At the current point, yeah. tbx seems to have about 1200kH/s on it, fbx looks like about 150.
So a potential attacker only needs something like 60 high end cpus or about 1000 really crappy ones to have a good chance at forking and overtaking the tbx chain, about 1/8 that for fbx.
good information and this is why I am planning to stay away from CPU coins for a while  All you need is a some asshole with a botnet and you can say bye-bye to all your mined coins. Well, only time will tell. Though I think that the fbx incident is more likely than not to be accidental (I wonder what would blockchain analysis by more competent peers reveal, though) |
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http://en.wikipedia.org/wiki/Trojan_horse_%28computing%29Software trojans are definitely not a myth. Has there been a bitcoin related one yet? Absolutely! I forget the name, but there was some wallet stealer Windows .exe that promised vastly higher hash rates. It uploaded wallets to an FTP site instead. No, I mean a documented case of malware propagating through distribution of alt-chains specifically ? |
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Was there a documented case of malware propagation via this route, or is this more or less a "what if..." Infosec Comparative E-Masculinity thing  ? |
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wtf, I left my notebook running with fbrix for fun, and now all of the coinage it mined is gone.
How... unpleasant.
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The new algorithm is a good idea, but if you're trading (or otherwise supporting) this block chain you need to be aware that the founder "pre-mined" *3 years* worth of coins. I'll let that sink in. If you got in on day 1 you weren't an early adopter, you were equivalent to some schmoe getting into bitcoin some time NEXT YEAR. That's why the mining reward is 25 brix/block, because the founder took the first 3 years worth of coins for himself.
Priority one for all these scamchains is to get onto exchanges and be available for liquidation. Even before mining pools. Every chain this guy makes is listed on some exchange faster than you can say "wallet rape."
As long as the founder of this (same guy as geistgeld) keeps coughing up enough shitcoin variants at a rate of once per week he can make a good living from those not able to beat him to the exit. For this one, with an exchange of .002 brix/btc he awarded himself 14,000 BTC (or at current prices, $60,000). Not bad for a few days of work Given that the premined coinage's existence and intent is stated on the official site and in the forums, and is trivially monitorable, you hardly need to make anyone with english reading skills "aware" of it (and those without won't get your post anyway) Now, if I was really at a race to the exit, I would have cashed out before a pool, don't you think ? 
Hence the posts to the speculation forum instead of keeping this in the alternative currencies forum until the "experimental" currency is ready for adoption. The intent is to have greedy but ignorant investors provide more established, valuable currency ASAP.
Nah, more like "some of the shmott speculator folks might enjoy toying on this small market with their spare change for fun or out of experimental curiosity". It's not like I'm saying that it's the next HUGE THING BUY ALL OF IT NOW BEFORE IT IS TOO LATE, amrite ? He's making it pretty clear that the chain is supposed to use spare CPU capacity. At the moment he can't really dump 7 million coins onto the market, so that has to wait for a while.
Actually, that would be pretty silly of me given that I know at least two people who are watching my premines via automatic tools. It's not very hard given that blockexplorer is up |
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Pool seems to have some mild statistic issues remaining, hope those get worked out soon. It kinda upsets many miners.
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The botnet issue is addressed in the Tenebrix faq and best discussed in main thread. Let's keep this thread for discussing ASICs, FPGAs and other scary acronyms, as well as their possible impact on Tenebrix mining  |
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For the love of whichever deity you worship (and the love of science if you are atheist), I have never claimed a position of "leadership" (whatever that means in the context of open-source, community driven project ). At most, I am just a guy with a bunch of ideas and a vested interest in Tenebrix's survival. |
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I had a go at mining these since yesterday and it's really quite difficult to get a block...
I'm using:
1x i5 (4threads)
1x q6600 (3 threads)
1x athlon x2 (1 thread)
and 1 8-core xeon server (8 threads).
so far I've only managed to get 1 block on the i5... close to 20 hours now.
Hm, there are quite a bunch of heavy-hitters mining and hoarding TBX right now, and quite a bunch of miners of other coins running it at idle priority on their rigs, so soloing TBX might be a mite tricky, though what you report seems a mite too pessimistic. What scantimes are you using? Also, did you try the new Tenebrix pool @ simplecoin.us ? |
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It's actually quite FPGA resistant. You need a 700+ buck FPGA to reach performance of a 100 buck CPU in Tenebrix (Already tested by Art, talk to him if you want nitty-gritty details) Of course, ASIC customized to the task ("lots of fast memory" as you put it) could crunch this baybe fairly well, but for the love of Zod, TBX has to become hellishly expensive and hellishly popular for it to make sense to even try developing such a solution (and implementing it would likely still make no sense, since economies of scale make CPUs very cheap, and it is likely that the number of CPU crunchers you can deploy for the cost of a single "mem-rich" application-specific design would still outperform said application-specific scrypt-cruncher). So it is quite hostile to at least one common class of "custom" hardware, and another one is plan uneconomical to deploy. Also bear in mind that CPUs are common household items, even powerful multicoire ones. GPUs suited for mining well are less common. FPGAs are pretty much scientific and special-purpose exotica, and a Tenebrix-optimized ASIC is a theoretic entity, so Tenebrix has a potentially huge miner base, being well suited for the one of the most common types of computational substrate available, and less tendency to have its minerbase concentrated. And of course there is the fact that CPUs GPUs and FPGAs all retain uses other than "mining some cryptocurrency" while a hypothetical Tenebrix ASIC will be only good for breaking a certain implementation of Scrypt, thus being completely worthless outside Tenebrix network, making a dedicated "Tenebrix cruncher board" even more economically unsound So to sum up, Tenebrix is GPU-hostile and quite FPGAs hostile, and sufficiently tricky that even powerful ASICs (should such ever be designed for Tenebrix) would likely still be inferior to CPUs (but this time due to costs involved in making those ASICs happen) All in all, quite custom-hardware hostile, it turns out to be. |
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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. 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? Old ones are interpreted as okay blocks, new 0-blocks AFTER triggervalue will be rejected by "upgraded" net |
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Questions to simplecoin are best delivered via #simplecoin channel, since quite frankly I have little ability to provide pool support...
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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. 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 |
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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. 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 ? |
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BTW, has anyone seen solidcoin public beta ?
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Sold all my TBX. I can't see how people value a currency with such a huge pre-mine.
Sold all my USD. I can't see how people value a country with such a huge debt. Debt ? Ha-ha, you should see their pre-mine lol (and also, they can pre-mine more whenever they feel like it ) |
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Darn, I thought it was going to be easy... gotta wait till I have time to figure this stuff out. I thought the pool was gonna make it easier!!! oh well...
Are you on linux or on windows? If on windows, just get the Windows Pak and BLAST AWAAAY! http://www.tenebrix.org/get-started.html |
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Pool open @ simplecoin.us
Doesn't seem functional just yet. Can we use GUIMiner for this? IF so, do we use ufasoft (CPU miner)? Mine doesn't seem to be working yet. No, Tenebrix is cpu mining only via Tenebrix Miner so far (minerd), it's included in the windows pack, linux users can find it on github and build. And it works like a charm - my Tenebrix miner is finding moneys and not afraid of anything ! The windows pack of guiminer? Sorry, I'm dumb and haven't been keeping up with all the latest versions of things. Does anyone have a link to get that miner? check out www.tenebrix.orgAnd no, that is not a GUIMiner, that is specialsauce Tenebrix miner |
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@ Matoking Well, he can - if he asks Art he might give him the optimized GPU miner for tenebrix. A good radeon will be slightly slower than 2-3 cores of a recent-ish Phenom though @racerguy a share |
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