Topic: GHash.IO and double-spending against BetCoin Dice (Read 19007 times)
This is just creepy, i wonder if the devs know about it.
thank you very much!
There is a parallel discussion here: https://bitcointalksearch.org/topic/ghashio-and-double-spending-against-betcoin-dice-327767
This sounds like a serious problem, I'm concerned no one is talking about this on http://www.reddit.com/r/Bitcoin/
this is serious, this must be addressed ASAP, you have to put this topic on Development & Technical Discussion board, this is not the right place, very few people visit this sub-forum.
I will copy the OP and add make a new post there.
edit: here is the link to to a new topic with the exact copy of your post https://bitcointalksearch.org/topic/ghashio-and-double-spending-against-betcoin-dice-327767
Originally the thread was in the Mining subforum, but moderator moved it here.I will copy the OP and add make a new post there.
edit: here is the link to to a new topic with the exact copy of your post https://bitcointalksearch.org/topic/ghashio-and-double-spending-against-betcoin-dice-327767
Thanks.
On a side note, I posted this in several cex.io threads I just saw how delusional some people can be.
+1
this is serious, this must be addressed ASAP, you have to put this topic on Development & Technical Discussion board, this is not the right place, very few people visit this sub-forum.
I will copy the OP and add make a new post there.
edit: here is the link to to a new topic with the exact copy of your post https://bitcointalksearch.org/topic/ghashio-and-double-spending-against-betcoin-dice-327767
I will copy the OP and add make a new post there.
edit: here is the link to to a new topic with the exact copy of your post https://bitcointalksearch.org/topic/ghashio-and-double-spending-against-betcoin-dice-327767
I am not sure if they bother at all. They have their own source of hashers, so even if all side miners quit they survive.
That's true of course, but at least no mislead miners/investors will get scammed, which is the most important thing.
ghash is no longer reporting their hashrate. Maybe its a bug because they passed 1PH, but I also noticed the past days there where wild swings, hashrate would drop 500TH or more. Could be technical issues, but after reading this, I do wonder if its not something more nefarious.
Anyway, regardless if there is something going on, Id like to urge miners to point their hashrate to some smaller pools than ghash and btcguild. Its just not good for bitcoin to have 2 entities with almost 30% of the hashrate each, and this gives more credence to the "selfish miner attack" recently published.
Anyway, regardless if there is something going on, Id like to urge miners to point their hashrate to some smaller pools than ghash and btcguild. Its just not good for bitcoin to have 2 entities with almost 30% of the hashrate each, and this gives more credence to the "selfish miner attack" recently published.
I am not sure if they bother at all. They have their own source of hashers, so even if all side miners quit they survive.
I won't be staying mum for much longer - if they don't respond soon to this and other concerns me & many other people have about their whole set-up, I'll be posting an open letter to them on their service thread demanding that they explain this and other issues. The more I look at this thing, the more alarm bells start ringing 
Personally, if I were publicly accused of a scam, I would have addressed the accusation immediately, with proof, in order to clear my name completely. Saying & doing nothing could be considered an admission of guilt, and usually is.
Personally, if I were publicly accused of a scam, I would have addressed the accusation immediately, with proof, in order to clear my name completely. Saying & doing nothing could be considered an admission of guilt, and usually is.
Im surprised this is not causing any more discussion. The largest pool appears to be double spending, and everyone is mum? Has this been debunked or what?
It seems that everyone is busy with their Jupiters and Saturns. The related topic grows 10 pages per day.
Im surprised this is not causing any more discussion. The largest pool appears to be double spending, and everyone is mum? Has this been debunked or what?
[offtopic]
Bitfury has been contradictory in his posts about whether he's associated with ghash or not.
He's been associating himself with sort of "ideological" mining, being committed to network security, while his chip-making bussiness is considered controversial and greedy (but that's the market I must admit).
(It's already a common practice to sarcastically call him "ideological miner")
His russian associated ASIC distributor Metabank is commonly compared to BFL in their bussiness model (though I personally think they are not as bad).
But it's not analysis, just emotions people express in russian subforum.
[/offtopic]
Bitfury has been contradictory in his posts about whether he's associated with ghash or not.
He's been associating himself with sort of "ideological" mining, being committed to network security, while his chip-making bussiness is considered controversial and greedy (but that's the market I must admit).
(It's already a common practice to sarcastically call him "ideological miner")
His russian associated ASIC distributor Metabank is commonly compared to BFL in their bussiness model (though I personally think they are not as bad).
But it's not analysis, just emotions people express in russian subforum.
[/offtopic]
Wish I could read Russian.......so go on, spill the beans my man 
Interesting findings. Has anyone emailed CEX.IO about this.
Watching this thread....
You can look at pool's support response a few posts above Watching this thread....
FYI bitfury (russian-speaking) and ghash have a questionable reputation in the russian subforum. And for a reason
Interesting findings. Has anyone emailed CEX.IO about this.
Watching this thread....
Watching this thread....
So, how about 3 confirmations payment, can it be double spent?
Very unlikely, even 1 confirmation payment is quite safe.
So, how about 3 confirmations payment, can it be double spent?
I don't how to analyze the blockchain. But if this is really true, double spending bitcoin is big news.
Double-spending a 0-confirmation TX is not new. It doesn't even require 0.1% of the network hash rate to do it. This is why accepting unconfirmed transactions is foolish. Allowing 0-confirm txes to count as a payment should only be done for online services that are easily revokable without impacting the business for the period before it was a confirmed doublespend.
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