[ANN] CrackTheWallet - BTC/LTC/DOGE Progressive Raffles - page 2.

pavlin99th

newbie

Activity: 44

Merit: 0

Round updates:

approx. 150 blocks till drawing, which will occur on BTC block #300500 (~1 day left);
5 tickets sold;
0.0717372 BTC prize pool.

https://crackthewallet.org/btc/raffle/
Tickets start at 0.001 BTC

Simple math shows that this is actually a +EV game.
Say there are 6 tickets, single ticket has 1/6 chance to win 1st place (50% of prize pot), 1/6 for 2nd place (20%), 1/6 for 3rd place (10%) and 3/6 for loss.
Even at 100 tickets it is +EV. Because prize pot is progressively increased with each sold ticket.
You can also increase you win chances by buying more nonces.

Don't miss the chance, join the raffle!

pavlin99th

newbie

Activity: 44

Merit: 0

Quote from: FFrost on May 09, 2014, 07:11:59 AM

Now that is a Longtime I thought 24 hrs was. Only got bitcoin but wanna play the raffle Huh

Then consider BTC lotteries. I decided not to call them "instant" (like LTC versions), because BTC confirmation times can be "very not instant".
These lotteries results become available as soon as your transaction gets the 1st confirmation.
And of course they are provably fair - they use block's Merkle root hash, which is unknown until the block is generated.
https://crackthewallet.org/btc/

Tickets are 0.01-0.64 BTC and 0.001-0.064 BTC in mini version. 1st ticket is demo play: try, see results, withdraw back.

FFrost

full member

Activity: 224

Merit: 100

Now that is a Longtime I thought 24 hrs was. Only got bitcoin but wanna play the raffle Huh

pavlin99th

newbie

Activity: 44

Merit: 0

Quote from: FFrost on May 09, 2014, 04:08:16 AM

I'm deciding whether to play the raffle or the lottery. The raffle seems a bit long why changed to 100 blocks?

You mean 1000 blocks. Because daily rounds were not getting many players. Current round will end in approx. 4.5 days, on block #300500.
The 5th DOGE round is going to end soon, tickets start at 10 DOGE - you may try this (https://crackthewallet.org/doge/raffle/)
DOGE blocks have period of 1 minute.

FFrost

full member

Activity: 224

Merit: 100

I'm deciding whether to play the raffle or the lottery. The raffle seems a bit long why changed to 100 blocks?

pavlin99th

newbie

Activity: 44

Merit: 0

Quote from: FFrost on May 09, 2014, 02:06:48 AM

Is the lottery offer still on?

Yes, be the first and share your results

FFrost

full member

Activity: 224

Merit: 100

Is the lottery offer still on?

pavlin99th

newbie

Activity: 44

Merit: 0

The 4th and 5th rounds results:

round 4: 6 tickets, 0.08343 BTC prize pot, payouts: 0.041715, 0.016686 and 0.008343 BTC;
round 5: 6 tickets, 0.073686 BTC prize pot, payouts: 0.036843, 0.0147372 and 0.0073686 BTC.

2-3 people actually competing between each other for the 1st, 2nd and 3rd place.

Next round is running now, it is set for 1000 blocks (approx. 7 days), drawing will occur on block #300500.
Prize pool is 0.0717372 BTC now, there are 5 tickets now.

Join the game, odds are good for 0.001 BTC tickets.
https://crackthewallet.org/btc/raffle/

Good luck!

pavlin99th

newbie

Activity: 44

Merit: 0

Stats for previous 3 rounds:

Blocks	Prize Pool	Tickets	Nonces
298751..298900	0.05000000	0	0
298901..299050	0.10410000	1	4
299051..299200	0.11715000	5	15

All users have claimed their prizes:

round 2, 1st place, 0.0041 BTC ticket, 0.05205 BTC payout (x12.7): https://blockchain.info/tx/178a371026ce29fe71a7610eec70dd91877e78763c9fa66af333810693e5d628
round 3, 1st place, 0.004 BTC ticket, 0.058575 BTC payout (x14.6): https://blockchain.info/tx/a21de9bca651ad66afb08352190dcbd22c28e2886240e09d28f5449ea3ec358a
round 3, 2nd place, 0.0041 BTC ticket, 0.02343 BTC payout (x5.7): https://blockchain.info/tx/2929f103166437fcad079a3768ba6e935bccee59ef6e69db8657d57f2258c83a
round 3, 3rd place, 0.005 BTC ticket, 0.011715 BTC payout (x2.3): https://blockchain.info/tx/f14490eba3ac70b55caf875681700b457d5f86ec9ceb5d2ae805d7fef12595ba

The 4th round is in progress, automated drawing will occur after block 299350 is mined.
4 tickets sold at the moment.
https://crackthewallet.org/btc/raffle/

Play and/or share the link, more tickets - higher prizes.

Good luck! Wink

pavlin99th

newbie

Activity: 44

Merit: 0

The 3rd BTC round is over. Five tickets were sold.
Drawing results are available in archive page.

Hashes can be easily checked:
the last block was 299200 and its Merkle root hash is 31292999c57190bda61905af31a2835fce30d4a4fe8480638c9ed80cc0e8d60f
(https://blockchain.info/block/000000000000000057cf6671e1b4b9f6e8e77072aaf4ae89142079fd66e78af1)
The lowest hash can be computed with this python script:

Code:

from hashlib import sha256
txid = '__your_txid_here__'
nonces = 10
mr = '__merkleroot_here__'
best_hash = 'f' * 64
for i in range(1, nonces + 1):
    h = sha256((txid + str(i) + mr).encode()).hexdigest()
    if h < best_hash:
        best_hash, best_nonce = h, i
print(best_hash, best_nonce)

Script can be executed online at http://www.compileonline.com

The next round is in progress...

