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1  Local / Biete / [VERKAUFT] Komplettset Core i7-860+Motherboard+8GB RAM+OC Kühler on: March 30, 2015, 03:54:14 PM
Zu verkaufen ist ein

  • Core i7-860 @ 2.93GHz - Quadcore CPU mit HyperThreading
  • 8 GB DDR3-RAM (Corsair XMS 3)
  • Motherboard ist ein Gigabyte GA-P55M-UD2
  • Kühler ist ein Alpenföhn Brocken



Preisvorstellung 125€ in BTC, inkl. Versand.

VERKAUFT!

Gruß,
Sebastian
2  Local / Biete / Biete Guthaben für Captcha-Solving bei 9kw.eu on: March 30, 2015, 03:19:59 PM
Ich habe mir ein größeres Paket bei 9kw.eu gekauft und stelle erst jetzt fest, dass es etwas übertrieben war. Nach derzeitigem Stand komme ich damit noch ca 12 Jahre aus. Wer weiß ob es bis dahin noch Captchas gibt Smiley

Ich möchte daher einen Teil meines Guthabens weiter verkaufen.

Zum Verkauf stehen 950.000 Guthabenpunkte, dies entspricht ~ 95.000 gelösten Captchas. Diese lassen sich flexibel einsetzen, bspw. im JDownloader, so dass diese nicht mehr selbst eingegeben werden müssen (oder wenn man abwesend ist). Es ist damit auch möglich Bitcoin-Faucets automatisch abzugrasen...  Tongue

Ich verkaufe in Paketen ab 50.000 Punkten (= 5000 Captchas), Preisvorstellung 5 Euro in BTC. Das sind 25% mehr Punkte als beim direkten Erwerb über die Seite. Bei Interesse bitte PM.
3  Local / Biete / Softwareentwicklung / Trade-BOT / Will code for BTC :) on: November 25, 2014, 06:28:31 PM
Hallo zusammen,

da mein letztes Angebot hier im Forum nach einigen Startschwierigkeiten recht gut angenommen wurde und ich mittelfristig wieder ausreichend Zeit hab ein bisschen was nebenbei zu programmieren, möchte ich meine Dienste gerne hier anbieten.

Entwickeln kann ich in den Bereichen Java, NodeJS, PHP, Datenbanken (MySQL, Postgresql, Sqlite, etc) und Windows Phone. Einfache Webfrontends mit HTML/CSS/JavaScript sind auch drin, ebenso wie allerlei sonstiger Kleinkram im Computer-Bereich (Windows / (Debian-)Linux).

Nachdem mein PHP-Arbitrage-Bot größtenteils wartungsfrei läuft beschäftige ich mich zur Zeit hiermit:





DOG soll künftig verschiedene Trading-Strategien automatisch ausführen können. Bis jetzt ist das "Ping-Pong"-Modul fast fertig. Im Prinzip basiert dieses darauf den Spread auszunutzen und damit einen Trade-Gewinn einzufahren. Details folgen bei Interesse. Das soll erstmal nur als Beispiel dienen was möglich ist Smiley

Bei Fragen bitte PM oder direkt hier im Thread, damit alle was davon haben.

Viele Grüße,
Sebastian
4  Alternate cryptocurrencies / Marketplace (Altcoins) / [BOT] Altcoin Arbitrage Trader [sold out] on: August 12, 2014, 09:38:08 AM
Hi everyone,

I'm offering a bot to earn some BTC through arbitrage trading between Poloniex and Cryptsy. I've been developing and using this bot since May and I got some decent profits from it.

The bot checks for altcoins, which are traded on both exchanges and compares their prices. If the difference is big enough to earn at least some satoshis (after deducting transfer fees), it enters the trade.

Wow. I could code this within two hours by myself...
Yeah, right. No big deal until here. The difference of this bot compared to a selfmade 2-hour bot is its ability to manage the wallets. This bot is designed to minimize the manual effort you have to invest.

The bot records its activities and exchange rates in a database and uses this information to reinvest a portion of its profits into the most profitable (in terms of arbitragable) altcoin. Additionally, the amount of held altcoins is calculated based on their exchange rate. This allows the bot to profit from hyped (PnD) coins. Managing the flow of BTC and altcoins between the two exchanges (And the profits to a configurable wallet) is an additional feature.

Can I see it in action?
I moved the bot to a Amazon EC2 micro-instance and started it with a fresh account and a fresh balance. You can see its trading activity here: http://54.75.161.34/

IMPORTANT: Please don't keep the page open for too long. As it is an EC2 micro-instance the database fails when more than 10 people are watching. Thanks.

