Double spends? But there are only newly generated coins

[hikker]

 

https://blockchain.info/address/1BGbGFBhsXYq6kTyjSC9AHRe1dhe76tD6i
This address has been used by a certain unknown miner to collate his earnings from mining blocks. For every block this person finds, it sends a satoshi to this address.

So how can Blockchain.info associate this address with double spends if the address hasn't spent anything and only newly generated coins are attributed to it?

Thanks in advance for your help

p.s. Interesting note about this "Unknown" miner: all the blocks mined sent to this address have a certain amount of transactions... 1,2,4,8,16,32,64,128,256,512....

[1538086255]

1538086255

[Tammy Chan]

https://blockchain.info/address/1BGbGFBhsXYq6kTyjSC9AHRe1dhe76tD6i
This address has been used by a certain unknown miner to collate his earnings from mining blocks. For every block this person finds, it sends a satoshi to this address.

So how can Blockchain.info associate this address with double spends if the address hasn't spent anything and only newly generated coins are attributed to it?

Thanks in advance for your help

p.s. Interesting note about this "Unknown" miner: all the blocks mined sent to this address have a certain amount of transactions... 1,2,4,8,16,32,64,128,256,512....

No idea on the first part.

For the second part, there have been some discussion on reddit.
http://www.reddit.com/r/Bitcoin/comments/20y0nq/why_do_all_the_blocks_hashed_by_unknown_miners/

[-ck]

For some reason until the first few confirmations come in, blockchain.info says this often on freshly mined blocks.