New cloudmining offering AMHash has disclosed their mining addresses:
5.There are 3 payment addresses of our hashrate:
1HtUGfbDcMzTeHWx2Dbgnhc6kYnj1Hp24i
1ERszMSERwHNR9Xty73KZXpsg1jjBXWcHh
1K7AuMJwVfZg3UVjinnjT2HzG4pJvACat6
Just like pictures can be faked, mining addresses can be rented for premium price. I remember people purchasing freshly mined bitcoins on this forum only. Then I did not understand the reason, but now I do. Unless the miner is at your location, everyone is same. There is
NO DIFFERENCE between PB Mining and Cloudhashing whatsoever.
ASICMINER has been around for long, and their rates are quite sensible. I would be inclined to trust in this one but not invest in it (poor RoI).