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You can run several mining programs on the same GPU.
If the agression settings (in phoenix' teminology) are the same, they will hash both at the same hash rate.
Should one instance go down (Pool down/problems) the other one will automagically get the full hash rate.
Currently I'm running 3 miners with ~100MH/s each on my single GPU:
100MH/s Eligius
100MH/s BTCguild
100MH/s Namecoin (Bitparking pool, as I don't want to have any wallet files on my mining computer and don't want to have another computer running 24/7 just to host a namecoind)
As written above, namecoins (if you can sell them at 0.006BTC a piece) are currently ~20% more profitable than Bitcoins.
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Another idea to diversify:
Offer a namecoin mining pool too.
A BIG lot of your code should be reusable, there is nearly no competition and many miners are anyways compatible to Namecoin.
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Can't register with value-code: TH-R141
Use TH-R181 then :-) Or any other Refcode in this thread...  |
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If I were to start a new isolated firewalled bitcoin network, working from the same base block as the existing network, with only a single slow host working on it, the chain would still get longer by 1 block every 10 minutes, since the difficulty would adjust after 2 weeks to ensure this. Also difficulty changes only every 2016 blocks - not every 2 weeks. It is expected that hash rates grow/decrease within limits (= not moving from a few Terahashes/s to a few Megahashes/s in your example). also the new difficulty takes into consideration the average time it took to calculate the past 2016 blocks. For the difficulty to go down by 50%, the last 2016 blocks would need to be solved within 4 weeks, instead of 2. The Bitcoin blockchain is essentially a global clock, where it is ensured more or less that it's hard enough for members to trigger a "tick" at the same time - and if they do, the network will solve it on it's own. To be able to build a longer Blockchain than the official one, you need more hashing power than the rest of the network. This is also known as the "51% attack" and which is why people are currently worried that deepbit might become (again) big enough to do this in theory. In practice, deepbit will most likely NOT pull off a stunt like that, but it still poses some dangers and insecurities. |
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Open a business (A "Limited" in UK can be opened with only 1 GBP I heard), open an account and start accepting EUR! The first one that has the balls (and lawyers...  ) to do this will most likely be able to cover them in gold soon. |
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Update: I tried to move the rigs off of BTCmine.com today, but for some reason they did not want to form a stable connection with BTCguild or Eligius. I'll be working on it more tomorrow, but for now we'll have to deal with the 2% fee. The important thing is that we're mining.
True. You could try the "multiple mining clients per card" tactics, so unstable connections might not affect you that much. Also btcguild + Eligius had both some smaller troubles yesterday, maybe try them again after the weekend or so. 2% fee is kinda not that much in the short run, I just wanted you to be aware, that in the longer run it might hurt a bit (and even more with increasing difficulty! Every Bitcent you mine less right now can be a week worth of work in half a year!). |
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In Europe there are still a lot of 58xx cards on sale...  |
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Man kann versuchen über Libertyreserve oder Dwolla (geht das überhaupt für Nichtamerikaner?!) zu gehen.
Aufgrund des dann doch nicht so unerheblichen rechtlichen Risikos wird's wohl noch etwas dauern, bis sowas auch bei uns kommt...
Wer sich darauf einlassen will, kann ja versuchen TradeHill Europartner zu werden! Dürfte sicher eine Goldgrube sein, wenn man da der Erste ist.
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Since difficulty constantly rises and pools control more computing power than ever before the BTC/computing power will go down and so will the $/computing power if exchange-rates stay the same or lowers.
I was just wondering if the pool owners could re-program their system so that the computing power can be used for bruteforcing?
If it was possible they could just pay off all the bruteforce computing-power with the equal amount of BTC/share without the miner knowing a thing.
So, could this lead to a scenario where it is possible to buy bruteforce computing-power?
Why not think about this in terms of "pay for computation"? The pools manage a distributed cluster. Say a University needs number crunching done. The pool publishes an update module for a special miner, you still get paid bitcoins for computation by the customer. When there's no work, back to bitcoin mining. This would require the University/Customer to pay in Bitcoins, NOT in USD. Other than that, I don't see many problems. If you start to create a BOINC project with a few current (and this way also automatically updated!) Bitcoin miners to choose from, you could also easily switch the worker program between Bitcoin miners and other programs, if they are not too huge. BOINC already has some kind of "share" system in place (called credits) and a customer could just buy X credits of work for his own program and people still get paid the same amount per submitted credit (If you do it via a PPS/PPC system... proportional or scored might be a bit harder, but also not impossible). This might even go so far that nVidia users could earn more BTC via "working" than "mining".  |
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Because your client relies on the integrity of the blockchain when processing blocks, you don't want to just use a torrented copy.
BitTorrent does heavy checksumming - if you'd offer a weekly updated "official torrent" (and maybe even download this torrent via the client if it's new!) this would NOT compromise any integrity imho. Any node I download blocks from could send me bogus data instead as well... |
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Wouldn't you just need to check at every block (= ~every 10 minutes) if a transaction was in it to an address that you own? Doesn't look that bad to me...
