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1  Bitcoin / Development & Technical Discussion / Batch-Address Generator on: June 18, 2011, 06:07:49 PM
I was wondering if something like that already exists. A simple (command line) tool that you point to a given wallet.dat file and generates a defined number of new addresses out of it and writes them on the console/in a file.

If it doesn't exist I would like to try to write something like that. I tried looking into the source of the official client, but since I don't even know what exactly to look for this turned out to be rather pointless.
So I was wondering if anybody may can give me a few information on how addresses are generated or where I should look in the official client source. I know it's not a that important project or that urgently needed tool, but I actually just want to try it for the sake of programming and trying Cheesy (or in short to just give me something to program) Of course I'll make it open source and provide you with the outcome if you're interested in it.

I guess a sort of step-by-step explanation on how to generate new addresses would be the best start, like 1) read that and that part of the wallet; 2) use that and that algorithm to generate an address; or something like that.

As always, thanks in advance for any productive answers.
2  Bitcoin / Bitcoin Technical Support / Problems with Bitcoin related sites on: June 15, 2011, 03:35:17 PM
Is anybody else having problems accessing sites like this forum or MtGox these last few days? I know that MtGox has been under DDoS attacks lately, so that answers that, but the forum too? It's sometimes not loading at all, sometimes (like now) just very VERY slowly and then everything's normal again. I don't think it's my connection since everything else works fine (YouTube, Google etc). I'm located in Central Europe, if that maybe has anything to do with it.
3  Bitcoin / Mining software (miners) / Mining programming-related questions on: June 15, 2011, 10:25:48 AM
(I hope this is the right forum, if not sorry and please move it to the correct one  Lips sealed)

First of all: Regarding my programming "skills", I guess I can be called a novice with a little bit of advanced knowledge in writing programs. I am/have been working with Java, ANSI C and C++ for several years, and though I'm still far away from being a really good programmer I think I can say I learn very quickly once I've set myself a target on what I want to achieve. With that being said...

I'm trying to get a basic understanding on how the miners (especially the GPU miners) are working, how they're structured and what you need to build one. I've heard the term kernel a few times, so I guess there are a few trusty kernels that are specially built for the hash-calculating operations on GPUs (using OpenCL if I'm not mistaken) and if I've understood the principle correctly one just builds a miner on top of these kernels (please correct me if I got this wrong, as said before, I'm not very well-read on that topic).
To come to the point, I have a little project in mind which involves maybe building a mining-program and I was hoping you guys can maybe point me to some tutorials/examples or give me a few tips or so. If this little project succeeds I'll of course share it with you if you like Cheesy Though I can't tell you exactly what it'll be simply because I myself first have to see it through.

Thanks in advance!
4  Bitcoin / Mining / My first "beginners" rig on: June 11, 2011, 04:02:00 PM
So yeah, I've decided to build a small mining rig (at least small for now since I don't have that much money available) and I was wondering if you could maybe give me some advice or comments on the parts:

SAPPHIRE HD5830 Extreme1x (later 2) 91,90
Biostar A870 54,90
AMD Sempron 140 30,99
SilverStone ST50F-P 71,90
Kingston ValueRAM DIMM 2 GB DDR3-10661x 19,26
Total 271,98

The only thing I'm a bit concerned about is if the PSU with 500W will be enough to support 2x 5830s (though I guess it should be enough). I know one shouldn't skimp on the PSU, but then again, for now I'll have to keep the total costs as low as possible, and it at least has a 80 PLUS Bronze certification.
I will probably buy an USB Flash Drive and run Ubuntu 11.04 on it, but I'm wondering which installation would be better, Ubuntu Server minimal installation and just installing Gnome afterwards or should I just go with the normal Ubuntu Desktop installation?

Thanks in advance for every hints/comments/recommendations.
5  Bitcoin / Mining / Solo mining chances? on: June 11, 2011, 08:46:42 AM
Hi everyone, I started to take an interest in BitCoin just recently (2 weeks ago or so) and even though I have a rough idea of how this whole concept works, there's still one thing that I can't wrap my head around: Are the _chances_ (not the speed) of finding a block when solo-mining equal when you have a low-end equipment (e.g. a GTX275 with 66 MHashs/s) compared to an actual rig built only for mining? I'm having problems understanding how exactly a new block gets accepted into the block-chain. IIRC the hash calculated has to start with a couple of 0, but is that the only requirement? Or is it also determined by how much work calculating this hash was put into?

Sorry for the newbie questions, I read through the wiki and the beginners guide on the forum, maybe I missed the part where exactly this is answered. If so I'd be happy if you could give me a link to the explanation.
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