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381  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |Game 1|Round 2|Prog Jackpot 2.9999| on: April 18, 2014, 02:05:51 AM
Thanks Dabs for the insights!

I'll replace the random string generator by the "Little Bit at a Time" hourly secrets, so when the last ticket bought (tenth ticket) is confirmed we add the next/following (future) hour secret to the "calculation". That way we'll be able to draw more than once a day and still stay true to the Provably Fair "philosophy"!

OP updated.

2nd Round is now running.

Enjoy everybody!
382  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 16, 2014, 06:31:13 AM
Why the past? The current game should get it from a future date, so no one (not even the house) knows who will win until the draw. Otherwise, someone will game your game... you know, and win all the time.
In fact, when I said "past", I meant the "other two modes" of string generator available at random.org as explained here: http://www.random.org/faq/#Q2.6

You used one mode at you lotto ("Using pregenerated randomization from date") and that's what I am using here right now.

As they mention:

Quote
The other two modes allow you to select a pregenerated randomization, which means that your numbers or strings will be based on randomness generated by RANDOM.ORG some time in the past. These modes allows you to replay a given sequence of numbers at a later stage, and allows multiple parties in different locations to get the same numbers in a predictable fashion. These modes effectively turn RANDOM.ORG into a pseudo-random number generator.

P.s.: I'm thinking about using the third mode ("Using pregenerated randomization based on persistent identifier"). Maybe the identifier might be my secret for each round...

A better approach (for multiple draws per day) might be replacing the string from random.org by the following/next secret revealed at "Little Bit at a Time" after the tenth (last before draw) ticket bought (and confirmed) here.

I guess I'll go for that way in order to maintain a good scenario of Provably Fairness...

What do you think about it?

Note: Gentlemen, I'll release 2nd round in a few hours after thinking a bit more about this "random stuff" and Provably Fair dilemma.

Thanks in advance for comprehending.
383  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 16, 2014, 01:58:29 AM
Round 2 starts in a few moments.

P.s.: I'm looking for a way to generate a random string from www.random.org (or similar site). I'm searching for a mode that allows me to select a pregenerated randomization based on randomness generated some time in the past so others will be allowed to replay a given sequence at a later stage, and multiple parties will be allowed in different locations to get the same string. I want a pregenerated randomization in order that handles more than 1 draw a day.

Contributions and ideas are apreciated!
384  Economy / Service Announcements / Re: [ANN] bitaddress.org Safe JavaScript Bitcoin address/private key on: April 15, 2014, 09:16:21 AM
Shamir's secret will be an excelent upgrade to this (already) good tool!

Keep up the good work!

Cheers!
385  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 15, 2014, 08:04:04 AM
-=[ GAME #1 | Round: 1st | Jackpot: 2.9999 BTC | Status: Draw ]=-

High Stakes Bitcoin Raffle Lottery Secret: fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bf

Random.org's Random String: S1MP6CI63V9eRJgUApCf

Draw method (players' tickets): sha256sum(TXIDSECRETRANDOMSTRING)

Draw method (house's tickets): sha256sum(HOUSETICKETSECRETSECRETRANDOMSTRING)

