client - Bitcoin-Qt setup: Change block-chain file ...

[HELP] bitcoin-qt.exe has stopped working

Hi guys, I'm fairly new to Bitcoins and I'm already scared that I've lost my wallet.
I used bitcoin-qt.exe to create a new one, let it sync, then transferred some funds over to it. Since then, every time I try to run it, it just crashes instantly. I'm running Windows 8.1 and neither the 32-bit nor 64-bit versions of bitcoin-qt work at all.
If I debug with Visual Studio 2012: it displays the following error:
Unhandled exception at 0x00B906CA in bitcoin-qt.exe: 0xC0000005: Access violation reading location 0x00000004.
I tried using Bitcoin Armory and that won't work either.
Is there any alternative Bitcoin client or some method I can use to recover my wallet and its bitcoins? I am desperate for help.
Thank you so much.
Apparently version 0.9.3 works fine. I'm going to see if I can recover my wallet with this version.
I uninstalled absolutely everything related to Bitcoin, deleted everything except my wallet, torrented bootstrap.dat, installed Bitcoin 0.10.0, and it works now, but it won't seem to recognize my wallet backup, even running with -rescan. I'll try some more. Thanks for the help though, you guys.
submitted by Huskehn to Bitcoin [link] [comments]

Odd Bitcoin Virus

So I decided to play around with bitcoin today. Started my own QT server, sent myself a few coins and used a plugin python script to verify that my wallet received them, used a tutorial to start my own bitcoinj server, and this is where things got weird. My razer keyboard's firmware stopped working. At first, I assumed that it was the driver so I deleted it by hand, no good, plugged it back in, still sending odd keys. After that I immediately took my computer offline and tried the keyboard on another throw away box that I have, same problem. In fact, it added a new exe (!) to razer's driver directory on my Windows machine (I was originally on Ubuntu). This keyboard had already been connected to that machine, it wouldn't have installed a new exe on connecting. So apparently connecting yourself to the bitcoin core is not only not safe, it has some of the most advanced attackers that I've ever witnessed. I want to specify that this only seemed to happen when I used bitcoinj to download a shortened blockchain. I guess that when you have to trust peers for anything, you are at risk of downloading malicious material, but I really thought that the existing clients (such as bitcoinj) would be smart enough to check blockchain md5's or something to prevent this. Absolutely brutal introduction for an interested programmer.
submitted by wreck_my_keys to Bitcoin [link] [comments]

Armory engine stuck?

(windows 7)
I installed Armory for the first time and it was building the database so I left it on overnight to finish.
In the morning, It said "bitcoind.exe has stopped working error"
then it tell ms "Armory is offline"
I relaunch the bitcoinQT app and eventually armory will continue to build the database (but with no % progress shown) and then soon after I get "bitcoind has stopped due to an error" and this process repeats.
Looking at bitcoinQT - I notice that it has been stuck at 28 weeks syncornizing for a long time. This was happenineg to me before I even installed armory. This was a main reason I installed armory because I was sick of bitcoinQT not syncing. Is this related?
How do I fix this?
Thank you
submitted by fuzzydunflop to Bitcoin [link] [comments]

Bitcoind.exe has stopped working when I start Armory.

I wanted to try out Armory, since it supposed to be super secure and all. Installed it, took all the security steps, made and test the back-up.
Now when I start Armory, windows immediatly reports Bitcoind.exe has stopped working. Armory will stay offline.
I have already pointed Armory to my correct Blockchain data and Bitcoin QT folder, since I dont save them in the default location. Also skipping the online check does not make any difference.
When rebooting my computer, sometimes Armory will sync for a few minutes and then Bitcoind.exe crashes and armory goes back to Offline :\
Anyone know what I can try to make this work ?
submitted by b44rt to Bitcoin [link] [comments]

Stratis Fork?

