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Bitcoin => Bitcoin Discussion => Topic started by: tcatm on October 04, 2010, 05:46:32 PM



Title: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 04, 2010, 05:46:32 PM
I'll plan offering service that'll allowing you to buy Mhash/s of my GPU cluster for a limited period. You'll get a part of the generated coins after a week according to the number of Mhash/s you bought. So, if you buy 1 Mhash/s for one week for 3 BTC the cluster will generate about 5,5 BTC for you which you will get after the week. You'd win about 2,5 BTC in this case. If difficulty goes crazy or the cluster doesn't generated a single block (unlikely) in that week, you'll get less or even nothing.

You can buy more or even less than 1 Mhash/s. For easier calculation the amount you buy must be in multiplies of 1/6 Mhash/s.

1/6 Mhash/s for one week = 0.50 BTC

I'll offer a total of 30 Mhash/s. If you're interested please email me at tcatm@gawab.com with the amount of 1/6 Mhash/s-chunks you want and your bitcoin adress for payment. I'll then give you an address to send the bitcoins to. For 2 Mhash/s buy 12 chunks.

If this works well, I'll start a service selling up to a few Ghash/s.

Update: 0 Mhash/s left


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: Timo Y on October 04, 2010, 06:07:05 PM
so if I understand correctly, you take all the coins the cluster generates in a  week and divide them among the investors, in proportion to how much Mhash/s they rented?  Or do I only get the coins that "my own" rented GPUs generate?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 04, 2010, 06:12:22 PM
so if I understand correctly, you take all the coins the cluster generates in a  week and divide them among the investors, in proportion to how much Mhash/s they rented?  Or do I only get the coins that "my own" rented GPUs generate?

You get what your rented Mhash/s would have generated on their own. The interesting part is, that this can be far less than 50 BTC. You could invest 0.50 BTC and get 1.2 BTC after a week, even if one Mhash/s would generate only one block every two months.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: BitLex on October 04, 2010, 06:26:37 PM
nice idea,

i'd take 'em all, but for now to leave some space for others,  ;D
i'm in for 3 Mhash/s, or 18chunks.

mail is on its way.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 04, 2010, 06:40:10 PM
Got the mail :)


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on October 04, 2010, 07:03:05 PM
Possible to pay with another method other than bitcoin, as i don't have any at the mo.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 04, 2010, 07:06:51 PM
Possible to pay with another method other than bitcoin, as i don't have any at the mo.

You can buy bitcoins at mtgox.com or get 0.50 free bitcoins at the faucet: freebitcoins.appspot.com


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: MoonShadow on October 04, 2010, 07:12:02 PM
I'll plan offering service that'll allowing you to buy Mhash/s of my GPU cluster for a limited period. You'll get a part of the generated coins after a week according to the number of Mhash/s you bought. So, if you buy 1 Mhash/s for one week for 3 BTC the cluster will generate about 5,5 BTC for you which you will get after the week. You'd win about 2,5 BTC in this case. If difficulty goes crazy or the cluster doesn't generated a single block (unlikely) in that week, you'll get less or even nothing.

You can buy more or even less than 1 Mhash/s. For easier calculation the amount you buy must be in multiplies of 1/6 Mhash/s.

1/6 Mhash/s for one week = 0.50 BTC

I'll offer a total of 30 Mhash/s. If you're interested please email me at tcatm@gawab.com with the amount of 1/6 Mhash/s-chunks you want and your bitcoin adress for payment. I'll then give you an address to send the bitcoins to. For 2 Mhash/s buy 12 chunks.

If this works well, I'll start a service selling up to a few Ghash/s.

Update: 10.833 Mhash/s left


So this is like a futures market for gold mining, as you are selling contracts based upon your mining capacity.  Hmm.

I like the idea, but there is no way that I can see that your customers can audit you, or otherwise verify for themselves of your honesty.  Would you be willing to go to the extra trouble of a self audit, and publish it in some manner?

What is your business model here?  In other words, what do you expect to gain from the renting of this generation capacity that you could not otherwise get from the generation capacity directly?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 04, 2010, 07:28:32 PM
So this is like a futures market for gold mining, as you are selling contracts based upon your mining capacity.  Hmm.

I like the idea, but there is no way that I can see that your customers can audit you, or otherwise verify for themselves of your honesty.  Would you be willing to go to the extra trouble of a self audit, and publish it in some manner?

