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News: Latest Bitcoin Core release: 23.0 [Torrent]
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1  Bitcoin / Mining speculation / Free electricity in Texas on: November 09, 2015, 10:00:05 PM
So it appears that wind power generation is so successful in Texas that they are giving away free power during off-peak hours to promote using electricity during these times.

From 7-10am and 7-10pm power is free!  I don't have time to work the ROI math, but I have to think that this is a good opportunity for some home miners to fire up a bunch of gear 6 hours a day and try to make some coin.  Anyone here from Texas?  I'd love to hear about how people plan to take advantage of this offer.
2  Alternate cryptocurrencies / Altcoin Discussion / Bitcoin XT topics on: August 19, 2015, 04:07:36 PM
All Bitcoin XT topics should be removed from the Bitcoin subforum and moved here to altcoins.  XT is not bitcoin, it's an altcoin fork, and it should be treated as such.
3  Other / Meta / Font display bug on: May 20, 2015, 09:00:54 PM
I'm not sure what the character is, but it makes squiggly lines up my screen:

If I mouse over the topic link the squiggles shrink:

4  Economy / Goods / [WTS] Pong Research case for Android Galaxy S5 (Verizon) on: May 18, 2015, 07:39:45 PM
A few blemishes from daily use, but no damage.  Great case, feels perfect in hand, and good to know you're redirecting that EMF away from your brain.  For Verizon carrier only.

Asking BTC0.08 shipped to USA.  Escrow if you arrange and pay and feel so inclined for such a small amount.
Pong cases are embedded with a patented, micro thin, gold-plated antenna, that reduces exposure to potentially harmful cell phone radiation while maintaining the phone’s signal. The Pong antenna couples with the antenna in your phone and redirects radiation away from you. Results from tests in FCC-certified labs show exposure reduced by up to five times below the FCC Specific Absorption Rate (SAR). What's more, it was verified in an extensive, independent test by WIRED MAGAZINE.
5  Bitcoin / Bitcoin Technical Support / Bitcoin Core: internal fatal error, help! on: May 05, 2015, 02:54:45 AM
Core v0.10.1 crashed on me today, this time with an error window stating fatal internal error, see debug.log.  Here is the offending entry, after which Core terminated:
2015-05-05 01:16:34 receive version message: /Satoshi:0.8.1/: version 70001, blocks=308691, us=, peer=1372
2015-05-05 01:16:34 Added time data, samples 200, offset -3532 (-58 minutes)
2015-05-05 01:16:34 msghand thread interrupt
2015-05-05 01:16:34 Shutdown: In progress...
2015-05-05 01:16:34 StopRPCThreads: Warning: The attempted operation is not supported for the type of object referenced when cancelling acceptorStopNode()
2015-05-05 01:16:34 Corruption: block checksum mismatch
2015-05-05 01:16:34 *** System error while flushing: Database corrupted
GUI: registerShutdownBlockReason: GetProcAddress for ShutdownBlockReasonCreate failed
2015-05-05 01:18:26 Shutdown: In progress...
2015-05-05 01:18:26 StopNode()
2015-05-05 01:18:26 Shutdown: done
2015-05-05 01:19:37 Shutdown: done
2015-05-05 01:19:52 GUI: registerShutdownBlockReason: GetProcAddress for ShutdownBlockReasonCreate failed
2015-05-05 01:19:52

An hour later I tried restarting Core and got the exact same error while it was starting up and verifying blocks.  I am attempting to start it again.  What is this error, what caused it, and how do I fix it?

Edit: This time it restarted and verified all blocks just fine.  Still curious if there's any insight on the initial error(s).
6  Bitcoin / Bitcoin Discussion / Bigger blocks coming in release 0.11 on: May 04, 2015, 04:52:47 PM
Get ready, it's coming...

