Search content
Sort by
Showing 14 of 14 results by smokie128
... just saw http://www.btcrow.com/.
Looks good at first glance, but as the contact page is 404'd, I'd be careful.
Looks good at first glance, but as the contact page is 404'd, I'd be careful.
Hi I'm the owner and founder of BTCrow.com, I just noticed your post.
there's no contact page so can't be 404'd: it lead to our contact email: info@btcrow.com
Can you please tell me how you get this error ?
Also there's the official thread and some people already did transaction and posted review:
http://forum.bitcoin.org/index.php?topic=21544.0
If you need informations or have comments / suggestions you can reach us at this address: info@btcrow.com or post it into the official thread.
Thanks
Jules
At the time I checked, the Contact link lead to /contact.html, which (obviously) wasn't there. Using FF 5 with NoScript and AdBlockPlus.
Now it correctly points to the mail addr.
... just saw http://www.btcrow.com/.
Looks good at first glance, but as the contact page is 404'd, I'd be careful.
Looks good at first glance, but as the contact page is 404'd, I'd be careful.
die rechenleistung die das btc netz erbringt ist schon mehr als sinnvoll - sie gewährt die sicherheit des systems. IMHO ist sie zwar derzeit etwas überdimensioniert, das hat aber auch den vorteil, dass ein DDOS des gesamten netzwerks durch regierungen etc stark erschwert wird.(siehe dazu meinen post zum thema ddos durch massive erhöhung der difficulty im englischen development)
Die Rechenleistung wird dabei dazu verwendet, die Transaktionen im netzwerk zu verifizieren. Das mag derzeit noch unnötig erscheinen, was aber wohl daran liegt, dass Transaktionen im Verhältnis zu der leistung die dafür eingesetzt wird viel zu wenig ausmachen. Wird aber schon noch kommen...
Die Rechenleistung wird dabei dazu verwendet, die Transaktionen im netzwerk zu verifizieren. Das mag derzeit noch unnötig erscheinen, was aber wohl daran liegt, dass Transaktionen im Verhältnis zu der leistung die dafür eingesetzt wird viel zu wenig ausmachen. Wird aber schon noch kommen...
Könntest du diesen Threat bitte noch mal verlinken? Genau dazu habe ich noch eine Frage. Das Problem aus folgendem Threat ging mir nicht aus dem Kopf.
http://forum.bitcoin.org/index.php?topic=26237.0
Vom Topic mal abgesehen finde ich den Gedanken gar nicht so abwegig. Große Pools vereinen den allergrößten Teil der Rechenleistung. Wenn ich einige Pools für etwa 15 Minuten durch DDOS ausschalte währe es dann denkbar das ein angepasster Miner in einem Botnetz in dieser Zeit die Majorität der Rechenleistung erlangt? Ich kann mir vorstellen mit 4 Mill. Rechnern kommt man auch mit CPU Minern auf eine recht hohe Hashrate.
Wenn ich mit Deepbit und Slush fast 3/4 der gesamten Hashingpower für einen gewissen Zeitraum wegnehme, könnte das reichen einem genügend großen Botnetz deutlich mehr als 50% zu geben? Auch wenn dieses Cheating nachvollzogen werden kann, währe es noch immer Cheating und wahrscheinlich nicht mehr rückgängig zu machen. Oder irre ich hier?
Ist vor kurzem ja schon passiert, als BTCGuild attackiert wurde. BTCGuild ging offline, kurz darauf hatte man 1/4 der Gesamtleistung von "other". Und ich glaube nicht, dass alle BTCGuild-Miner mal eben aufs Solomining umgeschwenkt haben... Mit einem entsprechendem Botnetz ist das System natürlich verwundbar. Deswegen sollte es weiter verbreitet werden, damit es umso schwerer für den Botnetzbetreiber wird, die nötige Rechenleistung aufzubringen.