Code:
-=[ TX ID ]=- -=[ CONCATENATION ]=- -=[ CONCATENATION SHA-256 Hash ]=- -=[ BTC ADDRESS ]=-
3709a7b740da637d631eff4887c0a72e65a7ee58fe1f37f364c6ff9edc6c8e84 3709a7b740da637d631eff4887c0a72e65a7ee58fe1f37f364c6ff9edc6c8e84fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 126c9464aa57e9706128a48abdc089da78e5f1ca0e4f64301d66444731aa794c House
e62554fb9d16817495e3d5254c912fe9eed90c552d9cc332dda76cfd73e384ca e62554fb9d16817495e3d5254c912fe9eed90c552d9cc332dda76cfd73e384cafe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 1afd573df32903560d5eea5c831b6dbd5ba0bd358c61b36c740c571b4ec65348 1LiJd5YSNTph5YTcjH5rmzsR2bqiVzZvHo
4df08d9824fcc44f03084e18652488a2cf7c4f5e9226e10d43b3e145b136973c 4df08d9824fcc44f03084e18652488a2cf7c4f5e9226e10d43b3e145b136973cfe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 40c1fb79236427ac60a8002afe846ed233c87c5ef06d469a48fddfc9a41a779d 1AvruvZqSuuKnQhwMSrzZLwhxRS6u88BbY
fbef6962a3422bb00f23bf4e4a6beb53dba9ea69a4451309868a84c7e4755293 fbef6962a3422bb00f23bf4e4a6beb53dba9ea69a4451309868a84c7e4755293fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 52078e32416fe3981e29656e01ccc24bebea92f19313f44c0452897adf3a98ce 1GB4shV2VDF8pX4fFVQZm4Ub1SYEZZ6pEr
e6ce0c6aa8a25eeb29f713e35e8ce4cb47a3d263f852153c876588ad512cbf1d e6ce0c6aa8a25eeb29f713e35e8ce4cb47a3d263f852153c876588ad512cbf1dfe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 5545b2a9313e29234d1e4ff025c18260e6ac91b09f33ca78c016cd5f0c33519d 16bVw77VPXYJ9K7A94wcESp96hAxQa3Hxe
3376cc47953ad1f41acde1f287e3d2c9b22b3f24fe03baa109cfc67980c7893b 3376cc47953ad1f41acde1f287e3d2c9b22b3f24fe03baa109cfc67980c7893bfe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 60b77c44807bb314cce1a8fd1a1dbec49ab8401953f4365b1f139776d25f4140 1HTfhVz8eUVRWfKYuHoAp4yXp93cywuGKX
bb379c4e1657cee13bb7129a429a23ae1caee0e3089b0505fbdfc0e6f35e53e0 bb379c4e1657cee13bb7129a429a23ae1caee0e3089b0505fbdfc0e6f35e53e0fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 62811057d59d3cbff68edcd48662dd71ac46e3feebf49e8f106d0451d84ba4fd 1P3jPFMph84ksqEeZXYghyWm8tnnmbUwWV
cd9561762a0536367ec108a0dbd66c44449bfa6eb9c1b15c18f0b0c4a38a954c cd9561762a0536367ec108a0dbd66c44449bfa6eb9c1b15c18f0b0c4a38a954cfe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 65f9db2435ff21fb2cd08ac1aa241d083aca45b7aaad6544583f6ae043eb24f2 House
45acb995d2190572f6954a0a40c50b1244cb813f9b8fccdc703619ead63c20d8 45acb995d2190572f6954a0a40c50b1244cb813f9b8fccdc703619ead63c20d8fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 6a4fa49ce95a18700323a6c721216fab4b4987f4e3cfd960c5d412382105107e 1MjqExAGpA7Zyf3A3AeS31GTnf6tBpvzA
f57a0c1fc7c6d7718629fd6ad58c220a702f777fae731529078bfe418db9d45c f57a0c1fc7c6d7718629fd6ad58c220a702f777fae731529078bfe418db9d45cfe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 8b1f8078339f8588cc12d48e5a043605c69d026e1c4581662b21ee7c3e2b7d78 House
d24d130403674790d19ec1436e6e1b3afba1f438b8ab549d14df80402118db0d d24d130403674790d19ec1436e6e1b3afba1f438b8ab549d14df80402118db0dfe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf 938599b26b00361af2395c5935d123ec5e16777d6a21e11219c212d4e36b9ed7 House
0003e2fac24e7d014c64a36677dcf4cef09f5e8482c4cc502cc3c99934f0d666 0003e2fac24e7d014c64a36677dcf4cef09f5e8482c4cc502cc3c99934f0d666fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf a5556dd74199406ac62b08bd7d1a4080d3b67781b59e09cde3be41befaa734d7 1ABqaCx65K4Rk3yxd7V68xbtfaWCZbb5WQ
fa6471a9a20aba456fa1db87ee3be1d52f64b0ddd872430a4ef762c4913077b0 fa6471a9a20aba456fa1db87ee3be1d52f64b0ddd872430a4ef762c4913077b0fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf c711f6bb17c18c7ee87749dec209575d3c6c6daca915da70838a1d00b17b75c5 House
3c89d2338206b89c7b2abc25bd564d140b04ff4cc1d100421af933f0d4c21f01 3c89d2338206b89c7b2abc25bd564d140b04ff4cc1d100421af933f0d4c21f01fe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf e211e6fc13db0e56ec20dd1d98baccf85ad3e072350b749e720f868004b0f791 1BP9WY4BM1ndiPASHdk4oayfikZae2igB9
7810668b78dafb7acbb177bc8e2b50d80349dfde3ef7add4b8f58c1d8bc55d5a 7810668b78dafb7acbb177bc8e2b50d80349dfde3ef7add4b8f58c1d8bc55d5afe7fe123c946075ed7e426b963283e1feb76e1bd8313236777364aefff9902bfS1MP6CI63V9eRJgUApCf e25c8a156f55c59269bdc03a77b5141e1271079c51a0e0758a85a6d6e7f109d2 1AQLR7DekpLAQb3rurhwd9jQKpK2jAhHAf

