-        owncoins.retain(|x| x.note.spend_hook == pallas::Base::zero());
+        owncoins.retain(|x| x.note.spend_hook == FuncId::none());
         if owncoins.is_empty() {
             return Err(Error::Custom(format!("Did not find any coins with token ID: {token_id}")))
         }
diff --git a/src/contract/money/src/entrypoint.rs b/src/contract/money/src/entrypoint.rs
index 653dfe8a7..c644d0a6b 100644
--- a/src/contract/money/src/entrypoint.rs
+++ b/src/contract/money/src/entrypoint.rs
@@ -21,7 +21,6 @@ use darkfi_sdk::{
     dark_tree::DarkLeaf,
     db::{db_init, db_lookup, db_set, zkas_db_set},
     error::ContractResult,
-    msg,
     pasta::pallas,
     util::set_return_data,
     ContractCall,
diff --git a/src/contract/money/src/entrypoint/fee_v1.rs b/src/contract/money/src/entrypoint/fee_v1.rs
index 91315e0aa..5635d60cf 100644
--- a/src/contract/money/src/entrypoint/fee_v1.rs
+++ b/src/contract/money/src/entrypoint/fee_v1.rs
@@ -18,7 +18,7 @@
 
 use darkfi_sdk::{
     crypto::{
-        pasta_prelude::*, pedersen_commitment_u64, poseidon_hash, ContractId, FuncId, MerkleNode,
+        pasta_prelude::*, pedersen_commitment_u64, poseidon_hash, ContractId, MerkleNode,
         PublicKey, DARK_TOKEN_ID,
     },
     dark_tree::DarkLeaf,
diff --git a/src/contract/money/src/entrypoint/swap_v1.rs b/src/contract/money/src/entrypoint/swap_v1.rs
index ad5c2bc89..a041fb7c8 100644
--- a/src/contract/money/src/entrypoint/swap_v1.rs
+++ b/src/contract/money/src/entrypoint/swap_v1.rs
@@ -17,7 +17,7 @@
  */
 
 use darkfi_sdk::{
-    crypto::{ContractId, FuncId},
+    crypto::ContractId,
     dark_tree::DarkLeaf,
     db::{db_contains_key, db_lookup},
     error::{ContractError, ContractResult},
diff --git a/src/sdk/src/crypto/func_ref.rs b/src/sdk/src/crypto/func_ref.rs
index a61ccc648..a1c188508 100644
--- a/src/sdk/src/crypto/func_ref.rs
+++ b/src/sdk/src/crypto/func_ref.rs
@@ -50,3 +50,9 @@ impl FuncId {
         self.0
     }
 }
+
+impl From<pallas::Base> for FuncId {
+    fn from(func_id: pallas::Base) -> Self {
+        Self(func_id)
+    }
+}