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481  Economy / Service Discussion / CampBX on: November 07, 2012, 08:23:05 PM
I just noticed the CampBX exchange recently.

Whenever people discuss alternatives to MtGox, it is usually bitfloor (US) and bitstamp (Europe) that comes up.  Is there a reason CampBX is not recommended, or did I just miss it?  Does anyone has experience with CampBX?
482  Bitcoin / Armory / Re: Building Armory on OSX on: November 06, 2012, 12:25:25 PM
Right, when running the "make swig" command, it processes for while then ends with:

swig -c++ -python -classic -threads -outdir ../ -v CppBlockUtils.i
make: swig: No such file or directory
make: *** [CppBlockUtils_wrap.cxx] Error 1

Is swig in /usr/local/bin?  If so, you probably just need to add /usr/local/bin to the PATH

picobit, are you also setting PYTHONPATH?

Otherwise, I don't see how the system python would find pyqt.

Yes indeed, I set PYTHONPATH.  I will edit my post and add it.
483  Local / Skandinavisk / Re: bank overførsler og skatt i norge on: November 05, 2012, 09:52:44 AM
Jo, det kunne godt gå hen og blive et problem.  Og selv hvis det ikke er et problem i dag, så kan der om nogle år komme en ny praksis, hvor en myndighed begynder at data-mine for at finde "socialt bedrageri" (som det hedder i DK).  Jeg ville ikke turde gøre det, i hvert fald ikke uden en anonym måde at sælge bitcoins på.

Bortset fra det: Er mining ikke en ret tvivlsom forretning?  De nye ASICs kan sikkert give en god profit de første måneder, men så vil sværhedsgraden blot stige indtil det igen er en marginal forretning.  Med alle de mange ASICs i pre-order er der endda en risiko for at sværhedsgraden stiger så meget, at allerede betalte ASICs bliver uprofitable.
484  Bitcoin / Armory / Re: Armory - Discussion Thread on: November 05, 2012, 09:27:57 AM
You should post your steps over at https://bitcointalk.org/index.php?topic=73648.0

I've been having weird problems where I have to compile against the system python, but set the PYTHONPATH to brew.  I would love it if I could figure out how to compile against brew's python.
Finally got around to doing that.  But I don't use brew's own python.  As I understand it, the whole point of homebrew is that you don't have to duplicate stuff that is already there.  The homebrew python is for those who really need a special version - I don't know who that is, but maybe someday I will find out the hard way :-)
485  Bitcoin / Armory / Re: Building Armory on OSX on: November 05, 2012, 09:23:39 AM
I installed the new "threading" version of Armory under Mac OS X Mountain Lion.  Although still slightly experimental, it is the version that etotheipi says is going to be the official version real soon now, when Armory goes into beta (from alpha, see https://bitcointalk.org/index.php?topic=56424.msg1315445#msg1315445).

I use homebrew to install the dependencies.  On a Mac, there are at least three competing package managers for Unix/Linux software, homebrew, macports and fink.  I would be seriously surprised if it matters which one you choose, so don't let this thread decide for you.  Also, I have chosen to use the system's Python installation, and *not* install homebrews own python.  This is more in line with homebrew's philosophy of not duplicating packages, and is one of the reasons I chose homebrew.  But again, I really cannot claim superiority of this approach [in fact, I really don't know what I am doing Smiley ], and I am sure both choices are equally good for Armory.

So here are the steps (partly from memory, forgive me if I forgot something essential!).  All of this is done in a Terminal window.

0) Be sure to have the newest xcode installed, including the command line tools.

1) Install homebrew by copy-pasting the ruby installation command from the homebrew web page into the Terminal, see http://mxcl.github.com/homebrew/    

1a) You probably want to run brew doctor and fix any fixable problems before proceeding.

2) Install the first batch of prerequisites for Armory
Code:
brew install cryptopp
brew install swig
brew install sip
brew install qt
brew install pyqt
brew install berkeley-db

2a) (EDIT)  You have now installed Python stuff in /usr/local/lib.  The standard OS X Python will not find them, unless you add the directory to PYTHONPATH, e.g. by adding this line to the .profile file in your home directory
Code:
export PYTHONPATH=/usr/local/lib/python2.7/site-packages:$PYTHONPATH
Note that the .profile file starts with a period, meaning that it is a hidden file.

