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votes
1answer
217 views

Can I invest in GLBSE on GLBSE?

With the new design it's starting to take off. I want in on GLBSE itself, is this possible or are there any plans for it to happen?
3
votes
1answer
478 views

Is there a guaranteed hash for every block? [duplicate]

Possible Duplicate: Nonce size - Will it always be big enough? My question may be misphrased, if so, I'll correct it if you let me know in the comments. My understanding of mining is that the ...
8
votes
4answers
6k views

Will transaction confirmation time be reduced as the network size increases?

Right now it takes 6 confirmations, which takes about an hour to verify a transaction. Will the rate at which transactions confirm become faster over time?
5
votes
2answers
1k views

Looking for a better way of listing all my peers

I am looking for a cheap and efficient way (rather than hacking through the Bitcoin source code) of listing my peers. Something I have come up with: #!/bin/bash netstat -p tcp -nba | grep '.8333.*...
12
votes
1answer
5k views

How does one make multisignature transactions with the bitcoin client?

With the release of bitcoin version 0.6.1rc2, it is now possible to do M-of-N required signature transactions in the main network. But how does one actually perform such a transaction? I've been ...
3
votes
1answer
226 views

Where can I find a graph of average transactions per block over time?

Is there a website where I can view the size of the memory pool over time, or the average number of transactions per block?
7
votes
1answer
28k views

What is the most cost effective GPU mining rig?

I'm looking for specific part numbers for CPU, GPUs, motherboards, cases, etc. Assume power doesn't matter. Also, what sort of hash rate does it get?
7
votes
4answers
8k views

How can one download the initial Blockchain data files securely?

I see several sources for binary downloads of the Bitcoin blockchain. Can any of these be used securely?
7
votes
1answer
220 views

What are the most notable attacks on pools?

Since Bitcoin's inception there have been several attacks on mining pools. There was the Linode problem, where some 46,000 BTC were stolen from pool accounts. What are some other notable attacks on ...
8
votes
1answer
549 views

Who made Gavin project leader?

I mean no disrespect to Gavin Andresen whatsoever. I think someone needs to be at the head of the project and Satoshi has stepped down / disappeared / gone back to the NSA / returned to his home ...
3
votes
1answer
1k views

Linking a transaction to a Bitcoin user

Has anyone tried and perhaps succeeded at linking a transaction to a possibly controversial site (such as Wikileaks) to a Bitcoin forum user by their forum signatures? I know a lot of people disclose ...
0
votes
1answer
182 views

Do the DNS servers make Bitcoin more secure than the IRC channel? [duplicate]

Possible Duplicate: How secure are the DNS servers for Bitcoin? In earlier version of Bitcoin the IRC channel was used to seed initial peers, and as of version 0.6 it was largely replaced by the ...
6
votes
1answer
1k views

How secure are the DNS servers for Bitcoin?

With the version 0.6, Bitcoin introduced the DNS servers that populate the initial peers for new clients. How secure are those servers in terms of being immune to takedown attacks, or injection of ...
8
votes
1answer
4k views

How do I mine with FPGAs?

I'm not entirely sure how FPGA's work... Do I simply buy a ZTEX and it mines, or do I need to plug it into a computer via USB? Can I chain them? I'm so confused.
148
votes
2answers
45k views

How do Bitcoin clients find each other?

What protocols or algorithms are Bitcoin clients using in order to find their peers? I learnt that BitTorrent clients may rely on central computers called trackers. Do Bitcoin clients need any kind of ...
12
votes
3answers
6k views

Error loading wallet.dat: Wallet corrupted

I've been using bitcoin for over a year now without issues. It's been a while since I fired up a bitcoin client though, at least a couple months. When I try running a bitcoin client (bitcoin-qt ...
7
votes
1answer
5k views

How to import a private key to an encrypted wallet (on standard client)

I have a standard client (QT client on OSX) with an encrypted wallet. I've tried to import keys with pywallet, but while it claimed to be importing them, when I ran again the bitcoin client, it said ...
3
votes
2answers
346 views

Is support@pi.uk.com the real blockchain.info's support address?