I’m going to submit a pull request to the 0.11 release of Bitcoin Core that will allow miners to create blocks bigger than one megabyte, starting a little less than a year from now.
7  Bitcoin / Hardware / SFARDS Now Offering SF3301 Sample Chips and Development Boards on: May 04, 2015, 04:20:58 PM


Thew new ASIC manufacturer SFARDS is now offering SF3301 sample chips for people interested in building their own miners using the dual-mining SHA-256 and Scrypt ASIC chips. The price is currently set at $200 USD per a pack of 2 SF3301 chips. Alternatively you can also purchase a sample Development board set that includes one dev board with a single SF3301 chip, two power supply boards, radiator and fan at a price of $400 USD. The prices are pretty high and do not include shipping, but do note that these are sample chips and development boards for people that want to test what the SFARDS SF3301 chips are capable of or make their own miners based on the chips. The actual volume prices of the chips and the miners based on them should be lower, or they will be pointless…

    Dev Main Board:
    – SF3301: 1 chip
    – Heatsink: heatsink & 12mmx12mm fan
    – FBB Voltage: +/- 0~1.0V
    – Communication Interface: RS232 / TTL

    Dev Power Supply Board:
    – Output Voltage Range: 0.5~1.6V
    – Voltage Step: 6.25mV
    – Max Current: 120A

I'm curious to see some test results, any thoughts what type of miner these chips will be used in?
8  Bitcoin / Mining / What's the best share... ever? on: April 08, 2015, 06:30:47 AM
Is there a way to know what "the best share ever" is?  When a block gets solved sometimes the hash provides a value that far exceeds the network difficulty.  I wonder what the best share ever is so far?  Pointless musing, but humor me.
9  Other / Off-topic / Supercomputer models one second of human brain activity on: March 21, 2015, 11:24:18 PM

Super interesting technology, and quite the comparison can be drawn between what our brains can do vs. what today's most powerful computers can do.

The computer has 705,024 processor cores and 1.4 million GB of RAM, but still took 40 minutes to crunch the data for just one second of brain activity.
10  Bitcoin / Bitcoin Discussion / Bitcoin the bad guy? on: March 19, 2015, 05:18:50 PM
So the new James Bond movie has a villian who mines bitcoin...

I think he needs to work on his wire management
11  Bitcoin / Bitcoin Technical Support / Bitcoin core 0.10.0 closes for no reason, no error on: March 11, 2015, 09:45:55 PM
Bitcoin core 0.10.0 closes on me without warning, for no reason, has happened the past two days.  I don't get an error message or anything on the computer.  I get an email from Bitnodes saying my node is down, so I look at my computer and sure enough core is no longer running, it just up and shut itself down.  What gives?
12  Bitcoin / Bitcoin Discussion / Bitnodes Project 2015 Q1 Report: Peer Index and Incentivized Full Nodes on: March 10, 2015, 05:16:13 PM
A good read for anyone running a full node.  I'm going to check my PIX value when I get home (don't know my IP address off the top of my head).  The incentive program looks cool, too.

During this quarter, I have also started the Bitnodes Incentive Program as a personal experiment to allow reachable nodes with Bitcoin address set to receive weekly incentive paid in bitcoins. The program has issued its first incentive just last week and will continue to do so until the end of this year or when we hit 10,000 reachable nodes, whichever comes first. While the program is the first of its kind, it is still far from an ideal solution but hopefully we can see some more serious discussions, e.g. #5783, from the community to look into ways to sustain more full nodes distributed across the globe. In the mean time, if you are already running a full node, you can enroll your node in the program by following the instructions in
13  Bitcoin / Bitcoin Discussion / Bitcoin will come to dominate global finance on: March 10, 2015, 05:13:27 PM
New article, hot off the press:

Interviewing the Winklevoss twins presents a unique problem: In retrospect, it can be extremely difficult to work out who said what.

In person, the 6-foot-5, 33-year-old, Olympic-rowers-turned-technology-entrepreneurs are just about distinguishable. But when speaking over a crackling, transatlantic Skype line, they are nearly impossible to tell apart.

The twins are gearing up for the launch of their latest project, a super-secure Bitcoin exchange called "Gemini," which they announced at the end of January. Created in 2008 by the anonymous Satoshi Nakamoto, Bitcoin is a decentralised digital currency that does away with central banks in favour of user-to-user transactions. Tyler and Cameron became involved in the sphere since first learning about it in 2012 (while partying in Ibiza, they say); they claim to own at least 1% of all Bitcoin in existence, and they have also invested heavily in the cryptocurrency ecosystem.

