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Title: What just happened? Post by: wtf on May 13, 2011, 03:10:49 AM Ok, so my balance just jumped down.
I look in my bitcoin client and see this: http://imageshack.us/m/199/8594/unledxk.jpg Yes, those transactions (received by me) went from confirmed to unconfirmed but they're still sorted as if they were confirmed. They are now back in the queue. Happened right after 2 new blocks within a minute appeared, the 2nd of those containing over 27000 BTC. This looks bad.. Title: Re: What just happened? Post by: kiba on May 13, 2011, 03:12:34 AM That must be a block race?
Title: Re: What just happened? Post by: ArsenShnurkov on May 13, 2011, 03:13:40 AM wait for some more confirmations (might be the client chooses the longest chain)
Title: Re: What just happened? Post by: Tyran on May 13, 2011, 03:20:22 AM I just had a transaction roll back too. I guess it just happens occasionally when 2 blocks are found at almost the same time, and your client initially accepted the "wrong" one.
The massive amount of BTC in that block kind of worries me though, I would like to see the data for the block that got invalidated. Title: Re: What just happened? Post by: bitlotto on May 13, 2011, 03:53:59 AM How many confirmations did it get before it changed?
Title: Re: What just happened? Post by: Cryptoman on May 13, 2011, 04:25:02 AM Block chain split?
Title: Re: What just happened? Post by: Tyran on May 13, 2011, 04:29:43 AM How many confirmations did it get before it changed? I wasn't watching when it happened.Maybe someone else can tell: SetBestChain: height=123555 AddToWallet xxxxxxxxxx new AddToWallet xxxxxxxxxx update SetBestChain: height=123556 REORGANIZE SetBestChain: height=123557 Then another AddToWallet update right before the block that confirmed it the 2nd time. The log has no timestamps so I really can't tell if it was 1 or 2 confirmations. Probably just one? Title: Re: What just happened? Post by: mjsbuddha on May 13, 2011, 04:36:37 AM deepbit just had its first invalid block. don't know if its the same block or not.
Title: Re: What just happened? Post by: FooDSt4mP on May 13, 2011, 06:18:19 AM I feel like I should be selling right now because of this thread... Please do. Title: Re: What just happened? Post by: FreeMoney on May 13, 2011, 06:22:09 AM Yes, those transactions (received by me) went from confirmed to unconfirmed but they're still sorted as if they were confirmed. They are now back in the queue. Happened right after 2 new blocks within a minute appeared, the 2nd of those containing over 27000 BTC. This looks bad.. Did they go from 1/unconfirmed to 0 or from like 5 and 6? Title: Re: What just happened? Post by: Mike Hearn on May 13, 2011, 11:53:30 AM It'd help to quote block hashes rather than numbers here, for obvious reasons.
I assume you guys are talking about these two blocks: 123561 (1,159940732) 0000000000005ce5229e 05/13/11 03:15:05 tx 93 123562 (1,159983756) 0000000000006680ec6b 05/13/11 03:16:15 tx 9 My node hasn't seen any splits longer than a single block for a long time. You can use the bitcoind -printblocktree command to find out if your node did. I also don't see any references to transactions that failed to connect. Title: Re: What just happened? Post by: Tyran on May 13, 2011, 01:59:53 PM It'd help to quote block hashes rather than numbers here, for obvious reasons. I assume you guys are talking about these two blocks: 123561 (1,159940732) 0000000000005ce5229e 05/13/11 03:15:05 tx 93 123562 (1,159983756) 0000000000006680ec6b 05/13/11 03:16:15 tx 9 My node hasn't seen any splits longer than a single block for a long time. You can use the bitcoind -printblocktree command to find out if your node did. I also don't see any references to transactions that failed to connect. Code: 123555 (1,159628576) 00000000000030e507bd 05/13/11 01:09:48 tx 24 Nothing to see here :) Title: Re: What just happened? Post by: njloof on May 13, 2011, 02:23:23 PM So to recap, if I may:
- most likely no malice or funny business afoot - two miners found alternate solutions within a short period of time, too short for the entire network to reach consensus - consensus is restored in the blocks that follow Agreed? Title: Re: What just happened? Post by: mewantsbitcoins on May 13, 2011, 02:27:11 PM Balance in the universe is restored ;)
Title: Re: What just happened? Post by: sniper_sniperson on May 13, 2011, 02:35:24 PM Block chain split? I think someone from bitcoin network tried to divide by zero ... :-\ Title: Re: What just happened? Post by: error on May 13, 2011, 04:18:53 PM Yes, this happened last night. Ironically it was the Deepbit pool that got its block thrown out.
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