Currently blockchain.info lists that address in the "about us" page, but since the site is behaving erratically, I wonder if it's the real address or a phony one. I.e. if the site was hacked, the ...
11
votes
1answer
2k views

How many unspent transaction outputs are there?

I was wondering the other day how many unspent transaction outputs there are ? If you just keep track of the unspent transaction outputs you could import private keys, know its balance and perform ...
2
votes
1answer
486 views

What is the story behind MyBitcoin?

The name of MyBitcoin eWallet comes up quite often here and there. What is the story behind it and the attack on it they claimed occurred?
18
votes
1answer
2k views

Was a timejacking attack ever performed?

The timejacking attack appears to be a pretty straightforward attack to pull off successfully. I was wondering, whether it was ever performed and documented somewhere, or was it just theoretically ...
2
votes
2answers
55 views

When I have a problem running the bitcoin client, where can I go to get help?

Let's assume that either a bug report exists already, or the problem is unlikely to be caused by a bug. What I know so far is: This site will be appropriate for some support questions, and the ...
3
votes
2answers
588 views

What is the state of Witcoin?

There used to be a forum site called Witcoin. It was interesting in that in order to post, you'd have to pay bitcoins, and when someone replied or upvoted, you made bitcoins. The site went away. ...
3
votes
9answers
1k views

Which notable Bitcoin-related sites offer referral rewards? [closed]

TradeHill used to offer a referral bonus when you got other people to sign up with your link, and there are a couple other sites that offer similar rewards for referrals. Which notable Bitcoin-related ...
10
votes
3answers
2k views

Which exchanges are Tor-friendly?

Mt. Gox's sign-up page states: Please be advised that accessing your account via the Tor network and/or public proxies may result in a temporary suspension of your account, and having to submit ...
6
votes
2answers
600 views

Does it take longer to generate an address when I stop and restart vanitygen?

I want to generate a bitcoin address. I start vanitygen, but a power loss occurs. Now I restart vanitygen. How does this affect the time to generate the address?
4
votes
1answer
317 views

What client to use for an alternative special purpose blockchain?

Lets say one wanted to create a blockchain for the purposes of providing a scalable back-end for accounting for the trade of some arbitrary unit between people. It would not be a tradeable currency. ...
10
votes
3answers
3k views

What happens when the same wallet (private key) is used on several machines?

Let's say I copy my wallet to another computer and start using it there. What happens? Can both computers send and receive payments to the same address(es) in the wallet? A different scenario with ...
9
votes
2answers
2k views

Is there any Bitcoin Exchange that doesn't have fees for euro SEPA deposits/withdrawals?

Since Tradehill disappeared, which was really sad, I cannot find any Bitcoin exchange that let's me deposit and withdraw euros without fees, while they do for US dollars. Both Mt.Gox and Intersango ...
6
votes
1answer
291 views

What type of hedging might CoinLab be employing?

In the announcement on GeekWire that CoinLab had received seed funding, there was a statement that I found interesting: CoinLab will pay game companies in government currency, not Bitcoin, and will ...
3
votes
2answers
468 views

What can a pool operator do with their miners' hashpower?

This issue came up in this question - Are the miners concerned with what the pool operators do with their hashpower?. What can a pool operator do with their miners' hashpower?
1
vote
1answer
400 views

GUIMiner stuck at 99% Done for over 1 hour

I have just started up my client GUIMiner for the first time. It was downloading the block chain without any issue and got up to 99% where it has been stuck for the past 1 to 1.5 hours. Is this ...
0
votes
2answers
393 views

Bitcoin client 0.4.1.1 stuck at block 176947

Bitcoin client stuck. Tried to rebuild whole blockchain, but it went up to that number and got stuck again. Here's a screenshot: http://vvcap.net/db/2IR75OWyJj5AsUW7eo_i.htp Any suggestions?
3
votes
1answer
127 views

Is an attack on a local bitcoind via an img or embedded flash viable?