3) You also need some Python packages not in homebrew.  These can be installed with Python's easy_install or with pip (easy_install pip).  I think pip makes it easier to uninstall later, but neither of them do a proper job when it comes to package management Sad

Code:
easy_install twisted
export BERKELEYDB_INCDIR=/usr/local/Cellar/berkeley-db/5.3.21/include
easy_install bsddb3
WARNING: Don't uncritically copy-past the BERKELEYDB_INCDIR path above, it will change as new versions come along.  Instead, type it using TAB-completion.

4) Get the Armory source code, and switch to the threading branch (this assumes you want it placed as a subdirectory under your home directory, replace the first cd command if you want it elsewhere).

Code:
cd ~
git clone git://github.com/etotheipi/BitcoinArmory.git
cd BitcoinArmory
git checkout threading
(I am no git wizard - this could undoubtedly be done as one git command.)

5) Compile the C++/swig part of Armory.

Code:
cd cppForSwig
export CFLAGS=”-arch x86_64″
export ARCHFLAGS=”-arch x86_64″
make swig

6) Return to the main Armory directory

Code:
cd ..

7) Try it out!  Make sure you have internet, that the Satoshi client is running and (preferably) that it has finished catching up.

Code:
python ArmoryQt.py

8 ) Have fun.  Although I do have a bitcoin address in my signature, I really think you should donate to the Armory guys instead!

486  Bitcoin / Armory / Re: Armory - Discussion Thread on: November 04, 2012, 09:02:50 AM
I can add that there is definitely some kind of race condition when it comes to Armory reading the blockchain database while the Satoshi client writes to it.  I have several times seen Armory crash in that situation.  It typically happens when the Satoshi client is catching up, and I start Armory while this is happening.  Then suddenly Armory crashes.  But it is rare, I cannot reproduce it on demand, and I was stupid enough not to save info about the crash (not that it seemed particularly informative, I think it was just a segfault with no info about where in the code it happened).
487  Bitcoin / Bitcoin Discussion / Re: Could declaring Bitcoin a religion protect it from Finacial Regulation? on: November 04, 2012, 08:26:05 AM
Calling Bitcoin a religion would do nothing to advance the cause of freedom nor invoke any legal protection, and would make us look psychotic and out of touch.
As if sending lots of money to a guy with an eyepatch promising 7% per week from a secret business plan hadn't already done that
 Undecided
488  Bitcoin / Armory / Re: Armory - Discussion Thread on: November 03, 2012, 10:16:41 PM
I guess it's a testament to the fragility of multi-threaded programming (or my own implementation of it).

I am amazed what you can do with multithreading in Python.  Python is a fantastic language, but multithreading is definitely not one of its strengths, with stuff like the "global interpreter lock" etc coming in the way.  I am impressed!
489  Bitcoin / Armory / Re: Armory - Discussion Thread on: November 03, 2012, 06:34:21 PM
I use Armory from git, which branch should I be testing?
Use the "threading" branch.  Although, I have been committing some updates directly to the threading so you are probably going to get a few more features than the others testing the installers I released (but hopefully no extra bugs!)

I just build the threading branch under Mac OS X Mountain Lion.  It is the first version of Armory that builds completely without any modification to the Makefile.  It is very nice that it starts right away!  I have only tried it very lightly (moved a few BTC between wallets), but so far it looks good!  Great work, Mr. -1  Smiley

490  Bitcoin / Project Development / Re: ICBIT Derivatives Market (USD/BTC futures trading) - LIVE on: November 03, 2012, 10:43:53 AM
Allright, I just added a way to change orderbook window size (it's same way how you change size of "your orders" window at the bottom, by clicking a small blue arrow pointing downwards). Instead of 5 entries in every direction you could see 11 now.
Thanks a lot!  This helps tremendously during normal trading.
Quote
It's not a totally proper solution because it's possible to fill up those 11 entries (or any more) too, if one wants to.
The depth of market chart would provide a much better overview, when it's done.
Of course if someone wants to sabotage the overview, they can still do it.  But I suspect that in most cases it will help a lot.
491  Local / Skandinavisk / Re: Hvad hedder "miner" på dansk? on: November 02, 2012, 09:41:26 AM

