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1500 questions
37
votes
8 answers
How to save bitcoins as paper?
I would like to save some of my bitcoins on a piece of paper with QR code printed on it. What would be the easiest way to do it without using Mt Gox. or similar. Just bitcoins (I'm not afraid of some programming if it's needed).
Reed
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36
votes
6 answers
How do I reduce the size of the block chain data on my machine?
The block chain file is getting rather large, ~500MB. Is there a way to trim it or clean up, or maybe configure it to be limited in the future? I am using the stock Bitcoin client on Ubuntu.
browep
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36
votes
1 answer
What are the bandwidth requirements of a mining rig?
How much bandwidth consumption can I expect per 900 Mhash/s rig (for instance) for both pooled and solo scenarios? I'm looking for a ballpark number for the on going requirements, after the initial blockchain download.
Mocky
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36
votes
18 answers
I paid in bitcoin, now I'm owed a refund. Can I demand it in bitcoin too?
This is, I suppose, a legal question so I should point out that I'm most interested in US and European law.
I made a payment to a company for a product more than a year ago in bitcoin. The amount that I paid then was equivalent to $75. Now the…
CharlieB
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36
votes
5 answers
How are transactions broadcast to the rest of the network?
If a person sends a transaction to another person, and Bitcoin is a peer-to-peer application, how will the transaction get to the rest of the Bitcoin community? How does everyone have the same blockchain?
Does every system know about every other…
Patrick W. McMahon
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36
votes
2 answers
What is TxIn's sequence?
I'm currently trying to generate the genesis block with my code and I've stumbled upon the TxIn sequence field that is not explained in the Protocol Specification wiki page, nor does it seem to appear in the block explorer. What is the way the value…
ThePiachu
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36
votes
7 answers
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 could be found to spend those "destroyed"…
billpg
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36
votes
3 answers
Is there any point to casual mining?
Is there any point to casual mining anymore? I recently discovered bitcoin and was wondering if there was any point to running mining software on my laptop while I work on essays or other non-computationally intensive task. I tried looking around,…
Canageek
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36
votes
6 answers
How to get an address's balance with the bitcoin client?
I want to see the balance of some address using bitcoind.
I set txindex=1 and did a -reindex to get all transactions indexed.
But still, there doesn't seem to be a way to get balances of an address. getreceivedbyaddress doesn't work with addresses…
Steven Roose
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35
votes
6 answers
How does one attain 1,000+ connections like blockchain.info?
At this moment, blockchain.info has over 1,900 nodes connected to their bitcoin client.
I have been running an m1.small ubuntu 12.04 server and bitcoind for ~4 days straight now with no reboots. My bitcoind client still only shows ~60 connections…
user3145
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35
votes
5 answers
How can one remain relatively anonymous while using Bitcoin?
Bitcoin transactions are pseudo-anonymous. What can an individual that uses Bitcoin do in order to remain as anonymous as possible?
ripper234
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35
votes
4 answers
How to understand Bitcoin source code
I am not a C++ pro. I read C++ as a part of my undergrad school course. I am very passionate about the future currency i.e. Bitcoin.
But I don't understand the source code structure. How to read the source code? As I already told I am have very…
abhimanyuaryan
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35
votes
1 answer
Why are Bitcoin addresses hashes of public keys?
Currently, Bitcoin addresses and their checksums are constructed from the public key by a using repeated hashing with SHA256 and RIPEMD160. Now I understand the reasoning behind using hashing for constructing the checksum, but why wasn't just the…
Noah
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35
votes
2 answers
Do mining pools centralize the Bitcoin network and make it less secure?
A mining pool with a significant percentage of the hash rate could allow double spend attacks by the pool manager. There are a number of pools that approach this level. However, most people say that a compromised pool would be easily detected, and…
Joshua Kolden
- 4,036
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35
votes
6 answers
What would a country adopting Bitcoins as official currency have to reinvent?
Let's say that a country decided to ditch their currency and go for Bitcoins. What would this country have to reinvent. The reason why I ask, is because I believe that if a tiny country was to adopt Bitcoins as their official currency, then this…
David
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