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18
votes
4answers
130k views

Can I damage my computer by mining bitcoin?

I have been mining Bitcoin for a while on a few systems, some CPU mining (which has proved to be basically useless) and some GPU mining. The GPU miners are workstations, which have midrange graphics ...
7
votes
4answers
999 views

World-wide price for generating 1BTC

Can we find an algorithm to compute the average price (as energy consumption) of 1 BTC being generated if we know: hash rate, difficulty, energy price?
41
votes
7answers
92k views

Where are the user's bitcoins actually stored?

On the person's computer? On bitcoin.org? :) Where does that information reside that tells others and me how much bitcoins I have? I assume it can't be on my PC because I could easily hack the file ...
1
vote
1answer
1k views

OS X 10.7 - Where is Bitcoin data stored? [duplicate]

Possible Duplicate: Is there wallet.dat for OSX? Upgrading my HD; clean install and I want to copy the wallett etc from old hard drive. What do I need to copy? Thanks in advance.
7
votes
1answer
677 views

What is op_eval?

I have been hearing a lot lately about "OP_EVAL", what is it? Gavin has mentioned it here: http://sourceforge.net/mailarchive/forum.php?thread_name=201110130938.35014.luke%40dashjr.org&...
7
votes
3answers
2k views

Who controls Solidcoin's special millionaire accounts?

Solidcoin takes the following approach to preventing the 51% attack: As with existing cryptocurrencies, SolidCoin 2.0 stores transactions in a "block chain" which is essentially what it sounds like....
3
votes
2answers
68 views

Where should one suggest new terminology?

What is the proper place to suggest Bitcoin-related terminology that one believes should be used by the community? For example, when one wants to standardise some terms people use to describe ...
10
votes
4answers
415 views

What is the collective name for Bitcoin, Namecoin, etc?

Is there some standard term to describe all Bitcoin-like internet currencies, like Solidcoin, Namecoin and so forth? Like "currency" is to dollar, euro, yen, etc?
5
votes
1answer
1k views

Is an Xcode project for the Mac Bitcoin client available?

If someone wants to mod the Mac Bitcoin client for their own purposes (e.g. reskinning or development of a client with extra features), is there somewhere they could download the existing Xcode ...
9
votes
2answers
37k views

What options are there to combine mining over multiple computers?

Assuming you have multiple (30+) computers, what options are there available to do a distributed solo-mine? Can I have them all checking into one bitcoin application over the network, or do I need to ...
17
votes
1answer
1k views

Speed of operations in the Bitcoin network

Did anyone measure how fast transactions spread through the Bitcoin network? For example, how long does it take for a newly generated block to be propagated to most active clients? Mainly asking this ...
12
votes
4answers
3k views

Who controls the Bitcoin software?

Is there anything comparable to a "board of directors" for Bitcoin or is the software on complete cruise-control?
16
votes
3answers
1k views

What are the advantages/disadvantages of a continuously decreasing block reward compared to the current method?

The current method to control the bitcoin supply to a maximum of 21 million BTC is to reduce the block reward (currently 50 BTC/block) by 50% every 210000 blocks. In this forum post there is a ...
7
votes
3answers
3k views

Largest number of bitcoins at a single address at one time?

What is the largest number of bitcoins that were stored in a single address at any one time to date? I know there were >474320 BTC at this address at 2011-07-18 (identified to be MtGox's from the 424 ...
5
votes
2answers
10k views

Bitcoin alternative designed for NVIDIA

Currently the best graphics cards to mine Bitcoins are all AMDs. What should be changed in the Bitcoin protocol to make the alternative version of Bitcoins better mined by NVIDIA graphics cards? Could ...
1
vote
1answer
244 views

What does the Bitcoin community need the most now? [closed]

The Bitcoin project has grown many-fold since its creation, but since we haven't taken over the world yet, there is still some room for growth;). Is there some consensus on what does the Bitcoin ...
16
votes
5answers
4k views

What is the status on webminers?

Are there any ongoing projects trying to develop a widely accessible WebCL-powered mining software? I've heard of two in the past, but their websites don't seem to be working any more.
8
votes
2answers
418 views

Which Namecoin block was the first one to be generated by merged mining?

