diff --git a/hypersync-format/src/types/mod.rs b/hypersync-format/src/types/mod.rs
index 5edc3c4..f3d3eff 100644
--- a/hypersync-format/src/types/mod.rs
+++ b/hypersync-format/src/types/mod.rs
@@ -72,6 +72,22 @@ pub struct Block<Tx> {
     pub transactions: Vec<Tx>,
 }
 
+/// Deserialize a Quantity that may be null or missing, defaulting to zero.
+fn deserialize_quantity_or_null<'de, D>(deserializer: D) -> Result<Quantity, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    Ok(Option::<Quantity>::deserialize(deserializer)?.unwrap_or_default())
+}
+
+/// Deserialize Data that may be null or missing, defaulting to empty.
+fn deserialize_data_or_null<'de, D>(deserializer: D) -> Result<Data, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    Ok(Option::<Data>::deserialize(deserializer)?.unwrap_or_default())
+}
+
 /// Evm transaction object
 ///
 /// See ethereum rpc spec for the meaning of fields
@@ -85,10 +101,14 @@ pub struct Transaction {
     pub gas: Quantity,
     pub gas_price: Option<Quantity>,
     pub hash: Hash,
+    // In the Tempo blockchain, transactions don't need to have an input, and don't if they are of type 0x76
+    #[serde(default, deserialize_with = "deserialize_data_or_null")]
     pub input: Data,
     pub nonce: Quantity,
     pub to: Option<Address>,
     pub transaction_index: TransactionIndex,
+    // In the Tempo blockchain, transactions don't need to have an input, and don't if they are of type 0x76
+    #[serde(default, deserialize_with = "deserialize_quantity_or_null")]
     pub value: Quantity,
     #[serde(rename = "type")]
     pub type_: Option<TransactionType>,
@@ -339,6 +359,144 @@ mod tests {
 
     use super::*;
 
