You can't make people read. Or search.

Maybe the new member captcha should be that they have to type the phrase in the box: "I can only post in the newbie forum".

The original paper: https://bitcointalk.org/index.php?topic=3165.0

In the beginning, all pools were proportional - when a block was found, pools immediately paid out the block reward to miners based on their contribution since the start of block hunting. If a block was quickly found, then miners would get higher earnings per amount of work submitted. The strategy is to "hop" to a new pool as soon as they find a block and start a new round of block finding, hoping for an early block find, then abandoning that pool as soon as another pool starts a new round. By doing so, you are investing your mining work in pools only when there is an above-average reward potential.

It is bad because it reduces the income of full-time miners - they get less work submitted during the profitable times and are left mining alone on long blocks.

It is important to have case fans that do their job. Consider that the GPU fan sucks air from inside the case and blows it out the back slot of the card:

1. The hot air vented out the back should not be sucked back into the case - an empty card slot without a plate will allow hot air back into the case.
2. Power supply and case fans that blow out actually compete with the GPU fan. Consider a hypothetical super-strong case fan venting out - it will be pulling air into the case through any intake source available, including backwards through the GPU.

I found good success with 200mm 700RPM fans, they are quiet but move a lot of air. Set them up in the side of the case (or make a new case side out of posterboard with this 8" fan mounted) so they blow in, and they will enhance the GPU cooling by providing fresh air with the correct airflow direction. Ideally you'd have all case fans blowing in from the front and side, and the only outlet for air being through the GPU (and some CPU->Power supply airflow, but if your CPU is making much heat, you have a badly spec'd rig).

I actually have two of these fans I'm not using for rigs anymore that I could part with.

There are already csv files for you to download at http://api.bitcoincharts.com/v1/csv/

Added:

SierraChart can export data into CSV format for you, after opening your exchange, choose Edit-> Export Intraday data to txt file. It exports to CSV in this format:


Note that these volumes are 100x larger than actual.

Topic: Offering PayPal for Bitcoin? You're likely to be labeled a scammer - Read why.

Especially with an account that looks like it was bought for free coin giveaways.

New version of Sierrachartfeed and direct-download history files, now with old exchanges for your entertainment

Update 021:

• Corrected crash downloading trade data with negative volume amounts in history (btc24EUR and ruxumUSD),
• Fixed downloading of symbols with no recent trades for months (undocumented API issue),
• Error handling of blank or invalid exchange symbols,
• Faster history download on long periods of no trades.

Update 020:
-Tweak data request sizes.

Update 019:
-Fix error on initial request too large.

Update 018:
-All times in UTC instead of local time (allows easy data file interchange with other users and comparison with other ticker sources),
  REQUIRED: remove all existing C:\SierraChart\data\*.scid files before using this new bridge version.
-properly close IP sockets (not a fix for all 502 errors, apparently)
-faster update,
-remove about 1-5MB of redundant downloading at initialization,
-cosmetic tweaks: error stats and download times on console.

note: when using the single-letter option, there is no space between the option and the parameter


Download links:
(new version available)/sierrachartfeedUTC-0.6.021.exe (3.9MB) (windows 32 bit standalone exe)
MD5: fb686793172f142ecdb2150d701c9c99 *sierrachartfeedUTC-0.6.021.exe

http://we.lovebitco.in/schart/sierrachartfeedUTC-0.6.021.py (python 2.7 source - needs github files also)

SCID full history files:
from first recorded trade to Wed, 21 Aug 2013 23:59:59 GMT:
(extract to C:\SierraChart\data\ before starting SierraChartfeed)

MtGox only: http://we.lovebitco.in/schart/mtgoxUSD.scid.UTC.7z (22.6MB/227MB)

• mtgoxUSD

Other current exchanges: http://we.lovebitco.in/schart/otherALL.scid.UTC.7z (19.0MB/200MB)

• bit2cILS, bitboxUSD, bitcashCZK, bitcurexEUR, bitcurexPLN, bitkonanUSD, bitnzNZD, bitstampUSD, btcdeEUR, btceEUR, btceRUR, btceUSD, btchkexHKD, btcnCNY, cbxUSD, crytrEUR, crytrUSD, fbtcEUR, fbtcUSD, fybseSEK, fybsgSGD, icbitUSD, intrsngEUR, intrsngGBP, intrsngPLN, justLTC, justNOK, justXRP, kptnSEK, localbtcEUR, lybitCAD, lybitUSD, mrcdBRL, mtgoxAUD, mtgoxCAD, mtgoxCHF, mtgoxCNY, mtgoxDKK, mtgoxEUR, mtgoxGBP, mtgoxHKD, mtgoxJPY, mtgoxNZD, mtgoxPLN, mtgoxRUB, mtgoxSEK, mtgoxSGD, mtgoxTHB, rippleEUR, rippleUSD, rippleXRP, rmbtbCNY, rockEUR, rockSLL, rockUSD, vcxEUR, vcxUSD, virtexCAD, virwoxSLL, weexAUD, weexCAD, weexUSD

