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10
votes
2answers
13k views

How to choose the most profitable pool?

Say I have a moderate amount of hashing power and I want to maximize my profit by using the pool that would give the best rewards for mining with them, what should I look at when choosing a pool?
24
votes
2answers
6k views

What is the block maturation time?

I was reading the wiki article about the blockchain and I didn't understand the part in bold: When a block becomes an orphan block, all of its valid transactions are re-added to the pool of ...
5
votes
3answers
3k views

Does my client accept inbound connections?

How can I verify that the Bitcoin client is well connected to the network and is able to receive incoming connections?
4
votes
1answer
218 views

Contracts: Will this be possible?

I would like to know if this will be possible with Bitcoin: Create a key with the following features: Only be able to spend btc if a % of pre-definied keys allow it The own of the key need for ...
8
votes
1answer
1k views

Where can I see the average transaction fee payed in the last 100 blocks?

Is there a site that shows what's the average transaction fee payed in the last X blocks? Or just raw data about this? I checked BlockExplorer and Sytes and they don't seem to show this information.
8
votes
4answers
566 views

Would any of the current botnets be able to launch and sustain a 51% attack?

The "owners" of botnets probably runs them as businesses, meaning that they will always seek profit-optimization. Do you believe that it is a matter of time before they will seek to launch and sustain ...
7
votes
6answers
6k views

A list of trusted Bitcoin websites?

Is there some trusted website that maintains a list of Bitcoin-related websites and their reputation? For example, if I wanted to check if betsofbitco.in is a legitimate websites (it pays rewards ...
11
votes
3answers
1k views

Why does the mainline client limit the number of outbound connections to 8?

The mainline Bitcoin client limits number of outbound connections to 8 however allows up to 125 total connections. To achieve greater than 8 connections (due to outbound limitation) requires either ...
9
votes
1answer
798 views

How do I implement an escrow service using Bitcoin contracts?

I can see that Bitocin can provide escrow contracts. https://en.bitcoin.it/wiki/Contracts#Example_2:_Escrow_and_dispute_mediation Can someone provide a worked example or even better a pointer to a ...
10
votes
3answers
2k views

Is there a bitcoin exchange accepting SEPA transfers? [closed]

Since mt.gox had to close its european office, is there any other exchange accepting SEPA transfers? Sending a wire to the HK office costs much more than a SEPA transfer to me, and I'd like to avoid ...
12
votes
4answers
1k views

What are the most respectable Bitcoin news websites?

Which blogs or websites are the most respected in the community to bring everyone up-to-date with the Bitcoin-related news? I'm not talking about the forums, as the sheer volume of messages are ...
5
votes
2answers
5k views

What does the `gen` option in bitcoin.conf do?

The gen option isnt copiously described in the sample bitcoin.conf file ... does that mean that the daemon started up will attempt to mine for coins?
6
votes
3answers
374 views

What are the qualities of a country that might make it more or less likely to freely allow Bitcoins or crypto-currencies?

As some examples which seem logical to me, but should only be taken as examples: A government that is susceptible to commercial lobbying is probably more likely to be pressured by banks to disallow ...
11
votes
3answers
689 views

Is there a list of countries that are not likely to persecute bitcoin businesses?

It seems that at some point countries will start cracking down on Bitcoins. And Bitcoin is designed to handle that. However, are there some countries that are openly friendly to bitcoin businesses ...
14
votes
2answers
2k views

Why so many bitcoin exchanges have their bank accounts closed and have problems establishing bank accounts?

I find it really strange that it happens that so many Bitcoin exchanges have their bank accounts closed. Outside of the Bitcoin world, I find it very unusual to have a bank account closed, for a ...
9
votes
1answer
216 views

One dataset for many wallets… how?

It takes a while to download and process the transaction log. Doing that for dozens of wallets would be a big waste. I want to run just one client full time as a log processor. Then for each wallet, ...
11
votes
2answers
1k views

Mining pool performance optimization

What are the main components one should focus on when trying to maximize a mining pool's performance? Assuming the code is pretty optimal (there aren't any inefficiencies), what should a pool owner ...
10
votes
4answers
451 views

How safe it is that a single San Francisco company controls the canonical location of Bitcoin code?

