From 07c12fd03d069078c72f92ca086f6ad10f26e7f1 Mon Sep 17 00:00:00 2001
From: Abhivansh <31abhivanshj@gmail.com>
Date: Sun, 11 Jan 2026 15:47:22 +0530
Subject: [PATCH] follow CEI pattern in provePossession

---
 src/PDPVerifier.sol | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PDPVerifier.sol b/src/PDPVerifier.sol
index 160f148..a80181c 100644
--- a/src/PDPVerifier.sol
+++ b/src/PDPVerifier.sol
@@ -670,6 +670,7 @@ contract PDPVerifier is Initializable, UUPSUpgradeable, OwnableUpgradeable {
         //
         // (add 32 bytes to the `callDataSize` to also account for the `setId` calldata param)
         uint256 refund = calculateAndBurnProofFee(setId);
+        dataSetLastProvenEpoch[setId] = block.number;
 
         {
             address listenerAddr = dataSetListener[setId];
@@ -678,7 +679,6 @@ contract PDPVerifier is Initializable, UUPSUpgradeable, OwnableUpgradeable {
             }
         }
 
-        dataSetLastProvenEpoch[setId] = block.number;
         emit PossessionProven(setId, challenges);
 
         // Return the overpayment after doing everything else to avoid re-entrancy issues (all state has been updated by this point). If this