diff --git a/cfd_protocol/src/lib.rs b/cfd_protocol/src/lib.rs
index 02480b0..d908c38 100644
--- a/cfd_protocol/src/lib.rs
+++ b/cfd_protocol/src/lib.rs
@@ -1,3 +1,4 @@
+pub use interval::Interval;
 pub use secp256k1_zkp;
 
 use anyhow::{bail, Context, Result};
@@ -448,15 +449,23 @@ pub struct Payout {
 
 impl Payout {
     pub fn new(
-        msg_nonce_pairs: Vec<(Vec<u8>, schnorrsig::PublicKey)>,
+        interval: Interval,
+        nonce_pks: Vec<schnorrsig::PublicKey>,
         maker_amount: Amount,
         taker_amount: Amount,
-    ) -> Self {
-        Self {
-            msg_nonce_pairs,
-            maker_amount,
-            taker_amount,
-        }
+    ) -> Vec<Self> {
+        interval
+            .as_digits()
+            .into_iter()
+            .map(|digits| {
+                let msg_nonce_pairs = digits.zip(nonce_pks.clone()).collect();
+                Self {
+                    msg_nonce_pairs,
+                    maker_amount,
+                    taker_amount,
+                }
+            })
+            .collect()
     }
 
     fn into_txouts(self, maker_address: &Address, taker_address: &Address) -> Vec<TxOut> {
@@ -942,24 +951,28 @@ mod tests {
 
         let orig_maker_amount = 1000;
         let orig_taker_amount = 1000;
-        let payout = Payout::new(
-            vec![(b"win".to_vec(), nonce_pk)],
+        let payouts = Payout::new(
+            Interval::new(0, 10_000).unwrap(),
+            vec![nonce_pk; 20],
             Amount::from_sat(orig_maker_amount),
             Amount::from_sat(orig_taker_amount),
         );
         let fee = 100;
-        let updated_payout = payout
-            .with_updated_fee(Amount::from_sat(fee), dummy_dust_limit, dummy_dust_limit)
-            .unwrap();
 
-        assert_eq!(
-            updated_payout.maker_amount,
-            Amount::from_sat(orig_maker_amount - fee / 2)
-        );
-        assert_eq!(
-            updated_payout.taker_amount,
-            Amount::from_sat(orig_taker_amount - fee / 2)
-        );
+        for payout in payouts {
+            let updated_payout = payout
+                .with_updated_fee(Amount::from_sat(fee), dummy_dust_limit, dummy_dust_limit)
+                .unwrap();
+
+            assert_eq!(
+                updated_payout.maker_amount,
+                Amount::from_sat(orig_maker_amount - fee / 2)
+            );
+            assert_eq!(
+                updated_payout.taker_amount,
+                Amount::from_sat(orig_taker_amount - fee / 2)
+            );
+        }
     }
 
     #[test]
@@ -975,20 +988,24 @@ mod tests {
 
         let orig_maker_amount = dummy_dust_limit.as_sat() - 1;
         let orig_taker_amount = 1000;
-        let payout = Payout::new(
-            vec![(b"win".to_vec(), nonce_pk)],
+        let payouts = Payout::new(
+            Interval::new(0, 10_000).unwrap(),
+            vec![nonce_pk; 20],
             Amount::from_sat(orig_maker_amount),
             Amount::from_sat(orig_taker_amount),
         );
         let fee = 100;
-        let updated_payout = payout
-            .with_updated_fee(Amount::from_sat(fee), dummy_dust_limit, dummy_dust_limit)
-            .unwrap();
 
-        assert_eq!(updated_payout.maker_amount, Amount::from_sat(0));
-        assert_eq!(
-            updated_payout.taker_amount,
-            Amount::from_sat(orig_taker_amount - (fee + orig_maker_amount))
-        );
+        for payout in payouts {
+            let updated_payout = payout
+                .with_updated_fee(Amount::from_sat(fee), dummy_dust_limit, dummy_dust_limit)
+                .unwrap();
+
+            assert_eq!(updated_payout.maker_amount, Amount::from_sat(0));
+            assert_eq!(
+                updated_payout.taker_amount,
+                Amount::from_sat(orig_taker_amount - (fee + orig_maker_amount))
+            );
+        }
     }
 }
diff --git a/cfd_protocol/tests/cfds.rs b/cfd_protocol/tests/cfds.rs
index b1e18ee..33aa373 100644
--- a/cfd_protocol/tests/cfds.rs
+++ b/cfd_protocol/tests/cfds.rs
@@ -7,6 +7,7 @@ use bdk::wallet::AddressIndex;
 use bdk::SignOptions;
 use bitcoin::util::psbt::PartiallySignedTransaction;
 use bitcoin::Txid;
+use cfd_protocol::interval::Interval;
 use cfd_protocol::{
     commit_descriptor, compute_adaptor_point, create_cfd_transactions, finalize_spend_transaction,
     lock_descriptor, punish_transaction, renew_cfd_transactions, spending_tx_sighash,
@@ -32,22 +33,19 @@ fn create_cfd() {
 
