0.0001/kB BTC fee * $1000/BTC = $0.10. You can avoid fees that are multipliers of the minimum by not filling your wallet with only trivial dust payments that are more expensive to spend than to discard.

High end data recovery companies are very good at doing what they do, here's a presentation where some advanced techniques such as replacing the disk stack in to a new drive and replacing boards while swapping proms are described. If you are in to the thousands of dollars lost, it is something to consider.

(sorry, it's part one of six)
http://www.youtube.com/watch?v=Kx-D1nJcv0k

Uninstall?

If you don't pay the minimum fee when required, it's a non-standard transaction that won't be relayed to other bitcoin nodes or included in a block.

A paper wallet is fine for creating one address and sending bitcoins there for long-term storage. However, copying a single address from a working wallet is not effective; if you are using the wallet, then your balance may quickly move to other addresses; Bitcoin creates 100 other addresses for future use by default, due to change.

Armory allows you to create a deterministic wallet. This is a wallet where all the other addresses that will ever exist are based on an initial secret seed, so it is sufficient to create a backup of only this seed.

This is bad advice that is a good way to lose Bitcoins. If you are advocating this for:

• backing up your wallet: The balance of your bitcoins may not be in the address you see, and the entire contents of one address may be emptied by just one small transfer.
• paper wallet: The whole point is to generate a can't-be-hacked wallet. You've made one on your computer in the way everyone expects you have, leaving data behind on that machine or a log of your activity if you've been hacked and have a key and screen recording trojan horse.

If you are attempting to make a backup of a wallet, there is a backup wallet option in the menu of Bitcoin-Qt.

About 10 minutes on a normal wallet and PC. Longer for many addresses in the wallet and on a slow CPU. You don't need to rescan as long as there is no chance that wallet received payments while it was "down".

And like that, everything is going through http://images.weserv.nl/
What I see:
101.165.121.91.in-addr.arpa domain name pointer rbx.weserv.nl.

img code example:
https://images.weserv.nl/?url=i.qkme.me/3pvloj.jpg&fnr


Lots of meme pics from different domains for the testing: https://bitcointalk.org/index.php?topic=90138.0

Yes. Line 365. https://github.com/bitcoin/bitcoin/blob/0.8.5/src/main.cpp

I do know that it is impossible to send an amount below 0.00005460 bitcoins on the Bitcoin network.

edit: 5460 blocked depending on the transaction construction, 5430 blocked in all cases.

You can already create your own bet here: http://betsofbitco.in/

Just submit one "will the 2014 starcraft champion be a Korean?" etc.

If there actually is a market for lots of such specific "video game" bets, users on that site would probably grow tired of them, so you can look at how it works to get some ideas for a new website.

So much sock puppet. OP and one positive response registered within two minutes, others registered today about the same time...

0.00005 is useless and unspendable.

Just closing bitcoin, copying the wallet.dat (after moving but not deleting any previous important wallet), and restarting with the bitcoind -rescan option is sufficient to move a wallet to another machine. If you don't already have a blockchain downloaded, it will be a long time before that bitcoin is ready though; copying an existing complete 12GB datadir can save a day of re-downloading and processing the blockchain.

I can't think of many scenarios outside of restoring a backup where you'd put an existing wallet.dat up on a server.

This isn't worth a new thread, but I came up with a genius forum mod:

I brought this up to theymos over two years ago. I even PM'd him his IP address and a log of every time he viewed his messages. Letting users embed images has this risk.

The solution, used by forums such as vBulletin, is to have users upload their pictures to the forum, sometimes with a login required to view them. This would be nice for me, because daily, dozens of robots hit every file, link, or image I have posted here (along with skript kiddies).

While protecting users, allowing image upload puts the forum software at risk, for the same reason that avatar uploading is disabled.

A (sanitized) illustration: https://bitcointalk.org/index.php?topic=309601.msg3578415#msg3578415

What's even funnier is that I can just put a php in image tags, now you are immediately logged to a text file:
()

Another thread with tracking fun: https://bitcointalk.org/index.php?topic=139030.msg1490461#msg1490461

I would expect a lot of what you get would be confusing, you would get one-half of the conversation. Read this message alone, what the heck am I talking about?

Sometimes if I'm tired of reading FAQ-level noob questions, I go back and read this guy's posts from a year or two ago - sometimes it's stuff I didn't know I knew!

Thought I'd give this thread a mega-bump just because I'd still like my mockup to magically come true (some fee guesstimation work is in progress for 0.9). I recently tried to export particular private keys into a new wallet, even calculated in Excel using UTXO, and still ended up with an unspent dust that wasn't grabbed out of my wallet thanks to the opaque fee calculations in Bitcoin-Qt.

Comments invited, from those who intimately know what Bitcoin already does.


This is generally what I was indicating in my mockup where "network statistics" are listed. With current statistics it might look like:

Since the local client won't know all transactions miners could be considering, and it's hard to educate about block variance, being non-specific but informative about the estimated time is hard. A "percentile" might not be accurate, because a lot of what's pending is a big backlog of zero-fee junk that will take many blocks of 27k priority-based space to clear.

Fee per kB is actually more important than total fee, the mockup should indicate "Per kB" optional fee, just like Bitcoin-Qt does now, and then calculate total fee amount live.

Many laptops that ship with Windows 8 are incompatible with Windows 7, the manufacturer doesn't have drivers available. This is the worst, because even if you want to install Windows 7, you can't. Check the manufacturer's support page for that laptop model, and be sure that it has more than only Windows 8 drivers for download.

Windows 8 is not bad for running Bitcoin, it is just bad.

If you want to run full Bitcoin-Qt, it will be painfully slow on a laptop; it works best on a fast PC with a SSD. If you use a light client like Electrum, the speed of your computer doesn't matter so much. If you use a web wallet (not advised), you can use your phone's web browser.

If the wallet.dat was from a significantly older version, it will not reflect the correct balance without intervention. Newer software also puts the block number that was last seen in the wallet, so that information can be used to resume looking for new transactions.

The solution if you already have your wallet.dat in the right place and the client up to date, is to start Bitcoin with the -rescan command-line option:

bitcoin-qt -rescan

Then wait, and wait. About 20 minutes later your wallet will open and will reflect the correct balance for any addresses in the wallet.

You have a corrupt wallet, but you are asking the wrong question, so you are going to get wrong answers.

http://mywiki.wooledge.org/XyProblem

First, how did you get a "corrupt wallet"? What kind of wallet. We'll assume it's Bitcoin-Qt for some instructions.

Starting Bitcoin-Qt with the option -salvagewallet will scan the wallet for addresses/keys and attempt to recover them.

If that doesn't bring back any addresses or fails, the next step is to use pywallet to scan the whole file for you to recover anything that resembles a public key. Read, and be a technical person already:

https://bitcointalk.org/index.php?topic=34028.0

I have a modified version of pywallet here that will keep scanning even when there are serious errors:
http://we.lovebitco.in/pywallet-keyskip2.py

A typical command to do this:
pywallet-keyskip2.py --recover --recov_device wallet.dat --recov_size 1Mio --recov_outputdir .
 

Applecoin? WTF. Don't do whatever you are getting scammed into doing.

GPU mining for Bitcoin is long gone, you won't be able to mine enough bitcoin to even make enough to withdraw from a pool.

Here is a litecoin hardware table, the settings and software for 5770s are there along with performance:
https://litecoin.info/Mining_hardware_comparison