[ANN][BLC] Blakecoin Blake-256 for GPU/FPGA With Merged Mined Pools Stable Net

[cinnamon_carter]

Here is a guide to recovering or repairing a corrupt wallet I wrote a while ago , it has helped a lot of people fix their wallets


Quick Surefire Guide - How to rebuild a qt wallet if you lost your coins - Step by Step Instructions

https://cryptocointalk.com/topic/13377-quick-surefire-guide-how-to-rebuild-a-qt-wallet-if-you-lost-your-coins-step-by-step-instructions/


edit one--- if you fixed it bluedragons way (which is what I would try first) make sure you run the qt with the -rescan option if you are still missing coins.

[Mek]

Thanks for your posts, guys.

-salvagewallet option

this will move any existing wallet.dat to wallet.[timestamp].dat and then attempts to salvage public/private keys and master encryption keys (if the wallet is encrypted) into a new wallet.dat. Once you have your keys in place you can import them into a fresh copy of blakecoin and recover your balance e.g backup the data folder and put the new wallet.dat into it and rescan/download the whole blockchain from scratch

had same issue with other coin wallets it does not salvage the wallet unless you force it even though it says salvage failed

you should only need to run the -salvagewallet option once to get a new working wallet.dat with your keys!

When I run Blakecoin-qt with the -salvagewallet option, all it does is renaming the wallet to the .bak file and exiting immediately (I can see the splash screen for split second). It does not create a new wallet.dat file or anything. I used WinMerge to compare the .bak file and the original corrupted wallet.dat file and they are exactly the same.
I tried running Blakecoin-qt -salvagewallet again but with no change.
Then, when I removed the -salvagewallet option and ran Blakecoin-qt without arguments, it created a fresh new wallet.dat, with 0 BLC of course (because it could not find wallet.dat).

is your wallet.dat encrypted? that might prevent the salvage option from working (not sure). if BD's suggestion doesnt work, try this: make sure you backup the wallet.dat, and then delete everything else in your blakecoin data directory (its in ~/.blakecoin/ on linux, not sure of windows). doing this will cause the wallet to re-download the blockchain, so your balance will fluctuate until it reaches the current block.

No, it's not encrypted. But I will try redownloading the blockchain as you suggested when I have time.

Here is a guide to recovering or repairing a corrupt wallet I wrote a while ago , it has helped a lot of people fix their wallets


Quick Surefire Guide - How to rebuild a qt wallet if you lost your coins - Step by Step Instructions

https://cryptocointalk.com/topic/13377-quick-surefire-guide-how-to-rebuild-a-qt-wallet-if-you-lost-your-coins-step-by-step-instructions/


edit one--- if you fixed it bluedragons way (which is what I would try first) make sure you run the qt with the -rescan option if you are still missing coins.

If I understand correctly, using this guide, I need to be able to open Blakecoin-qt with the corrupted wallet but I cannot because it only displays "Wallet corrupt, salvage failed" and then exits immediately. So I cannot access transaction log or export any keys.

[BlueDragon747]

Thanks for your posts, guys.

-salvagewallet option

this will move any existing wallet.dat to wallet.[timestamp].dat and then attempts to salvage public/private keys and master encryption keys (if the wallet is encrypted) into a new wallet.dat. Once you have your keys in place you can import them into a fresh copy of blakecoin and recover your balance e.g backup the data folder and put the new wallet.dat into it and rescan/download the whole blockchain from scratch

had same issue with other coin wallets it does not salvage the wallet unless you force it even though it says salvage failed

you should only need to run the -salvagewallet option once to get a new working wallet.dat with your keys!

When I run Blakecoin-qt with the -salvagewallet option, all it does is renaming the wallet to the .bak file and exiting immediately (I can see the splash screen for split second). It does not create a new wallet.dat file or anything. I used WinMerge to compare the .bak file and the original corrupted wallet.dat file and they are exactly the same.
I tried running Blakecoin-qt -salvagewallet again but with no change.
Then, when I removed the -salvagewallet option and ran Blakecoin-qt without arguments, it created a fresh new wallet.dat, with 0 BLC of course (because it could not find wallet.dat).

is your wallet.dat encrypted? that might prevent the salvage option from working (not sure). if BD's suggestion doesnt work, try this: make sure you backup the wallet.dat, and then delete everything else in your blakecoin data directory (its in ~/.blakecoin/ on linux, not sure of windows). doing this will cause the wallet to re-download the blockchain, so your balance will fluctuate until it reaches the current block.