For a definitive record is it possible to determine if a namecoin block was generated via merged mining? Is so which was the first one. Which is the first bitcoin block to have namecoin information ...
18
votes
6answers
2k views

Has anyone attempted to make a working voting system using a bitcoin based system?

It occurred to me the other day that the difficult problem of electronic voting could possibly be solved quite nicely using a bitcoin system. I believe it's transparent enough to be trusted. I found a ...
10
votes
2answers
649 views

Can I hide my IP address by blocking incoming connections in the client?

I know that it is possible to find out the IP address of a transaction by connecting the client to every node in the network. Dan Kaminsky wrote: When you are connected to every node, the first ...
10
votes
2answers
322 views

What are acausal blocks?

In this forum post the poster (2112) writes: It is my understanding that at least Eligius pool isn't a "honest node" and intentionally produces acausal blocks (or at least as close to acausal as ...
21
votes
1answer
791 views

Gaming the “off-by-one” bug (difficulty re-target based on 2015 instead of 2016 block time span)?

In this forum post from Gavin Andresen he writes: Second: I've written 'discourage blocks' infrastructure: https://github.com/gavinandresen/bitcoin-git/tree/discourageblocks (code reviews ...
7
votes
2answers
1k views

Can an SMPPS (Shared Maximum Pay Per Share) pool be hopped?

I've looked at the way SMPPS (Shared Maximum Pay Per Share) payout schemes work, and as far as I can tell, there is no significant way to hop such a pool to advantage. Yet I've seen several people ...
42
votes
2answers
60k views

What is a share? Can I find it while mining solo, or only when pool mining?

In mining, what is "a share"? When mining solo, do I "find shares"?
19
votes
2answers
5k views

What happens if my transaction is not accepted because I did not pay fees?

I was reading this thread about a client fork that does not force transaction fees and I noticed the big red warning saying that some coins might get lost if I am not careful. What does this mean? ...
5
votes
2answers
5k views

What does “PROOF OF WORK RESULT: false (booooo)” mean when mining?

I'm mining (Litecoin miner, shouldn't matter) with minerd, and got this in the output: [2011-10-13 07:12:02] thread 1: 5524 hashes, 0.96 khash/sec [2011-10-13 07:12:02] thread 0: 5415 hashes, 0.95 ...
17
votes
4answers
6k views

Is there a way to automatically send bitcoins from one wallet to another?

Say I have 2 wallets, an older non-encrypted one and a fresh new encrypted wallet with all new addresses. If I have an address in the older wallet that may receive some bitcoins in the future is there ...
6
votes
1answer
710 views

`bitcoind` must be different from `bitcoin -server` because one gives an error message the other doesnt

Although the API reference implies that running bitcoin -server is the same as running bitcoind, I get no error message when running bitcoin -server with no bitcoin.conf file but I get teh following ...
17
votes
5answers
4k views

Is there a way to initiate a payment request in bitcoin?

I'm writing a recurring billing system and I want to be able to contact a customer and request a certain amount of money. Is this possible via bitcoin? If not, could a URL be provided the customer so ...
15
votes
2answers
2k views

What are Namecoins?

What are Namecoins exactly, how do they differ from Bitcoins, and how come one is able to merge mine them along with Bitcoins?
15
votes
1answer
4k views

What is NTime rolling/nonce range? And what miners support it?

From Slush's pool's homepage: Pool now supports Long polling and NTime rolling. Older miners have many problems with those new features, which can negatively affect your rewards. Please update your ...
25
votes
7answers
19k views

What Bitcoin Mixing/Laundry Services are availble today?

A Bitcoin Laundry or Mixing Service is a service that accepts BTC payments, and returns the same BTC amount, only from coins that are unassociated to the original BTC. It is a privacy service that ...
12
votes
3answers
2k views

Can someone with 51% computing power earn more than he deserves?

See also What can an attacker with 51% of hash power do? This may have been discussed elsewhere, but I'm not sure what the answer is - if someone owns 51% of the hash power, can't he just ignore the ...
7
votes
4answers
13k views

Is there a graph of Namecoin value over time?

