diff --git a/tap_core/src/adapters/mock/executor_mock.rs b/tap_core/src/adapters/mock/executor_mock.rs
index 7a807c33..72e08fca 100644
--- a/tap_core/src/adapters/mock/executor_mock.rs
+++ b/tap_core/src/adapters/mock/executor_mock.rs
@@ -5,8 +5,8 @@ use crate::adapters::escrow_adapter::EscrowAdapter;
 use crate::adapters::receipt_storage_adapter::{
     safe_truncate_receipts, ReceiptDelete, ReceiptRead, ReceiptStore, StoredReceipt,
 };
-use crate::checks::TimestampCheck;
 use crate::eip_712_signed_message::MessageId;
+use crate::tap_receipt::checks::TimestampCheck;
 use crate::tap_receipt::ReceivedReceipt;
 use crate::{
     adapters::rav_storage_adapter::{RAVRead, RAVStore},
diff --git a/tap_core/src/adapters/test/escrow_adapter_test.rs b/tap_core/src/adapters/test/escrow_adapter_test.rs
index 18c28fd5..c088c897 100644
--- a/tap_core/src/adapters/test/escrow_adapter_test.rs
+++ b/tap_core/src/adapters/test/escrow_adapter_test.rs
@@ -13,7 +13,7 @@ mod escrow_adapter_unit_test {
 
     use crate::{
         adapters::{escrow_adapter::EscrowAdapter, executor_mock::ExecutorMock},
-        checks::TimestampCheck,
+        tap_receipt::checks::TimestampCheck,
     };
 
     #[fixture]
diff --git a/tap_core/src/adapters/test/rav_storage_adapter_test.rs b/tap_core/src/adapters/test/rav_storage_adapter_test.rs
index 3b51999b..324c596c 100644
--- a/tap_core/src/adapters/test/rav_storage_adapter_test.rs
+++ b/tap_core/src/adapters/test/rav_storage_adapter_test.rs
@@ -13,7 +13,7 @@ mod rav_storage_adapter_unit_test {
     use ethers::signers::{LocalWallet, MnemonicBuilder};
     use rstest::*;
 
-    use crate::checks::TimestampCheck;
+    use crate::tap_receipt::checks::TimestampCheck;
     use crate::{
         adapters::{
             executor_mock::ExecutorMock,
diff --git a/tap_core/src/adapters/test/receipt_storage_adapter_test.rs b/tap_core/src/adapters/test/receipt_storage_adapter_test.rs
index 35073488..383827fd 100644
--- a/tap_core/src/adapters/test/receipt_storage_adapter_test.rs
+++ b/tap_core/src/adapters/test/receipt_storage_adapter_test.rs
@@ -9,7 +9,7 @@ mod receipt_storage_adapter_unit_test {
     use std::str::FromStr;
     use std::sync::{Arc, RwLock};
 
-    use crate::checks::TimestampCheck;
+    use crate::tap_receipt::checks::TimestampCheck;
     use crate::{
         adapters::{executor_mock::ExecutorMock, receipt_storage_adapter::ReceiptStore},
         eip_712_signed_message::EIP712SignedMessage,
diff --git a/tap_core/src/lib.rs b/tap_core/src/lib.rs
index fd61aabc..af67e6be 100644
--- a/tap_core/src/lib.rs
+++ b/tap_core/src/lib.rs
@@ -12,7 +12,6 @@ use alloy_sol_types::eip712_domain;
 use thiserror::Error;
 
