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1  Bitcoin / Bitcoin Technical Support / Re: Recover wallet on: August 16, 2017, 04:23:10 AM
I can do it, i already have 2 people who hire me and success. But my rates isnt 100% success, so maybe if you still want, i can help you with it. But if you want more succesfull rates. Maybe you can try this site : https://walletrecoveryservices.com

Hey could you point to the people you helped? Thanks.
2  Bitcoin / Bitcoin Technical Support / Recover wallet on: August 16, 2017, 03:41:55 AM
I have a wallet with a non-trivial amount of BTC.
I have some idea of what's the password, but can't bruteforce it myself, perhaps someone who runs a recovery service can do it for a fee?
Is there a way to give one of the keys with no funds?
Let me know, there's over $5000 involved for whoever can help.
3  Bitcoin / Armory / Restore paper wallet without syncing Armory? on: August 12, 2017, 03:49:12 AM
So, I want to get the private keys of a backup. Is there a way to do it without syncing Armory?
Thanks.
4  Economy / Services / [Hiring] Write regexs to find addresses and keys for the 30 crypto currencies on: July 28, 2017, 03:13:01 AM
Hello, I need regexs for addresses, keys and if they exist for that crypto currency, master private and public keys.

Examples:

Bitcoin address \b[13][a-km-zA-HJ-NP-Z0-9]{33}\b 1MKVGqyJA9YkVRuDsGCvnYVJ6ivNtfe289

Bitcoin XPUB key (master public key for HD wallets) \b(xpub)[a-km-zA-HJ-NP-Z1-9]{107,107}\b xpub661MyMwAqRbcF3n3Sg6dL7C29vTi8prxevmhoDLLR6VJTetHp3rKGDQFzNSvVBZ2oxkepHnu1TE Wx1hiLjEvJ3rS3bRQQapr1BSyBzzz5JE Ethereum address \b0x?[0-9a-f]{40}\b 0x0dE0BCb0703ff8F1aEb8C892eDbE692683bD8030

The list should include at least 2 examples for each category so I can check it. It should be one example with address/key in the middle of a phrase and the other on a new line, after some unrelated text on the previous line.

If you can do it, please tell me your price and time it would take.
5  Economy / Services / Re: Need a programmer proficient in C#, preferably also Ubot for an automation soft on: July 23, 2017, 04:27:51 PM
This can be done be anyone experienced in C# in a week, 4 hours a day or so of work time each day.
Ubot is very easy to use and can be used for the most complicated parts (web browsing automation).
Willing to pay more to have it delivered urgently. Don't worry, won't be trying to underpay you. Money is good.
Payment will be done by milestones, where the source code should be delivered, in any cryptocurrency of your choice (bitcoin, ethereum, monero).
6  Economy / Services / Need a programmer proficient in C#, preferably also Ubot for an automation soft on: July 21, 2017, 11:56:20 PM
To summarize, it's a web bot to register domains, buy hosting and configure everything.

- From a list of identities (name, address, e-mail address) provided in CSV format, it should create an account at a domain one of the 3 domain registrars listed below, alternating them in order
- After the account is created (which may require solving a captcha), it should confirm the e-mail address, if necessary
- It should do the same process, now with one of the 3 hosting services listed below
- After that, it should take a domain name from a CSV file and buy it. Payment method will be bitcoin, which will be done by an app written by me. It needs to receive address and amount. Can be sent to it via JSON, by writing to a file. After it's bought it should be moved to another CSV file
- Next step is to purchase a hosting plan
- With that completed, it should wait until the hosting is enabled and assign the DNS records on the hosting to either the IP address of the hosting or delegating the nameservers, depending on the case
- When the DNS resolution is OK, after a few hours, it should upload the site (calling a script I have, very simple)
- After that, it should access the site and look for a string in the text, which will vary per site, to check it was uploaded correctly
- Both these checks should be done on all sites that are functioning on a regular basis, to see if any problems arise
- It should also notify the user when the domain is less than 30 days from expiration and handle the process
- The bot should also have saved when the hosting provider will expire and renew 5 days before
- The UI should notify the user what it's doing and be able to start and stop the process, saving the progress
- It should also be able to handle properly any problems that might arise, such as connection issues or notify the user if there's a problem using the site, if they changed the layout, for example
- The software should allow to change the hosting of a registered domains, by buying a new hosting plan and reassigning the information for that domain

I believe Ubot is ideal for the interaction with the registrar and hosting services, I have a license I could lend you if you don't have it. For the interface and health checks, I'd prefer C#.
7  Economy / Currency exchange / Re: Need someone to buy software using Paypal, paying in BTC on: July 19, 2017, 03:36:54 AM
I could do this for you, however the price is not 97$:



You might want to edit the OP. If you can manage to get the license for a cheaper price, let me know.
And if we end up making a deal, you'll have to go first or we need to get a escrow.

