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1261  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 03, 2011, 05:06:12 PM
It looks ok all of a sudden, I open my Fairbrix client and found 50 coins Smiley

The old client or the relaunched client?
1262  Alternate cryptocurrencies / Altcoin Discussion / Re: [Announce] Fairbrix relaunched! on: October 03, 2011, 09:13:36 AM
I confirm the chain is back on track.
All it needs now is to garner enough hashing power and increase in difficulty.

Yes, the relaunched fairbrix is back on track. Currently at block 4401, difficulty is 0.00390625.
1263  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANNOUNCE] Tenebrix, a CPU-friendly, GPU-hostile cryptocurrency on: October 03, 2011, 09:10:36 AM
Fairbrix => Attacked by Artforz/lolcust as too much competition to tenecrap

Now given that I was helping out with FBX, this is plain outright lie.

bulanula, please stop spreading FUD. Stop accusing people of attacking a chain when you don't know for sure. Lolcust is the main reason why Fairbrix exists in the first place.
1264  Alternate cryptocurrencies / Altcoin Discussion / Re: Fairbrix fiasco on: October 03, 2011, 04:08:15 AM
GeistGeld doesnt have this vulnerability plugged. GG fixed the ArtForz attack, which is also fixed in Fairbrix and Tenebrix. The 51% attack exists in all crypto currencies.
1265  Alternate cryptocurrencies / Altcoin Discussion / Re: Fairbrix fiasco on: October 03, 2011, 03:49:43 AM
Maybe you should try to plug the 51% vulnerability first before releasing it again.

How do you plug the 51% vulnerability?
1266  Alternate cryptocurrencies / Altcoin Discussion / Re: Possible 51% Attack on fairbrix (fbx) on: October 03, 2011, 03:30:53 AM
The pchar message headers were changes AND a new genesis block was created. So there's no way that the old fairbrix client was the culprit. It is possible that this chain reorg was accidental, but not likely. Anyways, it seems like the overall network hashrate has grown and it's harder to pull off this attack now. And given that fairbrix has no value right now, it's not really worth it to keep attacking it.
1267  Alternate cryptocurrencies / Altcoin Discussion / What CPU currency are you mining? on: October 02, 2011, 08:52:02 PM
Hey guys, it seems like the Fairbrix relaunch is has some hiccups. I wanted to see what people are mining to see if it's worth it to keep supporting it. Thanks.
1268  Alternate cryptocurrencies / Altcoin Discussion / Re: [Announce] Fairbrix relaunched! on: October 02, 2011, 08:39:23 PM
wtf, I left my notebook running with fbrix for fun, and now all of the coinage it mined is gone.

How... unpleasant.

Yeah, it was unpleasant. Most of the blocks I mined were orphaned as well. It seems like someone did a 51% attack on it.
1269  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 02, 2011, 12:41:25 PM
It's relaunched!
https://bitcointalk.org/index.php?topic=46528.0
1270  Alternate cryptocurrencies / Altcoin Discussion / [Announce] Fairbrix relaunched! on: October 02, 2011, 12:40:57 PM
Fairbrix is a GPU-unfriendly coin based on Lolcust's Tenebrix. The main difference between Fairbrix and Tenebrix is that Fairbrix does not come with 7.7 million premined coins. In fact, only 100 blocks were premined. Like Tenebrix, Fairbrix uses scrypt for proof of work. This makes it hard for GPUs to calculate proof of work. So it's more cost effective to use CPUs for Fairbrix mining.

Fairbrix details:
 - scrypt proof of work
 - 25 coins per block. this stays the same forever
 - blocks found every 5 minutes on average
 - 2016 blocks difficulty retargeting (1 week on average)
 - default rpc port: 8645
 - default port: 8591 (open this in your router)

Anyways, here's the client source:
    https://github.com/coblee/Fairbrix

Windows binary and miner:
    https://github.com/downloads/coblee/Fairbrix/fairbrix-win-client-v1.0.zip

Linux daemon:
    https://github.com/coblee/Fairbrix-daemon

Currently, you must use one of these miners that uses Scrypt:
    https://github.com/Lolcust/Tenebrix-miner
    https://github.com/ArtForz/cpuminer - Fastest but experimental

Also, you may need to configure it for your machine to get the optimal speed. Check the README file. Somewhere on the forums, people have suggested running configure like this:
    CFLAGS="-march=native -O3 -Wall -msse2 -msse3 -msse4.1 -msse4.2 -msse4 -mavx" ./configure
OR
    CFLAGS="-march=native -O3 -Wall -msse2 -msse3 -msse4.1 -msse4.2 -msse4" ./configure

To mine, you will need to copy the fbx.conf file to:
    Windows: C:\Documents and Settings\username\Application Data\fairbrix
    Mac: ~/Library/Application Support/fairbrix
    Unix: ~/.fairbrix
And make sure you change the rpcuser/rpcpassword in the fbx.conf file.

Here's a Fairbrix block explorer:
    http://blockexplorer.sytes.net/chain/Fairbrix

Pool and exchange should be coming soon.
1271  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 02, 2011, 11:58:18 AM
Simply removing the
Code:
custom_inflation=0
line in the config is enough to restore expected behaviour.

No need for a re-launch.

Since that would then make the 0 coin blocks invalid blocks, it is a block forking change, so a relaunch is needed.