     let payouts = vec![
         Payout::new(
-            vec![vec![0u8]; 20]
-                .into_iter()
-                .zip(announcement.nonce_pks())
-                .collect(),
+            Interval::new(0, 10_000).unwrap(),
+            announcement.nonce_pks(),
             Amount::from_btc(1.5).unwrap(),
             Amount::from_btc(0.5).unwrap(),
         ),
         Payout::new(
-            vec![vec![1u8]; 20]
-                .into_iter()
-                .zip(announcement.nonce_pks())
-                .collect(),
+            Interval::new(10_001, 20_000).unwrap(),
+            announcement.nonce_pks(),
             Amount::ZERO,
             Amount::from_btc(2.0).unwrap(),
         ),
-    ];
+    ]
+    .concat();
 
     let refund_timelock = 0;
 
@@ -119,22 +117,19 @@ fn renew_cfd() {
 
     let payouts = vec![
         Payout::new(
-            vec![vec![0u8]; 20]
-                .into_iter()
-                .zip(announcement.nonce_pks())
-                .collect(),
+            Interval::new(0, 10_000).unwrap(),
+            announcement.nonce_pks(),
             Amount::from_btc(2.0).unwrap(),
             Amount::ZERO,
         ),
         Payout::new(
-            vec![vec![1u8]; 20]
-                .into_iter()
-                .zip(announcement.nonce_pks())
-                .collect(),
+            Interval::new(10_001, 20_000).unwrap(),
+            announcement.nonce_pks(),
             Amount::ZERO,
             Amount::from_btc(2.0).unwrap(),
         ),
-    ];
+    ]
+    .concat();
 
     let refund_timelock = 0;
 
@@ -159,22 +154,19 @@ fn renew_cfd() {
 
     let payouts = vec![
         Payout::new(
-            vec![vec![0u8]; 20]
-                .into_iter()
-                .zip(announcement.nonce_pks())
-                .collect(),
+            Interval::new(0, 10_000).unwrap(),
+            announcement.nonce_pks(),
             Amount::from_btc(1.5).unwrap(),
             Amount::from_btc(0.5).unwrap(),
         ),
         Payout::new(
-            vec![vec![1u8]; 20]
-                .into_iter()
-                .zip(announcement.nonce_pks())
-                .collect(),
+            Interval::new(10_001, 20_000).unwrap(),
+            announcement.nonce_pks(),
             Amount::from_btc(0.5).unwrap(),
             Amount::from_btc(1.5).unwrap(),
         ),
-    ];
+    ]
+    .concat();
 
     let maker_cfd_txs = renew_cfd_transactions(
         maker_cfd_txs.lock,
diff --git a/daemon/src/model/cfd.rs b/daemon/src/model/cfd.rs
index ad90f4e..2646e12 100644
--- a/daemon/src/model/cfd.rs
+++ b/daemon/src/model/cfd.rs
@@ -597,6 +597,7 @@ pub struct FinalizedCfd {
 
     pub lock: PartiallySignedTransaction,
     pub commit: (Transaction, EcdsaAdaptorSignature),
+    #[allow(clippy::type_complexity)]
     pub cets: Vec<(
         Transaction,
         EcdsaAdaptorSignature,
diff --git a/daemon/src/setup_contract_actor.rs b/daemon/src/setup_contract_actor.rs
index f3de698..edcd24e 100644
--- a/daemon/src/setup_contract_actor.rs
+++ b/daemon/src/setup_contract_actor.rs
@@ -219,6 +219,7 @@ impl AllParams {
     }
 }
 
+#[allow(clippy::type_complexity)]
 fn verify_cets(
     oracle_pk: &schnorrsig::PublicKey,
     other: &PartyParams,
@@ -240,7 +241,7 @@ fn verify_cets(
         verify_cet_encsig(
             tx,
             other_encsig,
-            &msg_nonce_pairs,
+            msg_nonce_pairs,
             &other.identity_pk,
             oracle_pk,
             commit_desc,