Bitcoin Forum

tldr: I checked the provably fair hash before I bet, it was fe3b7dee0cf7cb7ea552995675306786. After I bet and LOST, the hash was 3509c457c164d3a813c833cb9f62a990. I have independent and irrefutable proof below.

https://web.archive.org/web/20160511020337/http://rollincoin.com/provably_fair_md5.php

I would like to direct everyones attention to the link above, which proves what I say. I have been scammed by rollincoin.com, my hash was changed after my bet.
find the original hash (fe3b7dee0cf7cb7ea552995675306786) on the site above, which captures the provably fair page as it was yesterday before i bet. Then go see rollincoins current provably fair page - the hash changed after I had bet.

current provably fair page:
http://rollincoin.com/provably_fair_md5.php

What is the internet archive?
https://en.wikipedia.org/wiki/Internet_Archive

Hash yesterday before bet:
https://i.imgur.com/ll1MY9Y.jpg


Hash today after bet:
https://i.imgur.com/VYxGRNo.jpg

Hey there. Nice catch there man. I would suggest archiving the site today as well in case they try to change it back to the original one.

Thanks

Wouldn't make sense for them to do that I think, that would make my bet a winner and they would have to pay me and backtrack on everything they said in their thread. :)

You provided fake.. at 11 may, today 12 may.
you have not checked hash before bet.
you begin check after lose!!!

why you received win?

WIN paid 0.1BTChttps://blockchain.info/tx/33113c23615e48ef3de9fe357b09f51f414399823b38e63a51c7e3cf89935cb8

WIN 0.08BTC paid!https://blockchain.info/tx/ed9cccc775012e372e42907521b5d8ec406ce8414068264c152a254a11335036


Do you want refund all win if you honest?

your screenshot fake!
11 may ;D today 12 may.

if you proof that is scam i will pay 1btc. to you!
you wrong!

no cheat please!!!


Thanks and Good luck!

you wrong!
you can check that is not scam!

make bet and check.

why you say if not try it??

need video proof!!!

this photoshoped fake!

This is photoshopped also?
https://web.archive.org/web/20160511020337/http://rollincoin.com/provably_fair_md5.php

Just shut up.

yes you scammer and cheater

why only 1 screenshot??

have not 9,10,12 may??
only 11 may.
Piece of shit..

What does that change? Were the hashes even different on 9 and 10 may? :D

You are pathetic

where screenshot another day.
you cheater and scammer

need check hash before place of bet and not yesterday

You either don't understand how archiving works or you are too desperate (and stupid) to admit you have scammed him. The screenshot that was taken yesterday by the archiving site can not be altered by the user that requested the archiving. You still refuse to accept that and you say that is photoshoped (while it's not possible).


He has a solid proof that on 11 of May (yesterday) the hash given to him was different that the one you have now on the site... Why would he need any more screenshots or a video. The proof is there for everyone to see that you have SCAMMED him.

Added negative trust.

People should realize that their "provably fair" implementation is already not provably fair anyway. They could literally show 10000s of hashes where the string is "Lose:......" and claim it's provably fair because the hash is the same. That is not how provably fair works.

Somehow, with such a crappy bad non-"provably fair" implementation, they still managed to cheat it extra - by changing the hash. That is like almost impressive.

Please ignore such sites.

Thank you for bringing some sanity to the discussion.

I really hate people like rollincoin, they really damage bitcoins reputation and represent the worst in the community.

I'd entreat rollincoin.com to pay 'em or this'll force 'em to close 'er business I'd guess. Anyway, there business' already gone down from now eh.

you wrong!

all md5 hash differnt!

provide different string with equal  md5 string, please?

Sorry bro, no way out of this one. You were caught red handed.


I know, you thought you would get away with it, scamming only the larger bets, once in a while. But justice has been served and your site will not scam anyone anymore.

Guess he's butt-hurt because he got caught red-handed. Nice catch rambeazle and to RollinCoin.com, better luck scamming next time mate.

To be honest I don't really understand what he is saying in that reply.

But just in case someone doesn't understand it. These are the hashes:

Your site	Archived site
8eaf55f805d3d051dfc5151073ac9efd 3509c457c164d3a813c833cb9f62a990 f43d368fb63b177a65fb65c511d74962 a85492b89a34cfd7dbedc7f8c91c16e1 4dfd43d2da6e1a0b65802721a6f3babf      b9119f5f3fbdfdccc1ac3c5f22361626      eb5c6ed29f8559b68bf4aa75adb13560      896ae32161795e8901d72977d1eb9e71 9e88dfe532d59e30b9b78d845b4c0e59  87b1dd267ff439349095cc9c961e3cd6	8eaf55f805d3d051dfc5151073ac9efd fe3b7dee0cf7cb7ea552995675306786      f43d368fb63b177a65fb65c511d74962      a85492b89a34cfd7dbedc7f8c91c16e1      4dfd43d2da6e1a0b65802721a6f3babf      b9119f5f3fbdfdccc1ac3c5f22361626      eb5c6ed29f8559b68bf4aa75adb13560 896ae32161795e8901d72977d1eb9e71      9e88dfe532d59e30b9b78d845b4c0e59      87b1dd267ff439349095cc9c961e3cd6

Clearly 1 hash was changed. The archived site is on the well-known site archive.org, which is not a screenshot and cannot be "photoshopped". Also some of the unused hashes are still the same today so that "day changed" BS doesn't make sense either.

what?

where archived another day?

before bet hash been 3509c457c164d3a813c833cb9f62a990.

he not checked md5 hash before.

this not proof!

Its funny, he obviously has to know how he intentionally scammed me, yet he decides to go with the "i dont understand, what are you talking about" defense.

