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epii (OP)
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March 25, 2011, 11:44:02 PM |
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Open thread to discuss unusual or confusing transactions observed on http://blockexplorer.com , and possible explanations for them. To start things off... does anyone know what's going on with this block? http://blockexplorer.com/b/115060There are more than 70 transactions of over 1000 BTC in a single block! Each transaction appears to feed into the next one, which is why they all appear in descending order of value. |
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The Bitcoin network protocol was designed to be extremely flexible. It can be used to create timed transactions, escrow transactions, multi-signature transactions, etc. The current features of the client only hint at what will be possible in the future.
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slush
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March 26, 2011, 12:14:17 AM |
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Looks like Tycho's pool payout... For example, my pool's payouts looks like this |
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TiagoTiago
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March 26, 2011, 02:26:36 AM |
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(just adding this thread to my watchlist)
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(I dont always get new reply notifications, pls send a pm when you think it has happened) Wanna gimme some BTC/BCH for any or no reason? 1FmvtS66LFh6ycrXDwKRQTexGJw4UWiqDX  The more you believe in Bitcoin, and the more you show you do to other people, the faster the real value will soar! |
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epii (OP)
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March 26, 2011, 08:22:01 AM |
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Looks like Tycho's pool payout... For example, my pool's payouts looks like thisI guess most of the weird patterns I've observed would probably be pool payouts and such then. Kind of a hit for anonymity. Is the 1000 BTC that remains probably Tycho's profit, then? |
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slush
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March 26, 2011, 10:32:51 AM |
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I guess most of the weird patterns I've observed would probably be pool payouts and such then. Kind of a hit for anonymity.
I don't think so. Nobody really know who owns those addresses. And while mining standalone, anybody can watch your mining income, too, because once you spend some coins, they are connected together in the spending transactions. If you care about anonymity, you can use pools over Tor as some people do. Is the 1000 BTC that remains probably Tycho's profit, then?
Probably not, the rest on the account are payouts for people which don't cross their withdrawal limits. |
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epii (OP)
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March 31, 2011, 06:17:14 AM
Last edit: March 31, 2011, 04:51:31 PM by epii |
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From bitcoinmonitor.com, every 10 on the 10:  Notice that every ten minutes on the dot there is a transaction of around 200 BTC. A several of them are exactly 191.12 BTC. For example: http://blockexplorer.com/t/7JNH6MUkCnhttp://blockexplorer.com/t/4B52WFCPx2And yet, the breakdown of the 119.12 is completely different. Any ideas? |
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jkminkov
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March 31, 2011, 03:52:24 PM |
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Looks like Tycho's pool payout... [/url] it is, I see my wallet listed there |
.:31211457:. 100 dollars in one place talking - Dudes, hooray, Bitcoin against us just one, but we are growing in numbers!
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epii (OP)
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April 07, 2011, 09:13:03 AM |
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It took 12 minutes to calculate this block: http://blockexplorer.com/b/117147There were more than 90 unconfirmed transaction at the time the block before this finished, and at the time this one finished. Why did only one (non-generation) transaction appear in the block? |
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slush
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April 07, 2011, 09:17:55 AM
Last edit: April 07, 2011, 02:08:12 PM by slush |
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It took 12 minutes to calculate this block: http://blockexplorer.com/b/117147There were more than 90 unconfirmed transaction at the time the block before this finished, and at the time this one finished. Why did only one (non-generation) transaction appear in the block? a) Somebody is accepting only transactions with fees (edit: most probable; there is currently only one more transaction with fees, which is 'sendmany' payout from the pool. Sendmany transactions are accepted only by newest clients, so older clients ignore this (their bad, they are missing my fees just because they use older bitcoin version . or b) Somebody started bitcoin client and found block pretty quick. Older transactions are not actively relayed to freshly connected node, so it's pretty normal that bitcoin client does not know all pending transactions. |
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[Tycho]
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April 07, 2011, 08:28:30 PM |
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Recently i saw some nice pattern - ~8+ blocks found in pairs constantly in the day before difficulty step :)
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Welcome to my bitcoin mining pool: https://deepbit.net - Both payment schemes (including PPS), instant payout, no invalid blocks ! ICBIT Trading platform : USD/BTC futures trading, Bitcoin difficulty futures ( NEW!). Third year in bitcoin business. |
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epii (OP)
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April 11, 2011, 07:29:55 PM |
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Discovered via Bitcoin Monitor: Block found at 2011-04-11 18:52:57 http://blockexplorer.com/a/2EnJ1VL8KxBitcoin Charts reports the following trade on MtGox: Apr 11, 2011, 18:53:44 | 0.75618 | 50.00 Looks like some miner's got a bot to sell off block bounties. This is the first time I've seen this particular pattern. |
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epii (OP)
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April 17, 2011, 07:31:17 AM |
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theymos
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May 03, 2011, 09:38:34 PM |
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Yep. That's Luke-jr's pool. Puddinpop's pool also used to do that. It's nice because all participants get paid immediately instead of having to wait 120 blocks. |
1NXYoJ5xU91Jp83XfVMHwwTUyZFK64BoAD
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slush
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May 04, 2011, 12:16:28 AM |
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It's nice because all participants get paid immediately instead of having to wait 120 blocks.
Well, that's not absolutely correct. People _see_ block payments immediately, but also have to wait 120 blocks till it mature (or 100 blocks with hacked bitcoin client). |
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epii (OP)
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May 04, 2011, 04:10:57 AM |
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Oh, I get it - when the client generates the block, it includes the transaction for the generation bounty in the block, so that transaction can pay out to anyone, and this is valid so long as the total payout = 50 BTC (or whatever the bounty is at the time) + transaction fees. Right?
Would it be possible for a miner to create extremely erratic payouts (i.e. distribute the bounty to a million addresses) as a vector of attack? Or would the block be rejected in that particular case for being over 1MB?
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theymos
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May 04, 2011, 04:37:45 AM |
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Oh, I get it - when the client generates the block, it includes the transaction for the generation bounty in the block, so that transaction can pay out to anyone, and this is valid so long as the total payout = 50 BTC (or whatever the bounty is at the time) + transaction fees. Right?
Would it be possible for a miner to create extremely erratic payouts (i.e. distribute the bounty to a million addresses) as a vector of attack? Or would the block be rejected in that particular case for being over 1MB?
Right. The generation is just an input to a transaction. The value of the input is found by the block subsidy + fees. The outputs follow the normal transaction rules. The generator could easily create a giant generation transaction with tons of garbage outputs. You don't even need to pay out to the outputs: 0-value outputs are valid. The block size is limited to 1MB, though. |
1NXYoJ5xU91Jp83XfVMHwwTUyZFK64BoAD
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