Bitcoin Stack Exchange
Bitcoin Stack Exchange

Questions tagged [spending]

48 questions
10
votes
3 answers

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?
Celeritas
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What are the trade-offs between the different algorithms for deciding which UTXOs to spend?

When someone would like to make a transaction, their software has to choose which of their UTXOs to spend. Here are a few different ways that one might prioritize which UTXOs get spent. Oldest UTXOs first Newest UTXOs first UTXOs with the smallest…
morsecoder
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3 answers

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 integer transactions? I am not asking what the…
Kinnard Hockenhull
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3 answers

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 volatile, how could I do this? Can I do anything…
Chinthamani
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6
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6 answers

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 perspective. I know how to get paid in bitcoins, but…
Paulo Arruda
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5
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3 answers

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 don't really understand how to use them. How can…
user4432
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1 answer

Unspent/Spent Flag in Blockchain

I just started getting interested in the blockchain a week ago, however there is something I can not just figure out. Regarding the flag "Spent/Unspent" in transactions. I get that we flag "spent" the output of a transaction if this same output is…
Younes S
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1 answer

Increase transaction fee with Bitcoin Core client fails because of no change output. Why?

Context I created a transaction (using the full balance of an output) with the Bitcoin Core Wallet (running as full node). The transaction got into the mempool of major nodes, as expected. I set the fee to what the client recommended for a slow…
hitchhiker
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3 answers

How is it possible to say that a bitcoin was fully spent?

Is a simple question, but I want to understand this at the low level. Since the UTXO is a database with the yet-to-be-spent coins, how can I say that a given coin was already full spent? What would be a "half"-spent coin (if this is even possible)?
Henrique Barcelos
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1 answer

Will people not spending their Bitcoin cause Bitcoin to fail?

Everyone I know that owns Bitcoin (including myself) seems to plan to sit on it until it becomes widely accepted/used and the price sky rockets to a ridiculously high value (100000 dollars each). It's great that the number of merchants accepting…
Joe
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4
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2 answers

How is the previous transaction hash calculated?

Can anyone provide a clear example on how to calculate a previous transaction hash? Say I want to create a new transaction, I get that the hash is calculated by doubling sha256 a message m, but I'm having a hard time understanding the structure of…
Mohamed Amine
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3 answers

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 addresses, hashes etc but didn't see anything. I'm…
SundayMonday
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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 to spend their Bitcoins on actual goods or services…
Emre Kenci
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3
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1 answer

How to sweep a bulk wallet?

If I have a bulk wallet with, say 100000 key pairs (address/private key) and I have received payments on any, say 1000 of them, how can I sweep all the coins to a new address? It would be even better if I can do it from the command line, for example…
Hristo Hristov
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3 answers

Are hacked bitcoins spendable?

700,000 BTC were stolen from MTGox. So are they actually spendable by the hacker or are they now just lost to the world? I can understand wallets being encrypted, but why aren't individual BTC encrypted with the owners private key so that a stolen…
michaelbinary
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