No, it's not encrypted. But I will try redownloading the blockchain as you suggested when I have time.

Here is a guide to recovering or repairing a corrupt wallet I wrote a while ago , it has helped a lot of people fix their wallets


Quick Surefire Guide - How to rebuild a qt wallet if you lost your coins - Step by Step Instructions

https://cryptocointalk.com/topic/13377-quick-surefire-guide-how-to-rebuild-a-qt-wallet-if-you-lost-your-coins-step-by-step-instructions/


edit one--- if you fixed it bluedragons way (which is what I would try first) make sure you run the qt with the -rescan option if you are still missing coins.

If I understand correctly, using this guide, I need to be able to open Blakecoin-qt with the corrupted wallet but I cannot because it only displays "Wallet corrupt, salvage failed" and then exits immediately. So I cannot access transaction log or export any keys.

what does it say in the debug.log?

[LionOfNarnia]

Couple of noobish Qs about BlakeTrader...

1) Do we only have to register a destination addy once, i.e. after the first time can deposits be sent straight from the wallet without using the conversion link/captcha again?

2) After sending a maximum amount for exchange, how long must one wait before sending another one? i.e. Must one wait until the exchange has been completed & confirmed at the wallet before sending another or can it be done 'close to' immediately after the first one has been sent?

Cheers

[electron-coin]

Couple of noobish Qs about BlakeTrader...

1) Do we only have to register a destination addy once, i.e. after the first time can deposits be sent straight from the wallet without using the conversion link/captcha again?

Yes.  The destination addy that you registered is stored in our database and can be re-used indefinitely.  You can send future trades to that address without having to register again.

2) After sending a maximum amount for exchange, how long must one wait before sending another one? i.e. Must one wait until the exchange has been completed & confirmed at the wallet before sending another or can it be done 'close to' immediately after the first one has been sent?

Cheers

You can send another trade immediately after you have sent a maximum amount.  If you send over the maximum amount, it will be rejected by our servers.  

For example, the maximum per trade for BLC is 1,000 BLC per trade.

Send 2,000 BLC, the trade will be rejected.

But you can send 1,000 BLC, then immediately send another 1,000 BLC.  The trades will be processed serially.  However, the rates for the trades are updated continuously based on the rates on the exchanges as well as the amount of currency available.  So your 2nd trade may have slightly different rates.

I hope this explanation helps! 

[LionOfNarnia]

Thank you, yes it does 

... and I hope it helps others too!

All my trades have now completed successfully - I won't even try to pretend that I'm not spending the proceeds on increasing my Zeitcoin holdings

[Mek]

what does it say in the debug.log?

This:

2014-10-11 18:26:56



















2014-10-11 18:26:56 Blakecoin version v0.8.9.0-g8c5e74e-beta ($Format:%cD)
2014-10-11 18:26:56 Using OpenSSL version OpenSSL 1.0.1g 7 Apr 2014
2014-10-11 18:26:56 Default data directory C:\Users\Mek\AppData\Roaming\Blakecoin
2014-10-11 18:26:56 Using data directory C:\Users\Mek\AppData\Roaming\Blakecoin
2014-10-11 18:26:56 Using at most 125 connections (2048 file descriptors available)
2014-10-11 18:26:56 Using 8 threads for script verification
2014-10-11 18:26:56 init message: Verifying wallet...
2014-10-11 18:26:56 dbenv.open LogDir=C:\Users\Mek\AppData\Roaming\Blakecoin\database ErrorFile=C:\Users\Mek\AppData\Roaming\Blakecoin\db.log
2014-10-11 18:26:56 Renamed wallet.dat to wallet.1413052016.bak
2014-10-11 18:26:56 Error: Salvage found errors, all data may not be recoverable.
2014-10-11 18:26:56 Salvage(aggressive) found no records in wallet.1413052016.bak.
2014-10-11 18:26:56 Shutdown : In progress...
2014-10-11 18:26:56 Flush(false)
2014-10-11 18:26:56 DBFlush(false) ended               0ms
2014-10-11 18:26:56 StopNode()
2014-10-11 18:26:56 Flushed 0 addresses to peers.dat  5ms
2014-10-11 18:26:56 Flush(true)
2014-10-11 18:26:56 DBFlush(true) ended               0ms
2014-10-11 18:26:56 Shutdown : done

Good point to look in debug log. No records in wallet, hmm, how is that possible? Is this the end of the story?

