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1  Economy / Gambling discussion / It's a good idea to bet against Clinton to become president on: September 21, 2016, 07:44:26 PM
Near the closure of the elections, the chances between the two candidates becomes 50/50. So odds for Clinton will become around 2.0. Currently her odds are between 1.4/1.5. Therefore, it's a good idea to bet against Clinton to become president. You can sell your bet near the elections at 2.0.
2  Economy / Digital goods / looking for someone to buy activation code with paypal ($40), I'll send $45 btc on: August 07, 2016, 09:03:37 AM
I need someone to buy a software activation code for me with paypal. It costs $39.95. I'll pay you $45 in btc.
3  Economy / Digital goods / Earn 10% if you know a way / help me to get $50 in my betfair account on: June 18, 2016, 02:31:52 PM

I play on betfair for fun. Last november I deposited eur 50 in betfair and it's now almost gone. I no longer have a credit card, so does anyone know a way to deposit more? I'll pay you 10%, I was thinking about depositing eur 50 (>$50). I have btc.
4  Economy / Digital goods / Looking for someone with a paypal account to buy and forward me a $15.95 mp3 on: June 10, 2016, 07:28:45 PM
I want to buy this for my girlfriend:
But I don't have a credit card or paypal. I can pay you $15.95 in btc + your profit (name your price). So you buy it at the website and send me the download link and I pay you with btc.
5  Alternate cryptocurrencies / Altcoin Discussion / Newby thinks Ethereum doesn't work on: January 24, 2016, 07:47:14 PM
After learning some things about ethereum, I've formed an initial opinion about it. You might insert "(correct me if I'm wrong)" after each word in the next argument.

In a Dutch beginners bitcoin meeting, we had an idea that later appeared to not work out, but it serves very well as background example.

The idea was to create a bitcoin transaction, whose outputs can be spent by solving a computational problem and not by knowing a private key. The solution of many NP-Complete in practice can be checked in linear time and in fact we managed to create such a bitcoin transaction, where the bitcoins could be claimed by solving a SAT-instance.

Two remarks were made by people with more experience:
1. It doesn't work, because miners can "steal" the solution by inspecting it and changing the address the coins will be sent to when mining a block.
2. We should look into Ethereum.

As I see it, the main plus of Ethereum above Bitcoin is to pay to perform computations. I think, however, there are some limitations to that. When reading, performing computations is a by-product of mining and validation. It cannot be used for intensive computations, as per
An attacker creates a very long infinite loop with the intent of forcing the miner to keep computing for such a long time that by the time computation finishes a few more blocks will have come out and it will not be possible for the miner to include the transaction to claim the fee. However, the attacker will be required to submit a value for STARTGAS limiting the number of computational steps that execution can take, so the miner will know ahead of time that the computation will take an excessively large number of steps.

I do believe that computing power can become the leading currency within 20 years. With this in mind, I'm very interested in Ethereum and I'm wondering if it can become the computing platform of the world.

Also, the article mentions that for validation, each ledger needs to redo some of the computations. It doesn't need to redo *all* of the computations that were ever done for ethereum, as the transactions are stored in a tree. However, I think it's still infeasible for any ledger to do log(n) computations, where n is the total number of computations done in the world.

Next, Ethereum may use less memory than the bitcoin blockchain even though Ethereum stores variables, but I still believe that storing a portion of the intermediate values forever will not work if you want to be a computing platform (because of memory explosion).

Last but not least, in case the gas value of some computation still has monetary relevance, it seems to me that such a solution can still be stolen from one miner by another miner.

My questions:
1. Where do I go wrong with my observations?
2. Respecting (1), do I still have a point?
3. May it be possible to develop a crypto where you can claim coins by solving a generic problem description (as we tried in the beginners bitcoin meeting), as opposed to ethereum (where you just need to follow the steps defined by questioner)?
4. Has anybody yet done significant computations in the Ethereum blockchain that helped him and he couldn't do on his own computer?
5. If I'm mistaken and Ethereum is not meant for solving compute-intensive problems, should we then start a coin that is?
6  Economy / Auctions / 1,500,000 kshares, no reserve (Kinetics) on: September 25, 2015, 12:08:55 AM
I need to get rid of 1,500,000 kshares (kinetics) at any price. I strongly advice you to do some research on the CEO (perhaps connect to him on facebook: Morgan Rockwell (Metaballo)) before placing any offer. I own these shares on At the end of the auction, I'll decide if I send the shares first, or if we're going to use an escrow.