The single most-trusted canonical source of Bitcoin client is https://github.com/bitcoin/bitcoin This URL is controlled by a single US company GitHub Inc., headquartered in San Francisco, United ...
11
votes
4answers
410 views

Is there already an existing closed cash flow loop for the currency BTC?

Loop means: merchant will get delivered goods from producer in BTC customer will buy goods from merchant in BTC factory worker will get salary as BTC (at least in parts) At this loop there is no ...
5
votes
1answer
2k views

How exactly is Rucoin different than Bitcoin?

Rucoin is a "Russian Bitcoin clone" (see announcement thread). Besides the fact the website is in Russian, what other characteristics does this coin have? Is it just a 1-to-1 Bitcoin clone? Is ...
7
votes
5answers
373 views

What is/Is there the relation between the value of a bitcoin and the prices of video cards?

A significant number of Video Cards (significant investment) are required to reduce the possibility of 51% attacks. What would happen to the price of a Bitcoin if the prices of Video Cards suddenly ...
-3
votes
1answer
284 views

What is the threat from multitudes of casual guessers? [closed]

It seems to me that everyone is thinking about the threat from hackers, especially, say large, well-organized groups of hackers. But what about another threat: casual guessers. Suppose someone ...
7
votes
3answers
1k views

If I wanted to print my bitcoins?

Suppose I wanted to print my bitcoins to paper for safekeeping. It would be impossible for a hacker to get at my computer. To do so I need to know where to find the private keys. Is there only one ...
0
votes
4answers
375 views

Is there a mechanism to handle stale bitcoins? [duplicate]

Possible Duplicate: Why doesn't Bitcoin return lost coins back into the block reward? What could be the consequences of many bitcoins being lost out of circulation if people lose their wallets?...
10
votes
3answers
484 views

Changing Bitcoin's deflationary nature

One of the most common criticisms made against Bitcoin is related to its deflationary nature. Regardless of the advantages and disadvantages of an inflationary system, would it possible to change the ...
8
votes
3answers
9k views

Why does it take 15 minutes for my Bitcoin client to start?

I use Ubuntu 11.10 and have recently installed the standard Bitcoin client 0.40. But the GUI only appear around 15 minutes after started. My machine is an AMD64 Athlon 4600x2 with 6GB RAM. Is this ...
6
votes
1answer
340 views

Is there a list of Bitcoin malware

Does anyone keep a track of various Bitcoin-related malware, such as the recent DevilRobber Trojan?
10
votes
8answers
2k views

If the economy was based on bitcoin, how would someone go about getting a loan?

In today's society, people often take out loans from banks. In an economy that was run on bitcoins, how would someone go about getting a loan? I do not understand how this would work with Bitcoin's ...
16
votes
5answers
10k views

What Bitcoin-esque alternatives are there? [closed]

I'm seeing lots of bitcoin-esque alternatives mentioned here. What alternatives exist and how do they differ from Bitcoins?
18
votes
2answers
3k views

Why was the MIT license chosen for Bitcoin?

Given that an open, transparent, distributed p2p network is a central element of Bitcoin project it seems unusual that it is licensed under the MIT license which allows proprietary closed source ...
8
votes
2answers
836 views

Trying to understand the bitcoin chart

I'm trying to understant this bitcoin chart, but there's no indication of what's the Y axis. The "200K" means the value in dollars? Or in bitcoins? Or what? I'm trying to check out the value of a ...
15
votes
1answer
1k views

How can a non-miner store data in the block?

If I am not a miner and would like to put arbitrary data in the block chain, is there currently any method or protocol to get a miner to add it for me?
4
votes
2answers
10k views

What hashing speed does my hardware have?

I'm checking this page to know what hashing speed my hardware has. But there's no explanation about the acronyms. For my Core 2 Quad Q9650, what's the expected hashing speed?
7
votes
2answers
475 views

How should one try verifying to whom a given Bitcoin address belongs?

