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3261  Economy / Marketplace / Re: Bitcoin Services in East-Europe (need help) on: December 18, 2010, 12:41:59 PM
Tell me please about your project, how did you buy bitcoins? You invested from  your own wallet and now want to resell? I believe you bought them in large quantities so you'd pay less.

Yes, I went to IRC channel #bitcoin-otc (search forum here if you don't know it yet) and found two people, which accepted paypal transfer. Then I buy MTGOX USD from them in almost 1:1 for normal USD. I offered them 3% transfer fee, but I think you mayl find somebody who will accept 1:1 without fees (I was newly in bitcoin and want to try it asap). Then I traded MTGOX for Bitcoin for price which I liked.

Now when somebody contact me, I go to mtgox site, look at BTC/USD rate, add my premium (I sold bitcoins for 0.3 USD before three days). On national site (patria.cz) I see USD/CZK ration, so then multiply 0.3 * 18.8 and get 5.64 Kč / BTC.
3262  Bitcoin / Project Development / Re: Bitcoins in Space! on: December 18, 2010, 12:08:22 PM
Running bitcoin client on it is really pointess. I guess community can be interested in logo / QR code on satelite itself. I will certainly donate it! It can give us some attention from screntific or mainstream media
3263  Bitcoin / Pools / Re: Cooperative mining (>2000Mhash/s, join us!) on: December 18, 2010, 11:59:53 AM
Just wanted to announce here that my miner now has some fixes related to pool usage. It should cycle over network problems. Also, mining is done in a separate thread to avoid performance drops due to IO.

Perfect! That is great news! Users of m0mchil's miners, please
a) update to latest version
b) send them a donation (maybe some % from your mining rewards)
3264  Bitcoin / Pools / Re: Cooperative mining (>2000Mhash/s, join us!) on: December 18, 2010, 11:56:58 AM
Users are saying me about their workers crashes very often - by email, personal messages or on #bitcoin-dev. Please note that I'm actively developing it and there are approx. three restarts of application per day,  each under one second of outage. It means that whole-day site availability is more than 99.996%! There are 20 requests per second already and there is no timeframe when I can restart server without refusing few connections.

Your miner was originaly designed for talking with bitcoin client on local computer or local network. There are no network issues. So exception/error handling in miners are not bullet proof as it could be, they crashed when connection is broken during request and so. Please, if your miner crash, copy error message you get, write polite message and ask to fixing this bug with error message attached. Then send to jgarzik, m0mchil or Diablo-D3. In the most cases, fixing of those errors are pretty easy, but authors needs reporting from you! Don't rely on others, YOU can get it better! Please, then consider donation to miner author. He is fixing it in his free time because you want to earn some bitcoin :-).

Also it is pointless to howl on PM when you see service is working again. I cannot do anything in this case. Of course contact me in any case when you experience some continuous problems with service, I will take care.
3265  Economy / Marketplace / Re: Bitcoin Services in East-Europe (need help) on: December 18, 2010, 10:58:33 AM
I'd like to start some services with Bitcoin for three east-European countries: Hungary, Bulgaria and Romania.
What do you think, is it a good idea to have an Mt.Gox-like exchange for these 3 currencies and euro?

I think it is too early for creating new exchange site for those currencies (except Euro, which maybe mtgox will support sometimes). Low volume and large spread will make exchange ever more dead.

[/quote]
Also, i was thinking of having a service like the one that Madhatter provides (Bitcoin2CC) but only for the Bulgarian, Romanian and Hungarian currencies. For this, I am asking publicly for his expertise, if he's willing to share.
[/quote]

Yes, I think it is good idea. Buy large amount of bitcoins for USD (you can optimize transaction fees once you trade bigger amount) and sell/buy it in local currency, maybe for fixed ratio to USD. Also don't forget to registrer on http://bitcoinbuy.com. Looks pretty crappy as it is only spreadsheet, but it is good stumb for better list of exchangers for future. People already contacted me using this site.

Quote
I want to start a Bitcoin-selling webiste, where people can buy for SMS and/or debit card. How can I do this?

My advice - start selling for cash, by bank transfer or by personal. Make only simple web site, if need. Invest to SMS system and automation once you will see there is demand. You don't miss anything, you saves your money and can start RIGHT NOW.

I'm doing the same for Czech Koruna in Czech Republic. I bought bunch of bitcoins and now selling them by smaller chunks. It is fun, it does not cost anything and once there will be demand, I'm ready to make it professional.
3266  Economy / Marketplace / Re: New Exchange (Pizza4BTC) on: December 18, 2010, 10:17:16 AM
<Italian accent>
Good day, I'm Mario of Marios Pizzas.

