diff --git a/swap/src/protocol/bob/state.rs b/swap/src/protocol/bob/state.rs
index 4033a81f..4608bf86 100644
--- a/swap/src/protocol/bob/state.rs
+++ b/swap/src/protocol/bob/state.rs
@@ -152,7 +152,6 @@ impl State0 {
             S_a_monero: msg.S_a_monero,
             S_a_bitcoin: msg.S_a_bitcoin,
             v,
-            btc: self.btc,
             xmr: self.xmr,
             cancel_timelock: self.cancel_timelock,
             punish_timelock: self.punish_timelock,
@@ -173,8 +172,6 @@ pub struct State1 {
     S_a_monero: monero::PublicKey,
     S_a_bitcoin: bitcoin::PublicKey,
     v: monero::PrivateViewKey,
-    #[serde(with = "::bitcoin::util::amount::serde::as_sat")]
-    btc: bitcoin::Amount,
     xmr: monero::Amount,
     cancel_timelock: CancelTimelock,
     punish_timelock: PunishTimelock,
@@ -211,7 +208,6 @@ impl State1 {
             S_a_monero: self.S_a_monero,
             S_a_bitcoin: self.S_a_bitcoin,
             v: self.v,
-            btc: self.btc,
             xmr: self.xmr,
             cancel_timelock: self.cancel_timelock,
             punish_timelock: self.punish_timelock,
@@ -234,8 +230,6 @@ pub struct State2 {
     S_a_monero: monero::PublicKey,
     S_a_bitcoin: bitcoin::PublicKey,
     v: monero::PrivateViewKey,
-    #[serde(with = "::bitcoin::util::amount::serde::as_sat")]
-    btc: bitcoin::Amount,
     xmr: monero::Amount,
     cancel_timelock: CancelTimelock,
     punish_timelock: PunishTimelock,
@@ -280,13 +274,11 @@ impl State2 {
             S_a_monero: self.S_a_monero,
             S_a_bitcoin: self.S_a_bitcoin,
             v: self.v,
-            btc: self.btc,
             xmr: self.xmr,
             cancel_timelock: self.cancel_timelock,
             punish_timelock: self.punish_timelock,
             refund_address: self.refund_address,
             redeem_address: self.redeem_address,
-            punish_address: self.punish_address,
             tx_lock: self.tx_lock,
             tx_cancel_sig_a: self.tx_cancel_sig_a,
             tx_refund_encsig: self.tx_refund_encsig,
@@ -303,14 +295,11 @@ pub struct State3 {
     S_a_monero: monero::PublicKey,
     S_a_bitcoin: bitcoin::PublicKey,
     v: monero::PrivateViewKey,
-    #[serde(with = "::bitcoin::util::amount::serde::as_sat")]
-    btc: bitcoin::Amount,
     xmr: monero::Amount,
     cancel_timelock: CancelTimelock,
     punish_timelock: PunishTimelock,
     refund_address: bitcoin::Address,
     redeem_address: bitcoin::Address,
-    punish_address: bitcoin::Address,
     tx_lock: bitcoin::TxLock,
     tx_cancel_sig_a: Signature,
     tx_refund_encsig: bitcoin::EncryptedSignature,
@@ -346,16 +335,12 @@ impl State3 {
             A: self.A,
             b: self.b,
             s_b: self.s_b,
-            S_a_monero: self.S_a_monero,
             S_a_bitcoin: self.S_a_bitcoin,
             v: self.v,
-            btc: self.btc,
-            xmr: self.xmr,
             cancel_timelock: self.cancel_timelock,
             punish_timelock: self.punish_timelock,
             refund_address: self.refund_address,
             redeem_address: self.redeem_address,
-            punish_address: self.punish_address,
             tx_lock: self.tx_lock,
             tx_cancel_sig_a: self.tx_cancel_sig_a,
             tx_refund_encsig: self.tx_refund_encsig,
@@ -380,16 +365,12 @@ impl State3 {
             A: self.A,
             b: self.b.clone(),
             s_b: self.s_b,
-            S_a_monero: self.S_a_monero,
             S_a_bitcoin: self.S_a_bitcoin,
             v: self.v,
-            btc: self.btc,
-            xmr: self.xmr,
             cancel_timelock: self.cancel_timelock,
             punish_timelock: self.punish_timelock,
             refund_address: self.refund_address.clone(),
             redeem_address: self.redeem_address.clone(),
-            punish_address: self.punish_address.clone(),
             tx_lock: self.tx_lock.clone(),
             tx_cancel_sig_a: self.tx_cancel_sig_a.clone(),
             tx_refund_encsig: self.tx_refund_encsig.clone(),
@@ -420,17 +401,12 @@ pub struct State4 {
     A: bitcoin::PublicKey,
     b: bitcoin::SecretKey,
     s_b: cross_curve_dleq::Scalar,
-    S_a_monero: monero::PublicKey,
     S_a_bitcoin: bitcoin::PublicKey,
     v: monero::PrivateViewKey,
-    #[serde(with = "::bitcoin::util::amount::serde::as_sat")]
-    btc: bitcoin::Amount,
-    xmr: monero::Amount,
     cancel_timelock: CancelTimelock,
     punish_timelock: PunishTimelock,
     refund_address: bitcoin::Address,
     redeem_address: bitcoin::Address,
-    punish_address: bitcoin::Address,
     tx_lock: bitcoin::TxLock,
     tx_cancel_sig_a: Signature,
     tx_refund_encsig: bitcoin::EncryptedSignature,
@@ -514,23 +490,10 @@ impl State4 {
         let s_a = monero::private_key_from_secp256k1_scalar(s_a.into());
 
         Ok(State5 {
-            A: self.A,
-            b: self.b.clone(),
             s_a,
             s_b: self.s_b,
-            S_a_monero: self.S_a_monero,
-            S_a_bitcoin: self.S_a_bitcoin,
             v: self.v,
-            btc: self.btc,
-            xmr: self.xmr,
-            cancel_timelock: self.cancel_timelock,
-            punish_timelock: self.punish_timelock,
-            refund_address: self.refund_address.clone(),
-            redeem_address: self.redeem_address.clone(),
-            punish_address: self.punish_address.clone(),
             tx_lock: self.tx_lock.clone(),
-            tx_refund_encsig: self.tx_refund_encsig.clone(),
-            tx_cancel_sig: self.tx_cancel_sig_a.clone(),
             monero_wallet_restore_blockheight: self.monero_wallet_restore_blockheight,
         })
     }
@@ -602,25 +565,11 @@ impl State4 {
 
 #[derive(Debug, Clone, Deserialize, Serialize, PartialEq)]
 pub struct State5 {
-    A: bitcoin::PublicKey,
-    b: bitcoin::SecretKey,
     #[serde(with = "monero_private_key")]
     s_a: monero::PrivateKey,
     s_b: cross_curve_dleq::Scalar,
-    S_a_monero: monero::PublicKey,
-    S_a_bitcoin: bitcoin::PublicKey,
     v: monero::PrivateViewKey,
-    #[serde(with = "::bitcoin::util::amount::serde::as_sat")]
-    btc: bitcoin::Amount,
-    xmr: monero::Amount,
-    cancel_timelock: CancelTimelock,
-    punish_timelock: PunishTimelock,
-    refund_address: bitcoin::Address,
-    redeem_address: bitcoin::Address,
-    punish_address: bitcoin::Address,
     tx_lock: bitcoin::TxLock,
-    tx_refund_encsig: bitcoin::EncryptedSignature,
-    tx_cancel_sig: Signature,
     monero_wallet_restore_blockheight: u32,
 }