function nuke(uint256 tokenId) public whenNotPaused nonReentrant {
    // ... (verification checks)
    uint256 claimAmount = /* calculated based on nuke factor */;
    fund -= claimAmount;
    nftContract.burn(tokenId);
    payable(msg.sender).call{value: claimAmount}("");
    // ... (event emissions)
}
 function burn(uint256 tokenId) external whenNotPaused nonReentrant {
    require(
      isApprovedOrOwner(msg.sender, tokenId),
      'ERC721: caller is not token owner or approved'
    );
    if (!airdropContract.airdropStarted()) {
      uint256 entropy = getTokenEntropy(tokenId);
      airdropContract.subUserAmount(initialOwners[tokenId], entropy);
    }
    _burn(tokenId);
  }
