Uhm, your site says the timestamp is 1484500402 (= :22) and the result hash is:



So you agree with me that there is no fixed timestamp for each transaction and you could just choose a timestamp that makes the player lose?

a02974f0a657c5eddac1ba337edfe6697bb643375eb7ede8df0d6c851d51054a

See this relatively big loss of BTC0.05 on crazybtrade.com:


Timestamp 1484500402 =    Sun Jan 15 17:13:22 2017 UTC

If you look at the transaction on blocktrail:

https://www.blocktrail.com/BTC/tx/0ea617a32f00d73d2e6d48d12adc08e60182ae12efab336dc965bbae6861f047

Received Time: Sunday, January 15th 2017, 17:13:25

Can you see, how blocktrail got this transactions a few seconds later? Do you realize there is no way for us to verify which timestamp is correct?



Let's calculate the results with those 2 different timestamps
First result of crazybtrade, SHA-256 of:
=
Since the first number is a 0 - and the bet was on "odd", the result is a loss.

Let's see what happens if we change the timestamp to the one on blocktrail (a trusted block explorer):

=
Since the first number is a 7 - and the bet was on "odd", the result is a win. So that player could have won according to the time of the trusted block explorer Blocktrail.

So you're saying the information he has given so far could suggest he isn't trying to scam? With just the doubt that he may be lying of course.
Althouhg, if the scammer does still exist, they could still engineer his system and remove the money from that wallet (although the 1vs... address that he owns is not linked to any other account and does hold the most bitcoins and is what the other addresses pay to and the winnings are paid from)

If he really is the same scammer as that RollinCoin guy, this is an interesting development. On RollinCoin he faked the hashes to be a losing result. Since that site had a decent provably fair method - we actually could detect he was rigging the results and therefor see that he was scamming his players (and stop it by warning them.)

However with this new "provably fair calculation", "rigging the results" literally cannot be detected - since it's not provably fair in the first place. Pretty smart in a way I guess. Or maybe people like this "Legendary" member can just stop spreading the misinformation of the claim of provably fair so people might stop putting their money to this scam site.

Based on your PM @crazybtrade I assume I can merge my bets into one.

Here is my bet tx for the next one = 0117dd64edf4672f2953b0a82d9984eac80cdfcc55a612bcb878f0d856e99a04

Proof is here: blockchain.info/tx/0117dd64edf4672f2953b0a82d9984eac80cdfcc55a612bcb878f0d856e99a04

Please add my bets sir,
0ea617a32f00d73d2e6d48d12adc08e60182ae12efab336dc965bbae6861f047
38a465efee2498f0865720313577f1ffe979782b33aca33818abf8c5281a105c
b18544ea223dfb6d2b56602d3b8f820d0ccd844b2b47a8a510d9f59c850c1fc9
THX!

Did you even read the title of that paper? "Freestart collision for full SHA-1".

We are talking about SHA-2 (includes SHA-256 and SHA-512) - used by the dice sites.

You CAN yes, but it's highly unlikely.

sha has 2^256 different combinations, or 1.15x10^77. using the total bitcoin hash rate of about 2,467,177,537,000 million hashes per second, it would still take about 7x10^56 years to have about a 50% chance of having cracked your seed.
That's 7 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 years
Many people don't understand the significance of this many zeros. For instance, the latest estimates put the universe at 13 772 000 000 years old.

Entropy would likely run out long before you've had a 50% chance of cracking your seed. Meaning the universe is going to die long before you're likely to crack your seed.

Sha512 is even longer, as it has 2^512 combinations, or 1.34x10^154

But technically you can get lucky and hit it on your first try.

Edit: I don't understand how the sha algorithms work (my math is not nearly good enough for that) but as I understand, simply having a hash collision won't be good enough for the RNG purposes. You need the exact same match. For instance:

Hello and qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnm might result in the same hash, but as I understand the hashing algorithms, 1:Hello:clientseed and 1:qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnm:clientseed is NOT going to give you the same hash, which means the numbers you're going to get from the RNG is going to be different. Any cryptography boffins are free to correct me if I'm wrong about this.

#busted.

Way to go the extra mile.
What should prove the obvious, crazybtrade is full of shit and everything they said in this thread so far was either wrong due to a lack of knowledge or an outright lie.

Just to get some more info. about the link of satoshibox , I emailed their support asking about the upload date of above file ^^^. Not only they gave me the upload date of the file link but also they considered it as a good suggestion which they will be soon adding it on their site (about upload date against the file to be mentioned on the page) .

So here is the email I got yesterday from their support.

and here is the email id of satoshibox.


It was really a great help @SatoshiBox.

Added,
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wallet: 17M5nmVVyo9MbUCd1QD82gekGF1n3ydnjs

Here's my entry:
tx = 3f01872d1e958616e4643d96be666b6d2dc2fb20057e6fde9bb4942a5b9c2a32

proof = blockchain.info/tx/3f01872d1e958616e4643d96be666b6d2dc2fb20057e6fde9bb4942a5b9c2a32

https://blockchain.info/tx/ac91c605ff9f695b8d6deffa6efe67ff772aa268d3e14a4571816cab1f8ead54
never win?

added
ca4974f4b93d08d4f991e848ee05dfccd7851ed0e3171f1687c3062da5467339
9ade2bd674d1f6857d6b5c494ea0879617cd2dc996f659afa1d723a9140db2e7
b7a72395cc0e575bae8760e4a54fb22b8652cc1b78d50be53a04396fdffe5399

wallet: 1GEeC2tiwtigc8mQUY9XcnSWh9AiQvGDpG

What about the negative trust about the provably fair thing?

Could you put your piece of mind on it and try to explain us why you are right?

It seems like too many people are claiming that something is sketchy here, would be happy if you could make a detailed post the explains everything.

Unless you do that, I doubt if someone will trust your website with more then 5 bucks.

Add
58ae1534ad9dd4518e1d4375457c7578d16f16516a31f3bdfa46966ae41c947a
wallet: 1GEeC2tiwtigc8mQUY9XcnSWh9AiQvGDpG

added:
https://blockchain.info/tx/5512dea8de6cf54a4cdc21b67bc0ae128e8c9e3c76b2cca21d0329622ae297cd
addy: 1FeYFvTfybBn4zmsxoDPM8LKErDUbXxAXr

wager added
https://blockchain.info/tx/52635faf5d911b68c92070dbb773fafbeb9340ff1770c36ac2fc2012098a9e2b
addres: 1FeYFvTfybBn4zmsxoDPM8LKErDUbXxAXr

Join
dd9b6a915ba2c4acd0957be1e409dfe9af7bc3aa72d86284724ec9b41176c1d7
wallet: 1GEeC2tiwtigc8mQUY9XcnSWh9AiQvGDpG