It is pool mining.
Everyone mining on single wallet (master-wallet of pool), then, pool count your shares and pay for them from block reward.
You can see % you contributed for founding new block if you enter your wallet here
http://bsod.pw/?address=Also, there, you can check your unpaid balance, last payments and so on.
p.s.
pool sending payments every 2 hours, if you have more then 0.1 on your balance, or 0.01 every sunday
I know that. Problem that these blocks do not present in pool's stats and if they are not presented in stats I cannot see % contributed for founding new block and as a result I do not receive reward. These blocks are hidden.