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0answers
7 views

Can I pay for private git repos with bitcoins [on hold]

Neither github nor bitbucket takes bitcoins yet. Is there anywhere I can get some private git repos for bitcoins?
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1answer
42 views

Specifics on “Race Double Spending Attacks”?

Hi guys I am doing some research on double spending in the bitcoin network several ideas have been confusing me: In prevention of Race attacks, merchants are advised to "connect to a large random ...
-1
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1answer
43 views

What's up with all the QR codes? [duplicate]

Just bought $5 of Bitcoins from CoinBase. How do I spend them? I gather it has something to do with QR codes. . . .
0
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2answers
117 views

Spend BTCs from a paper wallet

So, I want to create a cold storage bitcoin address to store incoming BTCs from donations and payments (I'm a freelance developer so I'm getting used being payed with BTC). Since this address has to ...
0
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0answers
32 views

How to check transaction outputs for redeeming from bitcoin-qt console

Is there a way to check, that tx output is spent already? For example blockexplorer.com and blockchain.info show such information. Unspent output example Spent output example
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2answers
176 views

Spending bitcoins - what happens to the change left in your address?

How do I manage my wallet and addresses when spending bitcoins? For example, let's say I have address abcdefgh, and I have 10 Euros there. I read that when I buy something worth say 4 euros in ...
5
votes
2answers
6k views

Best way to cash out Bitcoins?

What's the fastest and cheapest way to cash out Bitcoins to my bank account, without being hit with a ton of fee's? I looked at Mt.Gox but they want so much personal information and have a waiting ...
6
votes
2answers
168 views

Freelancer: billing my customers in bitcoin

I do freelance work and I was considering offering my customers the option of paying me in Bitcoin. Given that bills are usually paid in 2 - 4 weeks after sending them, and the exchange is still quite ...
2
votes
1answer
30 views

Will Flattr support Bitcoin?

It would be great if it would be possible to spend Bitcoins via Flattr. Does anybody know if there is something planed?
4
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2answers
687 views

Can you pay with Litecoin anywhere you can pay with Bitcoin?

Can you pay with Litecoin at any place that accepts Bitcoin? If no where can you spend Litecoins?
4
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2answers
933 views

Where can the private key from a bitaddress.org paper wallet be redeemed?

I recently got started by creating a single wallet using bitaddress.org. This contains the public bitcoin address and the private key in the wallet import format. I now have some coins in there, but ...
2
votes
3answers
2k views

How do I withdraw bitcoins from my MtGox account?

I've purchased a few bitcoins on MtGox. Now I'd like to spend them. How can I actually spend the coins I purchased on MtGox? I've looked around mtgox.com for any indication of private keys, bitcoins ...
3
votes
2answers
196 views

Effect of price increase on usage of Bitcoin

I was just about to pay for something with Bitcoins today and I hesitated for an instant thinking that the price might be $10 more next week. Is it possible that Bitcoin holders will be less likely ...
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5answers
1k views

Is anyone actually spending bitcoins?

I see lots of people talking about buying bitcoins, mining bitcoins, but no one spending. Maybe I am getting it wrong, but unless I can get paid with bitcoins, this seems to be pointless in my ...
5
votes
3answers
558 views

How are fractions of bitcoin implemented and spent?

If the ability to spend bitcoins and therefore bitcoins depend on/correspond to private keys, how can fractions of coins exist? Can the key be split up? How are fractional transactions signed versus ...
6
votes
2answers
356 views

How can I control which coins to spend in a transaction?

When creating a bitcoin transaction, you have to choose which coins to use in them. The standard client does this in a way to avoid unconfirmed inputs and minimize the number of inputs and amount of ...
3
votes
1answer
78 views

Are there any mining pools that allow a specified amount of bitcoins to be sent to a chosen address?

This would be like using a pool as a wallet service, as you could send a subset of your balance to a retailer to purchase something and avoid running the Bitcoin client app. Most pools only pay out ...
21
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1answer
1k views

What is the coin selection algorithm?

When creating a transaction in the standard client, what is the algorithm used to determine which unspent outputs will be used as inputs? Has this changed since the first version? What different ...