Where can I find a chart (or even raw data) of Namecoin prices over time? NMC Watch doesn't seem to provide a link to historical data, just one day. In BTC? In USD?
13
votes
2answers
1k views

Is “bitcoin” a countable noun?

Should "bitcoin" be used as a countable noun admitting a singular and a plural (so that one says "600 bitcoins are in this wallet") or as a mass noun, (like "water" or "money") (so that one says "How ...
6
votes
2answers
758 views

Is there a uniform measure of “difficulty”, that when multiplied by price, will give “profitability of one hour of mining”?

I recently open Bitcoin Pie, a site that compares crypto-currencies. Given the exchange rate in BTC, I would like to add another column that tells "relative mining profitability", regardless of the ...
8
votes
3answers
14k views

Do I need a wallet to start mining?

Oh, sorry. The question is really simple: Do I need a wallet to start mining and "keep" this bitcoins? or Can I just stay with my bitcoins in my computer?
18
votes
5answers
19k views

When building bitcoind, I receive error “headers.h:36:20: fatal error: db_cxx.h: No such file or directory”

When building bitcoind on LinuxCoin (Debian based), I receive this error "headers.h:36:20: fatal error: db_cxx.h: No such file or directory" following the instructions at https://github.com/...
23
votes
5answers
15k views

Is there an open source Bitcoin exchange?

I just found this project, which is described a.t.m as a learning project. Is there a more serious, open source Bitcoin exchange? I'm aware exchanging BTC for fiat money can be quite complex, and ...
8
votes
3answers
733 views

Have there been reports of botnets mining Bitcoin / crypto-currencies?

Is the threat of Botnets using massive amounts of CPUs/GPUs to mine Bitcoin, or some CPU-friendly coin, purely theoretical at this point? Or have there been reports of this actually happening? I know ...
11
votes
1answer
753 views

Is there a limit to how much extra data can be put into blocks via scripts?

According to this answer, miners can include extra data in blocks. Is there an upper bound to how much a miner can add? How much?
35
votes
3answers
49k views

How can I start mining Bitcoin?

Ok. I don't care if I make only a small amount of bitcoins mining. I want to mine. How do I setup my machine (amd x64 4.6Ghz 6GB/RAM with GeForce Nvidia 7300, LinuxMint 10) to start mining? Is it ...
4
votes
1answer
521 views

When will the official client support partial blockchain downloads?

Are there concrete plans for the official client to be able to download just a portion of the blockchain? By concrete I mean what's the issue tracking this on github, is there a planned version for ...
9
votes
2answers
1k views

Does encoding Namecoin/messages into the blockchain bloat it?

I read today twice concerns about inflating the blockchain: NameCoin Bitcoin Message Service So, does using these services "over inflate" the blockchain? The way I see it, if another protocl rides ...
35
votes
9answers
12k views

Is there a Bitcoin bank, which gives interest on my deposit?

Is there any Bitcoin bank I can place my Bitcoins in that will give me a decent interest rate. It should be at least 1% for it to be worth it.
4
votes
1answer
420 views

How to get difficulty from Fairbrix/Tenebrix?

How can I get the difficulty of Fairbrix or Tenebrix directly from the client? Without using an external site. I use "getinfo" with Bitcoin but with Fairbrix/Tenebrix, "getinfo" doesn't return ...
3
votes
1answer
674 views

Where can I find a Windows binary of MultiCoin?

MultiCoin is AFAIK the only GUI client that supports NameCoin. Is there a trusted Windows binary to be found?
35
votes
6answers
131k views

What are stale shares and what can I do to avoid them?

When I mine at a pool, only a part of my shares are accepted. There is a small percentage which is marked as stale. As far as I know I only get paid for accepted shares, so what are these stale ...
9
votes
4answers
3k views

Are there any linux distros that have the bitcoin client pre-included?

Ideally would be able to make a bootable usb with a lightweight linux os which already included the bitcoin client.
3
votes
3answers
857 views

Bitcoin communication with non-standard ports

I'm writing a Bitcoin web app that is to be deployed on an external server over which I have no control. I probably won't have access to standard Bitcoin port (8333). Will this cause a problem when ...

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