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Bet ID User Time Bet Lucky Target Payout Profit
2195056 finance89 06:54:19 $0.0000 08.1919 >52.8999 2x -$0.0000
2195055 finance89 06:53:30 $0.1000 47.2687 >52.8999 2x -$0.1000
2195054 finance89 06:53:24 $0.1000 34.8401 >52.8999 2x -$0.1000
2195053 sansaman 20:21:57 $0.0430 58.5131 <47.1000 2x -$0.0430
2195052 sansaman 20:21:34 $0.0320 50.7252 <47.1000 2x -$0.0320
2195051 sansaman 20:21:29 $0.0160 18.5743 >52.8999 2x -$0.0160
2195050 sansaman 20:21:25 $0.0080 32.9207 >52.8999 2x -$0.0080
2195049 sansaman 20:21:19 $0.0040 38.9364 >52.8999 2x -$0.0040
2195048 sansaman 20:21:11 $0.0020 69.0900 <47.1000 2x -$0.0020
2195047 sansaman 20:20:54 $0.0010 31.0318 >52.8999 2x -$0.0010
2195046 sansaman 20:20:33 $0.0010 85.4069 >52.8999 2x +$0.0010
2195045 sansaman 20:20:29 $0.0010 01.2542 >52.8999 2x -$0.0010
2195044 sansaman 20:20:28 $0.0010 79.4517 >52.8999 2x +$0.0010
2195043 sansaman 20:20:17 $0.0010 64.5318 >52.8999 2x +$0.0010
2195042 sansaman 20:19:53 $0.0040 19.3759 <47.1000 2x +$0.0040
2195041 sansaman 20:19:17 $0.0040 49.2131 <47.1000 2x -$0.0040
2195040 sansaman 20:19:11 $0.0040 15.8902 <47.1000 2x +$0.0040
2195039 sansaman 20:18:56 $0.0020 04.3813 >52.8999 2x -$0.0020
2195038 sansaman 20:18:50 $0.0010 12.8794 >52.8999 2x -$0.0010
2195037 sansaman 20:18:46 $0.0020 64.1267 >52.8999 2x +$0.0020
2195036 sansaman 20:18:42 $0.0010 60.3245 <47.1000 2x -$0.0010
2195035 sansaman 20:18:36 $0.0010 80.4391 >52.8999 2x +$0.0010
2195034 sansaman 20:18:29 $0.0080 25.6457 <47.1000 2x +$0.0080
2195033 sansaman 20:18:25 $0.0040 99.3155 <47.1000 2x -$0.0040
2195032 sansaman 20:18:20 $0.0020 63.5529 <47.1000 2x -$0.0020
2195031 sansaman 20:18:16 $0.0010 50.9401 >52.8999 2x -$0.0010
2195030 sansaman 20:18:13 $0.0010 90.6798 >52.8999 2x +$0.0010
2195029 sansaman 20:18:08 $0.0080 68.6392 >52.8999 2x +$0.0080
2195028 sansaman 20:18:03 $0.0040 82.2571 <47.1000 2x -$0.0040
2195027 sansaman 20:17:57 $0.0020 49.4752 >52.8999 2x -$0.0020
2195026 sansaman 20:17:53 $0.0010 73.0223 <47.1000 2x -$0.0010
2195025 sansaman 20:17:47 $0.0080 88.0643 >52.8999 2x +$0.0080
2195024 sansaman 20:17:42 $0.0040 72.0756 <47.1000 2x -$0.0040
2195023 sansaman 20:17:36 $0.0020 24.4127 >52.8999 2x -$0.0020
2195022 sansaman 20:17:32 $0.0010 88.0524 <47.1000 2x -$0.0010
2195021 sansaman 20:17:25 $0.0020 78.2973 >52.8999 2x +$0.0020
2195020 sansaman 20:17:19 $0.0010 69.2940 <47.1000 2x -$0.0010
2195019 sansaman 20:17:15 $0.0010 69.2275 >52.8999 2x +$0.0010
2195018 sansaman 20:17:11 $0.0010 03.5706 <47.1000 2x +$0.0010
2195017 sansaman 20:17:07 $0.0010 97.4814 >52.8999 2x +$0.0010
Bet ID User Time Bet Lucky Target Payout Profit

Provable Fairness Overview

This game is provably fair. What that means is that there is no way the site can cheat you by picking numbers to make you lose. You can take our word for it, but for the crypto-nerds out there, here are the gory details: When you click "Rerandomize(Change client seed)" we make up a secret random string (the server seed) that is used to randomize the rolls. You are shown the hash of the server seed, and are asked to supply your own random number (the client seed) to further randomize the rolls.

