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1  Economy / Currency exchange / Bitzlato.com - bitcoin exchange from early adopter on: December 27, 2017, 06:23:07 PM
Due to my background in software development and telecommunication, I was introduced to Bitcoin at the very beginning of its existence when nobody could imagine how important it may become in the nearest future. Learning about bitcoin in the late 2010, I was actively mining by Febrary 2011. Since 2013 my partners and I started to mine professionally in partnership with such companies as Bitfury, AsicMiner and Bitmain. Together we have built a great team of leaders who relentlessly work to make our customers successful.

In 2013, I had predicted the MtGox exchange failure, 6 months before it actually happened (https://geektimes.ru/post/190634/). MtGox followed the same path as a few other Bitcoin exchanges before them. The failure of Bitcoin exchanges made me think. What was the root cause of these failures? What needs to be done to avoid them? How users of exchanges can be protected from such events?

Since then, my team and I have analyzed numerous failure scenarios, including a simulation of a hacker attack by the exchange owners and operators, and we found a solution that allows us to operate a bitcoin exchange in a highly secure manner. Step-by-step we will introduce our strategy along with the working exchange platform. In addition, using our previous experience in software engineering, we are determined to provide the best user experience and productivity exchange to our customers.

Our product roadmap includes the following essential features:

- All pairs are be based on Bitcoin Cash
- No User funds blockage for uncertain time or due to regulation issues
- Best user experience on various software platforms
- Extremely low transaction fees
- Deposit/withdraw through p2p Telegram bot
- Unprecedented referral bonuses. It's a great chance to make money!

We are actively looking for beta testers!
During beta testing, exchange will operate free of charge, with great bonuses for bug seekers.
2  Bitcoin / Bitcoin Discussion / New era of fork-coins is coming on: April 23, 2017, 09:41:25 AM
What are the differences between “Altcoin” and “Forkcoin”?

“Altcoins” are not duplicating balances of bitcoin users. On the other hand, “forkcoins” are duplicating balances, and in order to access your early coin accumulation, you need to use same private keys, which were used before the “fork” release. Significant difference is focused on the ability of including capitalisation of “fork-coins” into capitalisation (i.e. market price) of the bitcoin.


Our solution

We suggest to make a decisive step towards Bitcoin future, with the help of “Hard-fork”, which can be carried out anytime and is not limited with certain dates or other party’s opinions.

Issues, related to up-scaling of the network are being solved by implementing all best achievements, which created in “altcoins” As for decentralization - it is being achieved by changing the hash-algorithm (Triple SHA256, for instance) for graphics and based mining and with a future opportunity of using various gadgets at the same time.

We had to stick to the original ideas of Satoshi Nakamoto, as best as we can, where it is possible. On this stage we upgrade at least 2 elements: decentralized mining, based on GPU-type graphics card, which provides way more secure network and less risk of attacks. Clients (i.e. software), which are written by different teams provide less risk of having mistakes in a bitcoin code.

    Entire balances and private keys of users must be saved.
    Economic model should remain the same. (Coin generation, 21 mil coin limit, etc.)

Bitcoin should obtain all the best, from “Altcoin” !

There are a lot of great improvements in “altcoins”, which are oriented on an anonymity, speed of transactions confirmation and efficient history storing. Unambiguous, clear list of what needs to be included is not formed yet, and will depend on developers.

We support any “fork-coins” which are oriented on an up-scaled Bitcoin available for everybody.

Our initiative is non-commercial. We do not receive any profits from “fork-coins” at the same time, with different technical specifications.


How do we expect it to develop?

Nowadays , we have such parties, as: Bitcoin Core, Bitcoin Unlimited, “altcoin” developers.

Step 1.

As soon as the hard fork takes place, new Bitcoin costs < 0,000000001$. But, generation and exchange process can’t be stopped, and it would probably be hated​ ​ by Blockstream/Core, which would give us advantage. Even if they are not reacting, it is still a win-win situation for us.

Step 2.

This reaction varies, and changes the price of the new bitcoin up to 1-10$. Carefully will join such parties as: “Bitcoin Unlimited”, “Classic” and “XP”, because they truly realize the essence of changes. Without “HardFork”, they simply act in a standby mode. Now, they fully implement code into real life. Also a few alternative “clients” appear which are not supported only by us, and as a consequence, the whole Bitcoin software is gradually improving in terms of reliability. “GPU” miners are also joining, because such activity as mining now provides a level of income which can be compared to Ethereum/ZCASH and potential rate growth predicts huge profit. Huge bitcoin owners will also join, because their ownership over 10-100k gains tangible value.

Step 3.

Rate grows up to a couple hundreds of dollars per new bitcoin. “Altcoin” developers are joining - a lot of them couldn’t notice how promising was the old bitcoin, and as a consequence - they left the project. Huge Bitcoin owners, such as Winklewoss brothers become more and more interested in it. Mining activity is also profitable and leads to even bigger exchange rate for new coins in the future.

In my opinion, “Forkcoin” capitalisation will be equal to an old coin in about 2-3 years.


Return free network transactions!

Due to our calculations, which will be published later, bitcoin is being on the increase and a certain part of transactions will be included into blocks without any commissions. Even though, we’ll need fee for the major part of the transactions in order to have “spam” protection.


In case you are...

Developer. ​ You have an opportunity to have a direct influence on future bitcoins technical realization.

Investor. ​ On initial stages, “Forkcoin” would be drastically undervalued. As for the future - the new bitcoin would push the existing bitcoin. There are two options. First, is to buy bitcoin now and after the “fork based activity”​ ​ total evaluation of all forks will exceed current evaluation. Second option is to buy only “fork-coins” while they are cheap, and observe how they develop.

Miner. ​ Mining activity would be available on affordable equipment, such as graphics cards and miner can actually influence on various key-decisions through “forks” development.


Feel free to:

    Leave your comment below.
    Support the initiative by donating here: ​ 14XVzyqpKqvELQAwDrhSmhMBf3GCfQdS7Y
    Share this initiative with everyone, who cares about bitcoin
    Take part into software development for a new “Forkcoin”

Please visit our page at bitcoingpu.org

3  Bitcoin / Project Development / Notification bot for Telegram on: May 26, 2016, 02:42:03 PM
Let me share info about quite useful bot for telegram. It will notify about any new incoming transaction to bitcoin address after 1 confirmation.
Just enter address (with label) and it will start work.
https://telegram.me/cryptoNoticeBot
4  Local / Работа / В крупный датацентр on: May 07, 2016, 12:26:42 PM
Рабочие, инженеры и менеджеры в крупный датацентр.
В связи постоянным расширением необходимы сотрудники со следующими навыками:
- Монтажники
- Монтажники-электрики
- Системные администраторы linux
- Инженер по ремонту сложной РЭА (вычислительной)
- Разработчики ПО.

Датацентр находится на юге России. Для некоторых вакансий есть возможность работать удалённо (ремонт, системное администрирование). На постоянную работу или подработку. Все условия работы обсуждаются при собеседовании.
Если заинтересовало, присылайте резюме в личку.
5  Bitcoin / Hardware / Low power chips WANTED!!! 0.3 W/Ghs or around. Ideal miner design for exchange on: August 07, 2014, 12:24:34 PM
As most of you understand, only low power chips will work this winter and only those who have such chips will do profits in near future.

I would like offer a best ever miner design in exchange for such chip. What I mean of 'ideal miner'. Manufacturing costs for miner will be only around 1/5 of overall price. 4/5 of price will be net cost of chips.

Miner will run at high voltage with great efficiency ~95%.

Miner can work with nearly any chips, but I'm searching for best chip ever.

I have prototypes for different current chip manufacturers, so I can provide proof if needed. Also I have a farm for personal use that employ such technology.

PM me if you have great chips to offer, only with working samples.
6  Bitcoin / Hardware / ASIC of next year on: June 07, 2013, 10:05:44 PM
I made some calculations based on bitfuy's anounced asics.

1. One core contains 55 000 transistors. Overally 8 cores per chip.
2. 5Ghases/s means 625 Mhashes per core.
3. Therefore his chip makes 1 hash per one tick (Hz) at 625Mhz.
---
4. Modern (like Intel) chip contains >50 mln transistors.  They run at around 2GHz.
5. If such chip have special architecture, it would have about 1000 cores and would make around 2Thashes/s.
6. This is theoretical maximum for modern technology. There will be no breakthrough in mining since that.

There will be no breakthrough in mining since that!
I expect to see such chips next summer. And I'd make preorder for them around 1000-5000 pieces.
Is here any person or company who would make such chips true?
7  Local / Новички / Как устроен bitcoin? on: August 01, 2011, 08:53:09 PM
Мне хочеться написать понятную статью на русском о внутреннем устройстве bitcoin.
Какие аспекты работы отразить в ней в первую очередь?
8  Bitcoin / Mining / Short monitoring script for pool on: June 25, 2011, 12:52:22 AM
I wrote very short monitoring script that will send email (SMS in my case), if hash rate is lower than threshold. I run it every 10 minutes using cron:

/etc/crontab:
*/10 *  * * *   user   /home/user/guild.pl

It has been written for btcguild.com, but can be changed easily to other pools.

Maybe this is exactly what you are looking for.

It has following dependencies:
#sudo apt-get install libjson-perl sendemail


Here it is:
Code:
#!/usr/bin/perl
# This program is free software. It comes without any warranty, to
# the extent permitted by applicable law. You can redistribute it
# and/or modify it under the terms of the Do What The Fuck You Want
# To Public License, Version 2, as published by Sam Hocevar. See
# http://sam.zoy.org/wtfpl/COPYING for more details.

# sudo aptitude install libjson-perl sendemail

use strict;
use Data::Dumper;
use JSON;

my $request = 'http://www.btcguild.com/api.php?api_key=xxxxxxxxxxxxxx';
my $email   = 'legkoXXX@mailsms.mobicomk.ru';
my $from_email = 'XXXXXXXX@mm.st';
my $smtp_server = 'smtp.fastmail.fm';
my $smtp_user = 'XXXXXX@fastmail.fm';
my $smtp_pass = 'XXXXXXXX';
my $sendemail = "sendemail -f $from_email -t $email -s $smtp_server -xu $smtp_user -o message-format=raw -xp $smtp_pass -m";
my $worker_prefix = 'xxx';
my $filename = '/tmp/.guild_timeouts';
my $dead_thres = 150.0;

my $h_timeout = {};

sub main {
my @lines = ();

read_timeouts();

sysexec('localhost', "wget --output-document=- $request 2>/dev/null", \@lines);
return 1 if ($lines[0] =~ /Failed to connect to/);
my $json = JSON->new->allow_nonref;
my $guild = $json->decode($lines[0]);
print_out("\$guild: $guild");

my $workers = $guild->{'workers'};
my $total = 0.0;
my @dead;
my @choped_dead;
for my $name (sort keys (%$workers)) {
my $worker_name = $workers->{$name}->{worker_name};
my $hash_rate   = $workers->{$name}->{hash_rate};
print "$workers->{$name}->{worker_name}: $workers->{$name}->{hash_rate}\n";
if ($hash_rate < $dead_thres) {
push (@dead, $worker_name);
} else {
update_flag($worker_name, 1);
}
$total += $hash_rate;
}
print "Total: $total\n";

my $must_send = 0;
for my $name (@dead) {
my $choped = $name; $choped =~ s/$worker_prefix//g;
push @choped_dead, $choped;
if (down_flag($name)) {
$must_send = 1;
update_flag($name, 0);
}
}
if ($must_send) {
@lines = ();
print_log("Will send: @dead");
sysexec('localhost', $sendemail . " '@choped_dead'", \@lines);
}
write_timeouts();
print "\n";
}

sub update_flag {
my $worker = shift;
my $flag = shift;

$h_timeout->{$worker} = $flag;
}

sub down_flag {
my $worker = shift;

my $t = exists $h_timeout->{$worker} ? $h_timeout->{$worker} : 1;
return $t;
}

sub read_timeouts {
my $f;
local $/=undef;
open($f, '<', $filename) or return;
my $txt = <$f>;
eval $txt;
close $f;
}

sub write_timeouts {
my $f;
open($f, '>', $filename) or return;
my $txt = Data::Dumper->Dump([$h_timeout], ['$h_timeout']);
print $f $txt;
close $f;
}

my $local_hostname = 'localhost';
sub sysexec {
my ($host, $cmd, $lines) = @_;
my $aaa;
my $rc = 1;
local *KID;

return 1 if (!defined $host || $host eq '');
if ($host ne $local_hostname) {
$cmd = "ssh -o PreferredAuthentications=publickey $host -t '$cmd' 2>/dev/null";
}
my $pid = open(KID, "$cmd |");
if ($pid) { # parent
while (defined($aaa = <KID>)) {
push(@$lines, $aaa);
}
close(KID);
$rc = ($?>> 8);
} else {
print_log("FATAL: Could not execute command '$cmd'");
return 1;
}
return $rc;
}

sub print_log {
my ($txt) = @_;
print $txt . "\n";
}

&main();

1;
9  Bitcoin / Project Development / Bounty 20 BTC: Wi-Fi Hotspot, enabled by bitcoin on: May 11, 2011, 10:45:19 PM
I would like have hotspot based on some popular WiFi router, like Linksys or Ubiquiti.
Person pay with BTC and get access to internet.

- Better if hotspot will be self sufficient. Some hardware, like Dlink DIR-320 has USB port. It can be used for USB flashdrive as storage of blocks.

- Better if it will have options, like counting traffic or time, several bandwidth throttling degrees, depending on price.

- Better if hotspot will have 2 SSIDs - one private and one public.

How do you think to start implementing this?

My bounty is small, but I think someone on this forum would need the same and also pay for developer.
10  Local / Трейдеры / btcex.com, вывод средств on: May 08, 2011, 08:54:19 AM
1. В начале btcex жаловался что народ лишь пробует биржу и не переводит реальных сумм. Да, это так и было. И правильно люди делали что не доверяли!!!
2. Потом без предупреждения, биржа была закрыта на одну неделю (1 мая). Все средства были подвешены в неизвестном состоянии.
3. Сейчас сайт биржи доступен, но она совершенно не работает. Если кто-то захочет купить монет, то вывести их невозможно!!!
Так же и обратное - если вы хотите продать монеты - то кто их у Вас купит, если монеты вывести невозможноHuh
4. Ну и самое сладкое - btcex теперь хочет брать у людей BTC в долг под 8% годовых (http://bitcointalk.org/index.php?topic=7294.0). Видимо основной запас btcex проиграл в казино. Это сильно попахивает на пирамиду. Кстати, лохотрон http://probiwon.com/ вроде тоже их сайт.

У меня подвисл около 155 в BTC у них (я не проводил обмена) - я не могу вывести больше недели. Техподдержка дает неадекватные ответы и слегка хамит.
Трижды подумайте стоит ли связываться с btcex.com!
Сам я пользуюсь IRC #bitcoin-otc, там мой ник anatoly_l если что
11  Local / Обменники / Продам 400 монет по курсу MtGox * ЦБ, пока btcex лежит on: May 02, 2011, 04:00:49 PM
Мой телефон +X XXX 33 "три двойки" XX.
Skype - legkodymov.
Или личное письмо на форуме.
Желательно через банковский перевод - или как договоримся
12  Bitcoin / Bitcoin Technical Support / I've lost 50.04 coins, and recovered them. How could it be possible? on: March 12, 2011, 06:30:57 AM
I've had disk crash recently, which caused wallet loss. I was 50.04 coins on it

But I have backup copy of it with zero balance, so I restored my wallet.

To my supprise 50.04 coins appeared again. Is this really possible? Did bitcoin downloaded my coins from network?

Thank you!
Anatoly.
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