I got your letter for joining your pizza site. I have one question:

What are bitcoins?

Best regards,

Mario
</Italian accent>

Wink

lol +1. I tell again - get rid of bitcoin in this stage. As you already wrote, it may be transparent for restaurant that some geeks are paying in bitcoins. Simplify your service to "pizza market" for them. Restaurant become interested in bitcoin once they will see there are pizza orders.
3267  Economy / Marketplace / Re: Bitcoin Services in East-Europe (need help) on: December 18, 2010, 10:12:52 AM
transfers via bank account, it is free within Europe.

Forget it, maybe in West Europe or in euro zone. There are big commisions on local currency<->EUR rate by banks and fees for international transfers, sometimes going over 10% (depends on amount). It is definitely easier to pay with credit card to abroad. It is faster and cheaper. But yeah, there are chargebacks.
3268  Economy / Marketplace / Re: New Exchange (Pizza4BTC) on: December 18, 2010, 08:38:23 AM
Is anyone available and interested in proofreading and possibly offering helpful revisions to this letter I have prepared for sending to hundreds of restaurants in the pizza industry in regards to the website I am developing?

I think it is not too bad, only two points:

a) Letter is maybe too long. If you don't attract them in first paragraph, they don't read until end. Firstly talk about their benefits, not about technical solution. Don't start with bitcoin on the first place; people will be confused instantly. Firstly explain your business without any information about payments, because it is _not_ the most important for restaurants. Tell them you are working on first around-world pizza market with geolocation services, ingredients selector, and don't forget to explain putting their business here is theirs _free dvertisment_ and they can attract more people. By the way, Internet geoloc services are hype now, I think progressive restaurants will be interested in. On the end you can tell him that your money for payments are bitcoins and explain advantages (free transactions, secure, ...) and explain them that tey can or cannot accept bitcoins directly (if not, there will be btc2usd middleman). Simply don't tell them the main concern is bitcoin itself, they will not catch it.

b) There is not clear what they should do RIGHT NOW. THere should be clearly written "DO THIS AND THIS" to get it working. Nobody will be interested in ping-pong mailing or filling pages and pages of forms. This is also about web site. Is it really needed to have "Mother superios" in options for Title in registration form?? Make whole process as simple as possible! If you will need some extra information later, you will ask them once you will see they were interested in filling short, simple registration. Registration is not available now on the site (or I cannot find it now), but as I remember, there was also captcha. Why? AFAIK no bots there yet. And it is another point where business owner can refuse it's participation, when he is not too excited. It is fact. By the way I often have to rewrite captcha more than twice. Really annoying and no reason here.

But I keep fingers crossed! I'm planning to talk my local pizza company in heart of Prague for "open account" to my name next week.
3269  Bitcoin / Pools / Re: Cooperative mining (>1700Mhash/s, join us!) on: December 18, 2010, 02:18:39 AM
Well done, fifth block is arriving!
3270  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 18, 2010, 02:08:13 AM
Three good news.

a) We just find fourth block http://mining.bitcoin.cz/stats/
b) We crossed over 2000mhash/s
c) I set up automatic script, so rewards will be sent every six hours (UTC 0:00, 06:00, ...)

But I'm too dumb to make jgarzik's work so i'm sticking with the little guy.

Send me PM with commandline you run, I will try to help. jgarzik's miner is not 'pre-configured' for working with this pool, you need to pass correct arguments.
3271  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 11:16:56 PM
Anybody know Puddingpop's server and I'm absolutely OK with it. Must say that it has its pros and also cons Wink. But please don't continue in flame in this thread or I will begin to moderate it. Open your own thread and discuss freely.
3272  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 09:53:14 PM
I updated server and had to restart service. Many workers probably crashed down - hashrate is slowly going down. Unfortunately there is nothing I can do with that. Please ask your miner author to improve error handling. Miner should catch an exceptions around all network methods and data parsing or restart itself when receive corrupted data.

From my experiences, Diablo's miner is very stable in these cases (but I already see it crashed during tests). It would be great if also other authors improve their error handling, as internet is nothing rock stable.
3273  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 09:23:45 PM
I am very interested, however, in knowing why he doesn't want to release it.

