FreeBitco.in-$200 FreeBTC⭐Win Lambo🔥0.2BTC DailyJackpot🏆$32,500 Wager Contest

[poptok1]

-snip-
I willl offer 1 BTC to anybody who can provide me with a way to make the lottery provably fair in issuing tickets and picking out winners. The system described should be able to handle hundreds of millions of tickets and verification for users should be fairly easy and straightforward. You can post your ideas here and I'll go through them and reward the idea that we use.

How about providing blockchain transaction links in the "previous round winners" list for starters?
Not as much verifiable as most people would want but it gives at least some transparency, right?
There is a case where people don't withdraw, it makes sense now with 4% annually, than disclose users ID number
and place a token stating about bitcoins being saved on account. 
 

[1679787852]

1679787852

[1679787852]

1679787852

[1679787852]

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[wetsuit]

-snip-
I willl offer 1 BTC to anybody who can provide me with a way to make the lottery provably fair in issuing tickets and picking out winners. The system described should be able to handle hundreds of millions of tickets and verification for users should be fairly easy and straightforward. You can post your ideas here and I'll go through them and reward the idea that we use.

How about providing blockchain transaction links in the "previous round winners" list for starters?
Not as much verifiable as most people would want but it gives at least some transparency, right?
 

Not everyone withdraws immediately and ignoring privacy issues posting a blockchain transaction wouldn't really be proof of anything. I could just send bitcoins to my own addresses and claim that those are payments for winners.

[edge777]

I would love to make the lottery provably fair but unfortunately there is no method of doing so as far as I know. Hence, I have done the next best thing which is to offer users a chance to opt out of the lottery and receive reward points instead if they feel the lottery is rigged. You can do this from the PROFILE page.

I willl offer 1 BTC to anybody who can provide me with a way to make the lottery provably fair in issuing tickets and picking out winners. The system described should be able to handle hundreds of millions of tickets and verification for users should be fairly easy and straightforward. You can post your ideas here and I'll go through them and reward the idea that we use.

Both the free roll and the dice game are provably fair and the website will be going completely ad-free as of today.

You can design a system something like this:
Let's say, Person A bought 5,000 tickets, Person B bought 9,000 tickets, Person C bought 50,000 and Person D bought 1,17,000 tickets

User A : 5,000 tickets
User B : 9,000 tickets
User C : 50,000 tickets
User D : 1,17,000 tickets

Combined, total tickets : 1,81,000
Generate a random number between 0 and 1,81,000

Set a windows like below :

0-5,000--- User A wins
5,000-14,000--- User B wins
9,000-64,000--- User C wins
64,000-1,81,000 ---User D wins // User D with most tickets has the largest window
...

After an iteration, get the user ID who won, out of the system and run it again for second place and so on until you get your 10 winners.

Good Luck!!

Edit: I believe generating a provably fair random number wouldn't be an issue.

[Snatdard usre]

Another BTC lottery site claims they are provably fair: http://lotterybits.com/provablyfair.php  I'm not into programming or maths, so I'm not sure.

If there is one player registered for a game, then he will be the winner.
If there is more than one player registered for a game, then we use the seed value for the game and game ID to determine the winner.
Each game has a seed (example: 3541e9631f7ea07abebe2de40c0f3db931c66fe7124e65ae767746112a0fade9) and game ID.
The hash of the seed for each game is shown on the website so that users can verify that the seed used to calculate the winner is the same we declared before game.
We use cryptographic function to get a number between 0 and 1000000 from the seed and game ID.
Then we take the mod of the selected number by the number of players to get the player ID of the winner.

Example: if the number is 5783 and the number of registered users are 10, then 5783 mod 10 = 3 so the winner is user 4.

[Orange Mango]

Another BTC lottery site claims they are provably fair: http://lotterybits.com/provablyfair.php  I'm not into programming or maths, so I'm not sure.

