Thanks! livemines.com looks close but only 1000 bits maximum
I don't think the maximum is 1000 bits. Maybe you should try click the 1000 bits button to make it 2000 or hoe much bits you want. I have opened the livemines and I tried clicking on 1000 and it increase the number. I wouldn't rely much on looks and maybe you should try stake and cryptogames too.