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4
votes
2answers
114 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
2answers
417 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 ...
2
votes
2answers
172 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 ...
4
votes
5answers
667 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 ...
4
votes
3answers
200 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 ...
5
votes
2answers
243 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 ...
2
votes
1answer
68 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 ...
18
votes
1answer
582 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 ...