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Bet ID User Time Bet Lucky Target Payout Profit
2208781 asadi 09:39:23 $0.0000 03.9710 >52.8999 2x -$0.0000
2208780 asadi 09:35:31 $0.0000 18.4310 >52.8999 2x -$0.0000
2208779 asadi 09:35:27 $0.0000 95.1398 >52.8999 2x +$0.0000
2208778 asadi 09:35:26 $0.0000 09.7022 >52.8999 2x -$0.0000
2208777 asadi 09:35:21 $0.0000 18.6863 >52.8999 2x -$0.0000
2208776 asadi 09:35:15 $0.0000 58.0888 >52.8999 2x +$0.0000
2208775 asadi 09:35:12 $0.0000 74.4367 >52.8999 2x +$0.0000
2208774 asadi 09:35:10 $0.0000 70.4069 >52.8999 2x +$0.0000
2208773 asadi 09:35:07 $0.0000 22.3231 >52.8999 2x -$0.0000
2208772 asadi 09:35:05 $0.0000 14.1208 >52.8999 2x -$0.0000
2208771 asadi 09:35:01 $0.0000 32.5928 >52.8999 2x -$0.0000
2208770 asadi 09:34:56 $0.0000 84.7078 >52.8999 2x +$0.0000
2208769 asadi 09:34:54 $0.0000 57.2553 >52.8999 2x +$0.0000
2208768 Zulfiqar12 05:32:59 $0.0000 44.4514 <47.1000 2x +$0.0000
2208767 Zulfiqar12 05:32:39 $0.0000 84.7096 <47.1000 2x -$0.0000
2208766 Zulfiqar12 05:32:36 $0.0000 70.2425 <47.1000 2x -$0.0000
2208765 Zulfiqar12 05:30:49 $0.0000 96.7654 >52.8999 2x +$0.0000
2208764 Zulfiqar12 05:30:45 $0.0000 16.7368 >52.8999 2x -$0.0000
2208763 nguyenvucong91 21:23:02 $0.9746 24.9499 >27.5384 1.3x -$0.9746
2208762 nguyenvucong91 21:22:59 $0.0002 42.7584 >27.5384 1.3x +$0.0000
2208761 nguyenvucong91 21:22:58 $0.0002 08.8855 >27.5384 1.3x -$0.0002
2208760 nguyenvucong91 21:22:57 $0.0002 27.1151 >27.5384 1.3x -$0.0002
2208759 nguyenvucong91 21:22:55 $0.0002 18.9506 >27.5384 1.3x -$0.0002
2208758 nguyenvucong91 21:22:52 $0.0002 59.0543 <72.4615 1.3x +$0.0000
2208757 nguyenvucong91 21:22:50 $0.0002 63.5069 >27.5384 1.3x +$0.0000
2208756 nguyenvucong91 21:22:49 $0.0002 91.0134 >27.5384 1.3x +$0.0000
2208755 nguyenvucong91 21:22:48 $0.0002 79.5956 >27.5384 1.3x +$0.0000
2208754 nguyenvucong91 21:22:47 $0.0002 24.7101 >27.5384 1.3x -$0.0002
2208753 nguyenvucong91 21:22:47 $0.0002 14.7462 >27.5384 1.3x -$0.0002
2208752 nguyenvucong91 21:22:46 $0.0002 92.1693 >27.5384 1.3x +$0.0000
2208751 nguyenvucong91 21:22:45 $0.0002 66.7067 >27.5384 1.3x +$0.0000
2208750 nguyenvucong91 21:22:44 $0.0002 43.7134 >27.5384 1.3x +$0.0000
2208749 nguyenvucong91 21:22:43 $0.0002 21.9130 >27.5384 1.3x -$0.0002
2208748 nguyenvucong91 21:22:42 $0.0002 63.6531 >27.5384 1.3x +$0.0000
2208747 nguyenvucong91 21:22:42 $0.0002 75.4713 >27.5384 1.3x +$0.0000
2208746 nguyenvucong91 21:22:41 $0.0002 59.5238 >27.5384 1.3x +$0.0000
2208745 nguyenvucong91 21:22:40 $0.0002 79.1410 >27.5384 1.3x +$0.0000
2208744 nguyenvucong91 21:22:39 $0.0002 71.4714 >27.5384 1.3x +$0.0000
2208743 nguyenvucong91 21:22:38 $0.0002 93.7179 <72.4615 1.3x -$0.0002
2208742 nguyenvucong91 21:22:37 $0.0002 65.3028 <72.4615 1.3x +$0.0000
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));


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Your Affiliate Statistics

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


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  • Total Bets:
    0
  •      Total Wagered:
    $0.0000