"Quick update on State of The Biblepay, and a request for any constructive criticism on a potential new idea.
So before I share the new idea I want to say I am committed to adding new Gospel features to BiblePay. I dont want to give the impression that we are moving away from core values or anything like that. I feel like our Dev Team that is forming behind the scenes now will be able to continue to maintain and enhance the wallet and the pool with more features to spread the Gospel. We do need to continue searching and implementing ways on spreading the Gospel to IT Geeks, as we need to be true to God and practice what we preach, in that since He commands us to feed his sheep (as we help the orphans) and spread his word, we can do this at the same time by enhancing the wallet.
Next, I want to explain some background. Ive been following Stratis for certain technical reasons over the last year and for a while I didnt think Stratis would affect BiblePay, but now I have reason to think it might be able to complement BiblePay if we complement Stratis. I was a corporate programmer for about 20 years and ended up programming in c# before I started a data company that has a product that is written in c#. So I do have a propensity to "understand" the architecture that built Stratis. Stratis is a rewritten blockchain infrastructure built from scratch in c#. Everything is there, the database, the hash function, the sha function, the blockindex, the syncing, everything. What Stratis does not have yet: No altcoins run stratis because the UI is still in its infancy, its a Web UI called Breeze. Also, they just finished writing POS a couple weeks ago so really no one was mining stratis except - in the stratis-berkeleydb-qt wallet using POW.
Anyway the reason I mention Stratis, is I think it would be interesting if we were the first Altcoin to run a Stratis fork. I was thinking, I have the team behind the scenes that could potentially port Stratis into Biblepay and Biblepay into Stratis, and we could write a new C# UI, one that is not web based (that would be Windows native forms based as an EXE download). So our contribution to Crypto in this case is we would check-in the ability to run a stratis back-end on an altcoin with a Windows native UI (IE that is biblepays contribution). The Second contribution would be adding PoBH (our hash class), and the Third would be adding Dash masternodes To the Stratis core. So another words, we would have a native windows wallet download with masternodes, a new UI, and full sync-compatibility with the existing Biblepay wallet and keys.... I would estimate this project "could" potentially make BiblePays marketcap worth at least $100MM. (As Stratis is $795MM). It also gives us SegWit (which we have a quote request out for), allowing us to run Lightning Network in the future. Its an exciting project, that I think devs would want to jump in and help us with also- as I know the c# corporate workplace is very deep- and that could ensure our long term stability as well. I truly think this project could be done along side our normal Gospel enhancements, in a safe way. (Safe as in parallel until the Stratis wallet works). We basically would release a windows wallet that would sync in a compatible manner to the Berkeley wallet, and offer a separate download. If this project took off, we could refocus our support into the c# wallet and find a way to port the c# to mono, and stop developing berkeleys wallet (to have one codebase in the future). It does offer an interesting perspective, to support one codebase that is potentially c# in the future. And finally this idea opens up one more huge market for us that is harder on the berkeleydb side: Stratis smart contracts. Stratis is working on that, and I feel our future full dev team can integrate smart contracts into the stratis code, contracts that are more efficient. Ones that offer consensus based on c# code (instead of the bitcoin main chain), and - possibly, smart contracts that execute actual c# language code (meaning they could be very complicated contracts).
The primary reason I write all this is to invite any constructive criticism on the idea. No I dont want to hear from people who do not know what they are talking about (for example, miner comments like Oh you are going to push us off linux, and kill us? ) Im talking technical and bitcoin and high level comments for this idea." -Rob
"Dash will release the Evolution upgrade soon with Dapi and much more. Dash is the future.
I think BiblePay should stay with the Dash business model and update the codebase as dash core release Evolution version.
Unless you have a way to keep the dash core business model and ADD Stratis features. That would be great.
Also, FYI, there is already a Stratis fork name Obsidian." -Samoshi
"Thanks! Didnt know about Obsidian. I see all kinds of Stratis talk in their ANN. Their whitepaper is missing. Looking at their wallet pics it looks like they modified breeze. To include instant messaging. Thats the stratis web UI I was referring to - I think we would gain traction if we had a UI that looked like our QT that ran in windows natively with stratis. I synced stratis a couple months ago using source against bitcoin and it syncs very fast. I believe because the database is using NoSql which is apparently pretty good. It looks like flat files on the drive.
Anyway, yes, I have evolution downloaded and running here. (Our other team needed to dissect it for their current project). So far it doesnt add anything to our needs for orphan payments, but I agree, we need to stay on top of potentially pushing new features back into biblepay. It does not include SegWit, so we really gain nothing by monkeying with the latest evolution check in at least for a little while.
But to address your question about masternodes: I fully promise we will stick to our roadmap, and deploy our masternodes and let our integrity rise and hopefully our price as more users buy to lease masternodes, and we embrace them. For stratis, Im thinking about potentially running a stratis biblepay clone in parallel, one that is compatible with our chain, and porting the masternode (sanctuary) features Into the stratis clone to make that clone compatible with biblepay.
If all went well theoretically, I was thinking (especially if our price was rising) about offering a second flavor of masternode in c#. One extra type of lease to run .NET code. (Thats just a concept for now)." -Rob
Is this news from Stratis relevant?
That should help a lot. The good news is the UI does not appear to exist anywhere (other than that breeze web UI), so Im trying to do something slightly pioneering.
On an interesting side note, all of stratis c# is written in the new cross-platform .NET "Standard core" version 2.0 (the one that was not written by microsoft), so the daemon actually runs on linux (and v2.0 does not have a UI for Windows).
However, .NET 4.7.1 (with windows.forms UI) runs on windows, so putting a UI on it means it runs in windows and not linux. (We can look at mono on that later) but Im more concerned about writing a proof of concept now to see how it works.
Conceptually a linux user would have biblepayd, the ability to mine in linux, and run from the command line. Windows would have the UI. Then we would have our nix programmers port the UI to mono. There would be no QT version (LOL). Very interesting. -Rob
"I took a look at Obsidian, and Im happy to say that so far it is actually a port of Stratis with the Obsidian-QT wallet - meaning it does not yet include any Prod c# code, or c# UI. The UI in the Obsidian-QT wallet is the same as our Biblepay-QT wallet (minus the masternodes). The thing they are releasing at Christmas is messaging for Android - not c# web UI either.
Thats good because that means we have a wide open space to do something pioneering with Stratis still.
We might not be the first as this is a HUGE project. I think it will take a quarter to release a proof of concept.
But its good to know we might be able to focus on this project for something very original and bright for BiblePay.
I was thinking of a huge potential side effect we might inherit if we ever have a c# wallet. We could literally add hundreds of gospel features in the wallet without breaking compatibility with a very quick release schedule as the codebase would be pool compatible, and in addition we could add tons of windows forms features to the code." -Rob
submitted by togoshige to BiblePay [link] [comments]

