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721  Other / Beginners & Help / Re: Semi Heart-Attack Here - Where have my bitcoins gone? on: September 23, 2012, 01:48:11 PM
From your description, it seems to me that you will be able to recover them.

Try this:

Bitcoin-qt.exe -rescan
722  Other / Beginners & Help / Re: [GAME] - Find a loaded address, and it's yours! on: September 23, 2012, 01:47:21 PM
After 448 Keys ... i must say it's tiring.

Lol - I think that's kind of the point Smiley

I will add some interesting reading on how big the keyspace actually is.

And in later releases, there will be additional rewards and quests, making it less boring/pointless...

 I just wanted to test the program Cheesy I know its pretty unlikely to find a adress, but hey human life in the universe happened so  this may eventually happen , too.
(and i need an excuse for not learning for my exam tomorrow...)

Edit : Excuse found , i just generated and checked over 450000 empty private keys ;-)

Really, 450000? How did you manage to check that many so fast?

BTW, I'm also real good at finding pointless stuff to do instead of studying for exams Smiley
723  Other / Beginners & Help / Re: [GAME] - Find a loaded address, and it's yours! on: September 23, 2012, 10:54:33 AM
After 448 Keys ... i must say it's tiring.

Lol - I think that's kind of the point Smiley

I will add some interesting reading on how big the keyspace actually is.

And in later releases, there will be additional rewards and quests, making it less boring/pointless...
724  Other / Beginners & Help / [GAME] - Find a loaded address, and it's yours! on: September 23, 2012, 09:44:58 AM
2^256 Deep Space Vagabond: A gentle, mostly theoretical* attack on Bitcoin...

Newbies wanting to get acquainted with some basic Bitcoin concepts in a fun and risk-free way, and take FREE chances in winning up to 105,611 BTC, can give the 2^256 Deep Space Vagabond a try Smiley

How it works

 The basic premise behind DSV is extremely simple:
 1. Generate Address
 2. Check Balance
 3. Grab the key and it's yours! (if you do manage to find a loaded address before the end of the universe)

 There is no actual help file at the moment but the app should be pretty self-explanatory.


How to get started

 Download and run the freeware application for Windows Vista/XP/7 32/64bit:

  Version 1.35c: http://dre.redmartian.org/dsv135c.exe  (stand-alone, 851K)

  SHA256 hash: 94b4164c87934525e702629b5bf5a4624ef4c3fb5b04c5b18df81852c398cd70

 Generate a new batch of addresses and pick some to examine their balance one by one.
 

A word of warning on downloading Windows executables

It's highly recommended not to blindly download random executables from this forum.
I do guarantee that this app does no malicious things, but I do always recommend to either run new executables in a sandbox (such as Sandboxie) or virtual machine or, for the technically-oriented, compile them from the source code when available.

As for DSV, after carefully considering whether to open source it or not, I decided to only make the source code to the initial Python-based (command-line) prototype freely available to all. The full source code to the current version will be made available on donation only (amount TBD).


Coming soon: Special modes!


Official thread

The official thread for this project can be found there


*due to the fact that 2^256 is so huge, this app will probably never
truly harm Bitcoin. And if it does, it will just mean that the basic
premises were flawed.

I hope this app will encourage good, constructive discussion of Bitcoin concepts
as a beneficial side-effect, but if it instead generates too much controversy, I will
consider withdrawing it.
725  Bitcoin / Development & Technical Discussion / Re: Could a "moderate" attack to Bitcoin help on the long term? on: September 23, 2012, 09:31:31 AM
I guess my 2^256 Deep Space Vagabond app/"game" could be viewed as a (very gentle) theoretical attack on Bitcoin Smiley
726  Bitcoin / Electrum / Re: Electrum - Bitcoin client for the common users (friendly and instant) on: September 23, 2012, 09:12:13 AM
Quote
I was thinking of a feature that allows you to show a QR containing a signed transaction. Then you could grab your phone with Electrum and snap it and send without ever physically moving anything from offline machine to net-connected machine. Truly an "air-gapped" process.

Intriguing, I like how you're thinking .... Amoury (and any off-line wallets that can sign) might be interested in this feature also.

All I can say is I'm real glad BkkCoins is taking strong interest in contributing to Electrum and will quickly become an invaluable asset to the "team"... Smiley
727  Bitcoin / Wallet software / Re: Searching alternative client... on: September 23, 2012, 12:06:53 AM
I now have loaded the Beta of Multibit. Its portable from the start, thats good. And the loading of the blocks is very fast. Way faster then in the normal network. But the blockchain is way smaller than the original.
So why is it smaller? Is it encrypted or only the last blocks are hold? And it seems the blocks arent loaded normal. Are the blocks loaded from a server and would this hold a securityrisk? I mean when someone would modify this blockchain i load from the server then my wallet would believe it isnt it?

So how secure is this?

