Re: [Bitcoin-development] Some PR preparation

[Peter Vessenes <peter@coinlab.com>]

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Can some enterprising soul determine if there were any double-spend
attempts?

I'm assuming no, and if that's the case, we should talk about that publicly.

Either way, I think it's generally another test well done by everyone;
people pitched in on PR, tech, communication, yay Bitcoin!



On Tue, Mar 12, 2013 at 9:55 AM, Alan Reiner <etotheipi@gmail.com> wrote:

> On Tue, Mar 12, 2013 at 8:10 AM, Luke-Jr <luke@dashjr.org> wrote:
>
>>
>>
>> I think we should be careful not to downplay the reality either.
>> For a number of hours, transactions could have received up to N
>> confirmations
>> and then still been reversed. While we could contact the bigger payment
>> processors, I saw people still trying to buy/sell on OTC, whom could have
>> been
>> scammed even by taking standard precautions.
>>
>>
> I don't want to misrepresent what happened, but how much of that was
> really a risk?  The block was rejected, but the transactions were not.  Any
> valid transactions to hit the network would get added to everyone's memory
> pool and mined in both chains.  Thus all nodes would still reject
> double-spend attempts.  As far as I understood it, you would've had to have
> majority mining power on one of the chains (and both had non-negligible
> computing power on them), so double-spending still required an exceptional
> amount of resources -- just not the normal 50% that is normally needed.
>  Perhaps... 10%?   But how many people can even have 10%?  In addition to
> that, a victim needs to be found that hasn't seen the alert, is willing to
> execute a large transaction, and is on the wrong side of the chain.
>
> Is this incorrect?  Yes, there was less resources needed to execute an
> attack -- but it still required a very powerful attacker, way outside the
> scope of "regular users."
>
>
>
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[image: CoinLab Logo]PETER VESSENES
CEO

*peter@coinlab.com * /  206.486.6856  / SKYPE: vessenes
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