Keep your Bitcoin Core UASF node up to date

Note to folks with a fake uacomment: that neither helps nor works. Upgrade to BIP148!
Those who want to use BIP148 have two main choices: UASF BIP148 and Bitcoin Knots. The first has bip148 enabled by default. The second follows a PR originally proposed to Bitcoin Core (and rejected) which adds bip148=0 (option, disabled by default) so it needs to be enabled in configuration file or at runtime.
Make a backup of your wallet.dat, just in case.

Bitcoin Core SegWit UASF BIP148

This is the "original" BIP148 version.
1) Get the source at
Current release: v1.0 -
As a reminder, your install options are as follows:
a) Binaries: Bitcoin Core v0.14.2-based UASF SegWit BIP148 can be downloaded here (decompress and then run desired binary (bitcoind for daemon/server, bitcoin-cli for the CLI, etc.) which you can find in bin subdirectory; there's also a PPA for Ubuntu users who prefer apt-get install).
b) Source: get the source at the URL at the top. Build as usual, following official Bitcoin Core instructions.
To install, stop and (if you want) remove existing Bitcoin Core. Then install and run Bitcoin SegWit UASF BIP148. Windows users who use installer (filenames that end with *setup-unsigned.exe) should first uninstall existing Bitcoin Core before they install this version.
How to verify binaries (signatures):
You can also verify checksums by importing Luke's PGP key and ensuring checksums in SHA256SUMS.asc(example here) match those of the downloaded file(s).

Bitcoin Knots

This is Luke-Jr's Bitcoin release with many enhancements and a BIP148 option. You can find more at
Get it at Install procedure for binaries is the same as for UASF BIP148 binaries, but with one added step:
Windows users who use installer (filenames that end with *setup-unsigned.exe) need to first uninstall existing Bitcoin Core before they can install this version.
If you want to build from the source, refer to Bitcoin Knots documentation (because it has a number of different options compared to Bitcoin Core).
How to verify binaries (signatures): download and import Luke's PGP key, refresh PGP keys, then verify the signed checksums file corresponds to the checksum of the binary you downloaded for your system.

Updating installed binaries

If you're updating either UASF BIP148 or Knots binaries (which you downloaded as zip or tgz file and decompressed to your disk), stop Bitcoin, decompress newer binaries over old binaries, then start service again. You can also move old binaries and then deploy the latest binaries.

Reverting to Bitcoin Core

Before chain split

Prior to chain split (such as before Aug 1), you can "go back" by simply removing BIP148 or Knots and installing Bitcoin Core 0.14.2. You can't go back to an earlier release such as 0.12 (same behavior as with Bitcoin Core).
Starting with UASF BIP148 v1.0, however, there's less need to be concerned about going back to Bitcoin Core - as mentioned above, Bitcoin Core 0.14.2 behavior can be achieved by restarting UASF BIP148 v1.0 or Bitcoin Knots with bitp148=0.
Should you want to remove UASF BIP148-compatible and run Bitcoin Core 0.14.2, you can do this:
Then install Bitcoin Core 0.14.2.