Hi,
72°C is absolutely fine. (Remember from school: Water freezes at 0°C and boils at 100°C)
I'm running my HD6970 (OC'ed) at 96°C (measured with AIDA64 as "GPU Display Diode") and have just minor issues while mining (means, window animations can be a bit laggy and flash videos result in a complete system freeze, which isn't really a problem because i'm mostly away from my machine)
For your CPU: same as above, it's absolutely fine. With CPU's, dangerous temperatures begin at ~80 to 85 °C. But today's CPU's are designed to automatically shut themselves down when operating beyond a certain temp (about 90 degrees, i guess), so that there is a minimal to zero danger of a "core meltdown".
Hope i could help you.
72°C is absolutely fine. (Remember from school: Water freezes at 0°C and boils at 100°C)
I'm running my HD6970 (OC'ed) at 96°C (measured with AIDA64 as "GPU Display Diode") and have just minor issues while mining (means, window animations can be a bit laggy and flash videos result in a complete system freeze, which isn't really a problem because i'm mostly away from my machine)
For your CPU: same as above, it's absolutely fine. With CPU's, dangerous temperatures begin at ~80 to 85 °C. But today's CPU's are designed to automatically shut themselves down when operating beyond a certain temp (about 90 degrees, i guess), so that there is a minimal to zero danger of a "core meltdown".
Hope i could help you.
There should be a way to exclude botnets...
For example, some kind of notification once a week that's hardcoded into the miner. Also, pools should only accept miners that have this notification feature (e.g. by checking the hash of the miner code).
At least, this would ensure that the pools are bot-free...
Further, the original Bitcoin client should have the same feature.
I know that this would only temporarily stop the botnetters, but at least it gives us time to invent a better solution to protect the real Bitcoiners from hordes of Bots.
For example, some kind of notification once a week that's hardcoded into the miner. Also, pools should only accept miners that have this notification feature (e.g. by checking the hash of the miner code).
At least, this would ensure that the pools are bot-free...
Further, the original Bitcoin client should have the same feature.
I know that this would only temporarily stop the botnetters, but at least it gives us time to invent a better solution to protect the real Bitcoiners from hordes of Bots.
Re: Why thefts and hackers stealing wallets is a good thing...
The problem in the MtGox incident was not unsecure wallet.dat's with the users... it was unsecure MtGox's databases. So the trading sites should get some standard equal to a modern online banking site, and not md5-hashed or even plaintext passwords in some unsecured SQL database.
Seems to me you are already your own pool. 
Do you want to set something up so some more people can join you?
Do you want to set something up so some more people can join you?
I second that
I don't know how much PCIe bandwith a miner takes up, but i guess the reason could be in the different PCIe data rates the mobo supports.
e.g. my board has one PCIe slot with the full x16 bandwith and an additional one limited to x4.
It could also be the crossfire thing, as the first card has too many mining operations running to properly support the second card with enough data.
Just a guess because i don't know what interface the second card uses to get it's data from...
e.g. my board has one PCIe slot with the full x16 bandwith and an additional one limited to x4.
It could also be the crossfire thing, as the first card has too many mining operations running to properly support the second card with enough data.
Just a guess because i don't know what interface the second card uses to get it's data from...
I think such a bitcoin marketplace would need some kind of trusted institution, like an escrow service. It should look something like this:
The buyer (B) buys an item on the marketplace.
He hands the cash to the escrow (let's just call it BitPal for now).
The seller ships his item to BitPal.
BitPal checks if it has the ware and the cash.
If both is at BitPal, it ships the item to the buyer and the cash to the seller.
Using this system would make transactions a lot easier, because now you just have to trust a single institution instead of hundreds of individuals.
Of course, this would kinda destroy the anonymity of Bitcoin because BitPal would have a lot of money and a lot of personal data, but it's just a thought on what is possible.
Tell me what you think!
The buyer (B) buys an item on the marketplace.
He hands the cash to the escrow (let's just call it BitPal for now).
The seller ships his item to BitPal.
BitPal checks if it has the ware and the cash.
If both is at BitPal, it ships the item to the buyer and the cash to the seller.
Using this system would make transactions a lot easier, because now you just have to trust a single institution instead of hundreds of individuals.
Of course, this would kinda destroy the anonymity of Bitcoin because BitPal would have a lot of money and a lot of personal data, but it's just a thought on what is possible.
Tell me what you think!
