```\\nfunction pillMintingSale(bytes32[] calldata _merkleProof)\\n    external\\n    payable\\n    returns (bool)\\n{\\n    if (\\n        (block.timestamp >=\\n            defaultSaleStartTime + DEFAULT_PIXELMINT_SALE) &&\\n        (block.timestamp < defaultSaleStartTime + DEFAULT_PILLMINT_SALE)\\n    ) {\\n        _tokenIds++;\\n\\n        if (pillMintWhitelistedAddresses[msg.sender] != 0)\\n            revert WhitelistedAddressAlreadyClaimedNFT();\\n\\n        if ((dutchAuctionLastPrice / 2) != msg.value)\\n            revert InvalidBuyNFTPrice(\\n                (dutchAuctionLastPrice / 2),\\n                msg.value\\n            );\\n\\n        bytes32 leaf = keccak256(abi.encodePacked(msg.sender));\\n\\n        if (\\n            !MerkleProof.verify(\\n                _merkleProof,\\n                merkleRootOfPillMintWhitelistAddresses,\\n                leaf\\n            )\\n        ) revert InvalidMerkleProof();\\n\\n        pillMintWhitelistedAddresses[msg.sender] = 1;\\n\\n        emit NewNFTMintedOnPillSale(_tokenIds, msg.sender, msg.value);\\n\\n        _mint(msg.sender, _tokenIds, 1, "");\\n\\n        return true;\\n    } else {\\n        revert UnAuthorizedRequest();\\n    }\\n}\\n```\\n