Please note: I started with a fresh database and fresh accounts. I seeded the wallets with 0.1 BTC each (which should arrive within the next hour). The bot needs to learn which altcoins are profitable before it starts to invest in them. It should take around 48h before first profits can be seen.

(All BTC above 0.5 BTC are sent to the "profit wallet" every 6 hours. So don't be confused that the balance doesn't raise above this bar.)


So why are you selling this bot, instead of getting rich from it?
The main reason is the rate-limit for the requests to the exchanges. Due to the amount of traded altcoins and the required pause between requests (to prevent getting blacklisted) it takes several minutes to check every pair. This causes missed opportunities, as these usually only exist for a few seconds. To fix that I would need more instances of the bot on different machines with different IPs, different accounts and API keys. I tried that with three accounts, but it took a reasonable amount of time to manage everything. The earnings were higher but I decided it wasn't worth the time and I began to get confused with the different accounts, 2FA and coin-addresses. Additionally, I didn't want to get banned from the exchanges by using multiple accounts.

Instead I started to change the code in a way that other people could use it (By adding configuration files and stuff).


So it makes more work than it earns?
If you pay someone to manage and maintain the bot - yeah. If you manage it yourself in your free time - no. Typically involved work is to regulary check if there are disappeared altcoin-balances or stuck deposits/withdrawals (Unfortunately I had this happen on both exchanges more than once and a support ticket had to be opened to fix it). You need to enter transfer fees for new traded altcoins into the config file. Cryptsy requires you to approve new withdrawal-addresses with your 2FA. And some more administrative stuff (database backup, etc.).


What is required to operate the bot?
You need a computer that is able to execute PHP-scripts and to host a MySQL database. This could be your home computer, a Raspberry Pi or a VPS. I use a Amazon EC2 micro-instance. For the Web UI you need a webserver (Apache, nginx, ...). I will provide setup instructions and all required configuration files. I will also provide basic support if something doesn't work.


So when 20 people operate this bot the opportunities to do an arbitrage trade are nearly nonexistent?
Correct. However, I will only sell up to 8 licenses for this bot. As I want to continue operating this bot for myself (to generate a steady income stream), I have no interest to destroy the arbitrage opportunities for myself.


How can I am sure that this bot doesn't steal my coins?
It's PHP. You can check for yourself if the code does crazy stuff. Additionally, to prevent interfering with you conventional trading, you should start with a new and fresh account on each exchange and only transfer small amounts of BTC in.


Will this bot make me rich?
No.


Will this bot get me a steady income?
At least for some time. There can always happen unforseeable things in the future, which may prevent the bot from working. The exchange could get hacked. The exchange could close its doors. Someone other builds a better bot and catches all the opportunities.


How much can I expect to earn?
Just to make this absolutely clear: I cannot guarantee that you will earn anything with this bot. For me it generates a steady income (Look at the provided link above for a running live-bot). However, trades may also fail and it cannot be guaranteed that you make a profit every day. As your copy of the bot sees the orderbooks at different times than mine, you cannot expect to see the same results. You may perform better or worse.


How much does it cost?
I think 0.5 BTC is a fair price as there were a few dozen hours of work put into it. This includes the bot with configuration files and setup instructions. Future updates are also included (Exchange API changes or new features/improvements). If you are interested in purchasing the bot, please send me a PM with a (realistic) offer. If you want an escrow, please provide one.


Can I get it cheaper and give you a part of the profit?
The problem is that I cannot check how much profit you made without having access to your exchange account. That would be the only reliable source (as the database-backend with the trade records could be manipulated). Maybe some day in the future I may implement something to provide that way of payment, but not today.


What do all these boxes on the Web UI mean?
The big center box contains the 48h history of the BTC balance in both wallets. On the right side are the wallets at the exchanges (P for Poloniex, C for Cryptsy). The numbers in parantheses are the number of times this coin has been traded, the number of times there was a arbitrage opportunity (which may or may not have been filled due to missing funds, etc) and the amount of coins the bot wants to buy or sell.

The four boxes in the next line contain a list of the recent trades, wallet management activity (Buying / Selling altcoins), coin transfers between wallets and a countdown to some internal events: consolidate (Even out the wallets and sell unneeded coins), take-profit (Move profits to private wallet), balancing (even out the BTC wallet) and restock (Buy new coins).

The last box contains the log messages from the last 30s.