I don't think you can, with an unpatched bitcoind, get notified of a new block, or get a list of all transactions in a block. Well, pools send out a long polling notification on each new block - until you figured out how to do this with bitcoind, you could just listen to a few bigger pools and if all of them send a long polling notice, recheck your balances. A little dirty hack, but should work... |
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Because without patching bitcoind it's a pain. You have to constantly poll the addresses to see if any deposits have gone in. Multiply this by 10,000 users and it's not scalable. So by giving a 'one shot' address you can scan only this address, and expire it after a couple of days.
Wouldn't you just need to check at every block (= ~every 10 minutes) if a transaction was in it to an address that you own? Doesn't look that bad to me... Also you could just use a different wallet every 10/100/1000(?) users and check their balance - if it changed, check the individual adresses in there. Last but not least you could sort your adresses by activity + age and first scan the newest + most active ones on each block. If there's still some balance change left in some of your wallets, check deeper and deeper only on these. In the end it might not be as 100% scalable as "throwaway adresses" but maybe enough - and it would eliminate a lot of support calls ("I've sent more money to the adress and this time it has not showed up!"). For the "untraceable" fans, you could still offer a "throwaway" solution/switch with a clear warning sign. I wonder how generated transactions show up, would be great if these too get supported by the big bitcoin aggregators (mybitcoin, MtGox and maybe soon(?) TradeHill). Edit: Oh, and switch to UTC only on your site please! |
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[...] TH-R1138 Leider habe ich die 1337 um genau EINE EINZIGE STELLE verpasst!  [...] Von 1138 bis 1337, ist bei mir aber nicht nur eine Stelle?? Um die Uhrzeit, zu der ich das geschrieben hat, erschien's noch logischer als jetzt...  |
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Gerade frisch im allgemeinen Forum aufgetaucht: http://forum.bitcoin.org/index.php?topic=13650.0Offenbar habe sich ein paar "alteingesessene" Bitcoiner es nicht nehmen lassen, eine Konkurrenzplattform zu MtGox aufzustellen, und nach kurzer Durchsicht bin ich erst mal sprachlos! Einige Sachen (z.B. API!) fehlen noch, allerdings bieten sie jetzt schon einige sehr tolle + wichtige Features an, wie Handel in zig verschiedenen Währungen(!). Auszahlungen sind derzeit immer noch Dollarlastig, man kann aber sogar iTunescodes oder WoW-Gametime kaufen... scheint recht Zielgruppenangepasst zu sein, das Ganze! [Edit: Heutzutage [20.6.] schon lange nicht mehr... wird ja vielleicht wieder kommen, wenn sie mit dem aktuellen Ansturm zurecht kommen] Interessanterweise gibt es auch noch ein Referralsystem mit 10% Rabatt für Leute die einen Refcode bei Accounterstelliung verwenden (laut https://www.tradehill.com/Support, Unterpunkt "Fees and Commissions") und ich nehme mir gleich mal die Freiheit heraus, mit meinem "nur 4-stelligen" Refcode zu protzen (ich nehme an, die werden sehr bald fünfstellig werden...): TH-R1138 Leider habe ich die 1337 um genau EINE EINZIGE STELLE verpasst! [Edit... ja, es war spät... :-[] Naja, sei's drum - und wie immer gilt: Man vertraut dem Betreiber sein Geld/Bitcoins an! Also Vorsicht und Augen auf, nicht gleich wie wild die neue Yacht verpfänden und das Geld nach Chile senden! Lieber etwas vorsichtig handeln und mal schaun, was da draus wird. |
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According to https://www.tradehill.com/SupportWhen you create an account using a referral code your commission rate is automatically discounted 10%. Here's my referral code, so if you are afraid that you might only get -5% on the one in the OP and want to have a "user" one: TH-R1138Nice page btw., I'll wait some time until I start trading probably, but gratulations anyways! |
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You could even use an entire pool in theory to mine in another pool! There might be artificial/technical limits, but within reasonable limits I don't see any issues, other than not being able to monitor workers individually. |
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Oil has never crashed before?  There's a "little bit" missing on that graph... 2004-2011. Get the data and prepare to be scared/amazed! Also on the BTC picture there are 2 weeks missing - it would extend now up to ~30 USD. |
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Krank: http://mtgoxlive.com/Derzeit sind schon fast alle Bitcoins auf MtGox weggekauft!  Bei einem Kauf von nur 3000 BTC käme man schon auf einen Endkurs von 40 USD! Die Stufen da dürften schon fast alte "Spaßangebote" von frühen Minern sein... Wenn das weiter so anhält, kann man sich ja auf was gefasst machen... |
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Da Steuern nicht über Nacht und im Geheimen eingeführt werden (können), wird alleine eine ernsthafte Erwägung einigen Banken das Leben kosten (--> Bargeldflucht, geade bei den derzeit niedrigen Zinsen nicht mal so "teuer"!). Daher ist jede Diskussion über sowas wirklich nur Stammtischgerede.
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