What is your business model here?  In other words, what do you expect to gain from the renting of this generation capacity that you could not otherwise get from the generation capacity directly?
This is just an attempt to help people with less hashing power get some bitcoins. If difficulty stays low, I'll actually give bitcoins away for free. I think there are many users with less then 1 BTC and some that have > 1000 BTC. those with only 1 BTC can't afford to pay services with bitcoins and mtgox keeps the bitcoins for 30 days because of paypal.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: mpkomara on October 04, 2010, 07:58:17 PM
Bitcoin Faucet 2.0 it sounds like.  i'm in.



Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: BitLex on October 04, 2010, 08:55:18 PM
for those that dont have any and dont want to trade on the markets for 1coin,
PM me and i'll send you 1 or 2 (depending on my mood) to get some chunks.

hurry up before its to late.  :D


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: Aqualung on October 05, 2010, 03:47:59 AM
imho 30Mhash - is to little hash to deal with... it's just 1 new Nvidia GPU


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: DJFC on October 05, 2010, 11:33:07 AM
I'd like to participate.  Any chance you can squeeze me in?
Emailing you.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on October 06, 2010, 05:46:49 PM
Is there any chance i could get a few slots please?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: GeorgeH on October 07, 2010, 04:28:20 AM
I'm in if you do this again!


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: skull88 on October 08, 2010, 06:07:36 PM
Indeed too little hash, but I like the idea, put me on the list for the next round  ;)


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 09, 2010, 06:18:23 AM
I try to keep it running 24/7 but I can't guarantee that uptime. So far 1 Mhash/s has generated about 4.27 BTC since monday.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on October 11, 2010, 01:52:30 PM
Any updates on this so far?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 11, 2010, 04:50:55 PM
I sent the generated bitcoins. For easier calculation I also sent coins to people who joined a day later. The 30 Mhash/s generated 3.69 blocks during the last seven days.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: BitLex on October 11, 2010, 05:29:09 PM
kewl, made a whopping 78% profit in just about a week.  :D

how did it work out for yourself, are you going to do this on a regular basis now?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on October 11, 2010, 05:47:13 PM
I sent the generated bitcoins. For easier calculation I also sent coins to people who joined a day later. The 30 Mhash/s generated 3.69 blocks during the last seven days.

AH nice one thank you ;D can i pay for another weeks mining please?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: ribuck on October 11, 2010, 05:55:43 PM
Thank you!


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 11, 2010, 06:14:42 PM
Next round: 1 Mhash/s for 30 days for 15 BTC in any fractional amount (e.g. you can rent 2 khash/s for 0.03 BTC).

Email me at tcatm@gawab.com to order.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: ribuck on October 11, 2010, 06:22:29 PM
Now that's interesting, because there are likely to be a couple of difficulty adjustments during that 30 days.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 11, 2010, 06:23:57 PM
Now that's interesting, because there are likely to be a couple of difficulty adjustments during that 30 days.

It should still be a win. Either the bitcoin community increases and (hopefully) the value of bitcoins or you get a few free bitcoins.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: S3052 on October 11, 2010, 06:32:45 PM
just sent you a PM


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on October 11, 2010, 06:40:39 PM
just sent you a PM

+ 1  ;)


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: FreeMoney on October 11, 2010, 11:55:29 PM
I'd like to pay USD for hash power. Can this be set up?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: skull88 on October 12, 2010, 12:28:30 AM
Next round: 1 Mhash/s for 30 days for 15 BTC in any fractional amount (e.g. you can rent 2 khash/s for 0.03 BTC).

Email me at tcatm@gawab.com to order.
Order placed by mail  :)


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: Anonymous on October 12, 2010, 01:23:28 AM
I'd like to pay USD for hash power. Can this be set up?

I would be interested in doing that also.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tuxsoul on October 12, 2010, 04:47:11 AM

I like buy some khash.
I send you one mail,  :D


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 12, 2010, 05:56:12 AM
For paying in USD: I'm in Europe so I'd prefer EUR as Paypal charges conversion fees. Any idea how to set this up?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: S3052 on October 12, 2010, 07:48:19 AM
how many Mhash/s do you offer in total?

how much is already bought and how much do you have left?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 12, 2010, 08:45:23 AM
how many Mhash/s do you offer in total?

how much is already bought and how much do you have left?

I can add hardware when needed so there's no hard limit. For orders > 100 Mhash/s it might take a few days to set up the hardware so you'll have to wait more than 30 days for your coins.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 13, 2010, 06:30:35 PM
Payment via Paypal is now possible.

1 Mhash/s for 30 days == $1.30


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: S3052 on October 13, 2010, 07:09:01 PM
how many Mhash/s do you offer in total?

how much is already bought and how much do you have left?