If there is one player registered for a game, then he will be the winner.
If there is more than one player registered for a game, then we use the seed value for the game and game ID to determine the winner.
Each game has a seed (example: 3541e9631f7ea07abebe2de40c0f3db931c66fe7124e65ae767746112a0fade9) and game ID.
The hash of the seed for each game is shown on the website so that users can verify that the seed used to calculate the winner is the same we declared before game.
We use cryptographic function to get a number between 0 and 1000000 from the seed and game ID.
Then we take the mod of the selected number by the number of players to get the player ID of the winner.

Example: if the number is 5783 and the number of registered users are 10, then 5783 mod 10 = 3 so the winner is user 4.

I think the only way to know and be sure is when a casino website builds up s good reputation for itself. Then players are more likely to play there even if the games are simple. Trust is key to all business.

Remember even if s game is fair they still might not payout. Don't forget the human aspect.

[goinmerry]

I would love to make the lottery provably fair but unfortunately there is no method of doing so as far as I know. Hence, I have done the next best thing which is to offer users a chance to opt out of the lottery and receive reward points instead if they feel the lottery is rigged. You can do this from the PROFILE page.

I willl offer 1 BTC to anybody who can provide me with a way to make the lottery provably fair in issuing tickets and picking out winners. The system described should be able to handle hundreds of millions of tickets and verification for users should be fairly easy and straightforward. You can post your ideas here and I'll go through them and reward the idea that we use.

Both the free roll and the dice game are provably fair and the website will be going completely ad-free as of today.

As for the reference to the above post before that post of yours, I understand that it's really a fair draw as you guys are always stated. As from what I understand to the concerned of that post, the point is, there are already lots of winners for a total of 106 in each tier. If there is 10 tier then a total now would be 1,060 users. To 106 winners of 1st prize none of them didn't have a chance to show proofs here in bitcointalk that they already won. For 106 second prize winners too and so on. For the total winners only I think less than 10 show proofs they won the lottery and that is on smaller tier or correct me if Im mistaken here. Questions like that will really raised here.

Freebitco doesn't have to do if majority of those 1,060 winners doesn't want to give proof but isn't it nice if they will somehow show proofs as it will give Freebitco gained more trust to users especially right now that they are adding good features in their site?

[Victorycoin]

I would love to make the lottery provably fair but unfortunately there is no method of doing so as far as I know. Hence, I have done the next best thing which is to offer users a chance to opt out of the lottery and receive reward points instead if they feel the lottery is rigged. You can do this from the PROFILE page.

I willl offer 1 BTC to anybody who can provide me with a way to make the lottery provably fair in issuing tickets and picking out winners. The system described should be able to handle hundreds of millions of tickets and verification for users should be fairly easy and straightforward. You can post your ideas here and I'll go through them and reward the idea that we use.

Both the free roll and the dice game are provably fair and the website will be going completely ad-free as of today.

As for the reference to the above post before that post of yours, I understand that it's really a fair draw as you guys are always stated. As from what I understand to the concerned of that post, the point is, there are already lots of winners for a total of 106 in each tier. If there is 10 tier then a total now would be 1,060 users. To 106 winners of 1st prize none of them didn't have a chance to show proofs here in bitcointalk that they already won. For 106 second prize winners too and so on. For the total winners only I think less than 10 show proofs they won the lottery and that is on smaller tier or correct me if Im mistaken here. Questions like that will really raised here.

Freebitco doesn't have to do if majority of those 1,060 winners doesn't want to give proof but isn't it nice if they will somehow show proofs as it will give Freebitco gained more trust to users especially right now that they are adding good features in their site?

Doesn't make sense that such vast number of people could settle to not celebrate their windfall. If one may ask, since when does winning a lottery became something to be shy of? I think the onus rests with Wetsuit to tell all of us here, we are bunch of unlucky folks, that is why no regular person here - Bitcointalk, have ever won.

