diff --git a/crates/autopilot-svm/src/domain/auction.rs b/crates/autopilot-svm/src/domain/auction.rs
index c7c871d717..c3f1bad9da 100644
--- a/crates/autopilot-svm/src/domain/auction.rs
+++ b/crates/autopilot-svm/src/domain/auction.rs
@@ -3,7 +3,7 @@
 
 use {
     crate::run_loop::AuctionInfo,
-    chain_types::solana::{IntentHash, Pubkey},
+    chain_types::solana::{AppData, IntentHash, Pubkey},
 };
 
 /// Whether the order sells an exact amount or buys an exact amount.
@@ -30,6 +30,10 @@ pub struct Order {
     pub valid_to: u32,
     pub kind: OrderKind,
     pub partially_fillable: bool,
+    /// The 32-byte app-data hash of the on-chain intent. An input to the
+    /// intent hash (the uid), so the driver needs it verbatim to rebuild the
+    /// intent at settlement.
+    pub app_data: AppData,
     pub order_pda: Pubkey,
 }
 
@@ -71,6 +75,7 @@ mod tests {
             valid_to: 42,
             kind: OrderKind::Sell,
             partially_fillable: false,
+            app_data: chain_types::solana::AppData([8; 32]),
             order_pda: chain_types::solana::Pubkey([7; 32]),
         }
     }
diff --git a/crates/autopilot-svm/src/infra/db.rs b/crates/autopilot-svm/src/infra/db.rs
index d905c791cf..6438454f15 100644
--- a/crates/autopilot-svm/src/infra/db.rs
+++ b/crates/autopilot-svm/src/infra/db.rs
@@ -4,7 +4,7 @@ use {
     crate::domain::auction::{Auction, Order, OrderKind},
     anyhow::{Context, Result, bail},
     bigdecimal::{BigDecimal, ToPrimitive},
-    chain_types::solana::{IntentHash, Pubkey},
+    chain_types::solana::{AppData, IntentHash, Pubkey},
     database::byte_array::ByteArray,
     sqlx::PgExecutor,
 };
@@ -23,6 +23,7 @@ pub struct OrderRow {
     pub valid_to: i64,
     pub kind: String,
     pub partially_fillable: bool,
+    pub app_data: ByteArray<32>,
     pub order_pda: ByteArray<32>,
 }
 
@@ -35,7 +36,7 @@ pub async fn open_orders(ex: impl PgExecutor<'_>, now_unix: i64) -> Result<Vec<O
     const QUERY: &str = r#"
 SELECT o.uid, o.owner, o.sell_token, o.buy_token, o.sell_token_account,
        o.buy_token_account, o.sell_amount, o.buy_amount, o.valid_to,
-       o.kind::text AS kind, o.partially_fillable, o.order_pda
+       o.kind::text AS kind, o.partially_fillable, o.app_data, o.order_pda
 FROM solana.orders o
 LEFT JOIN solana.order_pda p ON p.order_uid = o.uid
 WHERE o.valid_to >= $1
@@ -145,6 +146,7 @@ impl TryFrom<OrderRow> for Order {
                 other => bail!("unknown order kind {other:?}"),
             },
             partially_fillable: row.partially_fillable,
+            app_data: AppData(row.app_data.0),
             order_pda: Pubkey(row.order_pda.0),
         })
     }
@@ -179,6 +181,7 @@ mod tests {
             valid_to: 42,
             kind: "sell".to_owned(),
             partially_fillable: false,
+            app_data: ByteArray([8; 32]),
             order_pda: ByteArray([7; 32]),
         }
     }
diff --git a/crates/autopilot-svm/src/infra/driver/dto.rs b/crates/autopilot-svm/src/infra/driver/dto.rs
index 6e68a2baaa..68669fa537 100644
--- a/crates/autopilot-svm/src/infra/driver/dto.rs
+++ b/crates/autopilot-svm/src/infra/driver/dto.rs
@@ -6,7 +6,7 @@
 
 use {
     crate::domain::auction,
-    chain_types::solana::{IntentHash, Pubkey, Signature},
+    chain_types::solana::{AppData, IntentHash, Pubkey, Signature},
     serde::{Deserialize, Serialize},
     serde_with::{DisplayFromStr, serde_as},
     std::collections::HashMap,
@@ -49,6 +49,10 @@ pub struct Order {
     pub valid_to: u32,
     pub kind: Kind,
     pub partially_fillable: bool,
+    /// The 32-byte app-data hash of the on-chain intent, `0x`-hex on the
+    /// wire like the uid.
+    #[serde_as(as = "DisplayFromStr")]
+    pub app_data: AppData,
     #[serde_as(as = "DisplayFromStr")]
     pub order_pda: Pubkey,
 }
@@ -78,6 +82,7 @@ impl From<&auction::Order> for Order {
                 auction::OrderKind::Buy => Kind::Buy,
             },
             partially_fillable: order.partially_fillable,
+            app_data: order.app_data,
             order_pda: order.order_pda,
         }
     }
@@ -156,6 +161,7 @@ mod tests {
             valid_to: 42,
             kind: auction::OrderKind::Sell,
             partially_fillable: false,
+            app_data: AppData([0x88; 32]),
             order_pda: Pubkey([0x77; 32]),
         }
     }
@@ -179,6 +185,10 @@ mod tests {
         // u64::MAX survives as a decimal string.
         assert_eq!(json["orders"][0]["sellAmount"], "18446744073709551615");
         assert_eq!(json["orders"][0]["kind"], "sell");
+        assert_eq!(
+            json["orders"][0]["appData"],
+            "0x8888888888888888888888888888888888888888888888888888888888888888"
+        );
         // Base58 of 32 bytes of 0x22, precomputed so this does not just
         // compare the Display impl against itself.
         assert_eq!(
diff --git a/crates/chain-types/src/solana.rs b/crates/chain-types/src/solana.rs
index 23a1c14fbc..64bd7754ac 100644
--- a/crates/chain-types/src/solana.rs
+++ b/crates/chain-types/src/solana.rs
@@ -35,6 +35,29 @@ impl FromStr for IntentHash {
     }
 }
 
+/// The 32-byte app-data hash of an order intent. An input to the intent
+/// hash, so settlement encoding must carry it verbatim.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct AppData(pub [u8; 32]);
+
+/// `0x`-prefixed hex, the wire and log rendering of an app-data hash.
+impl fmt::Display for AppData {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let mut buffer = const_hex::Buffer::<32, true>::new();
+        f.write_str(buffer.format(&self.0))
+    }
+}
+
+impl FromStr for AppData {
+    type Err = const_hex::FromHexError;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let mut bytes = [0u8; 32];
+        const_hex::decode_to_slice(s.strip_prefix("0x").unwrap_or(s), &mut bytes)?;
+        Ok(Self(bytes))
+    }
+}
+
 /// Base58, the canonical Solana address rendering.
 impl fmt::Display for Pubkey {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {