Bitcoin Forum

This is a test run to show everyone how it works, and illustrate the benefit over a regular lotto.

This is not a real lottery.  No money required to play.  Please play so that I can judge how things would have gone.

Here's how it works:

1) I've chosen a random seed to be entered here:

http://www.random.org/integers/?mode=advanced

under the "pregenerated seed".  It's between 1 and 100 (inclusive).
The SHA-256 hash of the seed is: 627c22822c1dee884411b8f3a09b8545616bcf9837f080a6df26704f604b6d0d

2) You pay 1 "fakecoin" to enter, and PM me your guess.  1 guess per fakecoin.  I add this to the pot.

If you guessed correctly, you get 80% of the "fakecoins", 1% will go to me, and 19% will go into the next pot.  Otherwise, I post your guess on the "Failed guess" section and update the jackpot.

Current Jackpot: 34 fakecoins
Chances to win: 1/71
Failed Items:

• 1
• 2
• 3
• 5
• 7
• 11
• 13
• 14
• 17
• 19
• 22
• 33
• 41
• 44
• 50
• 55
• 66
• 77
• 88
• 91
• 92
• 93
• 94
• 95
• 96
• 97
• 98
• 99
• 100

Ok, for 1 fakecoin I guess 50

So, basically what to do is guessing a number in the interval (1,100) and the (unsalted) hash of the solution is already given ?

The unsalted hash of the seed for the solution (as per random.org) is given.

Yup, that way I can reveal the seed at a later point, so you can see the winning number.  You'll also be able to verify that I didn't change the seed, because of the hash I posted above.  BUT, you can't cheat and find the result beforehand.

Yeah but I thought the seed is inside the interval (1,100), isn't it ?

No.  Go to http://www.random.org/integers/?mode=advanced

The random NUMBER generated BY the seed is between 1 and 100.  The seed is just kind of a "password" to make sure you always get the same random number.

Seed -> SHA256 -> hash I posted above.
  V
Random.org
  V
Answer you're trying to guess

Oh, now I see.

Well, until I found an adequate sha-256 rainbow table, I guess I'll take Number 55.

Ill take

Choice: lucky 13
Size: 1 fakecoin ( http://bitcoin.org/fakecoin )

Keep it coming, the jackpot's only growing. =)

The cool thing about this system is it can continue in perpetuity.  Since 19% of the coins are kept in the jackpot to convince people to keep playing.

Just found another fakecoin in my wallet.
66

22 for me please

why not spending a coin on 77.

This might be more successful with a smaller range (1-10, or 1-20) etc.

and another one - 88.

Starting to heat up, the pot is now almost 3 times what it started as. =P

I feel generous  :P

Five fake-coins go to 2, 5, 7, 17 and 19.

Geez, I can't afford much more. I'll take 41 and 14.

I'll spend 10 coins on 91-100 (inclusive)

instead of adding 14 and 41 you added 14 two times to your list.

anyways, I take number 1

1 fake coin for 33

Woops, didn't check the forums for 2 days >_>

Also, if I were to run an actual microlotto, this would all be automated, so you'd know if you won or not right away ( which would make it a bit more addictive, me thinks ;) )

44