Or maybe you want to buy a rare Magic the Gathering card, but don't trust the Online eXchange.  You find someone who will sell the card for 200 BlackCoins, but neither of you are comfortable sending to the other person first in case it's a scam.

You create a BlackHalo contract and both deposit 300 BlackCoins each - you each hold one of the keys to this money. They send your card to your safe deposit box, you send the BlackCoins to their address, and once you're both satisfied that everything is fine, you sign the contract transaction and both parties receive their 300 BC deposit back.


Alternatively, if you both agree to cancel the exchange, you can both decide to sign the contract and receive your money back.  If one of the two individuals decides not to complete their half of the transaction, they would lose the 300 BlackCoin deposit.

Contrary to what digicidal said, I believe both parties lose their deposit in that hypothetical scenario, but it should be a very rare one.  I believe the contract can be done in such a way that neither can contact the other once it's set up through to prevent extortion, but I'm not sure on the details.

There are also more complicated contracts you could do, basically whatever you could think of/program in/get someone to agree on.  Even with very basic contracts, you could make whatever stipulations you want, but leave the decision of whether or not to sign the transaction that concludes the contract up to human choice. More complicated contracts could probably complete contracts automatically if they can retrieve the necessary info, but again I'm not sure on how the programming could be executed in the blockchain.

CONFIRMED: Blackcoin listing on BTC38
http://www.dailyblackcoin.com/blackcoin-listing-btc38-com/

yellow coin pays 10% POS for 7 days only

How do i handle the -k parameter in my bat file when the pool switches to another x11 coin?
I understand for darkcoin it is -k darkcoin but wouldn't i need 10 bat files for 10 coins?

I look at the current charts and in my head I hear the Unreal Tournament announcer: "UNSTOPPABLE!"

two mobile apps done:

http://www.dailyblackcoin.com/blackcoin-multipool-app

how long do you estimate the rio phase will take, before starting to mine bc ?

right on soepkip !
Focus people. Time to spread the good word of coinkite.

BONUS PAYOUTS 16/04

http://pastebin.com/1iD6wrT1

14/04 + Geforce 750Ti coming
15/04 + Prize coming

I have 5x7970 (OC version from Gigabyte), and getting only 2,6MH/s per GPU on qubitcoin when darkcoin give me 1,3Mh/s
Is this normal? Scrypt algo give me 750Kh/s per GPU

I offer a 30 darkcoin Bounty to someone abble to fix my problem with my R9 290.

Summary: my cards started at 2.4MH/S and after 10 minutes they loose 10% and are stable at 2.1MH/S

This happened on all my cards, on all motherboards, under BAMT.

I noticed all the cards have the drop on the exact same second (on one motherboard of course).

I have 2 other cards on windows 8.1 that are stable at 2.5MH and from time to tim (this morning) I have the same drop (watercooling cards)

When the drop happened, the only way to recover the lost hash is to shutdown the machine (a mine restart did not do the job: I don't have higher hashrate)

If I put another card on the same rig, after 10 min, all the 290 will have a drop, and the other card (7950/270/7970) will not have any loss.

If I use thoses cards to mine Scrypt coins, no drop.

It seems to be scarily easy to freeze my whole Linux by experimenting with DarkCoin mining. (I have to go out to the garage and flip the power switch!)
These are my well established settings for the basic sgminer (git master) and the regular litecoin scrypt algo with the good old ckolivas kernel:


First note: Yes, I know that worksize will actually end up at 256 and LG at 2 but I keep these settings to see if a new sgminer version will actually use these and they don't make a difference now.

If I just simply replace the kernel with "darkcoin" then I get an instant crash.
I figured it out by trial and error that I must use lower intensities. But still, I can't reach a nice performance before I hit a linux-freezer wall with intensity or xintensity (higher values seem to grant me considerably more speed before the system goes dark).

Should I find the highest possible xintensity by trial and error method, or do I need to change something else?
I tried to set below-reference GPU and VRAM clocks, that's not the issue.
I tried ~1.5-2x higher TC values.
(And yes, I tried to set worksize to 256 and LG to 2, even if they end up at that in practice anyway.)


And how can this miner freeze my whole Linux OS anyway?
The basic sgminer or the original cgminer could never do that. I was always able to reboot through SSH, even if X crashed (for example, due to too high over-clocking attempts).