 pub mod adapters;
-pub mod checks;
 pub mod eip_712_signed_message;
 mod error;
 pub mod receipt_aggregate_voucher;
diff --git a/tap_core/src/tap_manager/manager.rs b/tap_core/src/tap_manager/manager.rs
index c332e969..fc3512f8 100644
--- a/tap_core/src/tap_manager/manager.rs
+++ b/tap_core/src/tap_manager/manager.rs
@@ -10,11 +10,11 @@ use crate::{
         rav_storage_adapter::{RAVRead, RAVStore},
         receipt_storage_adapter::{ReceiptDelete, ReceiptRead, ReceiptStore},
     },
-    checks::Checks,
     receipt_aggregate_voucher::ReceiptAggregateVoucher,
     tap_receipt::{
-        CategorizedReceiptsWithState, Failed, ReceiptAuditor, ReceiptWithId, ReceiptWithState,
-        ReceivedReceipt, Reserved,
+        checks::{BatchTimestampCheck, CheckBatch, Checks, UniqueCheck},
+        CategorizedReceiptsWithState, Failed, ReceiptAuditor, ReceiptWithState, ReceivedReceipt,
+        Reserved,
     },
     Error,
 };
@@ -141,11 +141,21 @@ where
             mut reserved_receipts,
         } = received_receipts.into();
 
-        for received_receipt in checking_receipts.into_iter() {
-            let ReceiptWithId {
-                receipt,
-                receipt_id: _,
-            } = received_receipt;
+        let checking_receipts = checking_receipts
+            .into_iter()
+            .map(|receipt| receipt.receipt)
+            .collect::<Vec<_>>();
+
+        // check for timestamp
+        let (checking_receipts, already_failed) =
+            BatchTimestampCheck(min_timestamp_ns).check_batch(checking_receipts);
+        failed_receipts.extend(already_failed);
+
+        // check for uniqueness
+        let (checking_receipts, already_failed) = UniqueCheck.check_batch(checking_receipts);
+        failed_receipts.extend(already_failed);
+
+        for receipt in checking_receipts.into_iter() {
             let receipt = receipt.finalize_receipt_checks(&self.checks).await;
 
             match receipt {
diff --git a/tap_core/src/tap_manager/test/manager_test.rs b/tap_core/src/tap_manager/test/manager_test.rs
index d7b3c872..080cbd40 100644
--- a/tap_core/src/tap_manager/test/manager_test.rs
+++ b/tap_core/src/tap_manager/test/manager_test.rs
@@ -17,10 +17,12 @@ use crate::{
         executor_mock::{EscrowStorage, ExecutorMock, QueryAppraisals},
         receipt_storage_adapter::ReceiptRead,
     },
-    checks::{mock::get_full_list_of_checks, Checks, TimestampCheck},
     eip_712_signed_message::EIP712SignedMessage,
     get_current_timestamp_u64_ns, tap_eip712_domain,
-    tap_receipt::Receipt,
+    tap_receipt::{
+        checks::{mock::get_full_list_of_checks, Checks, TimestampCheck},
+        Receipt,
+    },
 };
 
 #[fixture]
diff --git a/tap_core/src/checks/mod.rs b/tap_core/src/tap_receipt/checks.rs
similarity index 72%
rename from tap_core/src/checks/mod.rs
rename to tap_core/src/tap_receipt/checks.rs
index 7a50c969..5205e8cd 100644
--- a/tap_core/src/checks/mod.rs
+++ b/tap_core/src/tap_receipt/checks.rs
@@ -3,10 +3,13 @@
 
 use crate::tap_receipt::{Checking, ReceiptError, ReceiptWithState};
 use std::{
+    collections::HashSet,
     ops::Deref,
     sync::{Arc, RwLock},
 };
 
+use super::Failed;
+
 pub type ReceiptCheck = Arc<dyn Check + Sync + Send>;
 
 pub type CheckResult = anyhow::Result<()>;
@@ -32,9 +35,14 @@ pub trait Check {
     async fn check(&self, receipt: &ReceiptWithState<Checking>) -> CheckResult;
 }
 
-#[async_trait::async_trait]
 pub trait CheckBatch {
-    async fn check_batch(&self, receipts: &[ReceiptWithState<Checking>]) -> Vec<CheckResult>;
+    fn check_batch(
+        &self,
+        receipts: Vec<ReceiptWithState<Checking>>,
+    ) -> (
+        Vec<ReceiptWithState<Checking>>,
+        Vec<ReceiptWithState<Failed>>,
+    );
 }
 