I can add hardware when needed so there's no hard limit. For orders > 100 Mhash/s it might take a few days to set up the hardware so you'll have to wait more than 30 days for your coins.

thanks. I am relieved.

How are you progressing in generating. Are you still expecting to return more BTC than we invested after 30d?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 13, 2010, 07:18:43 PM
How are you progressing in generating. Are you still expecting to return more BTC than we invested after 30d?

One Mhash/s should generate about 19 to 24 BTC. Everyone who bought two days ago has generated 1.72 BTC / (Mhash/s).


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: FreeMoney on October 13, 2010, 09:03:09 PM
Payment via Paypal is now possible.

1 Mhash/s for 30 days == $1.30

PM coming!


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: S3052 on October 27, 2010, 05:26:59 AM
How are you progressing in generating. Are you still expecting to return more BTC than we invested after 30d?

One Mhash/s should generate about 19 to 24 BTC. Everyone who bought two days ago has generated 1.72 BTC / (Mhash/s).

Hi,
would you mind sharing what progress you are making?

thanks


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 27, 2010, 08:37:18 AM
approx. 9.92 BTC/(Mhash/s) after two weeks.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: FreeMoney on October 27, 2010, 09:03:08 AM
approx. 9.92 BTC/(Mhash/s) after two weeks.

Thanks for the update. It looks like we would have been a little better off buying at the beginning that generating, but better off generating than buying at the end.

I guess it is a little more complicated though because if the value and difficulty had decreased we'd do a lot better generating than buying at the start.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 27, 2010, 09:32:42 AM
Even if difficulty rises even more I'll at least make sure everyone who invested makes a small profit form it.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: FreeMoney on October 27, 2010, 10:38:47 AM
Even if difficulty rises even more I'll at least make sure everyone who invested makes a small profit form it.

It looks to me like difficulty will rise soon. How many Mhash were sold in total?

I think we will all make profit compared to buying coins now.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on October 27, 2010, 12:31:22 PM
It looks to me like difficulty will rise soon. How many Mhash were sold in total?

~400


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on November 07, 2010, 02:29:11 PM
Whats the expiry date please?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on November 07, 2010, 04:34:35 PM
Whats the expiry date please?

30 days, i.e. the earliest will end on wednesday.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on November 07, 2010, 07:36:15 PM
Whats the expiry date please?

30 days, i.e. the earliest will end on wednesday.

Ok thank you


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: Bitquux on November 07, 2010, 10:12:50 PM
Is this an ongoing offer? Can we still buy in?


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on November 08, 2010, 12:59:48 AM
Is this an ongoing offer? Can we still buy in?

No, the offer won't be repeated.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: FreeMoney on November 08, 2010, 01:19:55 AM
Is this an ongoing offer? Can we still buy in?

No, the offer won't be repeated.

Any particular reason? Is it difficult to manage?

I do appreciate that you did it.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: ribuck on November 11, 2010, 11:28:23 AM
Next round: 1 Mhash/s for 30 days for 15 BTC in any fractional amount
And indeed it returned a bit more than this. Very worthwhile from my point of view.

Thanks tcatm for doing this. I can't see that you gained anything directly from it, so I guess for you it was a community-building exercise.

It was very professionally done too, no need to chase up the payout etc. Thanks again!


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: BitLex on November 11, 2010, 01:59:31 PM
Next round: 1 Mhash/s for 30 days for 15 BTC in any fractional amount
And indeed it returned a bit more than this. Very worthwhile from my point of view.
a bit more than what?

here's my results:

round 1 (7days)
+2.34BTC/mhash

round 2 (30days)
+1.26BTC/mhash

still profit though, thanks tcatm.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: ribuck on November 11, 2010, 02:10:02 PM
a bit more than what?
A bit more than the cost to participate.

Price: 15 BTC per Mhash/s for 30 days
Payout: 16.26 BTC per Mhash/s at the end of the 30 days

That's equivalent to earning interest at 8.4% per month, equivalent to a compounded annual rate of 163%.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: BitLex on November 11, 2010, 02:20:27 PM
i wouldnt recommend to calculate compound annual rates here.
it dropped from ~78% a week to ~8% a month and i guess it will (or would if this kind of service is offered by anyone) go a lot deeper while difficulty still shoots up like it does lately, we're still closer to, or even above 10blocks/hr than 6.


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: idev on December 23, 2010, 02:17:17 PM
Still have not received my  ???


Title: Re: Anyone willing to buy Mhash/s? / distributed hashing
Post by: tcatm on December 23, 2010, 03:18:11 PM
Still have not received my  ???

You received your coins in Block 84586.