diff --git a/Code/itf/src/driver.rs b/Code/itf/src/driver.rs
index 99ce4faf2..9fd45515c 100644
--- a/Code/itf/src/driver.rs
+++ b/Code/itf/src/driver.rs
@@ -11,6 +11,16 @@ use crate::{Address, Height, Proposal, Round, Timeout, Value, Vote, Weight};
 pub struct State {
     #[serde(rename = "line28Test::N4F1::system")]
     pub system: HashMap<Address, NodeState>,
+
+    #[serde(rename = "line28Test::N4F1::_hist")]
+    pub history: HistoryEntry,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Deserialize)]
+pub struct HistoryEntry {
+    pub validator: Address,
+    pub input: DriverInput,
+    pub output: ConsensusOutput,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Deserialize)]
@@ -52,3 +62,27 @@ pub struct DriverState {
     #[serde(rename = "nextValueToPropose")]
     pub next_value_to_propose: Value,
 }
+
+#[derive(Clone, Debug, PartialEq, Eq, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct DriverInput {
+    pub name: String,
+    pub proposal: Proposal,
+    pub vote: Vote,
+    pub timeout: Timeout,
+    pub cs_input: ConsensusInput,
+    pub next_value_to_propose: Value,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ConsensusOutput {
+    pub name: String,
+    pub proposal: Proposal,
+    #[serde(rename = "voteMessage")]
+    pub vote: Vote,
+    pub timeout: Timeout,
+    pub decided: Value,
+    #[serde(with = "As::<Integer>")]
+    pub skip_round: Round,
+}
diff --git a/Code/itf/tests/driver.rs b/Code/itf/tests/driver.rs
index 381c92b2f..24512781d 100644
--- a/Code/itf/tests/driver.rs
+++ b/Code/itf/tests/driver.rs
@@ -22,12 +22,16 @@ fn line28() {
         .matcher("\\bline28Test")
         .build();
 
+    std::mem::forget(temp_dir);
+
     for json_fixture in trace_generator.generate() {
         println!("Parsing {json_fixture:?}");
 
         let json = std::fs::read_to_string(&json_fixture).unwrap();
         let trace = itf::trace_from_str::<State>(&json).unwrap();
 
-        dbg!(trace);
+        println!("Trace has {} states", trace.states.len());
+
+        dbg!(&trace.states[0..2]);
     }
 }