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Bet ID User Time Bet Lucky Target Payout Profit
2211794 rpcal92 21:19:02 $0.0100 95.0852 >06.7326 1.01x +$0.0001
2211793 rpcal92 21:18:59 $0.0100 67.3946 >06.7326 1.01x +$0.0001
2211792 rpcal92 21:18:56 $0.0100 06.4076 >06.7326 1.01x -$0.0100
2211791 rpcal92 21:18:53 $0.0100 70.0855 >06.7326 1.01x +$0.0001
2211790 rpcal92 21:18:50 $0.0100 83.0615 >06.7326 1.01x +$0.0001
2211789 rpcal92 21:18:47 $0.0100 70.5354 >06.7326 1.01x +$0.0001
2211788 rpcal92 21:18:44 $0.0100 22.2836 >06.7326 1.01x +$0.0001
2211787 rpcal92 21:18:41 $0.0100 13.2413 >06.7326 1.01x +$0.0001
2211786 rpcal92 21:18:38 $0.0100 81.6247 >06.7326 1.01x +$0.0001
2211785 rpcal92 21:18:35 $0.0100 22.1071 >06.7326 1.01x +$0.0001
2211784 rpcal92 21:18:32 $0.0100 70.4319 >06.7326 1.01x +$0.0001
2211783 rpcal92 21:18:29 $0.0100 32.4464 >06.7326 1.01x +$0.0001
2211782 rpcal92 21:18:26 $0.0100 55.3017 >06.7326 1.01x +$0.0001
2211781 rpcal92 21:18:23 $0.0100 90.3640 >06.7326 1.01x +$0.0001
2211780 rpcal92 21:18:20 $0.0100 76.4016 >06.7326 1.01x +$0.0001
2211779 rpcal92 21:18:17 $0.0100 16.7773 >06.7326 1.01x +$0.0001
2211778 rpcal92 21:18:14 $0.0100 05.8263 >06.7326 1.01x -$0.0100
2211777 rpcal92 21:18:11 $0.0100 34.1076 >06.7326 1.01x +$0.0001
2211776 rpcal92 21:18:08 $0.0100 25.4766 >06.7326 1.01x +$0.0001
2211775 rpcal92 21:18:05 $0.0100 49.6907 >06.7326 1.01x +$0.0001
2211774 rpcal92 21:18:02 $0.0100 04.4398 >06.7326 1.01x -$0.0100
2211773 rpcal92 21:18:01 $0.0100 41.6601 >06.7326 1.01x +$0.0001
2211772 rpcal92 21:17:56 $0.0100 51.2592 >06.7326 1.01x +$0.0001
2211771 rpcal92 21:17:53 $0.0100 47.4379 >06.7326 1.01x +$0.0001
2211770 rpcal92 21:17:50 $0.0100 88.2627 >06.7326 1.01x +$0.0001
2211769 rpcal92 21:17:47 $0.0100 92.4919 >06.7326 1.01x +$0.0001
2211768 rpcal92 21:17:44 $0.0100 02.1151 >06.7326 1.01x -$0.0100
2211767 rpcal92 21:17:41 $0.0100 02.9464 >06.7326 1.01x -$0.0100
2211766 rpcal92 21:17:38 $0.0100 71.5424 >06.7326 1.01x +$0.0001
2211765 rpcal92 21:17:35 $0.0100 42.2779 >06.7326 1.01x +$0.0001
2211764 rpcal92 21:17:32 $0.0100 74.4304 >06.7326 1.01x +$0.0001
2211763 rpcal92 21:17:29 $0.0100 90.1556 >06.7326 1.01x +$0.0001
2211762 rpcal92 21:17:26 $0.0100 37.4089 >06.7326 1.01x +$0.0001
2211761 rpcal92 21:17:23 $0.0100 14.4429 >06.7326 1.01x +$0.0001
2211760 rpcal92 21:17:20 $0.0100 33.9549 >06.7326 1.01x +$0.0001
2211759 rpcal92 21:17:17 $0.0100 11.9030 >06.7326 1.01x +$0.0001
2211758 rpcal92 21:17:14 $0.0100 50.2352 >06.7326 1.01x +$0.0001
2211757 rpcal92 21:17:11 $0.0100 61.3415 >06.7326 1.01x +$0.0001
2211756 rpcal92 21:17:08 $0.0100 95.9703 >06.7326 1.01x +$0.0001
2211755 rpcal92 21:17:05 $0.0100 73.3480 >06.7326 1.01x +$0.0001
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:
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Non-depositors:
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Commission of Edge:
20%


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  •      Total Wagered:
    $0.0000