[bzyzny]

i think if its not an encrypted wallet.dat then you could open it in a hex editor and search for the private keys, but this is not exactly easy, though i do recall seeing a short tutorial somewhere. hope it wasnt a lot of blc lost 

[satoutaka6612]

Blakecoin to participate in Bitcoin4iGaming?

[BlueDragon747]

Blakecoin to participate in Bitcoin4iGaming?

not unless you want to pay for entry last time I went to an event here "Satoshi Square - London." no one was interested in anything but Bitcoin  

if the event was called CryptoCurrency4iGaming maybe I would be more interested I did look at it but entry fees imho are far too expensive, I will go if someone else wants to buy me a ticket though  



 
*Note I can get a "10% Coinscrum member discount" even so its still seems a bit expensive and not received enough donations that would cover the cost    

also note that they are not accepting Bitcoin as payment for the event  

[BlueDragon747]

Good point to look in debug log. No records in wallet, hmm, how is that possible? Is this the end of the story?

when I have some free time will port pywallet or keyhunter and you can try those for recovery atm they need the blake hashing added, magic for Blakecoin and testing

https://github.com/jackjack-jj/pywallet/blob/master/pywallet.py
https://github.com/pierce403/keyhunter

Edit:
Ok ported and tested pywallet
https://github.com/BlueDragon747/pywallet

I will assume you can get python 2.7 installed and working on your system and that you are running on windows

here is the command:

to recover and build a new wallet *this can take awhile to process (note the folder paths, change to match your system locations/drives etc.)

Code:

python pywallet.py --recover --recov_device C:\pywallet\wallet.dat --recov_size 10Gio --recov_outputdir C:\pywallet\foundkeys

after the recovery is done you should have a "recovered_wallet_[xxxxxxxxxx].dat" file in C:\pywallet\foundkeys rename to wallet.dat and copy this to your data folder and it should work  

Note:
I would recommend you clear the chain data and allow the wallet to download and process from scratch alternatively you can use the -rescan command option

This will also work for a Photon wallet incase anyone gets same issue

Encrypted wallets: tested and it should work fine with encrypted wallets it will prompt for password or you can use the "--passphrase=YourPassword" in the command

Other commands:

to dump data *handy for backup but you most likely want to use the recover (note the folder paths, change to match your system locations/drives etc.)

Code:

python pywallet.py --dumpwallet --otherversion=26 --datadir=C:\pywallet > dump.txt

Linux example *not tested but should work (note the folder paths, change to match your system locations/drives etc.)

Code:

./pywallet.py --recover --recov_device /pywallet/wallet.dat --recov_size 10Gio --recov_outputdir /pywallet/foundkeys

[gaalx]

Blakecoin to participate in Bitcoin4iGaming?

not unless you want to pay for entry last time I went to an event here "Satoshi Square - London." no one was interested in anything but Bitcoin  

if the event was called CryptoCurrency4iGaming maybe I would be more interested I did look at it but entry fees imho are far too expensive, I will go if someone else wants to buy me a ticket though  



 
*Note I can get a "10% Coinscrum member discount" even so its still seems a bit expensive and not received enough donations that would cover the cost    

also note that they are not accepting Bitcoin as payment for the event  

why so expensive? what is happening there and what kind of information show that about 500 pounds?

[Mek]

Yes! This pywallet thingy worker and saved my wallet Thank you!
FYI, I used the 64bit python MSI installer for windows but version 2.7.8 because under 3.4.1 (which is recommended to download on python.org) it reported syntax error.