The winner is the hash with the lowest value (starts with the lowest numbers left-to-right).

Hash: 126c9464aa57e9706128a48abdc089da78e5f1ca0e4f64301d66444731aa794c

A house ticket has won this round, so all pot rolls over to next round.

2nd round starts with 2.9999 BTC worth of jackpot.

2nd round is gonna start soon... (please, do not send any coins yet)

We're setting things in order to run all the process a little faster...

Thank you all who joined this amazing innovative experiment!
386  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 15, 2014, 05:49:10 AM
Greetings Gentlemen!

This 1st round is over.

10 tickets bought from the following tx:

Code: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The 5 house tickets' secrets/seeds for this round are:

Code:
d24d130403674790d19ec1436e6e1b3afba1f438b8ab549d14df80402118db0d
fa6471a9a20aba456fa1db87ee3be1d52f64b0ddd872430a4ef762c4913077b0
3709a7b740da637d631eff4887c0a72e65a7ee58fe1f37f364c6ff9edc6c8e84
f57a0c1fc7c6d7718629fd6ad58c220a702f777fae731529078bfe418db9d45c
cd9561762a0536367ec108a0dbd66c44449bfa6eb9c1b15c18f0b0c4a38a954c

We are commencing draw right now.

Expect results in a few moments...
387  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 14, 2014, 02:19:25 PM
The guarantee for each round is 1 BTC and has been sent to escrow as shown here: https://blockchain.info/tx/d6cb01d6d9f634282482330d14cb9b99cb3fd83b0fcb62b739c6914ea369406a

So the 10 (ten) entry tickets are now guaranteed for every round as long as that value remains at that bitcoin address.

Thanks Dabs for the help and for offering a professional service.
388  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 13, 2014, 03:18:47 PM
What do you mean by "No escrow supported"

Simply give one BTC to an escrow and if you run away , all the BTC will be guaranteed back.

Currently , you have a huge claim , but you could just steal 1 BTC.

The 1 BTC can stay permanently with the escrow , for as long as you are running this and it would not affect the outcomes of this game in any way.
We're working to have an escrow for the first (at least 10) games.

What I said is that due to the progressive jackpot nature of this experiment, It's difficult to run the whole process with (a dedicated) escrow.

But we're gonna try to send each round 1 BTC as players' garantee.
389  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 13, 2014, 02:15:15 PM
Didn't understood the math. 85% of 10 BTC = 8.5 BTC
You're right. I missed (the players) 1 BTC.

Quote
I think you didn't get my point.

ok, now I see that will be house tickets in the initials rounds. So lets do the math again:

You are giving 9 BTC for the first round, so, if I send 1 BTC and I win (66% chance), I will receive 8.5 BTC, if the house win the amount will be available for the next round.

so I will send another 1 BTC for the second round, the total jackpot will be 11 BTC, if I win (76.92% chance) I will receive 11 - 0.5% = 10.945 * 85% = 9.30325 BTC. if the house wins, supposing you will get the house rake from the total jackpot, 10.945 will be available for the next round.

so I will send another 1 BTC for the third round, the total jackpot will be 11.945 BTC, if I win (0.8333%) I will receive 11.945 - 1% = 11.82555 * 85% = 10.0517175 BTC. if the house wins, supposing you will get the house rake from the total jackpot, 11.82555 will be available for the next round.