[harizen]

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Wetsuit created a thread somewhere about users must post their winnings there. As far as all my readings there is concerned, I don't see a great numbers out of that great numbers won the big amount. Wetsuit encouraging them to post proofs. How hardheaded that 1000+ winners not to post their winning proofs lol.

Yeah we are bunch of unlucky folks here.

[MinerHQ]

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Wetsuit created a thread somewhere about users must post their winnings there. As far as all my readings there is concerned, I don't see a great numbers out of that great numbers won the big amount. Wetsuit encouraging them to post proofs. How hardheaded that 1000+ winners not to post their winning proofs lol.

Yeah we are bunch of unlucky folks here.

If an admin wants to encourage those winners then should offer them some extra tips for posting proof on that thread then surely all the winners will post their winnings. All issues will have solutions just need to find them. Just offer small extra amount then everyone will rush to post their proofs.

[Dav7]

Both the free roll and the dice game are provably fair and the website will be going completely ad-free as of today.

Temporarily ?

[Betwrong]

Freebitco.in is te best faucet. But their hi-lo game system is too bad for the high (5%) house edge. As they says it's a bitcoin faucet but their most income comes from gambling.
I have lost my affordable btc here. I'm not reporting about their gambling. I just share my opinion here. I will suggest don't play multiply game here. I will not play any roll on this faucet anymore. Because I think there is not any chance to won big prizes.After playing 5400+ hourly roll I never won 2$,20$,200$ prizes.
~

I'm sorry for your loss but you should have known that people lose big money to dice sites even with lower house edge.

What looks strange to me is that you've never won $2 although you've played 5400+ free rolls there, because even though my FREE ROLLS PLAYED is 1,005, I've won $2 once.

[Myfe]

If an admin wants to encourage those winners then should offer them some extra tips for posting proof on that thread then surely all the winners will post their winnings. All issues will have solutions just need to find them. Just offer small extra amount then everyone will rush to post their proofs.

FreeBitco.in does offer a reward/bonuse for posting proof of the big wins - as long as you have a screenshot. The OP to that thread (which is still very active) requests $200 and $20 winners to announce their good fortune. To be fair, it doesn't ask lottery winners to come forward, but lottery winners could if they wanted to.

Doesn't make sense that such vast number of people could settle to not celebrate their windfall. If one may ask, since when does winning a lottery became something to be shy of? I think the onus rests with Wetsuit to tell all of us here, we are bunch of unlucky folks, that is why no regular person here - Bitcointalk, have ever won.

I realize that this forum is a center of activity and discussion for anyone and anything bitcoin related. But that doesn't mean that everyone and everything bitcoin related is here. There's actually a very small community cruising these boards regularly.

If you broke down the math of how many members are actively on this forum out of how many people use bitcoin I suspect the % would be quite low.

[BTCevo]

I would love to make the lottery provably fair but unfortunately there is no method of doing so as far as I know. Hence, I have done the next best thing which is to offer users a chance to opt out of the lottery and receive reward points instead if they feel the lottery is rigged. You can do this from the PROFILE page.

I willl offer 1 BTC to anybody who can provide me with a way to make the lottery provably fair in issuing tickets and picking out winners. The system described should be able to handle hundreds of millions of tickets and verification for users should be fairly easy and straightforward. You can post your ideas here and I'll go through them and reward the idea that we use.

Both the free roll and the dice game are provably fair and the website will be going completely ad-free as of today.

You can design a system something like this:
Let's say, Person A bought 5,000 tickets, Person B bought 9,000 tickets, Person C bought 50,000 and Person D bought 1,17,000 tickets

User A : 5,000 tickets
User B : 9,000 tickets
User C : 50,000 tickets
User D : 1,17,000 tickets

Combined, total tickets : 1,81,000
Generate a random number between 0 and 1,81,000

Set a windows like below :

0-5,000--- User A wins
5,000-14,000--- User B wins
9,000-64,000--- User C wins
64,000-1,81,000 ---User D wins // User D with most tickets has the largest window
...