[BlueDragon747]

why so expensive? what is happening there and what kind of information show that about 500 pounds?

yeah expensive and it is only a type of trade show/conference with a few speakers and from the name of the conference itself I would say they are slightly bias towards Bitcoin  
http://bitcoin4igaming.com

iGaming deals with a lot of different types of gambling games/companies and Blakecoin could be used in place of Bitcoin at a much lower risk and still be a fully functional crypto currency system with better efficiency and transaction times, But as you can see from the name of the conference I think they just want to capitalize on the Hype/Spin of Bitcoin rather than use a long term sustainable efficient crypto currency system  

I think those funds are better spent on servers and infrastructure costs of running the Blake network than of on a long shot that I meet someone at the conference and am able to get some sort of deal for Blakecoin to be used on a online casino type gambling site, I have no issues with gambling or using BLC in such games but breaking into such a market from that type of conference its just unlikely imho

Yes! This pywallet thingy worker and saved my wallet Thank you!
FYI, I used the 64bit python MSI installer for windows but version 2.7.8 because under 3.4.1 (which is recommended to download on python.org) it reported syntax error.

Excellent happy that you got it working and kept trying  

any other problems or issues just let me know, always try my best to help out if I can  

[gaalx]

why so expensive? what is happening there and what kind of information show that about 500 pounds?

yeah expensive and it is only a type of trade show/conference with a few speakers and from the name of the conference itself I would say they are slightly bias towards Bitcoin  
http://bitcoin4igaming.com
iGaming deals with a lot of different types of gambling games/companies and Blakecoin could be used in place of Bitcoin at a much lower risk and still be a fully functional crypto currency system with better efficiency and transaction times, But as you can see from the name of the conference I think they just want to capitalize on the Hype/Spin of Bitcoin rather than use a long term sustainable efficient crypto currency system  

I think those funds are better spent on servers and infrastructure costs of running the Blake network than of on a long shot that I meet someone at the conference and am able to get some sort of deal for Blakecoin to be used on a online casino type gambling site, I have no issues with gambling or using BLC in such games but breaking into such a market from that type of conference its just unlikely imho

in Kiev took place such a conference, but I think I will make more sense of the webinar such a plan. At these conferences are serious financial transaction?

[Phantas]

I think  ELT and UMO minig not working on ny2 .
Blue , could you look at it?
Thanks

[electron-coin]

Thank you, yes it does 

... and I hope it helps others too!

All my trades have now completed successfully - I won't even try to pretend that I'm not spending the proceeds on increasing my Zeitcoin holdings

Thanks Lion and good luck with Zeitcoin!

I have set up additional trading pairs on BlakeTrader.  You can now trade Electron with Dogecoin and Peercoin.

I have also set up limited trading for Lithium.  I don't have a reference rate so I am just going to set LITH rate roughly between BBTC and BLC.  LITH rates will adjust according to how much LITH I have. 

Trade LITH to ELT:
http://blaketrader.com/lithelt1.php

Trade ELT to LITH:
http://blaketrader.com/eltlith1.php

Thanks!

[BlueDragon747]

I think  ELT and UMO minig not working on ny2 .
Blue , could you look at it?
Thanks

reset just incase

[bzyzny]

that is quite steep for a conference ticket! i agree that money would be better spent on something else.

Mek, glad you were able to recover your wallet! one of my friends lost ~$1k in BTC cause they didn't backup the wallet, so lesson is always backup your wallet folks

BD, is your port of pywallet different than krambles somehow? I vaguely recall kramble mentioning that his was outdated, incomplete, or something along those lines.
https://github.com/kramble/FPGA-Blakecoin-Miner/tree/master/blake_pywallet

[BlueDragon747]

that is quite steep for a conference ticket! i agree that money would be better spent on something else.

Mek, glad you were able to recover your wallet! one of my friends lost ~$1k in BTC cause they didn't backup the wallet, so lesson is always backup your wallet folks

BD, is your port of pywallet different than krambles somehow? I vaguely recall kramble mentioning that his was outdated, incomplete, or something along those lines.
https://github.com/kramble/FPGA-Blakecoin-Miner/tree/master/blake_pywallet

I had forgotten about kramble's version Doh  

oh well did not take long to port and my version is based on the newer pywallet version(not sure that makes much difference) and does have slightly different hashing as I am using blake in a few more places and it is tested working with encrypted wallets