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Showing 20 of 35 results by yordan
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Board Development & Technical Discussion
Re: BlockchainLess transactions
by
yordan
on 26/03/2013, 03:46:08 UTC
It sounds like a good idea.  Where is somebody that's going to explain why it's not feasible, practical, safe, whatever?

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Topic
Board Development & Technical Discussion
Re: Where can I learn in more detail exactly what the computers are doing to mine?
by
yordan
on 26/03/2013, 03:40:37 UTC
I keep seeing over and over that "to mine bitcoins your computer has to solve mathematical puzzels".  OK that's a little vague.  Where can I learn more about what exactly is required to generate a block and how the difficulty changes?  I wouldn't understand the code itself but a technical paper with some diagrams would be interesting.
Start with this picture:
http://spectrum.ieee.org/img/06Bitcoin-1338412974774.jpg

Then read up on the topics that interest you the most.

That's exactly what I'm looking for but I got lost on 'nonces' and what data it's being added to to change the hash value and why.  Moving right a long though to way over simply is this the problem that's being solved:

1.) There is some existing data based on all passed transactions.

2.) Everyone collectively in the network is taking that existing data, adding a nonce to it and creating a hash - completely at random.

3.) They're looking for the hash that starts with X 0's that's created by a set of existing data plus a random nonce.  I can't tell what the character combination is exactly but looks like upper case, lower case and numbers - 62 combinations?  This means that each difficulty step can be accomplished by adding more leading 0's.  Each success leading zero is an exponential (or is it logarithmic?) step up in difficulty because it becomes 0 - 62 possible combinations 00 - 62 * 62 possible combinations 000 - 62 * 62 * 62 possible combinations and so on.

Is that right?
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Topic
Board Development & Technical Discussion
Re: Idea: Subchains with only a legal, not technical, connection to the blockchain
by
yordan
on 26/03/2013, 03:24:27 UTC
Quote
Why not batch them just like credit card transactions?  You get a middle that's willing to deal in hundreds of thousands of tiny transactions and then process them as larger transactions every X time period.

This suggestion is not relevant to the problem I'm talking about nor the solution I'm proposing.  I notice on another thread you're asking how mining works.  It is understandable that without a clear picture of how mining works and how blocks are formed, it's not clear why doing this won't help.  Hang in there though, with Bitcoin there comes a lot to learn, and you've got the right kind of mind to be helpful.

I know how the mining works in theory.  I was curious about exactly what problems they're being asked to solve.  But now I see what you mean.  While the 2nd half of batching the transactions into larger amounts might work in theory the first part wouldn't because the small transactions from the end user to the middle man wouldn't get processed for being too small...   Is this what you mean?
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Topic
Board Altcoin Discussion
Re: [INFO] Getting Started with Litecoin Mining [INFO]
by
yordan
on 25/03/2013, 16:56:13 UTC
How can I also use some Nvidia GPUs?
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Topic
Board Development & Technical Discussion
Re: Funding of network security with infinite block sizes
by
yordan
on 25/03/2013, 16:52:24 UTC
OK clearly some creative solutions might be needed in the interim, that's granted.  But, when and if Bitcoin achieves a really wide level of adoption - let's say a Facebook level - and of course the effects of Moore's law - what if the client was re-writen to require everybody that's running it to do a little mining?  I'm not a mathematician but I bet there is one on the forum that can tell if this is viable...  Let's just say Bitcoin has a billion users and each and every one of them dedicates 10-20% of their CPU power for a couple of hours per day - would that be enough to support the network?
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Board Development & Technical Discussion
Re: Idea: Subchains with only a legal, not technical, connection to the blockchain
by
yordan
on 25/03/2013, 16:35:58 UTC
I had this idea that I thought might be a real feasible way to scale Bitcoin in a manner that allows an infinite number of transactions (including small ones) to benefit from blockchain confirmation, which is a finite resource.

I think most everyone who understands Bitcoin understands that it's not sustainable for every node to hear and relay a 1 kilobyte message each time anybody anywhere buys a pack of gum or a soda pop, or reads a newspaper article.  It's just not realistic and a terribly inefficient use of resources.  We expect transaction fees to eventually be a controlling force as to what's worth putting in the block chain, and at some point, that fee is going to exceed the value of many of the micropayments people would like to put through Bitcoin, making on-blockchain transactions of such a size totally infeasible.

Why not batch them just like credit card transactions?  You get a middle that's willing to deal in hundreds of thousands of tiny transactions and then process them as larger transactions every X time period.  Granted you have the risk the transactions won't go through but that exists outside the bitcoin world too.  Maybe to make these small batched transactions users need something like a verified address to engage in such transactions.
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Board Development & Technical Discussion
Topic OP
Where can I learn in more detail exactly what the computers are doing to mine?
by
yordan
on 25/03/2013, 16:21:08 UTC
I keep seeing over and over that "to mine bitcoins your computer has to solve mathematical puzzels".  OK that's a little vague.  Where can I learn more about what exactly is required to generate a block and how the difficulty changes?  I wouldn't understand the code itself but a technical paper with some diagrams would be interesting.
Post
Topic
Board Mining support
Re: How to on SuSE Linux
by
yordan
on 25/03/2013, 15:42:41 UTC
install ubuntu.
I don't have the option to change the US right now...
no one have the power to change the US except lobbyists. why is that relevant?

if you should not change OS, you should probably not mine either

OS it's a typo.  Why can't I just use SuSE?
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Topic
Board Service Announcements
Re: Daily Bitcoins new ad system - 0.01 BTC bonus!
by
yordan
on 25/03/2013, 11:20:42 UTC
We are proud to launch a new ad system on Daily Bitcoins, the first and most popular Bitcoin faucet.
Ad slot sharing time is proportional, so number of impressions you will receive is equal to the daily bid you placed. You can start advertising from as low as 0.0001 BTC! No more commission fees charged by third-party ad networks!