In the case of a chain split

Please remember to pay special attention to wallet.dat if you use one. This section only deals with the change of the binary and blockchain rewind, and not coin splitting and wallet backups.
If chains splits on or after August 1st, you would have to rewind the blockchain in order to use a different Bitcoin release on another chain. Details will vary depending on the circumstances (for example, we can't know in advance which chains will exist.)
UASF BIP148 v1.0 (not older releases) makes it possible to set bip148=0 and restart which automatically rewinds the blockchain to be consistent with Core. If you wanted to change to Bitcoin Core, you could first restart UASF BIP148 or Knots with bip148=0 to rewind the blockchain, then uninstall the binaries and install Bitcoin Core.
If a chain split happens, check or this subreddit for specific details.

Be back in late July!

In the second half of July, check for updates on a weekly basis. There may be further updates or improvements.


2017-07-12 - reminder to pay attention to wallet backup in case of changing the binaries or startup options after a chain split
2017-07-11 - download links updated for v1.0, added about auto-rewind in v1.0, other small edits
Edit: this post may be updated prior to August 1st.
submitted by eustan to UASF [link] [comments]

CLAMS: Claiming Your CLAMS On Windows!

CLAMS: Claiming Your CLAMS On Windows!
Claiming your CLAMS takes an additional step or two that you may be unfamiliar with in your previous crypto-travels. The process isn't all that difficult, however. If you have any problems following the steps below: please feel free to comment or create a new post asking for assistance!
Download CLAMS
You can find the CLAMS Wallet HERE. Simply download the client and then run it once; it will automatically create the folders required from the following steps.
Back-Up Your Wallets
Bitcoin, Litecoin, and Dogecoin (like most crypto-currencies) keep the wallet file in the AppData/Roaming directory. This can normally be found at: C:/Users/USERNAME/.Appdata/Roaming/COINNAME/. To back-up your BTC, LTC, DOGE wallet files: stop the relevant client and copy the wallet.dat file to a secure place.
Copy Your Wallet
Now that your BTC, LTC or DOGE wallet has been securely backed-up, you can copy it into your CLAMS directory. Your CLAMS directory can normally be found at: C:/Users/USERNAME/.Appdata/Roaming/Clams/. If you have any CLAMS in your wallet, please be sure to back-up your CLAMS wallet file as well. Then, simply copy your BTC, LTC, or DOGE wallet.dat file into the CLAMS directory.
Start CLAMS with --salvagewallet
You may start the wallet with the argument --salvagewallet in two primary ways: * Create a shortcut for clams-qt.exe. Right-Click -> Properties. Add --salvagewallet to "Target:" ("C:\clams-qt.exe" --salvagewallet). * Open the Command-Line (Start -> "cmd.exe"). Type: "C:/SomeDirectory/clams-qt.exe --salvagewallet".
CLAMS Announcement Post
submitted by clams_are_people_too to CLAMClient [link] [comments]

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after my hard disk has got corrupted and my pc stopped working I purchased a new hard disk. have downloaded the bitcoin core wallet and added my backed up wallet.dat into /roaming folder. The wallet shows my correct balances and all transactions but I'm not able to unlock it with my correct password when I try to send or receive bitcoins (I did secure it with my password). Bitcoin qt exe has stopped working santander 1plus visa card ausgleichen. Option Pricing Uni Bonn. Auto Handel Bania Bitcoin Core Documentation. bitcoin qt exe has stopped working kostenlose schufa auskunft privat. Bitcoin 10 Ocak 2018. Handler Netty Mix Markt Kaiserslautern Expert Advisor Mt4 Automated Trading. bitcoin qt exe has stopped working paysafecard pour bitcoin litecoin-qt.exe's description is "Litecoin-Qt (OSS GUI client for Litecoin)" litecoin-qt.exe is usually located in the 'C:\Program Files\Litecoin\' folder. If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page. bitcoin-qt.exe's description is "Bitcoin-Qt (OSS GUI client for Bitcoin)" bitcoin-qt.exe is usually located in the 'C:\Program Files\Bitcoin\' folder. If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page. How do I move my Bitcoin Core data file. Safely exit Bitcoin Core (bitcoin-qtbitcoind). Make a new secure backup copy of your wallet.dat.; Move you entire .bitcoin folder to the new location, except for bitcoin.conf which you must leave where it is in the existing .bitcoin folder. Edit bitcoin.conf to add datadir={full path to new .bitcoin folder}.; Start Bitcoin Core and check properly that ...

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Bitcoin Stealer in work 2017

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