If I want to try it out on OS X I have to compile it myself.  I assume it is in a branch in git ?

Congratulations !!
 

Ouch! Are you saying that there is a cross-site scripting bug on blockchain.info, and that somebody is using it to redirect us users to blockchain.mobi?   

That would be very bad indeed.

I have not tried to check this myself, I do not trust that I would necessarily detect the problem, and don't want to lose my coins.

I have a similar setup (OSX, 8 GB ram) and have no problems.  It takes forever to load (5 min or so), and once loaded it occationally hangs for 10-20 sec at a time.

If you start it in the terminal, you can see the output while it reads the block files.  That shows progress :-)

Done.

It should certainly work.  What you have done is what we should all do!  Save the QR code or write down the secret key (around 20 characters, easily done).  That will also save you if you loose the phone.

It should be OK to delete the app's data - it should be restored when restoring from backup.  However, most people have automatic backups enabled, either over WiFi or when you connect the cable.  If a backup has occurred since you upgraded GA it is almost certainly too late.

If you have not sync'ed to icloud since upgrading, you can probably delete the app, and then restore from icloud. 

I think the keys remain in the keychain on the phone.  I do not use an encrypted backup of my iPhone (perhaps I should), and as I understand it that means that restoring on a different device means that the GA keys are lost.  But restoring on the same device works well.  It looks like the keys are backed up but with some hardware key encrypting them.  I would like to know the details!

How to recover:


I recovered from this mistake.  This should work on both jailbroken and unmodified iPhones, and will not loose your jailbreak if done correctly (point 5):

1) Swear at Google (OK, most of you have probably already done that)

2) Delete the Google Authenticator app from your Phone.

3) If iTunes sync automatically with your phone, you probably want to turn that off first.  Also, if you sync over WiFi it may already be too late - I really do not know.

4) Connect your phone to iTunes.  Enable the panel on the left.  It shows "LIBRARY", "STORE", "SHARED" etc and also the name of the phone.  On newer iTunes it is disabled by default, choose View / Show Sidebar.

5) Right-click on your iPhone, choose "Restore from Backup".  DO NOT use the normal restore button on the main window, as that will also restore the firmware and wipe and restore everythin (it will take ages resyncing, and any jailbreak will be gone).

6) After restoring, iTunes will resync your phone and reinstall Google Authenticator.  If you did not sync or backup since upgrading the app, the old version INCLUDING KEYS will be back.

7) If jailbroken, install Update Hider and hide the update to GA (I have not done this yet myself, but it should work).

Google just released a new version of Google Authenticator for the iPhone.  DO NOT UPGRADE, all your keys will be lost, and you will be locked out of all your exchanges etc.


Moderators: Please cross-post this to Important Announcements, it will hit a lot of Bitcoin users!


EDIT: See also http://www.reddit.com/r/Bitcoin/comments/1lp17r/i_just_updated_the_iphone_google_authenticator/


EDIT 2:  A newer version has been released by Google, solving the problem.  It turns out the keys were not lost, just hidden, so the new version actually restores them!

It means that they are loosing money and hope to earn more this way - perhaps due to the intoduction of stop-loss (*).  It also means that I will stop opening and closing positions twice every week, and either have a position open for longer time times or not at all.  Most likely the latter, the spread becomes comparable to the one at ICBIT, might at well use their futures.

(*) Any tool that makes it easier for traders to earn money will mean a loss for 1broker, since we all gamble against 1broker here, unlike a futures-based site like ICBIT - on the other hand ICBIT suffers from large contangos when users want to go long, and a pretty horrible spread due to low liquidity.

Hi traders!

Is there some way to get historical one-hour volume weighted average prices for the major exchanges?  I need data back to the beginning of 2013 (or at least back to just after the crash), and I am mostly interested in Bitstamp, BTC-E and CampBX, although MtGox and Intersango would be nice too.

If such data is not available, is it possible to get all the trades (I know it is possible for MtGox), then I could calculate it myself?

No, that would defeat the purpose.

And machines with less than 8 GB RAM.  But that is not the client going downhill, it's the size of the blockchain going steeply uphill

As far as I know Armory will create 100 addresses beyond the last one having activity on the block chain before deciding that it has reached the end of the list of relevant addresses.  You can increase this number manually somewhere in the user interface (perhaps only in expert mode).

Armory does NOT use the same wallet as the Satoshi client.  You should copy all files in the ..\Application Data\Armory folder.

It is probably a resource issue, Armory requires 64-bit and cannot run in only 4GB.  Reportedly, a new version will soon be released solving these problems. 

Settlement in BTC would be natural, as for all other ICBIT instruments.

The interest we pay / receive when trading BTC/USD, is that based on the rate the moment we opened the position, or does it vary also for already open positions?