I need the support service bought, I have the license already.
8  Economy / Currency exchange / Need someone to buy software using Paypal, paying in BTC on: July 19, 2017, 12:41:13 AM
Hello!

I need someone to log into my account at ubotstudio.com and pay for support for one year.
I could do it myself, but I'm tired of paypal, they blocked an account with a few thousands last year and was a hassle.
So the idea is you login, pay with yours and that's it. The price is $97.

I could pay you $20 more or so for time it takes.

Let me know!
9  Economy / Currency exchange / Re: [WTS/WTB] BTC @ preev +/- for PM/PayPal/FreeCharge/PayTm/INR/GBP/AGC/Neteller on: July 05, 2017, 07:44:15 AM
Bought some pp,all good.
10  Economy / Services / C# - Need a coder for a simple Bittrex trading bot on: June 23, 2017, 06:36:48 PM
I need a simple Bittrex trading bot in C#. There are a few here: https://github.com/search?l=C%23&q=Bittrex&type=Repositories&utf8=%E2%9C%93

I need the best one from Github (or a better one from somewhere else if you can find it) updated to use 1.1 of Bittrex's API (they are deprecating 1.0, see here https://www.bittrex.com/Home/Api).

The requirements are simple:

- Wait for an order to either buy any of the cryptos at Bittrex
- Check the account balance to see it has enough
- Check the price 1 minute before receiving the order and at present time. If price is higher than a given percentage, cancel the purchase, otherwise continue
- Send the order, monitor it and reply the caller when it's processed in the order book
- Monitor the last trade price continuously, as fast as Bittrex allows. When a given threshold is reached (a percentage over purchase price), sell
- If price falls over a certain price, say 1.5 times original price, sell at the original price

Please see here for escrow:

https://www.xbtfreelancer.com/prj/3982/c-simple-bittrex-trading-bot
11  Other / MultiBit / How to read wallet files programatically from Multibit Classic? on: March 30, 2017, 12:54:29 AM
Basically need to read the addresses and keys of a few wallets for which I have the password.
How can I decode them?
Any pointers to tools or where to look in the code?

Thanks.
12  Bitcoin / Electrum / Re: UNCONFIRMED and NOT SHOWING UP on ANY TX explorers on: February 11, 2017, 06:28:57 PM
Hi,

I'm not a total newbie, but idiot? Hell yeah!

Using Electrum, I sent about 0.1 BTC, probably with a very low fee. Now the TX displays as unconfirmed in Electrum client, but is nowhere to be found or traced.

ID: 83e89a130ee5524adf85a28feeb5290cd0aa667016d2c6c1b7b875d73823a3eb

It's been stuck like this for nearly 3 days.

Any ideas?


EDIT: Could it be because of double-spending? I had already sent those a couple of days ago, then they re-appeared in my wallet and I re-sent them, but -- maybe -- they just re-appeared in my client without miners losing up their grip (WTF?)

Either way, now I'm stuck.

Possible a glitch in Electrum.
Close it, move your wallet file, which is at %appdata%\Electrum\wallets somewhere else (don't delete it!), open Electrum and restore from your seed.
Alternatively, chose another server, close it and it should be fine too.
13  Bitcoin / Electrum / Electrum 2.7.9 on Tails can't sign offline, I get "Server did not answer" on: February 11, 2017, 06:23:30 PM
When I click "Sign", it times out of some remote connection in about 10 seconds and says "server did not answer".
I'm trying to just sign a TX hex I copied from a watch only.
I can do it perfectly on 2.7.11.

