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1561  Economy / Marketplace / Re: Selling Euro Amazon Vouchers on: October 11, 2010, 11:19:49 AM
Please, do put it up regardless... some of us are not in the US Smiley (though I understand you need to know what to say in the auction)
1562  Bitcoin / Bitcoin Discussion / Re: Bitcoin in RALLY mode on: October 10, 2010, 02:01:58 PM
Im my opinion you will be massively wrong.
The DOW will also crash in nominal terms.
Below 1000 points between 2014-2016

Lets bet. 1000 bitcoins that the DOW does not touch 1000 points before 2016. Deal?

kiba what you are working on could come handy now.

<shamelessplug>You can also ask TTBit to get that on bitcoinsportsbook</shamelessplug>
1563  Bitcoin / Development & Technical Discussion / Re: Key pool feature for safer wallet backup on: October 09, 2010, 08:41:18 PM
Much appreciated, this feature will be Smiley

Now, is there/will there be a way to know how many free keys are in the pool at some moment in time, and trigger generation of a new pool of addresses in a determined time point?

The idea is to be able to schedule backups when new adresses are going to be generated, and to never use an address not already in a backup. These keys will be used for both change and new addresses, correct?

Thank you!
1564  Economy / Marketplace / Re: Another dip in the market price... on: October 08, 2010, 11:00:21 PM
Dagnabbit!  I missed another one!  The currency price on MtGox has fallen to under a cent and the volume shot through the roof.  I know no other details, but I looks like someone wanted to be a major market mover.


I'm pretty sure that was a sw glitch though, as I and a lot of others had open orders to buy way over 0.01 and nothing got sold. As I understand it if someone was selling for 1c they would get served with the bids above that first.
1565  Economy / Marketplace / Re: ===>>>BCM SCAM ALERT<<<=== on: October 08, 2010, 07:46:37 PM
So, what happens if the scam is for real? The exchanges are being paid with transfers, but their accounts get frozen thus they don't have the funds to pay others? Coins being transfered out are transfered out, period, so the scammer buying bitcoins gets to keep them.

What about the rest of us, who have sold? Is bce/mtgox going to get ahold of the US$ in our accounts?

I feel a love song coming... Smiley
1566  Bitcoin / Mining software (miners) / Re: OpenCL miner for the masses on: October 07, 2010, 01:53:51 PM
Got it working:

295525 khash/s!!!

Holy mother of <Insert supreme being here>

Please, do share some hw details Smiley
1567  Bitcoin / Development & Technical Discussion / Re: OpenCL enabled client - coordinated collaboration on: October 07, 2010, 01:49:18 PM
Yeah, been there, tried that. Turns out I kick started a cuda version that got embraced by eurekafag, which was pretty cool. But make no mistake, every time someone builds a slightly better version, the tendency is to keep it to themselves, unless they lack the hardware to use it to their own profit. Which accounts for the rest of us, I guess Smiley

Anyway, I've been moving my attention elsewhere as the amount of interest I got from the community to pursue this was so small I feel I'm just doing this for myself. Which is fine, except I have other things I'd rather do right now.

But if someone preps up a clean implementation against the default client I'll certainly help with all I learned in cuda (and to a lesser extent in opencl) and be a very avid tested!
1568  Bitcoin / Bitcoin Discussion / Re: Interview with Satoshi. on: October 07, 2010, 12:58:45 AM
What planet do you come from, does it get cold there during the winter and don't you have other heating means, ones that don't include getting CPUs to 100% continuosly?

Also, while on the subject, are you planning to rule the earth all by yourself or do we get to apply for sidekick?
1569  Economy / Marketplace / Re: Wallet.dat backups may lose transactions prior to backup (and this is not a bug) on: October 07, 2010, 12:55:34 AM
Thanks for the tip re: backupwallet.  That's not listed in the online API documentation.

Two questions, if you'd be so kind:

1) Is there any benefit to multiple backups?  Or do newer backups strictly invalidate older ones?  That is, should I call my file backup.dat or backup.datetime().dat? 

There's always some benefit to multiple time point backups. You might have bad ram in the computer and one of the backups is corrupted, same goes for hard drive or even just a slightly loose cable. But for the most part, assuming all goes well, the latest backup does invalidate older ones.
Now, don't feel too safe because you have one backup, even 100 of them, on the same physical location. Same computer is asking for trouble, same house is calculated risk. Better to make a daily or so backup to an external storage service. It's always about balance; how much do you keep in the wallet, how often you do transactions, what would it cost you to loose such wallet.

