Tupsu,

You do understand that you don't get paid for a block until a few more blocks have been found after your block is found so the network can confirm the block?

If you sell your hash after your block is found, but before it is confirmed you don't get the block payment, negative or positive.

So from what I can see..

You sold out your last 505 ghs antS5 hashpower at 2015-02-22 11:54, so you have not got the mining profit from these two blocks.

maybe you owned the hash at the time the block was found, but you didn't own it at

2015-02-22 12:31:42
2015-02-22 12:34:43  when the blocks were confirmed by the network.


***  By the way that also works if the block is going to be a negative payout.   If you own the block when it is going to be negative but sell it before it is confirmed....  the new owner will get the negative block reward at the time it confirms ( ownership )