And on the forth round, as this round will not have house tickets I will have paid a total of 4 BTC and will receive a total of 10.68368315 BTC.

Still easy money.
You understood the game well.

But do not forget: you're gonna compete with other players as well...

The full pot is just a "1st game promotion" and it's a contribution from the project's sponsors.

BTW, for this experiment to last longer, I'm thinking about splitting the 9 BTC within 3 games.

[Update] So we did it that way... so not only this 1st game gets +EV but also those yet to come...
390  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 13, 2014, 08:12:12 AM
If you are willing to send those 9 BTC to a trusted escrow to conduct this raffle, I will enter this drawing.
No escrow supported for this experiment yet, sorry.
391  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 13, 2014, 08:08:07 AM

HuhHuhHuh


Ok, I didn't read all your first post because it is really long. So forgive me if my questions was covered in it.

But this looks like too easy money, as far I could see, there will be 10 tickets of 0.1, so I just need to send 0.1 from 10 different address (1 BTC total) and I will receive 8.5 BTC (after the house rake). Am I right?


Another thing, I couldn't see the point of the house rake. on the first draw the winner will receive 8.5 BTC, on the second draw, the winner will receive 9.775 BTC, on the third draw 9.96625. As you could see, the winnings will tend to 10 BTC.
So, why the need of house rake?

If a house ticket is not chosen when draw, 85% (~7.65) goes to winner.

There's only one draw per round and only one winner per draw. And the prize is always 85% of jackpot.
392  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 12, 2014, 09:32:34 PM
Some coins have been promotionally added to the jackpot due to celebration of the first round of the 1st raffle game!

The pot turns the game massive +EV (Positive Expected Value) for players to bet.

Enjoy the bonus!
393  Economy / Gambling / Re: ♔ Bitcoin Forex Options Binary Trading | SIMPLE & EASY | Instant PAYOUT ♔ on: April 12, 2014, 07:43:21 AM
I'd suggest that when the close price remains the same as the entry price there is a PUSH and the money is sent back to bettor just as it works at Sports Betting.

As seen at your gambling site, the bettor loses his bet in that situation...

That's too painful! Undecided
394  Economy / Investor-based games / Re: Fucking Ponzi's and the idiots that buy into them + List of Shills on: April 12, 2014, 06:55:24 AM
Thanks for the warning.

Those annoying ponzi "games" are starting to get out of control... Undecided

They deny the very principle of what "Provably Fairness" is.

This topic (blacklist) should be sticked!
395  Economy / Gambling / Re: Hi Stakes Bitcoin Raffle Lottery |No House Edge|Prog Jackpot|Provably Fair| on: April 12, 2014, 06:26:45 AM
-=[ Updates & Stats ]=-

| Apr, 2014 | Number of Bets: 20 | Number of Winners: 1 | Total Wagered: 2 BTC | Biggest Win: 3.38298457 BTC | Total Won: 3.38298457 BTC |

2014-04-15: Game #1 | Round: 1st | Jackpot Roll Over | No Winner.
2014-04-25: Game #1 | Round: 2nd | Winner is: 15ieHJ7eK5gJ5dfeZiWCz5bGkFJS52Pomy | Congratulations!
-=[ ESCROW ]=-

The guarantee for each round is 1 BTC and has been sent to escrow as shown here: https://blockchain.info/tx/d6cb01d6d9f634282482330d14cb9b99cb3fd83b0fcb62b739c6914ea369406a

So the 10 (ten) entry tickets are now guarantee for every round as long as that value remains at that bitcoin address.

