Bitcoin Forum

Hey all,

I am offering the world's first bitcoin scratch cards.

Now beta testing at: http://bitscratchers.com/

Also selling the framework for BTC2 which includes free updates.  The price for the framework will go up as more features are included.

Current odds:

40% chance to win a prize.

Max prize is 100x buy price.

Now provably fair!

i would be willing to beta test this when its up an running :)

This would be of interest to me depending on the odds of winning. If the odds are like the regular scratch ticket lottos then I'd be less interested.

Multiple bet sizes would be a must too. Perhaps tickets from 0.0001 to 0.1 or higher.

If you can manage it as well, try to work around the idea of an email being required. Perhaps you buy the ticket on site, and it automatically shows your ticket for you to scratch. If you win, then your payment must be confirmed before you send it out.

If you want a tester , you can PM me  :D

would love to help test. the more incentive offered, the more advice i will give :D i know what people here like

I'm interested in this project too, if you need a beta tester call me with a PM ;)

I am willing to test this out. I'm something of an expert with scratch games. You can count on me.

I can also test it, but for free :P

I will write a review in exchange for a free test. Just PM me :-)

You guys- I'm pretty certain they are asking if people would be interested in the game- not who wants free tests and incentives.

I think it's a great idea, if you do it properly. Multiple bets, good provability fair system, reasonable odds. Those kind of things.

I would be interested in the game if there will be free tests and incentives :-)

All this incentives got my attention.  I will join also.

Let see how will it be done, subscribed to future movements :)

I would love to be a beta tester  :)

Okay guys, I have a test scratcher up here: https://bitexpress.co.uk/scratcher/card.php?id=test

It always wins. 

I just about have the complete purchase code done, and then I will sell actual cards.

Did somebody say free bitcoin. Of course I'll test your site.

The test does not actually pay out.  If you want to win actual bitcoins, you can buy tickets here: https://bitexpress.co.uk/scratchers.php

Giving away the following tickets:

https://bitexpress.co.uk/scratcher/card.php?id=promo1

https://bitexpress.co.uk/scratcher/card.php?id=promo2

https://bitexpress.co.uk/scratcher/card.php?id=promo3

Scratched them all no winners. Played 10 test tickets and no winners. What gives?

The test ticket is set to perma lose.  I have changed it so you can see what winning looks like, but you won't actually get any BTC

Too bad- I could've used that .7 :P

so uh do we atleast get thanks for testing your site for you?

Update: Now offering better odds and an integrated interface.  Address: https://bitexpress.co.uk/scratchers.php

Won 0.02, payment on its way and still not received after 5 minutes. expect to be instannt
Inputs TX: https://blockchain.info/tx/41e4c023070f7343aaacd177c9a7461761569a9cf5f6dcb046b6d09704bb637f
http://gyazo.com/df5aa032f2dd099ff56efbeda2b8f8ce

Received :)

No worries, it should be on its way.  It waits for a confirmation before sending the winning payment, so its a bit slower that Satoshi Dice.

Mind I ask what is the EV of this game?

50% Chance of winning.

20% Chance of prize being 1x your payment.

40% Chance of prize being 2x your payment.

35% Chance of prize 4x your payment.

5% Chance of prize being 20x your payment.

Great! I just send some BTC to the given address, pressed on play and then I got that error message. I demand a refund of the 0.01BTC I send you, if you cannot fix it.
The address I used to send it: 1Se3sWQbpaAL6GVVZieeZiPFXancAnMhq (http://blockchain.info/address/1Se3sWQbpaAL6GVVZieeZiPFXancAnMhq)
The address I had to send it to: 1A5kFpBsLPaDHY8CQTBT5JLKhTgZfeJDFd (http://blockchain.info/address/1A5kFpBsLPaDHY8CQTBT5JLKhTgZfeJDFd)
The transaction ID: e39d83eabf763ac2d88cd45a38d979f1a000c0a78f8dd3236177007662da23b3 (http://blockchain.info/tx/e39d83eabf763ac2d88cd45a38d979f1a000c0a78f8dd3236177007662da23b3)

My apologizes.  I was updating code.  I will PM you a link to the ticket.

I got it. Thanks dude!

Yeah I won! Now let's see how long a payment takes ;p
EDIT: Received (more or less). Nice game :3
EDIT 2: That will take forever to confirm  :o

UPDATE:

Increased max prize to 100x payment amount.

Now including minner fee, for faster payouts.

Great game, so we could send anywhere from 0.01 to 1 BTC?

Thanks, and yeah, though I may change it once I have a big enough bank to support more.

Pay outs for this game don't confirm, and odds aren't anywhere near what OP has listed.

Sorry, there appears to be a double spend on some inputs to the address.  Once it clears up I will make sure payouts have went through.

The odds are correct, you must have just been unlucky.  ::)

It might be smart to create a provability fair system, so people know / can check that everything is correct.

Yeah, until then you can't prove to anyone it's actually fair  ::)

I've quoted the odds OP lists so he doesn't change the post. 

[     50% Losing     ]
In that 50% of winning
20% => 1x (10%*1)
40% => 2x (20%*2)
35% => 4x (17.5*4)
5%  => 20x (2.5%*20)

170% EV. Nice Deal, so what is the new paytable!

Great, but the last time I've seen wrong fees and promised returns like that it was Casinobit...

Casinobit got nothing wrong, except he intentionally turns his investment to a ponzi. At least I got paid once here :)

huh?  
1.  Casinobit was sending the wrong fees or no fees then ignored the fact that his thing was messes up.
2.  You also got paid from Casinobit at least once according to your post.  I can dig it up if you like.

*and there :)

my transaction received from CB are fee-less, Yes. Mess up thing is a shabby developer would always do
EDIT: (I did some too, like forgot to escape my PHP MYSQL stuff, and i paid and bribe that guy in return. Ouch~)

Wait, so I am losing money with those odds...?  I am not good at odds.  At all....

EDIT:

I have edited the odds slightly to give me a better edge, since before it was impossible to make money. 

Update:

Moved to a new site: http://bitscratchers.com/

The prize payment is also automatically sent to the input address, so no need to enter your address anymore.  (Like Satoshi Dice)

Also everything should run much smoother now as I have simplified the code greatly.

Update:

Improved player odds from 33% to 40% to win a prize.

Added simple provably fairness!  The sha256 of a string which contains whether the ticket is a winner or loser is now displayed before paying for the ticket.  Once you finish scratching the ticket the string is displayed in the winning or losing message.  Simply sha256 the string in between the [] and check that it matches the fairness sha256.

Hi, i try bitscratchers.com and send 0.01btc on 13283hnZUgMbpxZ1J8m6K9i4LKzGtGcEGT. Transaction have 17 confirmations, but i dont see anything... still grey screen.   ???

I have PM you regarding this.

It works. Thaks.

How much for the scatch lotto code? And is it every thing I would need to run the game?