Regards,
Sebastian
5  Local / Biete / BIETE: Altcoin Arbitrage Bot [verkauft] on: August 09, 2014, 09:17:41 AM
Hallo zusammen,

ich habe bereits einen Thread im englischen Teil des Forums erstellt. Leider verschwindet mein Angebot dort ziemlich schnell auf Seite 2, daher möchte ich den Bot gerne auch hier anbieten:

Ich biete einen Bot an, der Arbitrage-Trades zwischen Poloniex und Cryptsy ausführt. Der Bot wird seit Mai von mir entwickelt und generiert ein gewisses BTC "Grundeinkommen".

Der Bot prüft alle Altcoins, die an beiden Exchanges gehandelt werden und vergleicht deren Preise. Wenn der Unterschied so groß ist, dass nach Abzug der Transfer-Gebühren ein Profit übrig bleibt, dann wird der Trade ausgeführt.

Sowas lässt sich doch in zwei Stunden programmieren?

Korrekt. Die Feinheiten beginnen bei dem Drumherum. Der Bot reduziert den manuellen Aufwand soweit wie möglich, indem er die Wallets bei beiden Exchanges größtenteils selbst verwaltet. Kurse und Arbitrage-Gelegenheiten werden in einer Datenbank verzeichnet und basierend darauf werden Altcoins zugekauft oder abgestoßen. Durch die Einbeziehung der Kurse in die Berechnung, wie viele Coins gehalten werden sollen, sind gehypte Coins eine weitere kleine Nebeneinnahme (Portfolio Balancing).

Der Bot verschiebt automatisch Coins zwischen beiden Exchanges, um stets handlungsfähig zu sein, wenn sich eine Gelegenheit ergibt.

Kann man sich das Ganze irgendwo anschauen?

Ich habe den Bot für dieses Angebot in eine Amazon EC2 Micro-Instanz geschoben, so dass jeder auf das Webinterface zugreifen kann. Zu sehen ist das unter http://54.75.161.34/

Hinweis: Ich habe am 05.08.2014 mit zwei frischen Accounts bei den Exchanges und einer leeren Datenbank angefangen. Die Accounts wurden mit je 0.1 BTC aufgefüllt und dem Bot wurde 0.1 BTC als "Investitionskapital" zugewiesen, so dass er davon Altcoins kaufen kann. Diese Initialphase dauert rund 48h. Momentan (Stand 09.08.2014, 10 Uhr) hat er also 0.03 BTC verdient.

Warum wird der Bot verkauft, wenn er doch so gut funktioniert?

Der Hauptgrund sind die Beschränkungen der Exchanges. Ich darf nur alle x Sekunden eine Anfrage stellen. Bei der Menge an Altcoins dauert es daher Minuten, bis alle Orderbücher abgefragt sind. Dabei gehen natürlich einige Gelegenheiten flöten, da diese oft nur für einige Sekunden existieren. Um also mehr BTC zu verdienen müsste ich mehrere Accounts mit neuen API Keys bei den Exchanges haben, mit verschiedenen IPs arbeiten und mehrere Instanzen des Bots betreiben.

Ich habe insgesamt drei Instanzen des Bots betrieben (Und entsprechend etwa das dreifache Einkommen gehabt), allerdings wird es sehr schnell verwirrend und man verliert den Überblick zwischen den Accounts, Wallets, 2FA, etc.

Ein weiterer Hauptgrund ist, dass ich nicht riskieren will einen Account gesperrt zu bekommen. Ich weiß nicht wie gut die Exchanges es finden wenn man mehrere Accounts hat...

Daher hab ich mich entschieden, den Bot so umzubauen, dass andere Anwender damit klarkommen (Konfigurationsdatei, etc).


Der Bot macht also viel Arbeit?

Kommt drauf an. Wenn die Exchanges keine Probleme machen beschränkt sich der administrative Aufwand auf das Raussuchen von Withdrawal-Fees und Eintragen der Deposit-Addressen neuer Altcoins bei Cryptsy. Außerdem müssen Altcoins die delisted werden händisch in der Konfiguration des Bots deaktiviert und anschließend liquidiert werden.

Manchmal kommt es jedoch vor dass bei einem Exchange ein Deposit oder Withdrawal hakt, oder ein Guthaben nicht korrekt ist (Bereits bei beiden Exchanges vorgekommen). Dann muss ein Support-Ticket eröffnet werden.

Was brauche ich um den Bot auszuführen?