Thanks Dabs for the help and for offering a professional service.
396  Economy / Gambling / ฿ Hi Stakes BTC Raffle Lotto #1 | Jackpot 4.0 ฿ | No House Edge |Provably Fair ฿ on: April 12, 2014, 06:26:13 AM
-=[ High Stakes Bitcoin Raffle Lottery | Limited Tickets | Good Winning Odds | No House Edge | Progressive Jackpot | Provably Fair ]=-

-=[ Game #1 | Round: 2nd | Escrow: Available | Current Jackpot: 4.0001 BTC | Status: Over ]=-

High Stakes Bitcoin Raffle Lottery 64 Number Character Alphanumeric Secret, the SHA-256 Hash is: aec6a9ff8b868f3065face8de389a1f76b03dbda7af4e621a3d9aac97aeb199c

Bitcoin address for the current raffle: 1KCSsL7rRHH6qkRS5wSwWuzAcZ7zNYnNDg

Deadline: 1st confirmation (blockchain) of the 10th bet of .1 BTC sent to the address shown above.

Entry ticket price (bet): .1 BTC (ten bitcents)

-=[  What is this all about? ]=-

This is an experiment (that evolved from the essay that is shown here: https://bitcointalk.org/index.php?topic=409660.0) in order to study the effects of a game that is:

* Anonymous;
* Raffle lotto using bitcoins - Always a Winner;
* Transparent;
* Instant play (No Registration Required);
* Provably Fair (cheat proof);
* Cryptographically Verifiable;
* Blockchain Spamless...

and also:

* Limited tickets: people get better winning odds and probabilities;
* Progressive jackpots: "house tickets" win the game (some times) and roll over all the current jackpot to fill next round or game;
* The game becomes +EV for gamblers to play sometimes.
* and much more...

About Provably Fairness:

By using bitcoins for raffles several unique features are possible:

* The players identities are unknown but all the tickets are known;
* Every ticket purchased can be viewed by everyone along with the senders bitcoin address;
* Each ticket is permanent and can't be altered because it is stored inside the blockchain;
* The pot size can not be faked as anyone can check the lottery address and verify it;

Most importantly, it's impossible to manipulate who wins or fake a payment to the wrong person because:

* Each ticket has a unique number that is permanent (transaction hash);
* Using some block data and hashing with SHA-256;
* The transaction hashes stored in the blockchain are then used to calculate the winner in an impossible to predict way;
* A secret known only by me is hashed and published so I can not change the secret later;
* The secret is then published after the deadline;
* The winnings are then sent to the EXACT same address that bought the ticket.

All of this can be monitored and verified by anyone and is recorded in the blockchain.

-=[ How to play this Raffle Lotto? ]=-

To buy one ticket, send the exact amount of .1 BTC (ten bitcents) to the bitcoin address shown above.

P.s: you may use the following bitcoin wallet software: Bitcoin-Qt; Electrum; Armory; MultiBit; Hive. For web wallets we recommend only using Blockchain.

DO NOT use wallets from exchanges nor any shared wallets such as localbitcoins, mining addresses etc.

The prize will be sent to the same address that previously sent the coins from (in order to avoid fraud). If sent from more than one address, the prize will be sent to one of them.

All payments received prior to deadline is part of the raffle's jackpot.

Payments sent after that deadline will be refunded to the same original sent address (a tx fee of .0001 BTC will be deducted) after the draw.

-=[ Technical and operational details ]=-

This game consists of 4 rounds;

Current entry bet is .1 BTC (ten bitcents);

There are Limited tickets: 10 tickets currently. Players get better winning odds and probabilities;

Max number of players tickets: 10 (ten).

There are "House Tickets" and Progressive jackpots: "house tickets" win the game (some times) and roll over all the current round's jackpot to fill next round or game. House tickets never get the prize just roll it over to next round's jackpot.

1st round: there are 5 house tickets - Total tickets (players + house) = 15;

2nd round: there are 3 house tickets - Total tickets (players + house) = 13;

3rd round: there is 2 house ticket - Total tickets (players + house) = 12;

4th round: no house ticket available - Total tickets (only players) = 10.

P.s.: all house tickets are created hashing pre generated secrets with High Stakes Bitcoin Raffle Lottery secret and the following/next secret revealed at "Little Bit at a Time" right after the tenth (last before draw) ticket bought (and confirmed) here. You can verify their fairness too. Those tickets' secrets are not generated as transactions but you may see and verify all of them (SHA-256 hashed) here: http://pastebin.com/duibPqdB

If a player's ticket is chosen instead of a house ticket in any round, the prize is paid to that player and the raffle starts from 1st round.

