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Bet ID User Time Bet Lucky Target Payout Profit
2193744 Popovich 10:39:17 $0.0000 66.5276 >52.8999 2x +$0.0000
2193743 Popovich 10:33:40 $0.0000 79.4823 >52.8999 2x +$0.0000
2193742 Popovich 10:33:36 $0.0000 12.6765 >52.8999 2x -$0.0000
2193741 Popovich 10:33:30 $0.0000 65.1958 >52.8999 2x +$0.0000
2193740 asdsad 10:23:22 $0.0000 28.8511 >52.8999 2x -$0.0000
2193739 asdsad 10:23:18 $0.0000 77.6219 >52.8999 2x +$0.0000
2193738 asdsad 10:23:17 $0.0000 72.1643 >52.8999 2x +$0.0000
2193737 gsgs34tsg 19:10:40 $0.0000 77.4037 >84.2999 6x -$0.0000
2193736 gsgs34tsg 19:10:39 $0.0000 18.4085 >84.2999 6x -$0.0000
2193735 gsgs34tsg 19:10:28 $0.0000 46.9059 >84.2999 6x -$0.0000
2193734 gsgs34tsg 19:10:27 $0.0000 12.1335 >84.2999 6x -$0.0000
2193733 gsgs34tsg 19:10:25 $0.0000 88.8222 >84.2999 6x +$0.0000
2193732 gsgs34tsg 19:10:18 $0.0000 89.5881 >52.8999 2x +$0.0000
2193731 gsgs34tsg 19:10:17 $0.0000 50.9424 >52.8999 2x -$0.0000
2193730 gsgs34tsg 19:10:16 $0.0000 42.5288 >52.8999 2x -$0.0000
2193729 gsgs34tsg 19:10:15 $0.0000 66.1845 >52.8999 2x +$0.0000
2193728 gsgs34tsg 19:10:12 $0.0000 25.9894 >52.8999 2x -$0.0000
2193727 gsgs34tsg 19:10:11 $0.0000 18.8529 >52.8999 2x -$0.0000
2193726 gsgs34tsg 19:10:10 $0.0000 85.8834 >52.8999 2x +$0.0000
2193725 gsgs34tsg 19:10:08 $0.0000 48.4238 >52.8999 2x -$0.0000
2193724 gsgs34tsg 19:09:54 $0.0000 20.2289 >52.8999 2x -$0.0000
2193723 gsgs34tsg 19:09:53 $0.0000 32.6378 >52.8999 2x -$0.0000
2193722 gsgs34tsg 19:09:52 $0.0000 90.0329 >52.8999 2x +$0.0000
2193721 gsgs34tsg 19:09:51 $0.0000 89.4167 >52.8999 2x +$0.0000
2193720 gsgs34tsg 19:09:50 $0.0000 46.6933 >52.8999 2x -$0.0000
2193719 gsgs34tsg 19:09:49 $0.0000 14.8458 >52.8999 2x -$0.0000
2193718 gsgs34tsg 19:09:47 $0.0000 75.4158 >52.8999 2x +$0.0000
2193717 gsgs34tsg 19:09:46 $0.0000 89.2391 >52.8999 2x +$0.0000
2193716 gsgs34tsg 19:09:40 $0.0000 04.0054 >52.8999 2x -$0.0000
2193715 gsgs34tsg 19:09:38 $0.0000 06.4849 >52.8999 2x -$0.0000
2193714 gsgs34tsg 19:09:36 $0.0000 57.7507 >52.8999 2x +$0.0000
2193713 gsgs34tsg 19:09:34 $0.0000 28.6559 >52.8999 2x -$0.0000
2193712 gsgs34tsg 19:09:33 $0.0000 19.8487 >52.8999 2x -$0.0000
2193711 gsgs34tsg 19:09:32 $0.0000 16.8723 >52.8999 2x -$0.0000
2193710 gsgs34tsg 19:09:30 $0.0000 67.4884 >52.8999 2x +$0.0000
2193709 gsgs34tsg 19:09:29 $0.0000 33.1565 >52.8999 2x -$0.0000
2193708 gsgs34tsg 19:09:27 $0.0000 60.1519 >52.8999 2x +$0.0000
2193707 gsgs34tsg 19:09:24 $0.0000 62.5758 >52.8999 2x +$0.0000
2193706 gsgs34tsg 19:09:23 $0.0000 52.7745 >52.8999 2x -$0.0000
2193705 gsgs34tsg 19:09:22 $0.0000 51.9592 >52.8999 2x -$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

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Total Paid:
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Non-depositors:
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Commission of Edge:
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  • Total Bets:
    0
  •      Total Wagered:
    $0.0000