diff --git a/.gas-snapshot b/.gas-snapshot
index 5f45805b..39460e4e 100644
--- a/.gas-snapshot
+++ b/.gas-snapshot
@@ -5,9 +5,9 @@ EnforcerTest:testFailRateEnforcerMaxRate() (gas: 783780)
 EnforcerTest:testFailRateEnforcerMaxRateAndMaxCarryRate() (gas: 783645)
 EnforcerTest:testRateEnforcerBasic() (gas: 903898)
 EnforcerTest:testTermEnforcerBasic() (gas: 976160)
-TestAstariaV1Loan:testNewLoanERC721CollateralDefaultTermsRecall() (gas: 964589)
-TestAstariaV1Loan:testNewLoanERC721CollateralDefaultTermsRecallLender() (gas: 867112)
-TestAstariaV1Loan:testNewLoanERC721CollateralDefaultTermsRecallLiquidation() (gas: 913906)
+TestAstariaV1Loan:testNewLoanERC721CollateralDefaultTermsRecall() (gas: 964597)
+TestAstariaV1Loan:testNewLoanERC721CollateralDefaultTermsRecallLender() (gas: 867128)
+TestAstariaV1Loan:testNewLoanERC721CollateralDefaultTermsRecallLiquidation() (gas: 913922)
 TestCustodian:testCannotLazyMintTwice() (gas: 76569)
 TestCustodian:testCannotMintInvalidLoanInvalidCustodian() (gas: 66833)
 TestCustodian:testCannotMintInvalidLoanValidCustodian() (gas: 72328)
@@ -50,11 +50,11 @@ TestLoanCombinations:testLoanSimpleInterestEnglishFixed() (gas: 701464)
 TestLoanManager:testGenerateOrder() (gas: 998199)
 TestLoanManager:testGenerateOrderInvalidSender() (gas: 12986)
 TestLoanManager:testSupportsInterface() (gas: 7003)
-TestNewLoan:testBuyNowPayLater() (gas: 1144531)
-TestNewLoan:testNewLoanERC721CollateralDefaultTerms2():((uint256,address,address,address,address,(uint8,address,uint256,uint256)[],(uint8,address,uint256,uint256)[],(address,bytes,address,bytes,address,bytes))) (gas: 974985)
-TestNewLoan:testNewLoanERC721CollateralDefaultTermsRefinance() (gas: 635547)
-TestNewLoan:testSettleLoan() (gas: 1240937)
-TestRepayLoan:testRepayLoan() (gas: 698757)
+TestNewLoan:testBuyNowPayLater() (gas: 1144517)
+TestNewLoan:testNewLoanERC721CollateralDefaultTerms2():((uint256,address,address,address,address,(uint8,address,uint256,uint256)[],(uint8,address,uint256,uint256)[],(address,bytes,address,bytes,address,bytes))) (gas: 974971)
+TestNewLoan:testNewLoanERC721CollateralDefaultTermsRefinance() (gas: 635551)
+TestNewLoan:testSettleLoan() (gas: 1240923)
+TestRepayLoan:testRepayLoan() (gas: 698749)
 TestStarLiteUtils:testEncodeReceivedWithRecipient() (gas: 17955)
 TestStarLiteUtils:testSpentToReceived() (gas: 17708)
 TestStarLiteUtils:testValidateSaltOpt(address,bytes32) (runs: 256, μ: 26479, ~: 26479)
diff --git a/src/originators/Originator.sol b/src/originators/Originator.sol
index cfbecdc1..6a1d9d9d 100644
--- a/src/originators/Originator.sol
+++ b/src/originators/Originator.sol
@@ -75,6 +75,8 @@ abstract contract Originator is Ownable {
 
     event CounterUpdated();
 
+    event HashInvalidated(bytes32 hash);
+
     modifier onlyLoanManager() {
         if (msg.sender != address(LM)) {
             revert NotLoanManager();
@@ -219,6 +221,7 @@ abstract contract Originator is Ownable {
         if (details.offer.salt != bytes32(0)) {
             if (!usedHashes[contextHash]) {
                 usedHashes[contextHash] = true;
+                emit HashInvalidated(contextHash);
             } else {
                 revert InvalidOffer();
             }