Current Seed Pair

The client seed currently in use:


The sha256 hash of the server seed you are currently using is:


and the number of bets you have made using it:


Rerandomize(Change client seed)

Each time you roll, the server and client seeds are combined with the number of rolls you have made since the seeds were selected to create the roll. Notice that you are shown the hash of the server seed before picking your client seed. This ensures that there is no way we can influence the numbers you will roll.


Provably Fair

7Double offers state of the art verification which allows our users to check the integrity of every roll and confirm they are not manipulated. Our random numbers are generated through the use of two seeds, a server seed, and your client seed. The server seed is created before you specify your client seed, ensuring that a server seed purposely in our favor cannot be generated. Together, along with the nonce (# of bets made with seed pair), the seeds are used to create a provably fair roll number within the 0-99.9999 range.

Seeds

In the provably fair tab, users can change and verify seeds used. To do this, click "Rerandomize" . Before you specify your own seed, you are shown the SHA256 hash of the server seed that will be used alongside whichever seed you pick. Changing the client seed used will also reveal the previous server seed, which you can then verify was the seed we hashed and showed you.

Roll Numbers

To create a roll number, 7Double uses a multi-step process to create a roll number 0-99.9999. Both client and server seeds and a nonce are combined with hmac-sha512(server_seed, client_seed-nonce) which will generate a hex string. The nonce is the # of bets you made with the current seed pair. First five characters are taken from the hex string to create a roll number that is 0-1,048,575. If the roll number is over 999,999, the proccess is repeated with the next five characters skipping the previous set. This is done until a number less than 1,000,000 is achieved. In the astronomically unlikely event that all possible 5 character combinations are greater, 99.9999 is used as the roll number. The resulting number 0-999,999 is applied a modulus of 10^6, to obtain a roll number 0-999999, and divided by 10^4 to result a 0-99.9999 number.

How to Verify

JS Verify
Copy the 3-line value from the "Rerandomize(Change client seed)" window into the first input of those pages and click "verify" for a list of the numbers you rolled.

You can use a third party tool to verify roll numbers or use the following Node.js script that recreates the proccess described above. It will output your roll number.

              
            //the seed pair itself
var clientSeed = "your client seed"; //dont forget to exclude the dash and the nonce!
var serverSeed = "your server seed";
//bet made with seed pair (excluding current bet)
var nonce = 0;
//crypto lib for hmac function
var crypto = require('crypto');
var roll = function(key, text) {
//create HMAC using server seed as key and client seed as message
var hash = crypto.createHmac('sha512', key).update(text).digest('hex');
var index = 0;
var lucky = parseInt(hash.substring(index * 5, index * 5 + 5), 16);
//keep grabbing characters from the hash while greater than
while (lucky >= Math.pow(10, 6)) {
index++;
lucky = parseInt(hash.substring(index * 5, index * 5 + 5), 16);
//if we reach the end of the hash, just default to highest number
if (index * 5 + 5 > 128) {
lucky = 99.9999;
break;
}
}
lucky %= Math.pow(10, 6);
lucky /= Math.pow(10, 4);
return lucky;
}
console.log(roll(clientSeed+'-'+nonce,serverSeed));


AFFILIATE

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Your Affiliate URL:

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(OR)
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Your Affiliate Statistics

Available Commission:
0.0000 USD
Total Paid:
0.0000 USD
Depositors:
0
Non-depositors:
0
Commission of Edge:
20%


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  • Total Bets:
    0
  •      Total Wagered:
    $0.0000