Bitcoin is like a "child taking its first steps," Tyler says, and the arrival of "mature financial tools" won't "happen overnight." But Gemini is intended to be one of the first of these.

Gemini will be a fully regulated exchange through which ordinary members of the public — and institutions — can feel confident enough to buy and sell the digital currency without fear. Right now the world of Bitcoin is like the Wild West — exchanges come and go, often disappearing with everyone's money inside them. Gemini will be the antidote to that, the twins hope. They are touting it as the "Nasdaq of Bitcoin."

They believe the digital currency — and institutions like Gemini — will one day dominate global finance.

It's an ambitious project, and it comes amid serious teething trouble for Bitcoin.
14  Economy / Speculation / Bitcoin price change vs. number of transactions on: March 02, 2015, 05:03:17 PM

source: http://www.c n b (why is cnbc a suspicious site?)

It's an interesting graph, not totally convinced it's corollary or causational.  Is this relationship a result of people selling off btc for fiat as soon as they're done with a transaction, or are there other factors?
15  Bitcoin / Bitcoin Technical Support / MinGW Runtime Assertion error while syncing Bitcoin core on: March 01, 2015, 07:13:15 AM

I get this error on occasion, usually when syncing.  Anyone know what causes it?  I always choose Retry, then I get another error window and the program crashes.  Typically I just restart core and it works just fine again.  Thanks.
16  Bitcoin / Bitcoin Technical Support / Help, Bitcoin Core 0.10.0 crashes on start-up, no error pop-up on: February 27, 2015, 05:18:49 PM
I've been running Bitcoin Core 0.10.0 stable for several days, but this morning I woke up to an error window telling me to see debug.log.  I've had errors before, and always just restart the program and no problem.  Well this time I restarted it and the loading screen comes up and it went through the block verification so fast as if there was no blockchain on my computer, then the program crashed.  I repeated the step and same thing, no error window either time.  I reinstalled 0.10.0, reset the options, pointed it to my data directory, but it still crashes at the loading window with no error message.  Here is a debug log from an attempted start of the program:

2015-02-27 14:55:26 Bitcoin version v0.10.0 (2015-02-13 09:55:11 +0100)
2015-02-27 14:55:26 Using OpenSSL version OpenSSL 1.0.1k 8 Jan 2015
2015-02-27 14:55:26 Using BerkeleyDB version Berkeley DB 4.8.30: (April  9, 2010)
2015-02-27 14:55:26 Default data directory C:\Documents and Settings\Mn\Application Data\Bitcoin
2015-02-27 14:55:26 Using data directory D:\Documents and Settings\Mn\Application Data\Bitcoin
2015-02-27 14:55:26 Using config file D:\Documents and Settings\Mn\Application Data\Bitcoin\bitcoin.conf
2015-02-27 14:55:26 Using at most 125 connections (2048 file descriptors available)
2015-02-27 14:55:26 Using 2 threads for script verification
2015-02-27 14:55:26 Using wallet wallet.dat
2015-02-27 14:55:26 init message: Verifying wallet...
2015-02-27 14:55:26 CDBEnv::Open : LogDir=D:\Documents and Settings\Mn\Application Data\Bitcoin\database ErrorFile=D:\Documents and Settings\Mn\Application Data\Bitcoin\db.log
2015-02-27 14:55:26 Error: Couldn't open socket for incoming connections (socket returned error An address incompatible with the requested protocol was used.  (10047))
2015-02-27 14:55:26 Bound to
2015-02-27 14:55:26 init message: Loading block index...
2015-02-27 14:55:26 Opening LevelDB in D:\Documents and Settings\Mn\Application Data\Bitcoin\blocks\index
2015-02-27 14:55:26 Opened LevelDB successfully
2015-02-27 14:55:26 Opening LevelDB in D:\Documents and Settings\Mn\Application Data\Bitcoin\chainstate
2015-02-27 14:55:26 Opened LevelDB successfully
2015-02-27 14:55:26 LoadBlockIndexDB: last block file = 0
2015-02-27 14:55:26 LoadBlockIndexDB: last block file info: CBlockFileInfo(blocks=125316, size=135455381, heights=0...119964, time=2009-01-03...2011-04-24)
2015-02-27 14:55:26 Checking all blk files are present...
2015-02-27 14:55:26 LoadBlockIndexDB(): transaction index disabled
2015-02-27 14:55:26 LoadBlockIndexDB(): hashBestChain=00000000660aaa727ebc610ed069e23abd28f516c614de894e1492994df78edc height=5350 date=2009-02-23 15:53:18 progress=0.000041
2015-02-27 14:55:26 init message: Verifying blocks...
2015-02-27 14:55:26 Verifying last 288 blocks at level 3
2015-02-27 14:55:26 No coin database inconsistencies in last 289 blocks (293 transactions)
2015-02-27 14:55:26  block index             406ms
2015-02-27 14:55:26 init message: Loading wallet...
2015-02-27 14:55:26 nFileVersion = 100000
2015-02-27 14:55:26 Keys: 0 plaintext, 201 encrypted, 201 w/ metadata, 201 total
2015-02-27 14:55:26  wallet                   15ms
2015-02-27 14:55:26 Reindexing block file blk00000.dat...
2015-02-27 14:55:26 Block Import: already had block 00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09 at height 1000
2015-02-27 14:55:26 Block Import: already had block 00000000dfd5d65c9d8561b4b8f60a63018fe3933ecb131fb37f905f87da951a at height 2000
2015-02-27 14:55:26 Block Import: already had block 000000004a81b9aa469b11649996ecb0a452c16d1181e72f9f980850a1c5ecce at height 3000
2015-02-27 14:55:26 Block Import: already had block 00000000922e2aa9e84a474350a3555f49f06061fd49df50a9352f156692a842 at height 4000
2015-02-27 14:55:26 Block Import: already had block 000000004d78d2a8a93a1d20a24d721268690bebd2b51f7e80657d57e226eef9 at height 5000
2015-02-27 14:55:27 UpdateTip: new best=0000000083be2e513d76f87ebdf93310040ecb5ec14556bbe2b635bad65bdbdb  height=5351  log2_work=44.385884  tx=5419  date=2009-02-23 15:56:37 progress=0.000041  cache=1