2) This is a lotta damn foolishness we have to deal with here, and it's all caused by sending the change to a newly generated address.  What's wrong with sending it to an existing, possibly designated one?

How this might work
*If there's an address labeled "Change," that address receives all change payments.  Uber-strict backups not necessary.  Maybe even something more intuitive like "Your Address," the designated one that's already there.
*If not, create a new address as usual, for anonymity or whatever.

I don't see any technical reason to not do so that way. Other may think differently, but from the top of my head there's nothing preventing that. It would, however, create a very simple path to follow and find you, and while this may not present an issue to you personally, if your address is compromised there's a good chance the receiver is also traceable now. I'm paranoid, you probably aren't, so my opinion is highly biased Smiley
1570  Economy / Marketplace / Re: Selling 50,000+ BTC at $0.04/BTC on: October 05, 2010, 09:27:24 PM
i am .0605 bid on mtgox for 15,000 if anyone wants the arbitrage

Well, I'm not very good at those stuff, but isn't bitcoin2cash's bid a better deal ?

I mean, if I want to buy btc with 1$, with you I get 1./0.0605=16.53 BTC, when bitcoin2cash offers 25 BTC for the same dollar.  What do I get wrong ?


Trust. Or lack thereof. And that comes with a price apparently Smiley
1571  Bitcoin / Bitcoin Discussion / Re: Sending physical letters to businesses on: October 05, 2010, 08:54:19 PM
Okay, great.

So we have Canada, USA, and Australia covered. It costs $1.70 CAD ($1.67 USD) to mail Europe from here. Can anyone do this cheaper than I can?

Mail the physical letters? Sure, I can do that. Not as inexpensive as your in-country mails, but still much cheaper than the AUS to EUR alternative.

Now, the problem I see is with translating the letters. I can do Portuguese, I know there are Italian and spanish speaking members around and, of course, Russian too, so lets get some templates going Smiley
1572  Economy / Economics / Re: Organised crime on: October 05, 2010, 07:40:39 PM
Consider a bitcoin release in the future where a block can only be generated by proof-of-murder.  difficulty increases logarithmically, so this seems reasonable. 

Wow, there's an idea worth exploring! What proof of work could we use? Murder seems fitting, what about selfless generosity? Even harder to come by Wink
1573  Other / Off-topic / Re: True Goal of Satoshi on: October 05, 2010, 06:13:06 PM
Maybe we should just ask Satoshi why he did it. Wink

I do not know Satoshi or what type or person he is. Heck, I don't even know if he is a person Smiley I do believe that at the very least he has that sarcastic smile (if his physical existence, having on, so allows) every time he reads about how he's out to save the world from the bad guys or rather out to be the baddest of these guys.

In his position, I would milk this to the limit, and would hold back on responding for as long as there were witty remarks. Even better, leave that to be answered on his autobiography, which you will only be able to buy using bitcoins.
1574  Other / Off-topic / Re: New payment processors coming to market. on: October 05, 2010, 12:05:58 PM
Rather than trying to get the large established payment processors such as paypal to accept bitcoin we should focus on ones that are coming to market as they might accept bitcoin in order to get more customers.

Here is one I discovered is in pre release called paybox - http://bit.ly/cLiagE



Hmm, why does this look like a scam to get you to fill surveys and they get paid for it? I mean, $50 for anyone + $5 a day + $5 per referrel *but* the $ does not mean dollar, it is just a virtual representation of nothing. Sure, bitcoins are nothing too, but these guys do specify you can't exchange these for anything, nor will you be able to anytime soon. Also, they have web developers on call if something is messy with the site, but no code developer to help if the internal transfer is not working? wtf? Are they not in development?


I think its because they are in pre launch and testing mode. I thought it might be good to contact developers of new products before they came to the market.

I fully understand that, I know what it means to be in pre launch mode, but I'm just collecting the pieces... why the surveys to keep the account active? And more to the point, why only webdevelopers are available for feedback from early birds? Just makes no sense to me, really, but I'm a known and registered paranoid, guess I could be searching for something to complain about.
1575  Other / Off-topic / Re: New payment processors coming to market. on: October 05, 2010, 11:23:17 AM
Rather than trying to get the large established payment processors such as paypal to accept bitcoin we should focus on ones that are coming to market as they might accept bitcoin in order to get more customers.

