feat: destroyToken transfer to 0xdead (#15)

Open-Attestation · Sep 30, 2020 · e81fe8e · e81fe8e
1 parent 74d2d75
commit e81fe8e
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/contracts/ERC721.sol b/contracts/ERC721.sol
@@ -1247,7 +1247,8 @@ contract TradeTrustERC721 is ERC721MintableFull, IERC721Receiver {
 
   function destroyToken(uint256 _tokenId) public onlyMinter {
     require(ownerOf(_tokenId) == address(this), "Cannot destroy token: Token not owned by token registry");
-    _burn(_tokenId);
+    // Burning token to 0xdead instead to show a differentiate state as address(0) is used for unminted tokens
+    _safeTransferFrom(ownerOf(_tokenId), 0x000000000000000000000000000000000000dEaD, _tokenId, "");
     emit TokenBurnt(_tokenId);
   }