Starting bid: 0 btc.
increment: 1 satoshi or more
your bid is for the full lot (not per share).
auction ends: 48 hours after the last bid.
7  Other / Meta / Are Hero accounts worthless? on: July 05, 2015, 09:09:34 PM
I've seen some discussions of users selling or buying bitcointalk accounts. Another day I saw a discussion between two hero members praising each other and saying that you should really use the other one's (paid) services. Because of the trading of accounts, I don't trust the status of any account anymore.
8  Bitcoin / Project Development / introducing Cryptox, a Dutch crypto exchange on: July 04, 2015, 08:16:28 PM
Hi all,

I'm building a centralized crypto exchange, a fork of peatio (my fork is at, no new commits yet). Peatio was developed by Chinese in Ruby on Rails and has all functionality that you expect from a crypto exchange. The code is also very neat. It uses CNY as fiat currency. fiat money transfers from and to peatio are very cumbersome. So I added euro and Ideal. Ideal is my "usp": it is the Dutch most populair method for instant online (fiat) payments (way more popular than creditcards). You can buy bitcoins with euro ( but there's no way yet to send euro's directly to a crypto echange, or at least not with ideal (afaik).

Peatio is suitable for many crypto's, though at this point probably not too many at the same time. I have no clue yet which crypto's I'm going to add.

There are two main issues:
1. I'd like to let people be able to automatically withdraw their EUR. Anyone have an idea? I'm looking for something like this, but then for the euro market. . The original Peatio only supports a manual process for withdrawal (and also for deposit).
2. How will I attract a marketmaker?

I could marketmake myself, but the software for that will take a long time to write.

Features I'd like to add soon besides the above are:
Branding (design) of frontpage.
Solve some security threaths.
Solve some bugs in Peatio (note that many issues on their github are actually support requests).

Once I get all of the above working I can put up a production site.

Long-term features include creditcard payments and anything that supports. Mollie also supports a decent bitcoin->euro conversion (but not the other way around). I also want to add Dutch translation and more altcoins. I need to do a legal check of the website. After that I'll try to attract a Chinese business partner to conquer China ;-).

More info and a demo url will follow.

This is my first contact with Ruby. The Ideal payment works but is not committed yet (some minor flaws still need to be solved). You will find that my code could be better, as I do most of the work in the Controller instead of the Model. The code changes are small though and can easily be refactored later when I understand the model.

Peatio is powerful software and works well for the Chinese market. I found that I have the expertise to make it suitable for the West with little effort, so that's why I'm doing it.
9  Economy / Auctions / domain name on: June 29, 2015, 07:00:08 PM
Description: domain name.
Starting bid: 2.5 btc
Buy it now: 6 btc
End date and time: 2015-07-06 11:59 AM CET (=GMT+2:00). Time of this post: 2015-06-29 09:00 PM CET.
Payment methods accepted: direct btc payment
Additional information:
Cryptox used to be one of the first cryptocurrency exchanges, hence the name was logically chosen. They went bankrupt years ago and I bought their domain name.
10  Economy / Trading Discussion / Kinetics shares on: June 24, 2015, 04:49:43 AM

Did anyone manage to claim their Kinetics shares ( I own 0.15% of the company but I heard nothing. No contact details on their website.
11  Bitcoin / Project Development / Let me program for FREE on your #bitcoin related project (2g2bt?) on: April 10, 2013, 02:10:55 PM

Recently I got fired by my boss. Not yet actually, because I'll get paid until the 30th of June but I'm not welcome anymore.

So I can do with my time whatever I want and I would like to spend it on bitcoins. I would like to hear about your projects. So will I work for free, really?

Well, I'd like a share of your future bitcoin returns. For the first couple of weeks I will work for free to prove myself, but then to continue I'd like a reward if it will all work out, in the form of a share in the project (/bitcoin returns). So basically I'm looking for a business partner in some bitcoin related project.

I'm open to anything, but I will be sceptic to any project as in "do I think it will succeed"?

What do I have to offer?

- expert in Java and PHP (7+ years experience in both).
- experience in a financial high frequency trading firm with currencies
- earns coins in daytrading
- mensa iq: 139
- Msc in computer science (Utrecht University, the Netherlands)

I'm looking for someone who preferrably already has a project running and is already earning some coins but not enough to pay for a(nother) programmer. Who will pull the project and will continue his project even if I fall away.
The project I'm looking for would be a bitcoin hedgefunds, a bitcoin exchange, maybe a bitcoin marketplace, or maybe something else.... with bitcoins.

The other day someone asked for help on bitcoinj on this forum. The point is that helping him would probably establish my name in the long term as a bitcoin core programmer; however I don't see how it's going to earn me coins directly.

Please ask for more info and/or tell about your project.
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