99.9% Dice - Bitcoin, Dogecoin, Litecoin, Ethereum & Monero Gambling


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Bets are guaranteed to be fair because the seeds for the bet are known before you bet.

The formula is

Server Seed + Client Seed (->byte[4]) + Bet Number (->byte[4])
Double SHA2-512 hash the result
Keep taking groups of 3 bytes and converting to an integer, until a value less than 16 million is found. If you run out of bytes, hash it again and start over.
Find the value's modulus of 1 million
The modulus is the bet result!

You are given the server seed's hash. Once the bet has been placed, the server seed is available, and you can verify the fairness of the bet. For automated bets, all bets are made using the same server seed.

The current server seed hash is Get Server Seed Hash
Set the client seed manually

Here is the actual SQL function this site uses (error handling stripped out)

create function dbo.CalculateBetResult
(
	@serverSeed binary(32),
	@clientSeed binary(8)
)
returns bigint
as
begin
	declare @hash binary(64)
	declare @index int
	declare @r bigint
	
	set @hash = HASHBYTES('SHA2_512', @serverSeed+@clientSeed)
	set @hash = HASHBYTES('SHA2_512', @hash)
	while 1=1
	begin
		
		set @index = 1
		while @index <= 64 - 3
		begin
			set @r = cast(substring(@hash, @index, 3) as bigint)
			if @r < 16000000
				return @r % 1000000
			set @index += 3
		end

		set @hash = HASHBYTES('SHA2_512', @hash)

	end
	return -1
end

And here is some C# code (without any error checking) you could also use to verify results

static bool VerifyBetResult(string serverSeed, int clientSeed, int betNumber,
                            long betResult, string serverSeedHash = null)
{
    Func<string, byte[]> strtobytes = s => Enumerable
        .Range(0, s.Length / 2)
        .Select(x => byte.Parse(s.Substring(x * 2, 2), NumberStyles.HexNumber))
        .ToArray();
    byte[] server = strtobytes(serverSeed);
    byte[] client = BitConverter.GetBytes(clientSeed).Reverse().ToArray();
    byte[] num = BitConverter.GetBytes(betNumber).Reverse().ToArray();
    byte[] serverhash = serverSeedHash == null ? null : strtobytes(serverSeedHash);
    byte[] data = server.Concat(client).Concat(num).ToArray();
    using (SHA512 sha512 = new SHA512Managed())
    {
        if (serverhash != null)
            using (SHA256 sha256 = new SHA256Managed())
                if (!sha256.ComputeHash(server).SequenceEqual(serverhash))
                    throw new Exception("Server seed hash does not match server seed");
        byte[] hash = sha512.ComputeHash(sha512.ComputeHash(data));
        while (true)
        {
            for (int x = 0; x <= 61; x += 3)
            {
                long result = (hash[x] << 16) | (hash[x + 1] << 8) | hash[x + 2];
                if (result < 16000000)
                    return result % 1000000 == betResult;
            }
            hash = sha512.ComputeHash(hash);
        }
    }
}

Previous (ID < 8764625845)

Bets are guaranteed to be fair because the seeds for the bet are known before you bet.

The formula is

Bet Number (->char[]->byte[]) + Server Seed + Client Seed (->byte[8])
Double SHA2-512 hash the result
Keep taking groups of 3 bytes and converting to an integer, until a value less than 16 million is found. If you run out of bytes, hash it again and start over.
Find the value's modulus of 1 million
The modulus is the bet result!