+    // Helper that builds a minimal valid Transaction JSON, overriding specific fields.
+    fn minimal_transaction_json() -> Value {
+        json!({
+            "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+            "blockNumber": "0x1",
+            "gas": "0x5208",
+            "hash": "0x0000000000000000000000000000000000000000000000000000000000000001",
+            "input": "0x",
+            "nonce": "0x0",
+            "transactionIndex": "0x0",
+            "value": "0x0"
+        })
+    }
+
+    // --- Tests for deserialize_data_or_null (Transaction.input) ---
+
+    #[test]
+    fn transaction_input_null_deserializes_to_empty_data() {
+        let mut json = minimal_transaction_json();
+        json["input"] = json!(null);
+        let tx: Transaction = serde_json::from_value(json).expect("should handle null input");
+        assert_eq!(tx.input, Data::default(), "null input should produce empty Data");
+    }
+
+    #[test]
+    fn transaction_input_missing_deserializes_to_empty_data() {
+        let mut json = minimal_transaction_json();
+        json.as_object_mut().unwrap().remove("input");
+        let tx: Transaction = serde_json::from_value(json).expect("should handle missing input");
+        assert_eq!(tx.input, Data::default(), "missing input should produce empty Data");
+    }
+
+    #[test]
+    fn transaction_input_present_deserializes_correctly() {
+        let mut json = minimal_transaction_json();
+        json["input"] = json!("0xdeadbeef");
+        let tx: Transaction = serde_json::from_value(json).expect("should handle present input");
+        assert_eq!(
+            tx.input,
+            Data::from(vec![0xde, 0xad, 0xbe, 0xef]),
+            "input should parse hex bytes correctly"
+        );
+    }
+
+    #[test]
+    fn transaction_input_empty_hex_deserializes_to_empty_data() {
+        let mut json = minimal_transaction_json();
+        json["input"] = json!("0x");
+        let tx: Transaction = serde_json::from_value(json).expect("should handle empty hex input");
+        assert_eq!(tx.input, Data::default(), "empty hex input should produce empty Data");
+    }
+
+    // --- Tests for deserialize_quantity_or_null (Transaction.value) ---
+
+    #[test]
+    fn transaction_value_null_deserializes_to_zero_quantity() {
+        let mut json = minimal_transaction_json();
+        json["value"] = json!(null);
+        let tx: Transaction = serde_json::from_value(json).expect("should handle null value");
+        assert_eq!(tx.value, Quantity::default(), "null value should produce zero Quantity");
+    }
+
+    #[test]
+    fn transaction_value_missing_deserializes_to_zero_quantity() {
+        let mut json = minimal_transaction_json();
+        json.as_object_mut().unwrap().remove("value");
+        let tx: Transaction = serde_json::from_value(json).expect("should handle missing value");
+        assert_eq!(tx.value, Quantity::default(), "missing value should produce zero Quantity");
+    }
+
+    #[test]
+    fn transaction_value_present_deserializes_correctly() {
+        let mut json = minimal_transaction_json();
+        json["value"] = json!("0xde0b6b3a7640000");
+        let tx: Transaction = serde_json::from_value(json).expect("should handle present value");
+        assert_eq!(
+            tx.value,
+            Quantity::from(0xde0b6b3a7640000u64),
+            "value should parse hex quantity correctly"
+        );
+    }
+
+    #[test]
+    fn transaction_value_zero_hex_deserializes_to_zero_quantity() {
+        let mut json = minimal_transaction_json();
+        json["value"] = json!("0x0");
+        let tx: Transaction = serde_json::from_value(json).expect("should handle zero hex value");
+        assert_eq!(tx.value, Quantity::default(), "0x0 value should equal zero Quantity");
+    }
+
+    // --- Tests for the Tempo blockchain type 0x76 case (both fields null/missing) ---
+
+    #[test]
+    fn transaction_tempo_type_both_input_and_value_null() {
+        // Tempo blockchain: transactions of type 0x76 have no input and no value
+        let mut json = minimal_transaction_json();
+        json["input"] = json!(null);
+        json["value"] = json!(null);
+        json["type"] = json!("0x76");
+        let tx: Transaction =
+            serde_json::from_value(json).expect("should handle Tempo type 0x76 with null fields");
+        assert_eq!(tx.input, Data::default(), "null input should produce empty Data");
+        assert_eq!(tx.value, Quantity::default(), "null value should produce zero Quantity");
+        assert_eq!(
+            tx.type_,
+            Some(TransactionType::from(0x76u8)),
+            "type should be 0x76"
+        );
+    }
+
+    #[test]
+    fn transaction_tempo_type_both_input_and_value_missing() {
+        let mut json = minimal_transaction_json();
+        {
+            let obj = json.as_object_mut().unwrap();
+            obj.remove("input");
+            obj.remove("value");
+            obj.insert("type".to_string(), json!("0x76"));
+        }
+        let tx: Transaction = serde_json::from_value(json)
+            .expect("should handle Tempo type 0x76 with missing fields");
+        assert_eq!(tx.input, Data::default(), "missing input should produce empty Data");
+        assert_eq!(tx.value, Quantity::default(), "missing value should produce zero Quantity");
+    }
+
+    // --- Regression: standard transaction with all fields present still works ---
+
+    #[test]
+    fn transaction_standard_fields_roundtrip() {
+        let json = minimal_transaction_json();
+        let tx: Transaction =
+            serde_json::from_value(json.clone()).expect("standard transaction should deserialize");
+        assert_eq!(tx.input, Data::default());
+        assert_eq!(tx.value, Quantity::default());
+        assert_eq!(tx.gas, Quantity::from(0x5208u64));
+        assert_eq!(tx.nonce, Quantity::default());
+    }
+
     #[test]
     fn handle_zeta_null_effective_gas_price() {
         // real world breaking example on zeta
@@ -383,4 +541,4 @@ mod tests {
         let _: TransactionReceipt =
             serde_json::from_value(json).expect("should handle undefined effective gas price");
     }
-}
+}
\ No newline at end of file
diff --git a/hypersync-format/test-data/tempo_transaction.json b/hypersync-format/test-data/tempo_transaction.json
new file mode 100644
index 0000000..b431dc6
--- /dev/null
+++ b/hypersync-format/test-data/tempo_transaction.json
@@ -0,0 +1,14 @@
+{
+  "blockHash": "0xa1b2c3d4e5f60000000000000000000000000000000000000000000000000000",
+  "blockNumber": "0x1",
+  "from": "0xae40b5aa27e47b2992badd63cb8c7f87e605d6a4",
+  "gas": "0x5208",
+  "gasPrice": "0x3b9aca00",
+  "hash": "0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef",
+  "input": null,
+  "nonce": "0x0",
+  "to": "0x735b14bb79463307aacbed86daf3322b1e6226ab",
+  "transactionIndex": "0x0",
+  "value": null,
+  "type": "0x76"
+}
\ No newline at end of file
diff --git a/hypersync-format/tests/deserialize_json.rs b/hypersync-format/tests/deserialize_json.rs
index ac9c25d..579331b 100644
--- a/hypersync-format/tests/deserialize_json.rs
+++ b/hypersync-format/tests/deserialize_json.rs
@@ -91,3 +91,27 @@ fn test_tron_block_without_tx_deserialize() {
     let file = read_json_file("tron_block_without_tx.json");
     let _: Block<Hash> = deserialize_with_path(&file).unwrap();
 }
+
+#[test]
+fn test_tempo_transaction_null_input_and_value() {
+    // Tempo blockchain: transactions of type 0x76 have null input and null value fields.
+    // Verifies that deserialize_data_or_null and deserialize_quantity_or_null handle null correctly.
+    let file = read_json_file("tempo_transaction.json");
+    let tx: Transaction = serde_json::from_str(&file)
+        .expect("should deserialize Tempo transaction with null input and value");
+    assert_eq!(
+        tx.input,
+        Data::default(),
+        "null input should produce empty Data"
+    );
+    assert_eq!(
+        tx.value,
+        Quantity::default(),
+        "null value should produce zero Quantity"
+    );
+    assert_eq!(
+        tx.type_,
+        Some(TransactionType::from(0x76u8)),
+        "type should be 0x76"
+    );
+}
\ No newline at end of file