Einen Computer/VPS/EC2-Instanz/Raspberry Pi/etc. der PHP-Skripte ausführen und eine MySQL-Datenbank hosten kann. Für das Webinterface braucht es einen beliebigen Webserver (Apache, nginx, ...).

Und wenn 20 Leute den Bot ausführen macht keiner mehr Profite?

Ich teile mir momentan den Markt mit vielen anderen, die ebenfalls Arbitrage-Trading machen. Trotzdem gibt es genügend Handels-Gelegenheiten. Da ich jedoch meinen Bot selbst laufen lassen möchte und nicht riskieren will, dass die Gelegenheiten verschwinden, beschränke ich die zu verkaufende Anzahl an Lizenzen auf acht.

Woher weiß ich dass der Bot mir keine Coins stiehlt?

Der Bot ist in PHP geschrieben. Du kannst im Code nachschauen an welchen Stellen Abhebungen erfolgen und wie die Adressen dafür bezogen werden.

Macht der Bot mich reich? Oder gibt es zumindest ein regelmäßiges Einkommen?

Reich macht der Bot sicherlich nicht (Es sei denn natürlich der BTC-Kurs explodiert). Es gibt aber zumindest für die nähere Zukunft ein regelmäßiges Einkommen. Langfristig ist es natürlich schwer vorherzusagen, da immer etwas schief gehen kann. Exchanges können gehackt / geschlossen werden. Jemand anderes kann einen besseren Bot schreiben, der keine Trading-gelegenheiten übrig lässt, etc.

Ich kann ebenfalls nicht garantieren dass jeder Trade gut geht. Ich hatte bereits Fälle in den ein schief gegangener Trade den kompletten Tagesprofit aufgefressen hat. Selten, aber kommt vor.

Was kostet der Bot?

Ich denke 0.5 BTC ist ein fairer Preis. Es sind dutzende Stunden Arbeit reingeflossen und künftige Anpassungen sind ebenfalls enthalten (API Anpassung, Bugfixes, neue Funktionen, ...).

Bei Interesse schickt mir bitte eine PM mit eurem (realistischen) Angebot. Escrow ist ok.

Was wird im Webinterface alles dargestellt?

Der Graph in der Mitte zeigt die BTC-Wallet beider exchanges im Verlauf der letzten 48h an. Auf der rechten Seite sind die Wallets beider Exchanges zu sehen (P = Poloniex, C = Cryptsy). Die Zahlen in Klammern geben die Anzahl der ausgeführten, sowie die Anzahl an potentiellen Trades an. Die letzte Zahl gibt das Delta an, wie der Bot den Kontostand ändern möchte.

Die vier Boxen in der nächsten Zeile zeigen die letzten Trades, das Wallet-Management (Kauf/Verkauf von Altcoins), Transfers zwischen den Exchanges und Statusinformationen an. Bei den Statusinformationen erscheint die Gesamt-Anzahl an Trades, sowie die "Investmentkasse" des Bots. Die Countdowns geben die Restdauer an, bis gewisse interne Events ausgeführt werden: consolidate (Ausgleich von Altcoins zwischen Exchanges und verkauf überschüssiger Altcoins), take-profit (Profite auf die Gewinn-Wallet überweisen), balancing (BTC wallet ausgleichen) and restock (Neue Altcoins kaufen).

Die unterste Box zeigt die Aktivität des Bots der letzten 30 Sekunden an.


Noch Fragen?

Viele Grüße,
Sebastian
6  Economy / Digital goods / [WTS] Altcoin Arbitrage Bot [1 license available] on: August 05, 2014, 04:00:34 PM
Hi everyone,

I'm offering a bot to earn some BTC through arbitrage trading between Poloniex and Cryptsy. I've been developing and using this bot since May and I got some decent profits from it.

The bot checks for altcoins, which are traded on both exchanges and compares their prices. If the difference is big enough to earn at least some satoshis (after deducting transfer fees), it enters the trade.

Wow. I could code this within two hours by myself...
Yeah, right. No big deal until here. The difference of this bot compared to a selfmade 2-hour bot is its ability to manage the wallets. This bot is designed to minimize the manual effort you have to invest.

The bot records its activities and exchange rates in a database and uses this information to reinvest a portion of its profits into the most profitable (in terms of arbitragable) altcoin. Additionally, the amount of held altcoins is calculated based on their exchange rate. This allows the bot to profit from hyped (PnD) coins. Managing the flow of BTC and altcoins between the two exchanges (And the profits to a configurable wallet) is an additional feature.