After an iteration, get the user ID who won, out of the system and run it again for second place and so on until you get your 10 winners.

Good Luck!!

Edit: I believe generating a provably fair random number wouldn't be an issue.

how can this method be applied on here when people are getting it from gambling? This is free tickets that they get from wagering a lot of coin. I think there is only less people that really want to buy this tickets

More over, if you are setting that kind of windows, how are you going to divide tons of address out there? And we do not even know if all of that address is real person, how can they even get 1 mil tickets in a week?

[keyscore44]

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Wetsuit created a thread somewhere about users must post their winnings there. As far as all my readings there is concerned, I don't see a great numbers out of that great numbers won the big amount. Wetsuit encouraging them to post proofs. How hardheaded that 1000+ winners not to post their winning proofs lol.

Yeah we are bunch of unlucky folks here.

Some time ago I saw this thread and it is true that not many winners reveal there, but you must remeber, that Bitcointalk is mostly in english, and there is hundreds of forums in other languages where people publish referral links and bring users to claim satoshi. I'm sure that most of freebitco.in users don't even know that bitcointalk exist.

[freemanjackal]

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Wetsuit created a thread somewhere about users must post their winnings there. As far as all my readings there is concerned, I don't see a great numbers out of that great numbers won the big amount. Wetsuit encouraging them to post proofs. How hardheaded that 1000+ winners not to post their winning proofs lol.

Yeah we are bunch of unlucky folks here.

Some time ago I saw this thread and it is true that not many winners reveal there, but you must remeber, that Bitcointalk is mostly in english, and there is hundreds of forums in other languages where people publish referral links and bring users to claim satoshi. I'm sure that most of freebitco.in users don't even know that bitcointalk exist.

yeah that could be possible, but if they are btc fans, sooner or later they will find this forum, beacause that was how i started, in frebitco.in, and pretty sure that all the winners if there are any out there, have some time around btc world, so they should have found this site. it is what i think

[harizen]

Wetsuit created a thread somewhere about users must post their winnings there. As far as all my readings there is concerned, I don't see a great numbers out of that great numbers won the big amount. Wetsuit encouraging them to post proofs. How hardheaded that 1000+ winners not to post their winning proofs lol.
Yeah we are bunch of unlucky folks here.

Some time ago I saw this thread and it is true that not many winners reveal there, but you must remeber, that Bitcointalk is mostly in english, and there is hundreds of forums in other languages where people publish referral links and bring users to claim satoshi. I'm sure that most of freebitco.in users don't even know that bitcointalk exist.

I don't agree. They not encounter bitcointalk.org while they are in bitcoin world even for a long time? Ok let's say yes but can we say that all of the winners don't know bitcointalk exist? That is thousand winners and currently 106 first prize winners based on the computation by one of the user here and not even one of them claim they won the first prize?

Ok stick to that kind of belief.

yeah that could be possible, but if they are btc fans, sooner or later they will find this forum, beacause that was how i started, in frebitco.in, and pretty sure that all the winners if there are any out there, have some time around btc world, so they should have found this site. it is what i think

Exactly and likely I will agree. Anyways we don't have anything to do here since admin itself doesn't have a strong stand to that issue.

[wetsuit]

Some of you may notice that you do not need to solve a captcha for the free play game anymore. Its something that I have been working on and may be able to roll out to a larger number of users soon.

I also have some stuff planned to enable users to increase their base rewards since they have gone down a lot off late due to the rising bitcoin price.

[Food2]

Ok, so this uses your already provably fair method for determining rolls.
----------------------------------------------------

At the start of the round, have the server create a seed, and display that seed hashed to the public. At the end of the round, generate a roll using the round's total amount of tickets hashed as the client seed, and the nonce being the lottery round number.

Define t by taking that roll number and multiplying by one million (t = roll#*1000000). Define n by taking t and performing a modulo operation with the round's ticket count, and adding one (n = (t%tktcount) + 1). And there you have it, the winning ticket is the nth ticket acquired in the round.

