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Bet ID User Time Bet Lucky Target Payout Profit
2194991 phapsuhs 02:52:52 $0.0000 71.1799 <47.1000 2x -$0.0000
2194990 phapsuhs 02:52:50 $0.0000 45.7395 <47.1000 2x +$0.0000
2194989 phapsuhs 02:52:44 $0.0000 35.3316 <47.1000 2x +$0.0000
2194988 phapsuhs 02:52:36 $0.0000 19.5376 >52.8999 2x -$0.0000
2194987 medo44 12:21:18 $0.0000 56.0477 >52.8999 2x +$0.0000
2194986 medo44 12:21:15 $0.0000 01.0871 >52.8999 2x -$0.0000
2194985 medo44 12:21:02 $0.0000 18.0927 >52.8999 2x -$0.0000
2194984 medo44 12:21:00 $0.0000 25.4814 >52.8999 2x -$0.0000
2194983 medo44 12:20:59 $0.0000 26.3563 >52.8999 2x -$0.0000
2194982 medo44 12:20:42 $0.0000 54.4846 >52.8999 2x +$0.0000
2194981 medo44 12:19:42 $0.0000 42.4085 >52.8999 2x -$0.0000
2194980 mujsapri 09:29:17 $0.0000 79.5868 >52.8999 2x +$0.0000
2194979 mujsapri 09:29:14 $0.0000 03.7732 >52.8999 2x -$0.0000
2194978 mujsapri 09:29:12 $0.0000 83.4967 >52.8999 2x +$0.0000
2194977 mujsapri 09:29:10 $0.0000 79.9775 >52.8999 2x +$0.0000
2194976 mujsapri 09:29:06 $0.0000 66.2891 >52.8999 2x +$0.0000
2194975 fkloo 21:52:59 $0.2200 52.0629 >43.5927 1.67x +$0.1473
2194974 fkloo 21:52:47 $0.5500 94.4132 >43.5927 1.67x +$0.3684
2194973 fkloo 21:52:45 $0.0002 79.8912 >43.5927 1.67x +$0.0001
2194972 fkloo 21:52:45 $0.0002 70.1218 >43.5927 1.67x +$0.0001
2194971 fkloo 21:52:44 $0.0002 37.6452 >43.5927 1.67x -$0.0002
2194970 fkloo 21:52:43 $0.0002 95.4472 >43.5927 1.67x +$0.0001
2194969 fkloo 21:52:43 $0.0002 45.9942 >43.5927 1.67x +$0.0001
2194968 fkloo 21:52:42 $0.0002 53.4489 >43.5927 1.67x +$0.0001
2194967 fkloo 21:52:41 $0.0002 53.3737 >43.5927 1.67x +$0.0001
2194966 fkloo 21:52:40 $0.0002 25.1091 >43.5927 1.67x -$0.0002
2194965 fkloo 21:52:39 $0.0002 14.1285 >43.5927 1.67x -$0.0002
2194964 fkloo 21:52:38 $0.0002 95.4078 <56.4072 1.67x -$0.0002
2194963 fkloo 21:52:37 $0.0002 79.5980 <56.4072 1.67x -$0.0002
2194962 fkloo 21:52:11 $0.5000 07.6776 <47.1000 2x +$0.5000
2194961 fkloo 21:52:00 $0.6200 66.0109 <55.4118 1.7x -$0.6200
2194960 fkloo 21:51:57 $0.0003 45.3776 <55.4118 1.7x +$0.0002
2194959 fkloo 21:51:56 $0.0003 13.3088 <55.4118 1.7x +$0.0002
2194958 fkloo 21:51:56 $0.0003 71.1364 <55.4118 1.7x -$0.0003
2194957 fkloo 21:51:55 $0.0003 64.0529 <55.4118 1.7x -$0.0003
2194956 fkloo 21:51:54 $0.0003 51.6039 >44.5881 1.7x +$0.0002
2194955 fkloo 21:51:53 $0.0003 74.5138 >44.5881 1.7x +$0.0002
2194954 fkloo 21:51:53 $0.0003 51.4018 >44.5881 1.7x +$0.0002
2194953 fkloo 21:51:19 $0.0157 78.8627 >44.5881 1.7x +$0.0109
2194952 fkloo 21:51:18 $0.0157 80.0940 >44.5881 1.7x +$0.0109
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:
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Total Paid:
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Depositors:
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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