Lets say, I'd have a website that shows a large number of Bitcoin public addresses, and wanted to give option for anyone that owns a given address to verify it automatically. Assuming that one ...
3
votes
1answer
188 views

Can I get all the information I need to create a payment transaction from BlockExplorer?

Let's say I have a bitcoin address that I want to make a payment from. I understand that to create a payment from that address I need to get the unspent outs. Can I get that information from ...
5
votes
2answers
607 views

How to perform a double spend attack in websites that accept transactions with 0 confirmations?

To perform a Finney attack or a 51% attack I need to have lots of computational power, but in this case (a website that accepts transactions with 0 confirmations) it seems to me that I only need to ...
5
votes
2answers
1k views

Bitcoin client two-way communication

When client A opens a connection to client B, it opens its TCP connection to second client's port 8333. Is this connection solely used for A's queries and B's answers to A's query, or can B also query ...
45
votes
4answers
16k views

Why was the target block time chosen to be 10 minutes?

According to the wiki, 10 minutes was chosen as a 'tradeoff'. Why ten minutes specifically? It is a tradeoff chosen by Satoshi between propagation time of new blocks in large networks and the ...
7
votes
4answers
235 views

Do no-fee transaction represent a greater risk if the product is delivered instantly?

Let's say I want to accept payments instantly on a site for digital downloads. So I publish an address and wait for the unconfirmed transaction, I see the transaction and release the digital download....
19
votes
1answer
3k views

What are the differences between Bitcoin and Litecoin?

What are the differences between the Bitcoin and Litecoin algorithms and protocol?
5
votes
1answer
431 views

Bitcoin initial communication diagram

I'm trying to understand how exactly does the Bitcoin client communicate initially with another client, as I'm making my own client and learning new things about TCP protocol. As I understand, the ...
33
votes
7answers
14k views

How to generate a valid bitcoin address for destroying bitcoins?

(Following up to this question.) In order to put a bitcoin beyond use, the answer was to select a made up address. As this isn't a formal destruction of bitcoins, there's a risk that the private keys ...
9
votes
2answers
5k views

Does the Bitcoin client generate bitcoins automatically?

I mean, you just need to install the software, and with the time, you will get lots of bitcoins?
6
votes
5answers
4k views

What are some good online Bitcoin wallets based on client-side security? [closed]

I just found Bitventory, which seems to be an online wallet service that requires a minimal amount of trust (it's the major design goal, at least). Are there other services with similar goals or ...
10
votes
4answers
13k views

Can I view price graphs for alternative currencies, longer than 12 hours?

AFAIK, btc-e.com is the only place to show LTC/BTC price graph. Is there a way to view these graphs for longer than the ~ 12 hours that are shown by default?
5
votes
3answers
4k views

Where can I download the Litecoin binary for OSX?

Where can I find a compiled litecoin minerd binary for Mac OS X? Perhaps a multi-coin implementation?
11
votes
3answers
6k views

How can I generate a large number of Bitcoin addresses?

I would like to generate a large number of public Bitcoin addresses (several hundred thousand) quickly and efficiently into a simple text file. What would be the easiest way to get this done? I'm just ...
-2
votes
1answer
313 views

How to build a wallet in my computer? [duplicate]

Possible Duplicate: What software and skills do I need? I have seen on the wiki, there are too many steps (hard steps for a non-geek person) to build a wallet. Is there a easy way for a new non-...
8
votes
1answer
3k views

How does one use Bitcoin OTC?

I've heard of Bitcoin OTC and P2P exchanges, but never used one. How does one start? What does the ranking/rating system mean? How are exchanges done / reported? Why can't I see any user rating when ...
6
votes
1answer
455 views

What is the maximum number of signature check operations a transaction script can request?

As transaction size, the number of signature checks per transaction can affect client performance and the inclusion of many O_CHECKSIG opcodes could be used as a tool for denial-of-service attacks. I ...

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