Then i loaded the portable version of electrum. Why is it named stealth?
I started it and wanted to create a wallet. But then it asked me to choose a server. So does this mean the blockchain isnt downloaded but instead a chain from a server will be used? Doesnt this have the same risks like multibit in it?
Or is the wallet stored at the server too? I mean then i would need to trust the coder that my wallet is safe there.

Am i too cautious here?

What "stealth" means in this context is defined here: www.portablefreeware.com/faq.php

Your wallet is never stored on a server.  Electrum servers run full bitcoind nodes to serve the blockchain. In theory the worst that a malicious server can do is lie to you about your balance or a transaction, but it can never steal any coins as it doesn't have your private keys.
728  Bitcoin / Wallet software / Re: Searching alternative client... on: September 22, 2012, 11:42:59 PM
electrum seems cool but misses a feature i want : socks proxy support.

You're in luck, this feature has just been added (check the main Electrum thread)! It is still under testing though, but if you're comfortable enough with github and feel adventurous, you could try it out. 
729  Bitcoin / Bitcoin Discussion / Re: 200,000 blocks / 10M coins today! on: September 22, 2012, 10:50:54 AM
Wow, 200001 already! Block 200k is now history Wink

And 10,000,150 total BTC.
730  Bitcoin / Bitcoin Discussion / Re: 200,000 blocks / 10M coins today! on: September 22, 2012, 10:48:31 AM
Yeah! Celebrate Smiley

Proud to be part of this right now.
731  Bitcoin / Bitcoin Discussion / Re: 200,000 blocks / 10M coins today! on: September 22, 2012, 10:38:36 AM
Breaking news: On block 200000, satoshi will come back among us! Smiley
732  Bitcoin / Bitcoin Discussion / Re: 200,000 blocks / 10M coins today! on: September 22, 2012, 10:34:03 AM
200000

Not yet! Smiley

Feels like Dec 31, 1999 23:59...

733  Bitcoin / Bitcoin Discussion / Re: Hitting 200,000 blocks / 10M coins today! on: September 22, 2012, 10:07:31 AM
yep, total coins 9,999,850
734  Bitcoin / Bitcoin Discussion / 200,000 blocks / 10M coins today! on: September 22, 2012, 09:13:33 AM
That's quite a milestone... So I thought it might be worth celebrating!

The beer is on me Smiley

Currently we are at block 199988. So, in about 2 hours!
735  Bitcoin / Electrum / Re: Electrum - Bitcoin client for the common users (friendly and instant) on: September 22, 2012, 09:09:13 AM
For those interested in using Electrum over Tor:  

 just configure your Electrum proxy settings as follows (and of course, Tor needs to be installed first):
 
  


Note: I haven't had a chance to test this myself yet - can anyone try it out?
736  Other / Beginners & Help / Re: EDIT- 60 bitcoins needed ( 850 USD$) via paypal on: September 22, 2012, 05:29:16 AM
Just wondering, what methods did you use with the above 2 purchases? Paypal or something else?
737  Economy / Marketplace / Re: $1,000 bounty for Blockchain.COM (not .info) (Updated to $1,500) on: September 21, 2012, 06:39:02 PM
I'm starting to suspect the owner is satoshi himself...

And if there's any truth to the rumors that he's dead,
that would explain the lack of response...
738  Bitcoin / Electrum / Re: Electrum - Bitcoin client for the common users (friendly and instant) on: September 21, 2012, 04:03:21 PM
Tested it on a clean Debian 6 system and on OS X 10.7 and it seems to be working. Before I merge it into master though I would appreciate it if there were some other people who could give it a quick run. It required some manual merging and that's always tricky. I previously made master unstable by merging too quickly and I would like to avoid that this time.

The fully merged tree can be found on github. Thanks!

Seems to work fine for me as well, on Win XP. I didn't test everything, though.
If more people could give it a try as well, it would be cool.

Things keep getting better and better!
739  Bitcoin / Development & Technical Discussion / Re: [ANN] Fast blockchain C++ parser w/ source code on: September 21, 2012, 01:12:30 PM
Great, thanks!

Btw, are there any pre-built windows binaries available?
740  Bitcoin / Bitcoin Technical Support / Re: Can the encrypted wallet be recovered using the unencrypted? on: September 21, 2012, 04:50:51 AM
Approaching this from a different angle (assuming the thief hasn't found and spent the coins already - hopefully your password was strong enough, but check on blockchain.info whether the coins have moved):

try everything you can to recover the stolen laptop. This may be possible with some luck and if the thief isn't too smart.

You mentioned you are a dropbox user. Try the following: log on to the dropbox website and check your access logs - perhaps you'll discover the thief's ip address. Some people have been known to track and recover their stolen laptop thanks to dropbox logs. 

Or perhaps you have some other software running on that laptop allowing you to remotely access it? Teamviewer, remote desktop, ftp, telnet perhaps? 
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