Neeej, det synes jeg nu ikke er godt.  Det kan godt være at en minør stadigt på dansk kan være en der graver miner, men jeg vil nu mene at på moderne dansk er det én, der fjerne miner fra slagmarken.  Og jeg vil da meget nødigt have en "mineret blok" på min computer - det må være en slags eksplosiv malware :-)

492  Economy / Service Discussion / Re: Bitcoin-24 blip and some of my funds have disappeared? on: October 31, 2012, 09:25:08 PM
They have also restored my account.  I had lost a single-digit amount of BTC, sending my account slightly negative(!), but now it looks like everything is as expected, at least within 0.2 BTC.  It looks like Bitcoin-24 survived the hack, at least for now.  Obviously, they must have had the majority of the funds in cold storage, as any sensible site.

493  Economy / Service Discussion / Re: Bitcoin-24 blip and some of my funds have disappeared? on: October 31, 2012, 02:57:23 PM
They are back up, but unfortunately they have been hacked  Angry

http://bitcoin24.zendesk.com/entries/22278332-mysqli-31-10-2012-server-attack
494  Economy / Service Discussion / Re: Bitcoin-24 blip and some of my funds have disappeared? on: October 31, 2012, 10:18:59 AM
The website has been down all morning.  Let's hope it is just service, not a hack.  The site has been acting up a bit lately, so they may have decided to take it down for maintenance.
495  Economy / Web Wallets / Re: Blockchain.info - Bitcoin Block explorer & Currency Statistics on: October 29, 2012, 01:11:18 PM
Why don't you take the cube apart, and make a chain of colored blocks.  Then you can write blockchain alongside it.  :-)

I am hopeless at drawing, but I hope you see what I mean.
496  Bitcoin / Project Development / Re: ICBIT Derivatives Market (USD/BTC futures trading) - LIVE on: October 28, 2012, 07:54:52 PM
I don't think this should wait for a redesign.  It would be very, very useful if you could just place a link on the page to a separate page displaying the full order book. It does not need to be something fancy that autoupdates, initially just an ugly page showing a snapshot would be great.  We really need it! Smiley
Allright, tomorrow I'll add it some way or another.

Is there any hope of seeing this anytime soon.  The other day I refrained from trading because I couldn't see what I was doing due to a row of tiny, very close bids.
497  Bitcoin / Bitcoin Discussion / Re: Real life bitcoin scenario for non-bitcoiners on: October 27, 2012, 01:46:40 PM
Awesome, I had a feeling this thread would be fun. Thanks for some really interesting suggestions. So it seems the main issue (apart from people's ignorance) is that the clerk is forced to make a choice to either risk double-spend or make Adam wait fo X minutes for at least 1 confirmation. That kindof sucks. I heard proposals that, in theory, this could be solved by using a bitcoin bank where Adam would deposit some of his bitcoins and this institution would be responsible for preventing double-spends of Adam's deposits. Clerk would recieve btc form bank, not directly from Adam. Or do you have other ideas?

That is because using bitcoin for shopping candy is the wrong solution for the wrong problem.  There is literally no advantage to bitcoin here - but not much of a disadvantage either, since the risk of a double-spend is probably below the risk of accepting counterfeit cash or stolen visa cards.

The good use-case is Adam buying something on the net (preferably something legal!).  That is where bitcoin - even probably with escrow - will be competitive.
498  Local / Skandinavisk / Re: Det norske Piratpartiet trenger din støtte on: October 26, 2012, 06:38:47 AM
Men Pirater er liksom mer i vinden 
Da ikke blandt bitcoin-folket Smiley
499  Local / Skandinavisk / Re: Hvad hedder "miner" på dansk? on: October 26, 2012, 06:37:51 AM
Tak for jeres forslag!

Problemet er nok at "mining" faktisk også er et ret tåbeligt ord på engelsk i denne forbindelse.   Grin
500  Local / Skandinavisk / Hvad hedder "miner" på dansk? on: October 25, 2012, 12:08:46 PM
Hej!

Hvad hedder "miner" på dansk?  Minearbejder lyder helt fjollet.  Og hvad hedder "mined" som i "recently mined block"?
Jeg hører også gerne hvad det hedder på svensk og norsk, det kan jo være god inspiration. Smiley

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