Drawing: after the draw all tickets and their hashes will be posted along with the winner.

The player will have the secret by then and will be able to compute for his own ticket.

Here goes how I will compute your hashes - and you'll be able to verify it by yourselves:

1. Get your Transaction ID;

2. Get the secret revealed here for each round;

3. Get the secret revealed at lbaat.net (and published here afterwards) for each round;

4. Concatenate them (generating the tickets) and Hash them together (TXID&SECRET1&SECRET2) as one string;

5. Sort the hashes;

The winner is the hash with the lowest value (starts with the lowest numbers left-to-right).

Secrets to be used:

High Stakes Bitcoin Raffle Lottery 64 Character Alphanumeric Secret: the SHA-256 Hash is shown above;

"Little Bit at a Time" Secret: will be the following secret revealed at https://lbaat.net right after the tenth (last before draw) ticket bought (and confirmed at blockchain) here. I.e.: next secret shown after last valid entry ticket bought by player. The reference moment will be taken from tx time at blockchain.info.

They publish one secret every hour, and each one is the hash of the next one. All previous secrets are shown at the following URL: https://lbaat.net/secrets

i.e.: If you send .1 BTC and bought one ticket then I will take your transaction ID and replicate the process described above.

If you send .1, then your transaction id is used like this:

sha256sum(TXIDSECRET1SECRET2)

Where:

TXID = transaction id in hex as it appears in bitcoin-qt or blockchain;

SECRET1 = High Stakes Bitcoin Raffle Lottery secret;

SECRET2 = "Little Bit at a Time" Secret;

* The winner is the hash with the lowest value (starts with the lowest numbers left-to-right);

* Payout: 85% of Jackpot (after House Rake deduction);

* House Rake (% of pot): 1st Round = 0; 2nd Round = .5%; 3rd Round = 1%; 4th Round = 2%;


-=[ Frequently Asked Questions - FAQ ]=-

What's with all the secrets?

Their reason to be is to be Provably Fair and Cheat Proof. I have one secret and there is a secret that is generated from someone else (that I don't know what will it be). All secrets are verifiable after they are published. All secrets from this raffle game are available on the list (SHA-256 hashed) as seen here: http://pastebin.com/NMgAZkLK

How much is the payout?

The total prize funds is allocated as follows:

85% (after House Rake deduction) of the funds goes to the current jackpot. This is what the winner receives (minus tx fee).

The remaining funds (~15%) goes to the next jackpot, for the next round and is used any bitcoin transaction fees.

Just some reminders:

1. If you don't like the rules, don't play it;
2. I'm gonna do all the hashing manually;
3. Games start with 15% of whatever amount the previous game had;
4. If I change or update the rules, they will take effect right on the next game after publishing the changes. It will not affect the current game nor it's 4 rounds;

Although I said you can send from multiple addresses, as that's how bitcoin works, I would prefer you send your bet from a single one.

What is the purpose of the 85% / 15% deal?

There are two purposes for this.

1. To ensure that the next game/round starts with something;
2. To prevent someone from attempting to buy all the tickets. You can actually buy 100% of them, but the prize you'll get is only 85%.

How much is the House Edge?

There is no house edge! This is like a Peer-to-Peer (P2P) game (as Poker). There is only (a small) house rake for each and every round (except 1st round).

Why is the house rake so small? Are you a scammer?
 
Because this is an experiment and I'm not in for the coins. I'm in for studying the statistical and mathematical behavior and effects of this experiment. That's why the house rake is that small, just to afford the costs of running this experiment. And no! I am not a scammer that's going to run away with your coins!

What are my winning probabilities for each round?

For one single ticket the winning probabilities are:

1st Round = 1/15 = ~6.7%

2nd Round = 1/13 = ~7.7%

3rd Round = 1/12 = ~8.3%

4th Round = 1/10 = 10%

Will there be another game after this one?

Yes. As soon as all tickets are bought I'll draw, send the coins to the winner, roll the pot over and start a new round or game. You just need to follow this topic.

What if this forum goes offline?

If bitcointalk goes offline for more than 48h I'll refund all coins sent to the current round. Otherwise the game goes on.

Is there no deadline for each game/round?