Good luck!

pavlin99th

newbie

Activity: 44

Merit: 0

The 3rd round will end soon. Four tickets sold.
Don't miss the chance to bet 0.001+ on 0.11315 BTC prize pool.
https://crackthewallet.org/btc/raffle/

PS: There are also LTC and DOGE versions, tickets start at 0.01 LTC and 10 DOGE.

Good luck! Wink

pavlin99th

newbie

Activity: 44

Merit: 0

The second round is over.
Single ticket was sold… and was the winner of prize pool's 50%.
User bought ticket for 0.0041 BTC (don't know why he added 0.0001) and won 0.05205 BTC.

The next round is in progress now.

pavlin99th

newbie

Activity: 44

Merit: 0

Quote from: Farmer17 on May 03, 2014, 05:58:33 AM

Quote from: pavlin99th on May 03, 2014, 05:26:23 AM

150 blocks have passed and the first round is over. Zero tickets were sold. Embarrassed

I believe the big problem here is trust.

Yes, I hope with time and positive reviews from the first brave players it will start to build up.
There are some positive feedbacks in litecointalk thread (https://litecointalk.org/index.php?topic=15126.0)
The most important positive feedback was from the winner of the 1st LTC contest (he risked 100 and won 177.58 LTC):
(http://www.reddit.com/r/litecoin/comments/1zs6mo/cracked_the_wallet/)

Quote from: Nobitcoin on May 03, 2014, 06:08:16 AM

So if I buy a ticket and no one else but me has bought one I can still lose?

Three tickets with lowest hashes win. There is no limit on number of sold tickets.
One ticket - player will win the 1st place. Three tickets - all will be winners. Four tickets - 3 winners and 1 looser, and so on…

Good luck!

Nobitcoin

legendary

Activity: 966

Merit: 1000

In holiday we trust

So if I buy a ticket and no one else but me has bought one I can still lose?

Farmer17

hero member

Activity: 674

Merit: 500

Quote from: pavlin99th on May 03, 2014, 05:26:23 AM

150 blocks have passed and the first round is over. Zero tickets were sold. Embarrassed

I believe the big problem here is trust.

pavlin99th

newbie

Activity: 44

Merit: 0

150 blocks have passed and the first round is over. Zero tickets were sold. Embarrassed

According to the rules 0.05 BTC moved to the next round, which now has initial prize pool of 0.1 BTC.

pavlin99th

newbie

Activity: 44

Merit: 0

The similar first LTC raffle round has just ended. Were only 3 tickets.
You can see how the round's results look like here: https://crackthewallet.org/ltc/raffle/

pavlin99th

newbie

Activity: 44

Merit: 0

Quote from: Nobitcoin on May 02, 2014, 05:53:49 AM

So the maximum win I can get is half of the prize pool and half of all the entries?

You can have three winning tickets - 80% of prize pool (initial + all entries).

Nobitcoin

legendary

Activity: 966

Merit: 1000

In holiday we trust

So the maximum win I can get is half of the prize pool and half of all the entries?

pavlin99th

newbie

Activity: 44

Merit: 0

There is new game now:
Progressive BTC raffle. Tickets from 0.001 BTC
https://crackthewallet.org/btc/raffle/

There are 5 rounds of 150 BTC blocks scheduled now. 150 blocks translate to 25 hours (10 minutes per BTC block). Prize pools are set to 0.05 BTC.
The first round will begin after BTC block 298750 is generated.
All BTC coins from sold tickets are added to round's prize pool. More tickets - higher prizes.
Guaranteed three winners in every round. Payouts are 50%, 20% and 10% of prize pool. What remains goes to next round.
If you like the game, please share.

Good luck!

Quote from rules page:

This BTC raffle (like everything on this site) is:

Anonymous and secure: no registration, personal unique secret URL, HTTPS protocol.
Provably fair: no server secrets, just public blockchain hashes, easy to validate.
Unpredictably random: will use future BTC block's data, can't be predicted.
Fully automated: no humans involved, instant payouts.

The Rules:

Prize pool is seeded with initial amount selected by organizers. All coins from sold tickets go to prize pool progressively increasing it.
Every raffle round has a defined range of BTC blocks. Round is in progress while these blocks are being generated.
Your ticket buys you nonces. Single nonce costs 0.001 BTC. This is the minimal ticket price. Any number of nonces can be bought with single ticket. You can buy multiple tickets.
Drawing will occur after the last block is generated. The lowest hash for each ticket is calculated using nonces:
sha256(txid + nonce + merkleroot), where:
- txid - your ticket's transaction id,
- nonce - takes integer values from 1 to number of nonces bought with the ticket,
- merkleroot - Merkle root hash of the round's last block.
Three lowest hashes win 50%, 20% and 10% of prize pool. Remaining prize pool amount goes to next round.

The Notes:

Use your unique URL to access the raffle. Keep it secret and do not share.
No sending wallet limitations, buy ticket: from personal or shared wallet, from yours or friend's wallet, by direct withdrawal from exchange or other services.
Withdraw winnings to any address you specify. Automated, no fees, no commissions.

Topic: [ANN] CrackTheWallet - BTC/LTC/DOGE Progressive Raffles - page 2. (Read 4116 times)