Please note that this is a possible malicious clone of a legitimate project.

See PoWx.org/oBTC. It reads:

***Please note oBTC is the ONLY blockchain we have ever published. Others using heavyhash are not affiliated with PoWx and are very possibly malicious. Any piece of software you get anywhere outside the PoWx GitHub may be malicious.***

oBTC bitcointalk thread: https://bitcointalk.org/index.php?topic=5368280.0