Why would Electrum need to contact a server in order to sign a transaction?
14  Bitcoin / Bitcoin Technical Support / Re: Need help running btcrecover against blockchain.info wallet backup, help? on: February 02, 2017, 06:10:33 PM
Solved! Problem was the file encoding:

https://github.com/gurnec/btcrecover/issues/22#issuecomment-229782285
15  Bitcoin / Bitcoin Technical Support / Need help running btcrecover against blockchain.info wallet backup, help? on: February 02, 2017, 07:09:34 AM
So I downloaded my wallet file using "python -c "import urllib2,json;f=urllib2.urlopen('https://blockchain.info/wallet/WALLET-D-STRING?format=json');print json.loads(f.read())['payload']" > wallet.json.aes"

So far so good.
My problem is that I can't run btcrecover with it. Tried extracting the payload and with the original file and nothing.

Any help? $20 for whoever gives me the correct answer first, just give your address, if I can make it run, I'll send it.

When running:

Code:
python btcrecover.py --wallet wallet.aes.json --tokenlist tokens

I'm getting
Code:
Traceback (most recent call last): File "btcrecover.py", line 35, in <module> btcrpass.parse_arguments(sys.argv[1:]) File "/home/user/btcrecover-master/btcrecover/btcrpass.py", line 3420, in parse_arguments parse_tokenlist(tokenlist_file, tokenlist_first_line_num) File "/home/user/btcrecover-master/btcrecover/btcrpass.py", line 3691, in parse_tokenlist if line.startswith("#"): UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 21: ordinal not in range(128)

Thanks!
16  Bitcoin / Development & Technical Discussion / Re: Bitcoin's extended private masterkey derivation path? on: December 22, 2016, 09:35:34 PM
I ran some tests on a new wallet:

1) No password
http://pastebin.com/MZ6FHcNV

2) Added a password
http://pastebin.com/CMzAw4bF

3) Changed the password (was not allowed by the GUI or debug console to remove it)
http://pastebin.com/kJQzykNW

Basically, adding a password changes the xprv, but changing it does not.
Also, all the keys from the pool are added to the new wallet file after changing the password.

So basically, if you change the password, in order to restore you need to either:

- Keep the wallet file
- Only keep the xprv, as long as you are sure you are not going to receive to the addresses derived from the previous xprv

If I'm wrong, please correct me.
17  Bitcoin / Development & Technical Discussion / Re: Bitcoin's extended private masterkey derivation path? on: December 22, 2016, 02:50:25 AM
So... if I have a wallet without a password and create one or change the password, why does it change the master private HD key?
In order to protect future keys in case you were compromised. If an attacker somehow got your wallet at some time, they would be able to access all of your private keys generated previously and in the future. By changing the password, you then make it impossible for someone to be able to steal all of your Bitcoin in the future.

The same is done with non-HD wallets. When you change the password, the look-ahead keypool is refilled to prevent people from being able to steal future Bitcoin.

Given it had already derived private keys and addresses that might already been used, what happen to them?
Are they added as independent keys? So if I don't back them up, I wouldn't have access to funds, correct?
Yes. Those keys are marked as used once the address is used (either requested a new address or an address received Bitcoin). Those are kept individually after a password change.

Got it. So if I request a payment after changing the password, since the pool was modified, I'd get a different that the hypothetical attacker?
Thanks.
18  Bitcoin / Development & Technical Discussion / Re: Bitcoin's extended private masterkey derivation path? on: December 22, 2016, 02:29:28 AM
Hi, the dumpwallet command throws the private keys and a xprv.
Can I use it to derive all future addresses from the wallet?
So long as you do not change your password or set one. If you do, the xprv will change.

I'm a bit out of sync, I didn't know the reference client implemented HD keys.
Only in 0.13.0+

If so, could anyone tell me the derivation path used?
It uses the standard paths as defined by BIP 32. That is m/0/0/k for addresses you get from the wallet, and m/0/1/k for change addresses.

Thank you for the reply, I was able to derive correctly.

So... if I have a wallet without a password and create one or change the password, why does it change the master private HD key?
Given it had already derived private keys and addresses that might already been used, what happen to them?
Are they added as independent keys? So if I don't back them up, I wouldn't have access to funds, correct?
19  Economy / Currency exchange / Re: Need $20 pp, have btc on: December 22, 2016, 12:08:03 AM
Transaction done, thanks.
20  Bitcoin / Development & Technical Discussion / Bitcoin's extended private masterkey derivation path? on: December 21, 2016, 11:48:22 PM
Hi, the dumpwallet command throws the private keys and a xprv.
Can I use it to derive all future addresses from the wallet? I'm a bit out of sync, I didn't know the reference client implemented HD keys.

If so, could anyone tell me the derivation path used?

Thanks!
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