Your current client seed is

The current server seed hash is Get Server Seed Hash

Here is the actual SQL function this site uses (error handling stripped out)

create function dbo.CalculateBetResult
(
	@serverSeed binary(32),
	@clientSeed binary(8),
	@betNumber bigint
)
returns bigint
as
begin
	declare @hash binary(64)
	declare @index int
	declare @r bigint
	
	set @hash = HASHBYTES('SHA2_512', cast(cast(@betNumber as varchar) as varbinary)+@serverSeed+@clientSeed)
	set @hash = HASHBYTES('SHA2_512', @hash)
	while 1=1
	begin
		
		set @index = 1
		while @index <= 64 - 3
		begin
			set @r = cast(substring(@hash, @index, 3) as bigint)
			if @r < 16000000
				return @r % 1000000
			set @index += 3
		end

		set @hash = HASHBYTES('SHA2_512', @hash)

	end
	return -1
end

And here is some C# code (without any error checking) you could also use to verify results

static bool VerifyBetResult(string serverSeed, string clientSeed, string betNumber, 
                            long betResult, string serverSeedHash = null)
{
    Func<string, byte[]> strtobytes = s => Enumerable
        .Range(0, s.Length / 2)
        .Select(x => byte.Parse(s.Substring(x * 2, 2), NumberStyles.HexNumber))
        .ToArray();
    byte[] server = strtobytes(serverSeed);
    byte[] client = BitConverter.GetBytes(long.Parse(clientSeed));
    byte[] number = Encoding.ASCII.GetBytes(betNumber);
    byte[] serverhash = serverSeedHash == null ? null : strtobytes(serverSeedHash);
    byte[] data = number.Concat(server).Concat(client).ToArray();
    using (SHA512 sha512 = new SHA512Managed())
    {
        if (serverhash != null)
            using (SHA256 sha256 = new SHA256Managed())
                if (!sha256.ComputeHash(server).SequenceEqual(serverhash))
                    throw new Exception("Server seed hash does not match server seed");
        byte[] hash = sha512.ComputeHash(sha512.ComputeHash(data));
        while (true)
        {
            for (int x = 0; x <= 61; x += 3)
            {
                long result = (hash[x] << 16) | (hash[x + 1] << 8) | hash[x + 2];
                if (result < 16000000)
                    return result % 1000000 == betResult;
            }
            hash = sha512.ComputeHash(hash);
        }
    }
}

This site pays 99.9%. That's a house edge of only 0.1%.

It was inspired by others, and intended to be even simpler - as simple as possible! Just betting. That's it.

But their house edge is a full 1%, and ours is 0.1%. That's not a statistical difference of 0.9%... it is a statistical difference of 900% (10 times closer to "perfect equality"!)

There are no commissions or fees (other than 's built-in transaction fee - there's no way to avoid that!). Deposits do not require any confirmations before being credited to your account. Most withdrawals are processed immediately.

This site is fully funded by private investors. No further investments in the site are currently available.

The game is simple.

Select your bet size and your chance to win. The potential profit for your bet will appear.

Then place your bet, either high or low.

A number between 0 and 999,999 is generated. If the number falls within the high/low range you selected, you win.

You can earn by referring people to the site with your own referral link:

50% of the house edge of EVERY bet made by EVERYONE you refer gets added to your balance (50% x 0.1% = 0.05% of all bets). Whether they win or lose the bet, you still earn money.

Total wagered by your referrals is

Total paid to you is

More Earned - Pay Out Now

Here is some sample html you can use in forum signatures to promote your personal referral link:

<a href='[link]' target='_blank'><span style='color:orangered'>999dice.com | 99.9% Dice Payout | Earn BTC/Doge/LTC with 50/50 Referral Program | Play &amp; Chat</span></a>

Do not spam other dice sites. You can put the link in a signature, or email and skype it to all your friends, but don't spam. This site is new, but there are lots of betters to go around. Do it legit.

Referrer:

Referrals

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#	Name	Bets	Wagered

If you have any questions, suggestions or run into any troubles, feel free to contact the site owner by typing your message below. If you want a response, make sure to provide an email address in the message or under the "Accounts" tab. The site owner is often available in the "Chat" tab too as "Admin (1)".

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An API for programmers to integrate with the site is now available. A sample bot is included.

Your API key is Create

For questions, bug reports, feature requests, or any other help, please get in touch using the Contact tab.

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