I'm groofing around for few months and didn't read single criticism that mtgox or mybitcoin are closed source. Or even Flattr, service for opensource project donations. All three are handling your money, but mining server do not keep any large amounts and you can even calculate that it does not hide money (in mtgox and mybitcoin and flattr you can check this only by 'run the bank'). Personally I'm surprised why suddenly everybody care in opensource pool _service_. This is internet service like thousands others. Please don't flood discussion about open/close source in this thread, it should be discussion about service and it's support for pool users. My reason for close source is _exactly_ the same as for mtgox, mybitcoin and flattr projects.
3274  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 05:45:52 PM
It seems reasonable that we could work on a patch for mainline bitcoin that supports pooled remote mining.

Honestly, I think it is definitely not the feature what people need in bitcoin client itself. If we are talking about mining and bitcoin client, I think better feature is to allow mainline client to _connect_ to another client's getwork, so common people can make private mining pool by itself or connect directly to public pool. In case of private pool, there is not even need of accounting. In fact, I think it should be extremely easy to allow this, but my C knowledge is too poor to submit patch.

And if you need any general feature request for client, I'm more interested in subscriptions/repeating payments feature. Of course it can be also done by standalone software and RPC, but we need this inside client itself, because merchant then can rely on this feature.

This is little bit offtopic here, so if you have anything to those ideas, please open new thread.
3275  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 05:20:47 PM
Quote
2010-12-17 18:14:24.706142
Testnet: False
Send 82.12 to 1B7SvpLs2bmB8mGX2Bqdqn8UToTB1qgwUd
Send 0.63 to 17PSyYGLGQj7okX3Aj6cWDXRoxqwD4cByA
Initial balance: 86.82, sent total 82.75 for 2 people, time 0.3 sec

Next block confirmed. All rewards are cleared now. The rest is under its send threshold. Looking forward next block!

P.S. 82.12 is my reward for three blocks; there was not enough balance in last sending and I had more than 60% share on first found block.
3276  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 03:53:40 PM
That way we could continue the project if you ever get bored and decide to quit or are unable to continue for some reason outside your control.

Mtgox and MyBitcoin are close source. I think shutting down those sites will have much larger impact on bitcoin network and nobody is asking for opensource it. I honestly promise that I'm not cheating and do not plan to do that. I also promise that I will fully open sources if I get bored by running service.

Code:
Generating inside a pool doesn't increase your overall Bitcoin reward.

You do not need to tell me this, I already know it. But it is exactly the same as single versus pooled mining. Pooled mining does not increase my reward in any way, but receiving smaller pieces frequently is much more safe than waiting week for a block. It has also psychological effect.

 There is nothing else than I want to see my children is growing. And I'm looking forward pool will generate block almost every hour :-). I believe all bitcoiners will understand this, at least until they will periodically receive corresponding rewards from my server.
3277  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 02:27:54 PM
Somebody sent me the first donation, thank you very much :-).
3278  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 02:00:58 PM
hey slush,

do you feel like opening the source of your web interface ?
could give you a hand with impementing some stuff and polishing it

it's Rails isn't it ?

No, it is Django.

About opening source: I like coding it and currently do not need a help, thanks. I wish to open critical app parts for 'security review' soon, but I probably do not open source it fully. It is a service, as mybitcoin or mtgox is.
Pool is strongest when there is plenty of mhash/s, so I have no motivation in creating another pools.
3279  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 01:26:17 PM
I suspect that 32 bits of zeroes = a difficulty of 1? (i.e. the original and easiest difficulty?)

Exactly!
3280  Bitcoin / Pools / Re: Cooperative mining (>1500Mhash/s already, join us!) on: December 17, 2010, 12:00:59 PM
Oh, too much traffic here  Smiley

Quote
What's the current difficulty value for miners to get a share?

32 is not difficulty, it means that target have 32 bits of zeros. You cannot compare this difficulty to global difficulty. 32 bits of zeros leads to ~1-2 blocks at 1000khash/s.

Quote
It shows my reward is 0.00237 BTC

This is the rounding rest, reward from previous round was already sent to you. Reward for current block is calculated when block is found.

Quote
The instructions say to use one registered miner for each remote miner instance connected. Does this mean multithreaded miners need to be limited to 1 thread only? Will running them with multiple threads confuse the share algorithm?

1 instance == 1 piece of software, NOT computer, NOT CPU/GPU core. Everytime you run miner software, each of them must have different credentials, otherwise your shares will not be correct.

Quote
Hey, going to throw in my Radeon 5970 for fun Smiley wait a couple of hours and you'll be over 2Gh/S

Thanks, it is second 5970 in pool :-)

Quote
did someone manage to connect jgarzik cpu miner windows build to the pool?

Yes, it is working. No special settings for Windows. You probably have bad URL, connection or whatewer.

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