Here is one I discovered is in pre release called paybox - http://bit.ly/cLiagE



Hmm, why does this look like a scam to get you to fill surveys and they get paid for it? I mean, $50 for anyone + $5 a day + $5 per referrel *but* the $ does not mean dollar, it is just a virtual representation of nothing. Sure, bitcoins are nothing too, but these guys do specify you can't exchange these for anything, nor will you be able to anytime soon. Also, they have web developers on call if something is messy with the site, but no code developer to help if the internal transfer is not working? wtf? Are they not in development?
1576  Bitcoin / Mining software (miners) / Re: OpenCL miner for the masses on: October 04, 2010, 02:02:54 PM
don't have an ATI card, but even after reading those performance-infos i still can't believe that 980something-mega-hash.

5.800khash on a hd4350 makes sense to me, i get around 5-6.000 on a 8600gt, both listed around 100GFlops.
my gtx260 gets ~40Mhash, 874GFlops
i'd expect a hd5870 makes at least 3times as much, cuz it's listed with 2700GFlops,
which would result in around 400Mhash for 3 of those cards,
that's what i would expect, so where's those extra 600Mhash coming from? Huh
it's superior architecture?
if so, my next card will be ati again.  Grin


There's a lot more than GFlops to this equation. Memory bandwidth, for one, will be very important.
1577  Bitcoin / Mining software (miners) / Re: OpenCL miner for the masses on: October 04, 2010, 12:34:43 PM
jgarzik: I tested this against vanilla client to be sure blocks are actually accepted. On ATI 4350 it makes ~5800 khash/s.

Hmm, that's weird. Shouldn't the speed be much bigger, like 10-fold or 100-fold faster at least ?

I mean there was this guy somewhere on the BTC forum who claimed that he's getting 983 Mhash/s (983 000 khash/sec) with just 3 radeons 5870 or something.

Yeah, I'm struggling with how OpenCL compiles kernels and the impact of the work size on performance. It is quite counter intuitive coming from CUDA, as the unrolling of loops and functions actually makes performance worse, as the kernel needs more space. I don't have any numbers for that ATI, but the 4350 seems to be a LOT less performant than the 5870, so it might not be that low.

Once I have hardware to test this for real, I'll compare my approach to this one, so we can learn from each other.
1578  Bitcoin / Bitcoin Discussion / Re: Want to generate the next 2080 blocks all by yourself? on: October 04, 2010, 10:58:51 AM
True, that's why you need to keep up with the difficulty.
1st month : 1 machine
2nd month: 4 machines
3rd month: 16 machines  <== would we be able to get a bulk discount on that Wink
etc.

Or will the difficulty catch up to quickly for that?

The difficulty isn't set by time, but by block count, so yeah, it would go sky high within the 2 first months making this pretty much impossible to scale... you would still get the whole of the generation capacity of the network, though, so as long as you can pay for the servers with ~200k coins, you are golden... but if you try to sell the coins to get US$, you'll be loosing value, so it's kind of chicken and egg, I guess.
1579  Bitcoin / Bitcoin Discussion / Re: Want to generate the next 2080 blocks all by yourself? on: October 04, 2010, 10:36:50 AM
Lets see, 30 days has 43200 minutes.
1 block (50 btc) every 4 minutes = 540000 btc.
540000 * 0.06ct = $32400

Man, that's a nice extra the first month Wink

There, fixed it for you Smiley

It will work for the first month, then you get 3 or four of these US$1k/month machinery going after the same thing, but difficulty needs to creep in and even the playfield. So after the dust settles you will have made a buck, a bunch of them actually, but once we're back to 6 blocks/hour we're in the 220k~250k coins generation per month, which nets you US$15k. Very nice, it you don't sell the coins... and there aren't a bunch of people doing it.
1580  Bitcoin / Bitcoin Discussion / Re: Bitcoin license/custom plates for cars.... on: October 04, 2010, 10:11:52 AM
License plate with BC address: +1, we don't have the customized plates here, and I don't think it's legal to add anything resembling a license plate, but it still is pretty cool Smiley

As for paying your toll with bitcoins, how would they be able to subtract the coins from you, based on your address? Unless it's a service mybitcoin provides...
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