We are giving away a 0.01 BTC bonus on advertiser's account for each user who writes his username in this thread. Please sign up before claiming the bonus.


How and where do I register exactly?
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Topic
Board Beginners & Help
Re: World's First Bitcoin ATM Is Announced - First Location: Cyprus
by
yordan
on 25/03/2013, 11:13:41 UTC
Jeff Berwick has apparently been busy? Any thoughts on his Bitcoin ATM going to Cyprus?

http://dollarvigilante.com/blog/2013/3/25/worlds-first-bitcoin-atm-is-announced-first-location-cyprus.html

Seems a little late for that market.
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Topic
Board Mining support
Re: How to on SuSE Linux
by
yordan
on 25/03/2013, 10:49:40 UTC
install ubuntu.

I don't have the option to change the US right now...
Post
Topic
Board Economics
Re: Why Are Bitcoins Worth $70?
by
yordan
on 25/03/2013, 10:48:34 UTC
I understand that the market reaches this consensus through buyers and sellers placing their bids and asks on the exchanges, but WHY is a Bitcoin worth that price?

If Bitcoins were at $50 right now we would all probably think that was completely reasonable.  If they were trading at $1000 a Bitcoin we would accept that too.  Do buyers just pick arbitrary sell prices in their head, and then sellers pick arbitrary buy prices, and then the market reaches a consensus?  Does anyone actually have a good understand of this or is there no "good answer".  Thanks.

Looking at a recent chart it looks to me like Cyprus is responsible for the move from ~$47.50 - $70+
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Topic
Board Economics
Re: Krugman makes some good points
by
yordan
on 25/03/2013, 10:46:46 UTC
I agree that Krugman is a complete and total idiot and/or a fraud and that Bitcoin has little to fear from deflation.  The infinite divisibility helps to mitigate the upper limit of bit coins which will really never actually be reached but will just become smaller and smaller - the pay out gets halved over and over till infinity right?

Anyway if it stops or just becomes very small no matter.

One thing I disagree with though is the guy that said if deflation is -8% and people want a 5% return they'll just loan at -3% - this is impossible.  Interest must be positive otherwise why would someone make a loan which involves so element of risk to earn less than sitting and doing nothing which involves no risk?  I believe in this environment interest would need to be positive but it could be very slow.  If Bitcoins are forever becoming more valuable then very low rates of interest could pay off big.

Either way I think it's a totally false statement promoted by the powers that be that have something to gain by the status that deflation is so disastrous. 
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Topic
Board Mining support
Topic OP
How to on SuSE Linux
by
yordan
on 25/03/2013, 09:53:52 UTC
Anybody got a how to for mining on SuSE linux with Intel CPUs and Nvidia graphics cards? I found a couple but they didn't work.   I hit a brick wall when installing opencl/pyopencl.  Wouldn't compile and the zypper package I found didn't work either.

Any help greatly appreciated.
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Topic
Board Hardware
Re: BTCFPGA bASIC updated from 54GH/s to 72HG/s
by
yordan
on 25/03/2013, 09:50:12 UTC
Quote
With two clusters on the larger unit, it will conservatively produce 72GH/s.  Yes, this is very good news - a 33% increase in hashing power!  Yes, this means the 27G unit now becomes a 36G unit.

From https://www.btcfpga.com/forum/

Those ordering from Tom are happy!-)

The website is down where I can find info about this?
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Board Beginners & Help
Re: Whitelist Requests (Want out of here?)
by
yordan
on 25/03/2013, 08:29:29 UTC
I feel like I've been logged in for way more than four hours (more like 6) and I have made a lot more than 5 posts.  What do I have to do to post?
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Topic
Board Beginners & Help
Re: I hate the newbie restriction >:(
by
yordan
on 25/03/2013, 06:48:29 UTC
Agreed
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Topic
Board Beginners & Help
Re: What if..
by
yordan
on 25/03/2013, 06:46:25 UTC
What if say everyone stopped mining, would bitcoin collapse?

It doesn't work if nobody is mining.  The transactions will not be confirmed and no coins will move.
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Topic
Board Beginners & Help
Re: Wallet backup
by
yordan
on 25/03/2013, 06:42:53 UTC
Quote

The only two clients that I can think of that meet those requirements right now are Electrum and MultiBit.

You might also consider using the web hosted wallet at https://blockchain.info/wallet

With blockchain.info the wallet that they store at the website is encrypted, meaning that only the person with the encryption password (you) are able to spend any of the bitcoins hosted there.  They have the ability to configure the wallet so that it sends you an encrypted copy of your wallet every time you create a new address.  This way if they ever cease to exist, you can decrypt the wallet and load the information into some other client and still access your bitcoins.

Now we're talking.  That sounds quite cool.  And the backups out of blockchain.info are easily imported to any other client including the standard bitcoin-qt?

Are there any drawbacks to blcokchain.info and electrum and multibit for that matter?

How do we know that blackchain.info isn't a giant trojan that's collecting passphrases and waiting for the right moment when they have millions of dollars worth stored there to abscond with?  I know it may be a ridiculous question but in matters like these I think skepticism is healthy.
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Topic
Board Beginners & Help
Re: Wallet backup
by
yordan
on 25/03/2013, 06:38:06 UTC
I read your post but I don't see how it answers the question. You just say there is a problem with hidden addresses.

You DO NOT need to back up your wallet after each tx (the more technical details were to try and explain that you do still need to make regular backups).


So I'm still curious what happens if I do not do it.  Besides the hidden address issue.  What if I just make a bunch of spend transactions and I haven't backedup?

Thanks.