Yup, and that's why I worked all night on getting this done right.
I doing final testing right now. The chain is only on block 78.
Will release the source soon.
1272  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 02, 2011, 11:37:46 AM
I'm still working on a relaunch. The source is here: https://github.com/coblee/Fairbrix
It's not fully working yet. But I'm going to make it such that you don't need a conf file.

I would not suggest mucking around with your fairbrix.conf file to try to generate coins for the original chain. This would just make people fork different chains and create a huge mess.
1273  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 02, 2011, 08:05:16 AM
Unfortunately this launch was a false start. There was a problem in the config causing all blocks mined after the 100th blocks to contain 0 coins. The fix would unfortunately require a restart of the coin.

michaelmclees has asked me over IRC to take over for him. I will try to do my best. I will set up a new github.com repository with the source so people can do diffs. And generate a new genesis block. I will premine a few to make sure things work ok. Apparently, that was really needed. When everything is looking good, I will post the client and the source.

In the meantime, please stop your clients and miners and switch back to tenebrix. Smiley

What happened ?

I made sure that the custom inflation (aka make magkal blocks with arbitrary coinage) is off in the config (custom_inflation=0) and set subsidy to "allways 25" (Subsidy=25), wtf did go wrong ?

The code checks for the flag custom_inflation, so setting it to 0 still triggers custom inflation. Since post_Subsidy is not set, after 100 blocks, the subsidy becomes 0. doh!

mmm crap.

But why does inflation_trigger default to 100 ? Also, dudes, we can theoretcially fix it without restart, just with a config update.

custom_inflation=1

infaltion_trigger=(current block nucmber)+ 5 blocks

post_Subsidly=25

You sure. wouldn't the 0-coin blocks be invalid with your new config?
1274  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 02, 2011, 07:53:27 AM
Unfortunately this launch was a false start. There was a problem in the config causing all blocks mined after the 100th blocks to contain 0 coins. The fix would unfortunately require a restart of the coin.

michaelmclees has asked me over IRC to take over for him. I will try to do my best. I will set up a new github.com repository with the source so people can do diffs. And generate a new genesis block. I will premine a few to make sure things work ok. Apparently, that was really needed. When everything is looking good, I will post the client and the source.

In the meantime, please stop your clients and miners and switch back to tenebrix. Smiley

What happened ?

I made sure that the custom inflation (aka make magkal blocks with arbitrary coinage) is off in the config (custom_inflation=0) and set subsidy to "allways 25" (Subsidy=25), wtf did go wrong ?

The code checks for the flag custom_inflation, so setting it to 0 still triggers custom inflation. Since post_Subsidy is not set, after 100 blocks, the subsidy becomes 0. doh!
1275  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 02, 2011, 12:59:17 AM
Unfortunately this launch was a false start. There was a problem in the config causing all blocks mined after the 100th blocks to contain 0 coins. The fix would unfortunately require a restart of the coin.

michaelmclees has asked me over IRC to take over for him. I will try to do my best. I will set up a new github.com repository with the source so people can do diffs. And generate a new genesis block. I will premine a few to make sure things work ok. Apparently, that was really needed. When everything is looking good, I will post the client and the source.

In the meantime, please stop your clients and miners and switch back to tenebrix. Smiley
1276  Alternate cryptocurrencies / Altcoin Discussion / Re: FAIRBRIX - Announcement - CPU friendly - GPU hostile - Tiny premine on: October 01, 2011, 10:43:20 PM
Correction:  Four most recent blocks found give 0.00 coins.

Are you running win client or linux? I'm running linux client and I'm generating 0 coins in each block found.
1277  Alternate cryptocurrencies / Altcoin Discussion / Re: Coming Soon - Fairbrix on: October 01, 2011, 02:50:43 AM
Or you could just send those coins to random addresses. Then some people someday will find an extra couple brix in their wallet Smiley No need to favor early adopters!

That's like destroying them. Finding a collision is highly unlikely.

Check this post to see how unlikely that is: https://bitcointalk.org/index.php?topic=4858.msg71200#msg71200
1278  Alternate cryptocurrencies / Altcoin Discussion / Re: Coming Soon - Fairbrix on: September 30, 2011, 10:46:08 PM
I guess I should be clear about what a premined coin is.  Premined coins are those above normal within the Genesis block itself.  This chain will not feature such a Genesis block.

By almost everyone else's definition of premined coins is coins that are mined before the client is released to the public. Ixcoin's creator premined 580k coins before releasing ixcoin. Lolcust just happened to come up with a way to put all the premined coins in the genesis block so as to not bloat the chain unnecessarily.

So just say fairbrix will have 3775 premined coins as oppose to tenebrix's 7.7 mil. Nothing wrong with that.
1279  Alternate cryptocurrencies / Altcoin Discussion / Re: Coming Soon - Fairbrix on: September 30, 2011, 10:32:17 PM
I love it, "No premined coins except the 3775 I'm premining!".

If you really want to call it fairbrix and claim no premined coins, then you need to donate those premined coins to a faucet or something.

And do you really need to premine to lock in the genesis block? The genesis block can be locked in by itself in the config and no one can mess with it without forking another chain. So what's the reason the premine 150 blocks other than just to keep those coins to yourself?
1280  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANNOUNCE] Tenebrix, a CPU-friendly, GPU-hostile cryptocurrency on: September 30, 2011, 09:45:59 PM
does not look so profitable to mine at the current price on https://btc-e.com/tbx_exchanger

Profitable compared to what? lol
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