Bitcoin Forum

Economy => Trading Discussion => Topic started by: Otoh on March 19, 2012, 09:48:23 PM



Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: Otoh on March 19, 2012, 09:48:23 PM
as he's locked his post, I opened this thread re how the future raffles he proposes (& those by others) could be seen to be more open/fairer, no criticism intended, for me the only way for raffles to be seen to be fair would be if operated like Bitlotto (https://bitcointalk.org/index.php?topic=34007.0;all) where your entry is also your ticket, the blockchain winner choosing part is fine, then the publicly seen winner gets the raffle prize plus all BTC that were bet for more than it's value less a predetermined organizer's commission on those or on the total that was bet - say 10% (in Bitlotto's case it's a very reasonable 1% of all funds staked)

this is because as others have already pointed out, if the total bet isn't all or almost the same as that given back in prizes then it costs the organizer nothing to put in fake bets to himself that stack the odds in his favor at no cost to him, if he has to return say 90% of those sock puppet bets then it's far less attractive a temptation & he would need to add bets excessively to have a good chance not to lose which would be fairly obvious to those participating

feedback on how this could be made more watertight appreciated, also should raffles best go in the Marketplace or in Gambling?

either way, congrats to the BFL Single winner (please post here when you've received it) & I'm looking forward to the next one ~ like a $15k mini rig maybe  :P


Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: Fiyasko on March 20, 2012, 07:46:35 PM
as he's locked his post, I opened this thread re how the future raffles he proposes (& those by others) could be seen to be more open/fairer, no criticism intended, for me the only way for raffles to be seen to be fair would be if operated like Bitlotto (https://bitcointalk.org/index.php?topic=34007.0;all) where your entry is also your ticket, the blockchain winner choosing part is fine, then the publicly seen winner gets the raffle prize plus all BTC that were bet for more than it's value less a predetermined organizer's commission on those or on the total that was bet- say 10% (in Bitlotto's case it's 1% of all funds staked)

this is because as others have already pointed out, if the total bet isn't all or almost the same as that given back in prizes then it costs the organizer nothing to put in fake bets to himself that stack the odds in his favor at no cost to him, if he has to return say 90% of those sock puppet bets then it's far less attractive a temptation & he would need to add bets excessively to have a good chance not to lose which would be fairly obvious to those participating

feedback on how this could be made more watertight appreciated, also should raffles best go in the Marketplace or in Gambling?

either way, congrats to the BFL Single winner (please post here when you've received it) & I'm looking forward to the next one ~ like a $15k mini rig maybe  :P
Nooo!, i'd rather he raffle off more singles!, i acutally want to have a chance at winning if i only buy One ticket (haha, an actual chance)


Title: Re: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: grue on March 21, 2012, 12:18:13 AM
each ticket's hash: sha(txid + hash of block that the transaction is in)
lowest hash wins!


Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: tynt on April 13, 2012, 05:34:58 PM
At last I received my BFL but I can't figure out how to get this thing to work.


Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: vampire on April 13, 2012, 06:19:41 PM
At last I received my BFL but I can't figure out how to get this thing to work.

get cgminer compiled for bfl :-)


Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: tynt on April 13, 2012, 06:35:25 PM
I compiled with --enable-bitforce, still does not work.
Ufasoft didn't work too.

I'll try linux next.

http://img714.imageshack.us/img714/4658/bitforcedrivers.png (http://imageshack.us/photo/my-images/714/bitforcedrivers.png/)




Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: Otoh on April 13, 2012, 06:36:54 PM
At last I received my BFL but I can't figure out how to get this thing to work.

hey, good news - thanks for letting us know, hope that you have it up & coining asap


Title: Re: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: DeathAndTaxes on April 13, 2012, 06:37:37 PM
Totally off topic but if the BFL Single is showing as not installed nothing you do in cgminer is going to work.  Before your run around chasing your tail you might want to check the BFL threads.

cgminer doesn't install any drivers it simply "talks" to the Single over the USB port.  Not installed = nothing for cgminer to talk too.


Title: Re: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: mc_lovin on April 13, 2012, 09:11:33 PM
you could send it to me and i could give it a try :)


Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: tynt on April 13, 2012, 10:34:29 PM
I installed virtual com port drivers and it works! http://www.ftdichip.com/Drivers/VCP.htm
I don't see anyone has mentioned this.


Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: S3052 on April 13, 2012, 10:41:52 PM
a bit offtopic, but: maybe we should set a bounty for the one who cracks the 5 $ mark..


Title: Re: Matthew's recent raffle for a BFL Bit Force Single
Post by: rjk on April 14, 2012, 02:28:40 PM
I installed virtual com port drivers and it works! http://www.ftdichip.com/Drivers/VCP.htm
I don't see anyone has mentioned this.
They would have been installed automatically if you allowed windoz to search for drivers online.