{several more of these entries, deleted to save space}

2015-02-27 14:55:28 UpdateTip: new best=00000000507fcfe6138eaf4ebbb1766337d78bbbda1f5e15fba2c822d77ec01c  height=5762  log2_work=44.492626  tx=5830  date=2009-02-27 10:53:38 progress=0.000044  cache=411
2015-02-27 14:55:28 mapBlockIndex.size() = 5764
2015-02-27 14:55:28 nBestHeight = 5762

Any assistance would be appreciated, cross posting this in the Bitcoin core 0.10.0 release thread, too.
17  Economy / Trading Discussion / Purchsed my first BTC, spent my first BTC on: February 26, 2015, 11:00:23 PM
Today I bought my first BTC from an exchange.  I signed up with several, but either didn't want to use their online wallet, or I had to physically mail a payment to them, so it took me a few exchanges before I found one I liked.  I settled with using BitQuick and the transaction was smooth, simple, and quick!

I turned right around and spent the BTC on a new power supply.  The future is now, and we're living in it.
18  Other / Obsolete (selling) / [!SOLD!] Kill A Watt (new in box) on: February 25, 2015, 07:11:11 AM
0.08BTC shipped to USA (others contact for shipping cost), will do escrow
19  Other / Politics & Society / Mars Missions Are A Scam on: February 23, 2015, 10:46:07 PM

Curious what this community thinks on this topic?  I am of the opinion that we have progressed beyond "get a man there first" like in the 1960s for the moon missions; our robots can do most of the exploring and field work at a fraction of the cost it would take to get humans there, and they do it much safer.  As the tech improves our robots will only get better at it.  I can't see any real benefit, especially when cost is factored in, to sending humans other than a cool factor or to say, "I did it first!".

I can get behind asteroid mining much sooner than I can a manned Mars mission.
20  Economy / Digital goods / [SOLD] $40 BevMo! gift card on: February 20, 2015, 05:54:31 PM
Selling a $40 BevMo! gift card, asking 0.11BTC.  Contact me if interested.  I will do escrow at your cost if you feel it's necessary.
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