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Bet ID User Time Bet Lucky Target Payout Profit
2633535 bilqa 09:02:40 $0.0208 37.6260 >52.8999 2x -$0.0208
2633534 bilqa 09:02:36 $0.0104 28.2935 >52.8999 2x -$0.0104
2633533 bilqa 09:02:28 $0.0104 67.1346 >52.8999 2x +$0.0104
2633532 bilqa 09:02:23 $0.0104 09.9574 >52.8999 2x -$0.0104
2633531 bilqa 09:02:21 $0.0104 73.8895 >52.8999 2x +$0.0104
2633530 bilqa 09:02:18 $0.0104 83.9582 >52.8999 2x +$0.0104
2633529 bilqa 09:02:15 $0.0026 47.1811 >52.8999 2x -$0.0026
2633528 bilqa 09:02:06 $0.0832 43.8470 >52.8999 2x -$0.0832
2633527 bilqa 09:02:03 $0.0416 22.5868 >52.8999 2x -$0.0416
2633526 bilqa 09:01:59 $0.0208 15.3223 >52.8999 2x -$0.0208
2633525 bilqa 09:01:54 $0.0208 62.3980 >52.8999 2x +$0.0208
2633524 bilqa 09:01:52 $0.0208 75.9063 >52.8999 2x +$0.0208
2633523 bilqa 09:01:50 $0.0208 88.8477 >52.8999 2x +$0.0208
2633522 bilqa 09:01:46 $0.0104 46.4188 >52.8999 2x -$0.0104
2633521 bilqa 09:01:44 $0.0104 57.6785 >52.8999 2x +$0.0104
2633520 bilqa 09:01:20 $0.1664 49.9546 >52.8999 2x -$0.1664
2633519 bilqa 09:01:18 $0.0832 22.6366 >52.8999 2x -$0.0832
2633518 bilqa 09:01:14 $0.0416 25.5020 >52.8999 2x -$0.0416
2633517 bilqa 09:01:12 $0.0416 93.0153 >52.8999 2x +$0.0416
2633516 bilqa 09:01:10 $0.0208 93.3711 >52.8999 2x +$0.0208
2633515 bilqa 09:01:07 $0.0104 17.2166 >52.8999 2x -$0.0104
2633514 bilqa 09:01:05 $0.0052 95.7655 >52.8999 2x +$0.0052
2633513 bilqa 09:01:02 $0.0026 16.7940 >52.8999 2x -$0.0026
2633512 bilqa 09:00:52 $0.0832 91.2203 >52.8999 2x +$0.0832
2633511 bilqa 09:00:48 $0.0832 87.8807 >52.8999 2x +$0.0832
2633510 bilqa 09:00:46 $0.0416 08.9060 >52.8999 2x -$0.0416
2633509 bilqa 09:00:41 $0.0208 34.0997 >52.8999 2x -$0.0208
2633508 qw1212ewew 23:10:48 $0.0600 29.4284 >52.8999 2x -$0.0600
2633507 qw1212ewew 23:03:31 $0.1000 69.8448 >90.5799 10x -$0.1000
2633506 qw1212ewew 23:03:30 $0.1000 96.7610 >90.5799 10x +$0.9000
2633505 qw1212ewew 23:03:29 $0.1000 91.4234 >90.5799 10x +$0.9000
2633504 qw1212ewew 23:03:29 $0.1000 89.2244 >90.5799 10x -$0.1000
2633503 qw1212ewew 23:03:28 $0.1000 26.8625 >90.5799 10x -$0.1000
2633502 qw1212ewew 23:03:28 $0.1000 24.3215 >90.5799 10x -$0.1000
2633501 qw1212ewew 23:03:27 $0.1000 57.5421 >90.5799 10x -$0.1000
2633500 qw1212ewew 23:03:27 $0.1000 61.3642 >90.5799 10x -$0.1000
2633499 qw1212ewew 23:03:26 $0.1000 46.2198 >90.5799 10x -$0.1000
2633498 qw1212ewew 23:03:25 $0.1000 47.5082 >90.5799 10x -$0.1000
2633497 qw1212ewew 23:03:25 $0.1000 36.0878 >90.5799 10x -$0.1000
2633496 qw1212ewew 23:03:24 $0.1000 20.7627 >90.5799 10x -$0.1000
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:
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  •      Total Wagered:
    $0.0000