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241  Economy / Gambling / Re: BitCoin Multiplicator. Easy and 100 % safe on: August 10, 2013, 06:27:21 PM
As promised, my last attempt, combining both previous winnings:
https://blockchain.info/tx/7ecab92d7f10040ff364c42b13ca87b60c3f964f6ead5a6cc1e3fd1e887b98cc

The blockchain must really love me today.
242  Economy / Gambling / Re: BitCoin Multiplicator. Easy and 100 % safe on: August 10, 2013, 06:14:55 PM

Confirmed. https://blockchain.info/tx/ec39db5e10b8cf5d9fb1ad63142511d260269a3cf600f1a5357214d0dd344bb5

Will try one last time. Don't want to push my luck
243  Economy / Gambling / Re: BitCoin Multiplicator. Easy and 100 % safe on: August 10, 2013, 06:07:31 PM
Received 0.05 http://blockchain.info/tx/45dda268d11802db62ab89b588758185e85a0dd5710215a9407069644622dcbf

So I decided to play again:
https://blockchain.info/tx/7811812bf2d91ff5c11e647faff9f26097fabe77ae2f98c4f48948808a17db66

Must be my lucky day.
244  Economy / Gambling / Re: BitCoin Multiplicator. Easy and 100 % safe on: August 10, 2013, 05:54:34 PM
probably not u will get the early adopter winnings. Dont u know how scams work? What would be the point of a scam that reveals itself for $1 lol

Somebody once scammed me here already for 0.001 BTC. I know right.

Also https://blockchain.info/tx/73b94415237e8e4df4fed3f17b9774a02efe938d77ac45eb8b983b79950811c5

I think I win.

yes you won ... I am sending you 0.05 Btc Smiley congrats Tongue please leave positive feedback here ... when you receive money

When I receive it, I will confirm so.
245  Economy / Gambling / Re: BitCoin Multiplicator. Easy and 100 % safe on: August 10, 2013, 05:42:37 PM
probably not u will get the early adopter winnings. Dont u know how scams work? What would be the point of a scam that reveals itself for $1 lol

Somebody once scammed me here already for 0.001 BTC. I know right.

Also https://blockchain.info/tx/73b94415237e8e4df4fed3f17b9774a02efe938d77ac45eb8b983b79950811c5

I think I win.
246  Economy / Gambling / Re: BitCoin Multiplicator. Easy and 100 % safe on: August 10, 2013, 05:31:45 PM
Just for the hell of it, I am going to bet 0.01 BTC and we'll see if I lost a super high amount of $1 or not. (probably going to lose $1 to OP)
247  Local / Nederlands (Dutch) / Re: Bars die bitcoins accepteren in Amsterdam? on: August 10, 2013, 05:29:31 PM
Quote
Het zou niet de eerste keer zijn dat ik iets double spend (en ja, binnen enkele secondes. Transactie voor ontvanger zonder fee, en meteen een achteraan naar mezelf met een fee) en ja het is best makkelijk te doen, mits de ontvanger niet op confirmations wacht.

Maareh wat bereik je daar dan mee ?

In dit geval gratis eten en drinken.

Dan kun je ook gewoon eetpiraat worden. Geen BTC voor nodig, geen enkel geld zelfs. Cheesy

http://www.geenstijl.nl/mt/archieven/2013/08/eetpiraat.html


Ja, behalve dat je in dit geval de restaurateur niet oplicht.
248  Economy / Gambling / Re: What "system" is this guy using? on: August 10, 2013, 02:29:26 PM
Considered the possibility that he is a plain old gambler? And therefore he just does something and if he wins he continues.
249  Local / Nederlands (Dutch) / Re: Bars die bitcoins accepteren in Amsterdam? on: August 10, 2013, 02:26:24 PM
Quote
Het zou niet de eerste keer zijn dat ik iets double spend (en ja, binnen enkele secondes. Transactie voor ontvanger zonder fee, en meteen een achteraan naar mezelf met een fee) en ja het is best makkelijk te doen, mits de ontvanger niet op confirmations wacht.

Maareh wat bereik je daar dan mee ?

In dit geval gratis eten en drinken.
250  Economy / Gambling / Re: What "system" is this guy using? on: August 10, 2013, 02:11:30 PM
If coinroll would show more than five bets at once I might even look at it, but this is just a pain in the ass.
251  Economy / Gambling / Re: Bitcoin MineField - 10%-2300% winings, fully automated, with cool technologies:) on: August 09, 2013, 11:39:43 PM
site dead?

"the service is temporarily down
this is probably due to maintenance."

l2read
252  Economy / Gambling / Re: mutterings from mem: Provable Results vs Provably Fair on: August 09, 2013, 11:08:22 PM
For card shuffling you could let every user enter a client seed. Concatenate all client seeds alphabetically (to make it reproducible), add an own string and use this total as input for a (P)RNG; mersenne-twister for example

Then take a 52 card deck. Apply a shuffling algorithm to it with the chosen (P)RNG and for example the Fisher-Yates shuffle. Concatenate the deck (as in 2s8d9cJs....) and use some cryptographic hash on that string.

And how many people would be willing to do all this every time you got dealt a hand?

Remember, it's not just the hand you get dealt.  Then there's the flop, the burn card (generally not visible to the player), the turn, another burn card, and the river.

On each street, players are going to be dropping out.

You also have the fact that you don't get to see other people's hands unless they show down.  And nobody is going to want to play on a site where everyone knows every previous hand they have played and can basically completely profile them as a player.

