How does blockchain.info figure out which miner won?

[RangerK]

I tried to search for an answer to this question, but couldn't find one.  I also looked here: https://en.bitcoin.it/wiki/Blocks#Block_structure

Are the miners on fixed Bitcoin addresses so Blockchain.info associates certain addresses with the major pools?

[1715116784]

1715116784

[1715116784]

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[1715116784]

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[1715116784]

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[Remember remember the 5th of November]

Usually by the address of where the generated coins go to, the coinbase which has some custom text encoded by the pool operators.

[RangerK]

Thanks for the reply!  I love your username.

Usually by the address of where the generated coins go to

So, the receiving address of the first transaction.  Right?

the coinbase which has some custom text encoded by the pool operators.

not sure what you mean by "coinbase"

[drawingthesun]

the coinbase which has some custom text encoded by the pool operators.

not sure what you mean by "coinbase"

https://en.bitcoin.it/wiki/Coinbase

EDIT: its the content of the input for a newly generated block (so like a message)

[RangerK]

Thank you, Drawingthesun.

It seems the receiving Bitcoin addresses differ, though.

Here are two recent blocks solved by Deepbit with two different receiving Bitcoin addresses for the block's initial transaction:

http://blockchain.info/block-index/422349/0000000000000019fb321a4a81a051e5fcd1efd7b7f664207bb5a2edda2e0a32

http://blockchain.info/block-index/422353/000000000000001bd8c2309b571962336fc986d66d624017c014f576a130f5c6

[drawingthesun]

See https://bitcointalk.org/index.php?topic=113860.0

blockchain.info looks at the 1st relay which may or may not be the actual miner.

Blockchain.info may not be entirely accurate.

You are right about the coinbase not being relevant. I looked at those transactions and the IP and coinbase had no similarities.

[DiamondCardz]

You can't actually identify who mined the block, other than by looking at where the generated coins end up. You can only really identify the person who first relayed the block.

[DannyHamilton]

You can't actually identify who mined the block, other than by looking at where the generated coins end up. You can only really identify the person who first relayed the block.

^^THIS^^

Take another look at the blockchain.info website.  You'll see that it doesn't say "mined by", it says "relayed by".  This may or may not be who mined the block, there is no way to know for sure. They only know that when they first heard about the block, that mining pool was who they heard about it from.  It is entirely possible that someone else mined the block, and then relayed it to that pool who proceeded to relay it to blockchain.info.

[RangerK]

Thanks!