I guess this may not be a feature for offline coldstorage program.
But I think it is necessary to be able to monitor the balance of the coldstorage balance, without putting coldstorage online with a wallet. That is a software that can check the balance via the blockchain.
bitsharesblocks.com has no such feature (because of TITAN?)
Right now, I don't know how to monitor my BTS balance without running my wallet client.