Finally, to make it truly provably fair, make a spreadsheet of sorts (google docs?) which shows each user id and the number of tickets purchased in order from the start of the round to the end (See this link: https://docs.google.com/spreadsheets/d/16FCMiXgVXI9unoFMm2qgCoK7gGA5BaZqth2BCoddT7k/edit?usp=sharing) - Use multiple entries for each purchase as necessary (Shown in the spreadsheet). This spreadsheet is updated automatically after someone earns/buys a lottery ticket, and there is a link on the lottery page where users can view the spreadsheet at all times.

Users can verify the winner after the round by doing the roll formula and checking it against the spreadsheet.


Let me know if you have any questions, or if I missed anything.

Jake

Edit: Grammar

[Csmiami]

Ok, so this uses your already provably fair method for determining rolls.
----------------------------------------------------

At the start of the round, have the server create a seed, and display that seed hashed to the public. At the end of the round, generate a roll using the round's total amount of tickets hashed as the client seed, and the nonce being the lottery round number.

Define t by taking that roll number and multiplying by one million (t = roll#*1000000). Define n by taking t and performing a modulo operation with the round's ticket count, and adding one (n = (t%tktcount) + 1). And there you have it, the winning ticket is the nth ticket acquired in the round.

Finally, to make it truly provably fair, make a spreadsheet of sorts (google docs?) which shows each user id and the number of tickets purchased in order from the start of the round to the end (See this link: https://docs.google.com/spreadsheets/d/16FCMiXgVXI9unoFMm2qgCoK7gGA5BaZqth2BCoddT7k/edit?usp=sharing) - Use multiple entries for each purchase as necessary (Shown in the spreadsheet). This spreadsheet is updated automatically after someone earns/buys a lottery ticket, and there is a link on the lottery page where users can view the spreadsheet at all times.

Users can verify the winner after the round by doing the roll formula and checking it against the spreadsheet.


Let me know if you have any questions, or if I missed anything.

Jake

Edit: Grammar

WTF? not even newbie but brand new user talking about the system.... Are you actually part of the freebitco.in staff or just have found that that it works that way?

[Food2]

Ok, so this uses your already provably fair method for determining rolls.
----------------------------------------------------

At the start of the round, have the server create a seed, and display that seed hashed to the public. At the end of the round, generate a roll using the round's total amount of tickets hashed as the client seed, and the nonce being the lottery round number.

Define t by taking that roll number and multiplying by one million (t = roll#*1000000). Define n by taking t and performing a modulo operation with the round's ticket count, and adding one (n = (t%tktcount) + 1). And there you have it, the winning ticket is the nth ticket acquired in the round.

Finally, to make it truly provably fair, make a spreadsheet of sorts (google docs?) which shows each user id and the number of tickets purchased in order from the start of the round to the end (See this link: https://docs.google.com/spreadsheets/d/16FCMiXgVXI9unoFMm2qgCoK7gGA5BaZqth2BCoddT7k/edit?usp=sharing) - Use multiple entries for each purchase as necessary (Shown in the spreadsheet). This spreadsheet is updated automatically after someone earns/buys a lottery ticket, and there is a link on the lottery page where users can view the spreadsheet at all times.

Users can verify the winner after the round by doing the roll formula and checking it against the spreadsheet.


Let me know if you have any questions, or if I missed anything.

Jake

Edit: Grammar

WTF? not even newbie but brand new user talking about the system.... Are you actually part of the freebitco.in staff or just have found that that it works that way?

I am in no way an expert or claimed to be one. I find bitcointalk interesting to read through, and as I was reading through I saw a reward was available to whoever could solve wetsuit's dilemma. I figured I would take a crack at it, and only created an account to post this because I have no other means of doing so.

I sincerely apologise if my post rubbed you the wrong way or offended you, as that was not my intent.