 #[derive(Debug)]
@@ -70,6 +78,59 @@ impl Check for TimestampCheck {
     }
 }
 
+/// Timestamp Check verifies if the receipt is **greater or equal** than the minimum timestamp provided.
+pub struct BatchTimestampCheck(pub u64);
+
+impl CheckBatch for BatchTimestampCheck {
+    fn check_batch(
+        &self,
+        receipts: Vec<ReceiptWithState<Checking>>,
+    ) -> (
+        Vec<ReceiptWithState<Checking>>,
+        Vec<ReceiptWithState<Failed>>,
+    ) {
+        let (mut checking, mut failed) = (vec![], vec![]);
+        for receipt in receipts.into_iter() {
+            let receipt_timestamp_ns = receipt.signed_receipt().message.timestamp_ns;
+            let min_timestamp_ns = self.0;
+            if receipt_timestamp_ns >= min_timestamp_ns {
+                checking.push(receipt);
+            } else {
+                failed.push(receipt.perform_state_error(ReceiptError::InvalidTimestamp {
+                    received_timestamp: receipt_timestamp_ns,
+                    timestamp_min: min_timestamp_ns,
+                }));
+            }
+        }
+        (checking, failed)
+    }
+}
+
+pub struct UniqueCheck;
+
+impl CheckBatch for UniqueCheck {
+    fn check_batch(
+        &self,
+        receipts: Vec<ReceiptWithState<Checking>>,
+    ) -> (
+        Vec<ReceiptWithState<Checking>>,
+        Vec<ReceiptWithState<Failed>>,
+    ) {
+        let mut signatures: HashSet<ethers::types::Signature> = HashSet::new();
+        let (mut checking, mut failed) = (vec![], vec![]);
+
+        for received_receipt in receipts.into_iter() {
+            let signature = received_receipt.signed_receipt.signature;
+            if signatures.insert(signature) {
+                checking.push(received_receipt);
+            } else {
+                failed.push(received_receipt.perform_state_error(ReceiptError::NonUniqueReceipt));
+            }
+        }
+        (checking, failed)
+    }
+}
+
 #[cfg(feature = "mock")]
 pub mod mock {
 
@@ -96,26 +157,6 @@ pub mod mock {
         ]
     }
 
-    struct UniqueCheck;
-
-    #[async_trait::async_trait]
-    impl CheckBatch for UniqueCheck {
-        async fn check_batch(&self, receipts: &[ReceiptWithState<Checking>]) -> Vec<CheckResult> {
-            let mut signatures: HashSet<ethers::types::Signature> = HashSet::new();
-            let mut results = Vec::new();
-
-            for received_receipt in receipts {
-                let signature = received_receipt.signed_receipt.signature;
-                if signatures.insert(signature) {
-                    results.push(Ok(()));
-                } else {
-                    results.push(Err(ReceiptError::NonUniqueReceipt.into()));
-                }
-            }
-            results
-        }
-    }
-
     struct ValueCheck {
         query_appraisals: Arc<RwLock<HashMap<MessageId, u128>>>,
     }
diff --git a/tap_core/src/tap_receipt/mod.rs b/tap_core/src/tap_receipt/mod.rs
index 7503ec8c..dbceb141 100644
--- a/tap_core/src/tap_receipt/mod.rs
+++ b/tap_core/src/tap_receipt/mod.rs
@@ -1,6 +1,7 @@
 // Copyright 2023-, Semiotic AI, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
+pub mod checks;
 mod receipt;
 mod receipt_auditor;
 mod received_receipt;
diff --git a/tap_core/src/tap_receipt/received_receipt.rs b/tap_core/src/tap_receipt/received_receipt.rs
index 65454931..bbf73217 100644
--- a/tap_core/src/tap_receipt/received_receipt.rs
+++ b/tap_core/src/tap_receipt/received_receipt.rs
@@ -18,8 +18,8 @@ use serde::{Deserialize, Serialize};
 use super::{receipt_auditor::ReceiptAuditor, Receipt, ReceiptError, ReceiptResult};
 use crate::{
     adapters::{escrow_adapter::EscrowAdapter, receipt_storage_adapter::StoredReceipt},
-    checks::ReceiptCheck,
     eip_712_signed_message::EIP712SignedMessage,
+    tap_receipt::checks::ReceiptCheck,
 };
 