In this thread on the Bitcoin forums it was suggested that a local attack on bitcoind might be possible through malformed img tags or (more likely in my opinion) through embedded flash. This also ...
8
votes
2answers
23k views

What does PPS mean/stand for?

On many mining pools/bonds I see things listed as 105% PPS / 110% PPS weekly payout. What does PPS actually mean?
1
vote
0answers
249 views

Are the miners concerned with what the pool operators do with their hashpower?

I've stumbled upon a few posts on the Bitcoin forum about miners claiming that they don't care what the pool operators do with their hashing power as long as they are paid, and some others that are ...
10
votes
2answers
3k views

Historical transaction/trade ratio. Available? Useful?

Blockchain.info lists both "Trade Volume" and "Estimated Transaction Volume" in both BTC and USD. It occurred to me that the ratio of one to the other might be a useful metric in determining how much ...
10
votes
1answer
565 views

Is there time-to-failure data available for any of the BFL products?

Butterfly Labs (BFL) is offering a few mining products which look to be based on some sort of FPGA or ASIC but I can't find any reliable data on what parts they're using or their manufacturing ...
7
votes
1answer
2k views

Why do mining pools require 120 confirms for a solved block before payout?

According to this question here, 6 confirmations can be considered 'secure enough'. Some pools out there also offer payout at 100 confirms but that's still substantially higher than 6. Why is such a ...
8
votes
2answers
478 views

Is there a reliable way to measure bitcoin wealth distribution?

Given the difficult of detecting lost coins, or telling between hoarded and lost coins, it seems impossible to actually report on the real wealth distribution of the bitcoin currency.
3
votes
1answer
501 views

I sent money to a bitcoin wallet from Blizzcoin and there's nothing there?

Using blizzcoin.com I sent bitcoins to the address I have for the bitcoin wallet client, and it took forever to sync the blocks. Once it had finished I was expecting to see the money there, but saw ...
7
votes
1answer
1k views

Does Bitcoin still use the IRC channel?

I recently read an article on Bitcoin Media, that claimed: Jeff Garzik pointed out that Bitcoin-Qt no longer operates using the IRC bootstrap, and on inspection he’s right. This mainly applies to ...
9
votes
2answers
3k views

Is there a way to change the wallet.dat location without changing the entire data directory?

I know that Bitcoin supports the -datadir command line option which specifies that the wallet.dat and blockchain should be stored in a custom location rather than %appdata%\roaming\bitcoin but is ...
8
votes
5answers
10k views

Is there a Bitcoin gadget for Windows 7?

Is there a Bitcoin gadget for Windows 7, which features conversion rate with EUR? (i.e. EUR/BTC)
12
votes
1answer
3k views

Has any illegal data been saved in the Block Chain?

Has any illegal data been saved in the Block Chain, such as an illegal number, or illegal prime?
5
votes
2answers
685 views

Miner speed conversion

What is the exact ratio one would use to convert Miner speed from Hashes per second to Shares per second, assuming Difficulty 1 shares?
5
votes
2answers
647 views

Sale and Purchase Transaction Limits

Is there any limitation on the monetary size of transactions to be paid through BitCoins? I conduct a consultancy business where payments from clients can vary between about $5 for White papers to $15,...
1
vote
0answers
368 views

Runtime error when trying to send bitcoins

When sending coins, an error message pops up saying: "This application has requested the Runtime to terminate in an unusual way, please contact it the applications support team", what do?
3
votes
1answer
683 views

How does the rate of getwork requests correlate with the hashrate of a miner?

In a setup where a standard bitcoind serves full difficulty targets to some mining nodes, how can I calculate the hashrate of a mining node from looking at the rate of getwork requests? Does this ...
5
votes
2answers
997 views

How can I programmatically know when someone sends me Bitcoins?

I'm trying to set up a software system and part of it is knowing when someone sends Bitcoins to me automatically. I'm using node.js, if that matters to anyone.

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