Can I see it in action?
I moved the bot to a Amazon EC2 micro-instance and started it with a fresh account and a fresh balance. You can see its trading activity here: http://54.75.161.34/

Please note: I started with a fresh database and fresh accounts. I seeded the wallets with 0.1 BTC each (which should arrive within the next hour). The bot needs to learn which altcoins are profitable before it starts to invest in them. It should take around 48h before first profits can be seen.

(All BTC above 0.5 BTC are sent to the "profit wallet" every 6 hours. So don't be confused that the balance doesn't raise above this bar.)


So why are you selling this bot, instead of getting rich from it?
The main reason is the rate-limit for the requests to the exchanges. Due to the amount of traded altcoins and the required pause between requests (to prevent getting blacklisted) it takes several minutes to check every pair. This causes missed opportunities, as these usually only exist for a few seconds. To fix that I would need more instances of the bot on different machines with different IPs, different accounts and API keys. I tried that with three accounts, but it took a reasonable amount of time to manage everything. The earnings were higher but I decided it wasn't worth the time and I began to get confused with the different accounts, 2FA and coin-addresses. Additionally, I didn't want to get banned from the exchanges by using multiple accounts.

Instead I started to change the code in a way that other people could use it (By adding configuration files and stuff).


So it makes more work than it earns?
If you pay someone to manage and maintain the bot - yeah. If you manage it yourself in your free time - no. Typically involved work is to regulary check if there are disappeared altcoin-balances or stuck deposits/withdrawals (Unfortunately I had this happen on both exchanges more than once and a support ticket had to be opened to fix it). You need to enter transfer fees for new traded altcoins into the config file. Cryptsy requires you to approve new withdrawal-addresses with your 2FA. And some more administrative stuff (database backup, etc.).


What is required to operate the bot?
You need a computer that is able to execute PHP-scripts and to host a MySQL database. This could be your home computer, a Raspberry Pi or a VPS. I use a Amazon EC2 micro-instance. For the Web UI you need a webserver (Apache, nginx, ...). I will provide setup instructions and all required configuration files. I will also provide basic support if something doesn't work.


So when 20 people operate this bot the opportunities to do an arbitrage trade are nearly nonexistent?
Correct. However, I will only sell up to 8 licenses for this bot. As I want to continue operating this bot for myself (to generate a steady income stream), I have no interest to destroy the arbitrage opportunities for myself.


How can I am sure that this bot doesn't steal my coins?
It's PHP. You can check for yourself if the code does crazy stuff. Additionally, to prevent interfering with you conventional trading, you should start with a new and fresh account on each exchange and only transfer small amounts of BTC in.


Will this bot make me rich?
No.


Will this bot get me a steady income?
At least for some time. There can always happen unforseeable things in the future, which may prevent the bot from working. The exchange could get hacked. The exchange could close its doors. Someone other builds a better bot and catches all the opportunities.


How much can I expect to earn?
Just to make this absolutely clear: I cannot guarantee that you will earn anything with this bot. For me it generates a steady income (Look at the provided link above for a running live-bot). However, trades may also fail and it cannot be guaranteed that you make a profit every day. As your copy of the bot sees the orderbooks at different times than mine, you cannot expect to see the same results. You may perform better or worse.


How much does it cost?
I think 0.5 BTC is a fair price as there were a few dozen hours of work put into it. This includes the bot with configuration files and setup instructions. Future updates are also included (Exchange API changes or new features/improvements). If you are interested in purchasing the bot, please send me a PM with a (realistic) offer. If you want an escrow, please provide one.


Can I get it cheaper and give you a part of the profit?
The problem is that I cannot check how much profit you made without having access to your exchange account. That would be the only reliable source (as the database-backend with the trade records could be manipulated). Maybe some day in the future I may implement something to provide that way of payment, but not today.


What do all these boxes on the Web UI mean?
The big center box contains the 48h history of the BTC balance in both wallets. On the right side are the wallets at the exchanges (P for Poloniex, C for Cryptsy). The numbers in parantheses are the number of times this coin has been traded, the number of times there was a arbitrage opportunity (which may or may not have been filled due to missing funds, etc) and the amount of coins the bot wants to buy or sell.

The four boxes in the next line contain a list of the recent trades, wallet management activity (Buying / Selling altcoins), coin transfers between wallets and a countdown to some internal events: consolidate (Even out the wallets and sell unneeded coins), take-profit (Move profits to private wallet), balancing (even out the BTC wallet) and restock (Buy new coins).

The last box contains the log messages from the last 30s.

Any more questions?

Regards,
Sebastian
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