Double Spend Warning on blockchain.info

[goodlord666]

"Warning! this bitcoin address contains transactions which may be double spends. You should be extremely careful when trusting any transactions to or from this address."

http://blockchain.info/address/1LTqpuigUs8oBAJsphRtHJsXU6UcQcuqCe

What exactly does this mean?



Thanks

[Stephen Gornick]

What exactly does this mean?

It means someone somewhere cheated you by sending you funds that never confirmed and instead were double spent.  You then unknowingly are propagating this cheat to someone else by sending a payment with funds that will never confirm and include a double spent coin.

This transaction back in your history that cheated probably came to you from SatoshiDICE.   And if true, then prior to that it was sent from someone trying to cheat SatoshiDICE.   So SatoshiDICE had no intention to cheat, but they didn't take proper precautions from sending the "potentially bogus" payout to you.

When they do that (and I wish they would stop doing it), what they end up doing is having to fix the problem at a later time by sending out a replacement payout.  The later replacement payout confirms just fine.

If you were using the Bitcoin-Qt client this probably wouldn't have happened to you.  Bitcoin-Qt won't let you spend a payment that you've received without first ensuring it has at least one confirmation.  (Technically this could still happen with one confirmation, and thus from the Bitcoin-Qt client as well though that occurring is generally pretty rare.)

But you are using Blockchain.info/wallet which will gladly spend funds that haven't yet confirmed.

To avoid this in the future, use Bitcon-Qt ... or maybe stop gambling [Edit: with a service that will send you bogus payouts].  :-)

[goodlord666]

FYI, above screenshot isn't related to me.

Thanks for the explanation.

[ffernandex]

Hello,

I'm getting the same warning from one address I've only used to collect mining profit from different pools. How can this be possible??

Thanks for any info on this,

[DannyHamilton]

Hello,

I'm getting the same warning from one address I've only used to collect mining profit from different pools. How can this be possible??

Thanks for any info on this,

Orphaned blocks.

[ffernandex]

Hello,

I'm getting the same warning from one address I've only used to collect mining profit from different pools. How can this be possible??

Thanks for any info on this,

Orphaned blocks.

Could this be related to the supposed hack that Eligius was victim of? how does that affect me? can I loose btc I currently have there?

[grue]

Hello,

I'm getting the same warning from one address I've only used to collect mining profit from different pools. How can this be possible??

Thanks for any info on this,

Orphaned blocks.

Could this be related to the supposed hack that Eligius was victim of? how does that affect me? can I loose btc I currently have there?

no, it's not related.

[DannyHamilton]

Hello,

I'm getting the same warning from one address I've only used to collect mining profit from different pools. How can this be possible??

Thanks for any info on this,

Orphaned blocks.

Could this be related to the supposed hack that Eligius was victim of?

No.

And as far as I've heard, Eligius has not been hacked.  They just had a miner that was contributing hash power to collect when the pool found a block, but throwing away the blocks that the miner solved

how does that affect me?

It probably doesn't.

can I loose btc I currently have there?

Where?  At Eligius?  It's always possible for someone to run off with your bitcoins if you give them control.  Perhaps you should consider withdrawing to your own wallet so you have control over the bitcoins.

[ffernandex]

Hello,

I'm getting the same warning from one address I've only used to collect mining profit from different pools. How can this be possible??

Thanks for any info on this,

Orphaned blocks.

Could this be related to the supposed hack that Eligius was victim of?

No.

And as far as I've heard, Eligius has not been hacked.  They just had a miner that was contributing hash power to collect when the pool found a block, but throwing away the blocks that the miner solved

how does that affect me?

It probably doesn't.

can I loose btc I currently have there?

Where?  At Eligius?  It's always possible for someone to run off with your bitcoins if you give them control.  Perhaps you should consider withdrawing to your own wallet so you have control over the bitcoins.

Thank you very much for your input!

[1Neptune]

Hello,

I'm getting the same warning from one address I've only used to collect mining profit from different pools. How can this be possible??

Thanks for any info on this,

Orphaned blocks.

I have an orphaned block attached to my address for eligius payouts. Seems the payout was added to a block which then got orphaned, then almost an hour later the payout was sent at a slightly higher amount (which is normal, given the miners kept working so the share went up) in a block that didn't get orphaned and went through the normal confirmations so no problem there.

The remaining problem is the payout that was included in the orphaned block is still attached by blockchain.info under the "unspent outputs" link. Anyone know how long this will take to clear, or if it ever will?

Thanks in advance.