Really?!! You are blind?

For example: blocks 10879 - 10957 its ok? In this time mining only CloudPools (smallest hash from miningspeed, cloudpools and coinblockers)!
It happened more than once !!

Feb 13, 2018 2:29:21 AM
Block 10879
to
Feb 13, 2018 5:55:40 AM
Block 10957