And if you had read the thread you would've known this has already been pointed out.
Thanks for your completely useful addition!
253  Economy / Gambling / Re: mutterings from mem: Provable Results vs Provably Fair on: August 09, 2013, 03:43:13 PM
* Brilliant
* Lag and disconnects could be a problem. Suppose Alice, Bob, and Carol are playing a game and Bob suddenly decides to disconnect because he would rather pick lint out of his belly button. How are Alice and Carol supposed to finish the game without Bob's keys?
* There could be workarounds, but right now I don't know what they are.
* Something must be done. Rampant cheating in the online poker world is killing the game, which is a shame. Let's put our heads together and see what we can do.

Look further down on Wikipedia, it describes an option with 2 or more servers (then one is yours, the others are servers by random people willing to make your game more trustworthy). Or share the keys with the server. Or put a warning on screen: LEAVING WILL RESULT IN LOSS OF ALL CHIPS PUT IN BY YOU + A FINE. On leave: everyone gets their chips back. Losing persons chips get distributed to other players, when someone just made a huge raise and the person left, calculate a fine based on that (assuming the person left because of the raise). I do not suggest the last option.
254  Local / Nederlands (Dutch) / Re: Bars die bitcoins accepteren in Amsterdam? on: August 09, 2013, 02:54:55 PM
Volgens Coinmap.org is Stadscafe de Waag in Delft nog steeds de enige bar in Nederland die Bitcoin accepteert:

http://coinmap.org/#zoom=8&lat=52.321&lon=5.122&layer=OpenStreetMap

http://www.de-waag.nl/Stadscafe/Bitcoin

Of het wordt niet bijgehouden.  Roll Eyes

Was hier recent. Prima service en eten/drinken en zij accepteren al met 0 confirmaties (de Blockchain.info app besloot geen transactie kosten te betalen en het duurde meer dan een uur voor de eerste confirmatie; had dus kunnen double spenden).

Een coin double spenden is niet makkelijk hè. Bij langere tijd tot eerst conformatie wordt het makkelijker om een finney attack te doen, maar deze is alleen bij zeer grote transacties winstgevend omdat de kosten hoog zijn en hij is relatief moeilijk om uit te voeren. Het risico op een race attack wordt kleiner met de tijd, daar maakt de eerste conf dus niet voor uit, alleen de eerste paar seconden en je kunt hier je goed tegen indekken door met grote bekende peers te connecten en veel peers te connecten. Beetje kort door de bocht, zie voor meer info bijvoorbeeld: https://en.bitcoin.it/wiki/Double-spending.
Het zou niet de eerste keer zijn dat ik iets double spend (en ja, binnen enkele secondes. Transactie voor ontvanger zonder fee, en meteen een achteraan naar mezelf met een fee) en ja het is best makkelijk te doen, mits de ontvanger niet op confirmations wacht.
255  Local / Nederlands (Dutch) / Re: Bars die bitcoins accepteren in Amsterdam? on: August 09, 2013, 01:15:55 PM
Volgens Coinmap.org is Stadscafe de Waag in Delft nog steeds de enige bar in Nederland die Bitcoin accepteert:

http://coinmap.org/#zoom=8&lat=52.321&lon=5.122&layer=OpenStreetMap

http://www.de-waag.nl/Stadscafe/Bitcoin

Of het wordt niet bijgehouden.  Roll Eyes

Was hier recent. Prima service en eten/drinken en zij accepteren al met 0 confirmaties (de Blockchain.info app besloot geen transactie kosten te betalen en het duurde meer dan een uur voor de eerste confirmatie; had dus kunnen double spenden).
256  Economy / Gambling / Re: >>Insanity Dice<< Legit 60x2 [Great Specs] [Trusted Hosts] [Bils Paid Out] on: August 09, 2013, 12:24:47 PM
Do not worry the video will be uploaded by the end of the year.

6 hours until negative trust is being applied I guess.
257  Economy / Gambling / Re: mutterings from mem: Provable Results vs Provably Fair on: August 09, 2013, 07:39:26 AM

Never heard of this. Sounds like quite a challenge to implement properly. Putting this on my todo list to try to create a pokerroom that does this.
258  Economy / Gambling / Re: 3-6dice.com||0% House Edge||Real dice rolls||Play and Win on: August 08, 2013, 11:36:58 PM
Hmmm, thought: let's play 0.005 for him and send him the winnings to his Inputs.io account. Paid 0.005, won 0.008 -> nothing paid back?!

TX note: bcf03ff7da6eac3a61284c4e59f3d15e
TX id: io888e5bd6dff35f995be17ad9418fa4d5fa1f8f67d10b8fa7b8015cd3d3cbca
259  Economy / Gambling / Re: 3-6dice.com||0% House Edge||Real dice rolls||Play and Win on: August 08, 2013, 01:39:16 PM
Epic, got three 6's!!!

EDIT: I have no time to check the payouts (if they are correct) but it seems to me that you either get the same amount back (or 0.001 less) or you win WAY more. Are you sure you didn't make this in favor of the player (that the player has +EV)?

EDIT2: Found a bit of time.

Chance of winning at least your own bet back is 4/9.
So chance of losing is 5/9

So EV is 5/9*-.001+1/6*1/6*1/6*5*20*0.001+1/6*1/6*1/6*50*0.001+1/6*1/6*5/6*3*5*0.001+1/6*1/6*5/6*3*2*0.001
which is > 0 which means everyone should play right now.
WolframAlpha

But it has been a long time since I did stuff with odds calculation so this might be completely wrong.
260  Economy / Lending / Re: CoinLenders :: Get bitcoin loans, and get fee rebates on your deposits! on: August 08, 2013, 12:16:26 PM
why not make CL and inputs.io the same site?

Because that makes no sense at all.
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