There is. But it's not measured in time. It's measured in actions: it is set after the 1st confirmation (at blockchain) of the 10th bet of .1 BTC sent to the address shown above (last valid entry ticket bought by player).

How is the refund policy?

Payments sent after the deadline will be refunded to the same original sent address (a tx fee of .0001 BTC will be deducted) after the draw.
P.s.: all sent amount different than the multiple of one entry ticket price (.1 BTC) will be considered as donation to the jackpot (not generating additional tickets) and won't be available for refund anymore.

What happens if we don't get enough ticket buyers?

In that specific case all tickets bought will be refunded to the same original sent address (a tx fee of .0001 BTC will be deducted).

Is there any escrow to guarantee the refund of my tickets?

Yes, there is. See detailed info here: https://bitcointalk.org/index.php?topic=567454.msg6182165#msg6182165

I wanna buy two or more tickets. May I buy all of them in one single transaction?

I ask you not to do it in one transaction because it changes the hash calculation method. But if you (stubbornly) still do it, I'll have to add numbers to you transaction id hash in order to generate the tickets.

i.e.: you buy 5 tickets with one single transaction and you get a hash transaction of "TXID". Then I'll add the numbers of tickets bought by you after it.

TXID01; TXID02; TXID03; TXID04 and TXID05.

When hashing (draw): sha256sum(TXID00SECRET1SECRET2)

Can I send a HUGE amount of coins in order to buy tickets and join as many games and rounds as possible?

Please do not do it. Every game (consisting of 4 rounds or less) will be running with a different bitcoin address.

Is every process automated?

No. In fact it's all manually performed.

How do you generate the house tickets?

Almost the same way it's done for players' tickets. All house tickets are created hashing pre generated secrets with the High Stakes Bitcoin Raffle Lottery Secret and the "Little Bit at a Time" Secret set for each round and revealed after all draws. You can verify their fairness too. Those tickets' secrets are not generated as transactions but you may see and verify all of them (SHA-256 hashed) here: http://pastebin.com/duibPqdB

Verifying: sha256sum(HOUSETICKETSECRETSECRET1SECRET2)

Where:

HOUSETICKETSECRET = pre generated secrets. Those tickets' secrets are not generated as transactions but you may see and verify all of them (SHA-256 hashed) here: http://pastebin.com/duibPqdB

SECRET1 = High Stakes Bitcoin Raffle Lottery secret;

SECRET2 = "Little Bit at a Time" Secret.

Do you have a website for this game?

Not yet. This is an experiment, a (almost academic) case study and a work in progress. It's not a priority yet.

I have a doubt that is not listed here!

Feel free to ask me so!

P.s.: I wanna thank forum member Dabs for the support (this raffle game evolved from his "Low Hash Lotto" and some notes have been taken from his original ideas and texts) and all members from the community as well for the positive feedback. Thank you so much!

So, lets have some fun!
397  Economy / Gambling / Re: Mems LIST OF NEWBIE FRIENDLY GAMBLING SITES on: April 02, 2014, 05:31:27 AM
The list looks very cool with the new code.

Now it fits perfectly when I try to load it with any browser. I had some issues before.

Good job!
398  Economy / Service Discussion / Re: Escrow list: Whitelist Ranking & Blacklist - Must view before sending your coins on: March 30, 2014, 02:16:18 AM
List updated (and scores upgraded)!

UPDATE #3 of year 2014.

Keep up the good work everybody!
399  Economy / Gambling / Re: mem's BITCOIN GAMBLING LIST on: March 29, 2014, 11:23:26 PM
What about adding a note/symbol for those that offer games with progressive jackpots? Wink

Ahhh, so nice to talk to an actual gambler and not a scam operator desperately defending their scam.

Yes, yes, 100 times yes.
I love a good jackpot, definitely adding it.

Cheers, keep up with the good suggestions all.
Yes indeed, I am a gambler!  Smiley

However I'm already running a gambling experiment: a Bitcoin Raffle Lottery (with progressive jackpot and provably fair, of course). Wink

Keep up the good work!

Cheers!
400  Economy / Games and rounds / Deleted. on: March 29, 2014, 10:55:02 PM
Remove me.
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