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Bet ID User Time Bet Lucky Target Payout Profit
2676320 hope 09:29:50 $0.0000 11.3674 >68.5999 3x -$0.0000
2676319 hope 09:29:46 $8.0000 45.6676 >68.5999 3x -$8.0000
2676318 hope 09:29:26 $0.0000 88.6246 >68.5999 3x +$0.0000
2676317 hope 09:29:25 $0.0000 70.0067 >68.5999 3x +$0.0000
2676316 hope 09:29:24 $0.0000 60.5828 >68.5999 3x -$0.0000
2676315 hope 09:29:23 $0.0000 68.5573 >68.5999 3x -$0.0000
2676314 hope 09:29:20 $0.0000 39.7796 >68.5999 3x -$0.0000
2676313 hope 09:27:38 $4.0000 46.5652 >68.5999 3x -$4.0000
2676312 hope 09:27:06 $0.0000 71.2507 <31.4000 3x -$0.0000
2676311 hope 09:27:01 $0.0000 72.6077 <31.4000 3x -$0.0000
2676310 hope 09:27:00 $0.0000 41.9844 <31.4000 3x -$0.0000
2676309 hope 09:26:45 $0.0312 64.9129 >52.8999 2x +$0.0312
2676308 hope 09:26:43 $0.0312 57.5358 >52.8999 2x +$0.0312
2676307 hope 09:25:15 $0.5000 47.9725 >89.5332 9x -$0.5000
2676306 hope 09:25:06 $1.0000 29.2185 >81.1599 5x -$1.0000
2676305 hope 09:24:58 $3.0000 38.4381 >52.8999 2x -$3.0000
2676304 hope 09:24:11 $0.9000 94.6238 >81.1599 5x +$3.6000
2676303 hope 09:23:05 $3.0000 47.9357 >52.8999 2x -$3.0000
2676302 hope 09:22:45 $0.0000 05.2435 <47.1000 2x +$0.0000
2676301 hope 09:22:44 $0.0000 76.6902 <47.1000 2x -$0.0000
2676300 hope 09:22:43 $0.0000 83.1924 <47.1000 2x -$0.0000
2676299 hope 09:22:41 $0.0000 59.1218 <47.1000 2x -$0.0000
2676298 hope 09:22:40 $0.0000 64.7284 <47.1000 2x -$0.0000
2676297 hope 09:22:38 $0.0000 94.7951 <47.1000 2x -$0.0000
2676296 hope 09:22:36 $0.0000 73.6193 <47.1000 2x -$0.0000
2676295 hope 09:22:22 $0.2000 76.7806 >52.8999 2x +$0.2000
2676294 hope 09:22:20 $0.1000 08.0908 >52.8999 2x -$0.1000
2676293 hope 09:22:08 $0.0500 30.5606 >52.8999 2x -$0.0500
2676292 hope 09:22:02 $0.0000 65.1583 <47.1000 2x -$0.0000
2676291 hope 09:18:04 $0.7100 36.8980 >52.8999 2x -$0.7100
2676290 hope 09:17:58 $1.4400 45.8227 >52.8999 2x -$1.4400
2676289 hope 09:17:55 $0.7200 24.7679 >52.8999 2x -$0.7200
2676288 hope 09:17:53 $0.3600 49.6502 >52.8999 2x -$0.3600
2676287 hope 09:17:49 $0.1800 90.6845 <47.1000 2x -$0.1800
2676286 hope 09:17:47 $0.0900 73.9697 <47.1000 2x -$0.0900
2676285 hope 09:17:42 $0.1600 12.8879 <47.1000 2x +$0.1600
2676284 hope 09:17:40 $0.0800 51.6480 <47.1000 2x -$0.0800
2676283 hope 09:17:34 $0.5600 53.0659 >52.8999 2x +$0.5600
2676282 hope 09:17:31 $0.2800 38.6562 >52.8999 2x -$0.2800
2676281 hope 09:17:29 $0.1400 67.1768 <47.1000 2x -$0.1400
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:
0
Commission of Edge:
20%


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  • Total Bets:
    0
  •      Total Wagered:
    $0.0000