Namecoin <-> Bitcoin Exchange

[doublec]

I've started a Namecoin exchange where you can buy and sell Namecoins for Bitcoins: https://exchange.bitparking.com

It's pretty new, only a few days old, but has had a few trades put through it. I'd appreciate any feedback for features and reports for bugs.

[1714809937]

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[1714809937]

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[1714809937]

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[1714809937]

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[kiba]

Finally!

[interfect]

I might actually use namecoins now. How do I resolve them again?

EDIT: Maybe not. I tried to log in with my Google OpenID and got:

Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:185:40-185:76: Login failed: Signatures don't match

[doublec]

EDIT: Maybe not. I tried to log in with my Google OpenID and got:

Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:185:40-185:76: Login failed: Signatures don't match

I made a small change - can you try again and see if it works? Are you using the Google button or entering your openid identity directly?

[foo]

Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:289:20-293:86: Login with your identity provider failed: Discovery failed

[doublec]

Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:289:20-293:86: Login with your identity provider failed: Discovery failed

Are you using Verisign's service? I'm having issues getting that working. Hopefully in a day or two.

[foo]

Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:289:20-293:86: Login with your identity provider failed: Discovery failed

Are you using Verisign's service? I'm having issues getting that working. Hopefully in a day or two.

I'm using myOpenID through a delegation on my own web page.

[doublec]

I'm using myOpenID through a delegation on my own web page.

Ok, I'm using myOpenID as well but not using delegation. I'll test with that.

[shooter_mcgavin]

Everything went EXTREMELY smoothly for me. I signed up with my google ID without any issues and have made successful trades. Excellent work!

[darbsllim]

can someone tell me what the value in Namecoins is?

Brad

[shooter_mcgavin]

Namecoin is the currency used to perform maintenance & register domain names for .bit addresses. It's the only currency that the system accepts (intrinsically) and is mined in the same fashion that Bitcoins are mined.

[bitanarchy]

I tried to login with my myOpenId account "http://bitanarchy.myopenid.com".
I had to turn on accepting third party cookies, to get around a cookie error. After that, I got this:
Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:264:28-264:63: Username not found

[doublec]

I tried to login with my myOpenId account "http://bitanarchy.myopenid.com".
I had to turn on accepting third party cookies, to get around a cookie error. After that, I got this:
Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:264:28-264:63: Username not found

Can you try signing up again? The lack of accepting the cookie in the first place may have prevented it from going through. I don't see a record from that openid url.

[foo]

Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:289:20-293:86: Login with your identity provider failed: Discovery failed

Are you using Verisign's service? I'm having issues getting that working. Hopefully in a day or two.

I'm using myOpenID through a delegation on my own web page.

I gave up on waiting for this error to get fixed and created an account with my yahoo login. It worked yesterday, but today when I try to log in I get this, even if I remove all cookies:

Fatal error: /home/chris/src/ur/openid/src/ur/openidUser.ur:185:40-185:76: Login failed: Signatures don't match

Your site is good, but if your users can't log in it's useless. If OpenID isn't working for you, please just change to a simple username/password system.

[doublec]

Your site is good, but if your users can't log in it's useless. If OpenID isn't working for you, please just change to a simple username/password system.

The OpenID stuff is definitely a bit of a pain at the moment. I'm trying to track down the issues. Part of the motivation for writing the exchange was to stress test the implementation of the language/framework I used to build it. It's done a good job of that in parts. I've tweaked the OpenID a bit again and would be interested if anyone see's the 'Signature didn't match' again (may require deleting existing browser cookies for the exchange site).

[Sukrim]

Just to make sure if I got it correctly:
Difficulty in BTC and NMC is calculated exactly the same?

This means I can easily calculate how many NMC I would mint instead of BTC and using the conversion rate, if it would pay off...

[doublec]

Just to make sure if I got it correctly:
Difficulty in BTC and NMC is calculated exactly the same?

This means I can easily calculate how many NMC I would mint instead of BTC and using the conversion rate, if it would pay off...

Yes. So namecoin difficulty is currently 2815.22139486. Bitcoin is 434882.72174970. So based on diffculty 1 namecoin is worth 0.00647 bitcoins. Namecoins do have intrinsic value in that they can be used to purchase namecoin domains so that may affect the price somewhat. The high on the exchange is 0.009 and the low is 0.006 at the time of writing this.

[Sukrim]

Great, so selling at 0.008 BTC/NMC nets me a nice 23.5% increase in BTC income + helps the NMC network!

Maybe also have a look at http://bitcoincharts.com/about/exchanges/ to integrate in their charts - might give you quite a boost.

[marcus_of_augustus]

Namecoin is the currency used to perform maintenance & register domain names for .bit addresses. It's the only currency that the system accepts (intrinsically) and is mined in the same fashion that Bitcoins are mined.

Specifically, it is a decentralized DNS system that uses the same block chain technology as bitcoin but is running the namecoin blockchain.

More here https://dot-bit.org/Main_Page

[Xenland]

I think it would be pretty usefull to have an API not just for mining farmimplementation but for others uses

[Sukrim]

I'd still love to see a namecoin graph on http://bitcoincharts.com/markets/

http://bitcoincharts.com/about/exchanges/ for implementation details (you'd need to provide the stats from your page as JSON more or less, that's all)

[anthony_]

It would be awesome if this had a trading API.

[doublec]

I'd still love to see a namecoin graph on http://bitcoincharts.com/markets/

http://bitcoincharts.com/about/exchanges/ for implementation details (you'd need to provide the stats from your page as JSON more or less, that's all)

I implemented the API but was told by the bitcoin chart maintainers that they didn't list exchanges where the main currency wasn't BTC. In the NMC<->BTC exchange the currency being bought/sold is namecoins. You can get charts at http://www.nmcwatch.com though.

[Sukrim]

I implemented the API but was told by the bitcoin chart maintainers that they didn't list exchanges where the main currency wasn't BTC.

Yeah, like Virvox... 

I'll drop them a mail.

[420]

put a sell order for namecoins on BitcoinParking, but I don't see it on the sell list

just trying to get my namecoins converted to BTC

[doublec]

put a sell order for namecoins on BitcoinParking, but I don't see it on the sell list

just trying to get my namecoins converted to BTC

Does your balance still show your namecoins? If so, your order didn't take into account the fees. Click the "Calculate" button and it'll tell you how much to take into account for that. If your balance has the order subtracted from it but it doesn't show in your list of orders then the trade went through immediately.

[420]

put a sell order for namecoins on BitcoinParking, but I don't see it on the sell list

just trying to get my namecoins converted to BTC

Does your balance still show your namecoins? If so, your order didn't take into account the fees. Click the "Calculate" button and it'll tell you how much to take into account for that. If your balance has the order subtracted from it but it doesn't show in your list of orders then the trade went through immediately.

my namecoin balance is the little change leftover, the order still shows in OPEN orders and my bitcoin balance is still zero

[P_Shep]

When you generate an address, how long is it valid for?
I notice it disappears after it's used, but can it still be funded?

[Stephen Gornick]

When you generate an address, how long is it valid for?
I notice it disappears after it's used, but can it still be funded?

The instructions still are very clear "Deposit: Please note that each address created can only be used to receive coins once.".

So it is valid until a deposit is made.  But then no longer.

A fork for another exchange doesn't have this restriction:

 - http://bitcointalk.org/index.php?topic=96917.msg1068187#msg1068187

[420]

It ran through after a bit i forget how long it took now

[Fcx35x10]

thanks! this gives me place to park my nmc. is there any value in nmc?