Only 9 unique treasures exist. MAX_TREASURES = 10 and REWARD = 10 ether, so the contract is funded with 100 ETH expecting 10 claimable treasures. The duplicate means only 9 can ever be claimed (or the same hash is claimed once and the duplicate slot is wasted).
The last two entries in ALLOWED_TREASURE_HASHES in main.nr are identical:
Likelihood:
The duplicate exists at deployment, the 10th reward slot is unreachable from the moment the contract goes live with no action required by any party
The withdraw() function requires claimsCount >= MAX_TREASURES , with only 9 unique treasures this condition cannot be met through normal play, permanently blocking owner fund recovery too
Impact:
10 ETH is permanently locked in the contract with no legitimate path to claim it
The owner cannot recover the locked ETH via withdraw() since claimsCount can never legitimately reach 10
The issue stems from a mismatch between the circuit and the contract’s economic assumptions: the Solidity contract is configured for `MAX_TREASURES = 10` and only allows the owner to call `withdraw()` once `claimsCount >= MAX_TREASURES`, while the Noir circuit’s baked-in `ALLOWED_TREASURE_HASHES` array does not actually contain ten distinct treasures because one hash is duplicated and another expected hash is missing. As a result, under the intended one-claim-per-treasure design described in the README, there are only nine uniquely claimable treasures even though the system is funded and accounted as if ten rewards can be legitimately redeemed. That creates two linked consequences from the same root cause: first, one treasure is effectively unclaimable because no valid proof can ever be generated for the missing allowed hash, and second, the normal “hunt over” withdrawal path becomes bricked because honest participants can never reach ten legitimate unique claims, leaving the post-hunt fund recovery logic via `withdraw` function permanently unreachable. The owner can still intervene through the emergency path.
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