If you're willing to reach out to coinmarketcap (and any other that need it), I would recommend them in this order:
http://cryptexplorer.com/chain/Unobtanium
http://bit.usr.sh:2750/chain/Unobtanium
https://uno.cryptocoins.at/explorer/chain/unobtanium
Gliss from Coinmarketcap has updated our block explorer to cryptexplorer.com/chain/Unobtanium: http://coinmarketcap.com/
Nice job!! Thank you for solving this problem for the community!