 #[derive(Debug, Clone)]
@@ -236,7 +236,7 @@ impl<S> ReceiptWithState<S>
 where
     S: ReceiptState,
 {
-    fn perform_state_error(self, error: ReceiptError) -> ReceiptWithState<Failed> {
+    pub(super) fn perform_state_error(self, error: ReceiptError) -> ReceiptWithState<Failed> {
         ReceiptWithState {
             signed_receipt: self.signed_receipt,
             _state: Failed { error },
diff --git a/tap_core/src/tap_receipt/received_receipt/received_receipt_unit_test.rs b/tap_core/src/tap_receipt/received_receipt/received_receipt_unit_test.rs
index 8c74ef60..c36846e0 100644
--- a/tap_core/src/tap_receipt/received_receipt/received_receipt_unit_test.rs
+++ b/tap_core/src/tap_receipt/received_receipt/received_receipt_unit_test.rs
@@ -14,10 +14,12 @@ use rstest::*;
 
 use crate::{
     adapters::executor_mock::{EscrowStorage, ExecutorMock, QueryAppraisals},
-    checks::{mock::get_full_list_of_checks, ReceiptCheck, TimestampCheck},
     eip_712_signed_message::EIP712SignedMessage,
     tap_eip712_domain,
-    tap_receipt::{Receipt, ReceiptAuditor, ReceivedReceipt},
+    tap_receipt::{
+        checks::{mock::get_full_list_of_checks, ReceiptCheck, TimestampCheck},
+        Receipt, ReceiptAuditor, ReceivedReceipt,
+    },
 };
 
 #[fixture]
diff --git a/tap_integration_tests/tests/indexer_mock/mod.rs b/tap_integration_tests/tests/indexer_mock/mod.rs
index 221c0798..16cb1f67 100644
--- a/tap_integration_tests/tests/indexer_mock/mod.rs
+++ b/tap_integration_tests/tests/indexer_mock/mod.rs
@@ -22,8 +22,8 @@ use tap_core::{
         rav_storage_adapter::{RAVRead, RAVStore},
         receipt_storage_adapter::{ReceiptRead, ReceiptStore},
     },
-    checks::Checks,
     tap_manager::{Manager, SignedRAV, SignedReceipt},
+    tap_receipt::checks::Checks,
 };
 /// Rpc trait represents a JSON-RPC server that has a single async method `request`.
 /// This method is designed to handle incoming JSON-RPC requests.
diff --git a/tap_integration_tests/tests/showcase.rs b/tap_integration_tests/tests/showcase.rs
index 881d9964..dc388121 100644
--- a/tap_integration_tests/tests/showcase.rs
+++ b/tap_integration_tests/tests/showcase.rs
@@ -25,11 +25,13 @@ use rstest::*;
 use tap_aggregator::{jsonrpsee_helpers, server as agg_server};
 use tap_core::{
     adapters::executor_mock::{ExecutorMock, QueryAppraisals},
-    checks::{mock::get_full_list_of_checks, Checks, TimestampCheck},
     eip_712_signed_message::{EIP712SignedMessage, MessageId},
     tap_eip712_domain,
     tap_manager::SignedRAV,
-    tap_receipt::Receipt,
+    tap_receipt::{
+        checks::{mock::get_full_list_of_checks, Checks, TimestampCheck},
+        Receipt,
+    },
 };
 
 use crate::indexer_mock;