Past/retired exchanges (Tradehill, etc): http://we.lovebitco.in/schart/historic.scid.UTC.7z  (3.4MB/32.9MB)

• aqoinEUR, b2cUSD, b7BGN, b7EUR, b7PLN, b7SAR, b7USD, bbmBRL, bcEUR, bcGBP, bcLREUR, bcLRUSD, bcmBMAUD, bcmBMGAU, bcmBMUSD, bcmLRUSD, bcmMBUSD, bcmPPUSD, bcmPXGAU, bcPGAU, bitchangePLN, bitfloorUSD, bitmarketAUD, bitmarketEUR, bitmarketGBP, bitmarketPLN, bitmarketRUB, bitmarketUSD, bitmeUSD, bitomatPLN, britcoinGBP, btc24EUR, btc24USD, btcexEUR, btcexJPY, btcexRUB, btcexUSD, btcexWMR, btcexWMZ, btcexYAD, btctreeUSD, cryptoxAUD, cryptoxUSD, exchbUSD, freshPLN, globalEUR, globalGBP, globalPLN, globalUSD, imcexEUR, imcexUSD, intrsngUSD, ruxumAUD, ruxumCHF, ruxumEUR, ruxumGBP, ruxumHKD, ruxumHUF, ruxumJPY, ruxumPLN, ruxumRUB, ruxumSEK, ruxumSGD, ruxumTHB, ruxumUAH, ruxumUSD, ruxumZAR, snwcnXRP, thAUD, thCLP, thEUR, thINR, thLRUSD, thUSD, wbxAUD

Why are the bitcoins used to buy the site worth so much?
Completely easy to replicate.

Think about this too much, and you can ask the same of most companies. AOL was worth $350 *Billion* dollars to Time Warner? Huffington Post was worth $315 Million to AOL? Just as much nonsense.

The smart bet is the one you don't make after a series of dumb bets got you up 900BTC.

That appears correct, the code in net.cpp GetMyExternalIP seems only to be called upon startup. External IPs changing on an always-on connection should only affect a few users, perhaps a command line option to enable periodic polling of external IP would be the solution, so not everyone is hammering external IP service providers unnecessarily by default.

You can certainly store a wallet file on that size of USB, however a bootable OS with a lite client would be a stretch. One could start with tiny core linux http://distro.ibiblio.org/tinycorelinux/downloads.html - then install extra software on it.

If you want to sell them, just sell them as 256MB drives, you don't need to make promises about what people can do with them.

The mining power of an isolated area would be much less than the rest of Bitcoin, they would only need to know to not trust payments in any locally mined blocks if they happen during isolation.

I just did a hard drive cleanup, and realized I had tons of copies of the blockchain from different stuff - multiple datadirs, virtual machines, pynode, torrent & torrent bootstrap candidates, zipped up copies, multiple computers, etc.

You should have a backup of an updated blockchain if you use a full client though (just copy the whole Bitcoin datadir with subdirectories except for the wallet) - it will save you a lot of re-downloading or importing in case your Bitcoin craps the bed.

How much blockchain bloat are you storing?
 

Sell it on eBay or craigslist for $40, buy 0.5 BTC.

I vote for a rule that takes off points for every necro bump. The older, the more points disappear.
Over 30 day bump, -1. Over 120 day bump = -2, over 365 day bump = -3, etc


Then we take off a point for every post above a threshold considered excessive spamming:
48 posts in previous 24 hours
24 posts in previous 6 hours
12 posts in previous 1 hour


Applied retroactively.

6 posts in two minutes = banhammer. The obvious post whores who don't read anything.

First, what the heck is a "FUD keylogger". You are misusing words you heard somewhere. http://en.wikipedia.org/wiki/Fear,_uncertainty_and_doubt

Secondly, a 51% attack has nothing to do with acquiring Bitcoins. It has to do with gaining a majority of the hashrate that secures the blockchain (mining), which would allow you to erase blocks or transactions in the blocks, containing payments that others may already have trusted. One doesn't even need 51% if the goal is just to occasionally cause orphan blocks.

The "biggest threat" is not 51% mining attacks; the Bitcoin blockchain is secured by an extreme amount of processing power, and there is small profit opportunity available for executing one. The biggest threat is entrenched bankers and their bought-and-paid-for governments continuing to discourage and harass legitimate businesses by freezing and seizing the fiat currency accounts necessary to exchange money in a non-homogenous currency environment and criminalizing the use of non-sanctioned non-centrally controlled money in various ways.

Help -> "Debug Window" -> "Console" tab. Type listunspent. You will see every unspent payment individually.

You may wonder where old binaries went....:


0.3.24 was the last of the 0.3.x series

If you type FPGA into the search box while reading this thread, it will give you the answer, which is no. A bitcoin miner is computationally nothing like an address generator.