Do you really think this will work? Seriously, what are your expectations? :D

You try to suggest that you change the hashes every day or something. But the unused future hashes are the same currently on your site and on the archived site, therefore the day is not relevant at all.




Anyway, not wasting any more time on this. Your site is an obvious scam and I assume everyone is smart enough to figure that out now.

we not change md5 hash.. show please screenshot 10 may or 9 may.

where screenshot of another day?
is not it strange?

is not proof,

you can check it.
make bet and check.
if you lose i refund bet to you.

please check.
this is not scam

Lol, looks like someone doesn't know what an archived site is. Accusing OP of photoshopping the hashes! ::)
Also the way he got butthurt simply proves his intention.

Thanks rambeazle for bringing this up.
This kind of behavior will often be looked over if you hadn't surfaced it.

/thread.

So Rollincoin, will you pay me the 1btc bounty that you offered if I proved you scammed me?


No problem. The fact that he can throw away his shitty site now is all the satisfaction I need. Disgusting thief. I will always try my best to fight against people like him. It is a pity that his kind is associated with bitcoin.

we not change md5 hash.. show please screenshot 10 may or 9 may.

where screenshot of another day?
is not it strange?

is not proof,

you can check it.
make bet and check.
if you lose i refund bet to you.

please check.

and make video!

You still dont get it do you. He's is showing an archive of your site on the 11th and the current one, it shows the hash was changed. He archived the site on the 11th because he believed he was defrauded by your site which so happens to be true. No shocker there though. Site looks like shit anyways

You didnt change it on 10 may or 9 may, you changed it on 11 may after I bet. You were unlucky that the internet archive documented the site before I bet. Oh it must be making you really angry.

If it is any consolation, I can buy your site from you. I offer you 0.1 btc. If you accept, take it from the amount that you scammed from me and now owe me :)

No need for that.
An archive of a site is much clearer proof than a video. Clearer than the blue sky as well.

And you are now instructing this since you've changed the hashes back.
Nice try. ;)

Rollincoin, you could change the hash back, pay out my winning and pretend nothing happened. :D

But then again, this thread will serve as a reminder of your ways.

we not changed hash if you have screenshot of 9 or 10 may you see this hash 3509c457c164d3a813c833cb9f62a990 

we not changed hash if you have screenshot of 9 or 10 may you see this hash 3509c457c164d3a813c833cb9f62a990 

i can sell it for 2btc only.

we not changed hash if you have screenshot of 9 or 10 may you see this hash 3509c457c164d3a813c833cb9f62a990

Stop asking for a screenshot of 9th and 10th of May. As rambeazle said you changed it on 11th AFTER he made the bet. Don't make yourself look more stupid than you already did.

I said this is not proof! we don't change hash.. he provide fake 100%!
proof is screenshot of 9,10 may.
and md5 hash equal hash today!
he really scam because lose bet..

He didnt provide any fake pics you dickhead. Archive.org is a website which archives your webpage. If you dont know what archive is then read here : http://www.dictionary.com/browse/archive

Using an incredible 10% house edge, and still it's not enough?

sir, i'm not scam and cheat.
is bad situation for me..
really fake.

i know it. and hash not changed.
you can try it and understand.

he is cheater and scammer.

Please explain how I could have possibly faked it. I would really love to hear your theory. How did the different hash get on archive.org?

I can think of a few :D

You work at archive.org and decided this is a good way to test your Admin powers?
You've hacked archive.org and edited their archive?
You've changed rollincoin's DNS-settings to a site controlled by you, posted the edited hashes, archived that site, and changed the DNS-settings back to the original?

There! Three very possible but highly unlikely explanations. Let's see which one rollinCoin chooses :D
[/sarcasm]

Rofl, I like the third one the most, I hope he goes with that one :D

1. There is a proof that CAN NOT BE FAKED that you have scammed him. Still you choose to call it fake.
2. You are calling him a cheater and scammer (as you are doing with me as well) only because he provided proof that you have cheated/scammed.
3. The more you lie the more stupid you look.

Nice. I knew the site was bad news bears...

I removed my positive trust for him. The "I'm to stupid to understand how to scam" trick ain't flyiing here.

is not proof!
he is scammer, cheater and hacker.
he want cheat game!
but can't make it.
he looser.

The more you think about it, the more obvious it becomes. Would this be a bad time to mention your shady behavior as well from the past weeks? I was planning on making a scam accusation on you, but I was waiting for OP to get paid just in case you run. Looks like there isn't a need anymore.

Second hash change. Watched it happen! Search the May 11 archive for the string 2ffc - this hash didn't change but the one immediately after it did. Compare to the current list - hash begins with 507b but the history archive shows a 2c30 hash in its place.

Note that this bet was the only one in recent history of that magnitude (0.05BTC). Larger bet == changed hash.

Cheating confirmed!

Edit

Just witnessed a third hash change. The original hash was 7caf30d6efa9fb33b44db579ffcd4d52 - a player bet 0.02BTC on it, and it changed to fc212fe6a78fdddac8d96d4995ad5682 on the list. Naturally, the wager was a loss.

Edit 2

.. And a fourth, almost immediately! 0.005BTC wager, original hash 2d12c1bde0305d035336ce144f29be13 displayed hash 3d18b097f856580e2f764d91a9efe374

The results of the bets are not generated in a manner that provides proof to the house edge. The results are arbitrary and the hashes show the results of the precalculated result. However the site is seen to be modifying multiple winning bets of larger sizes to become losers. For example, several seen cases are shown below.

The "provably fair" system in place is also weak and easily cracked allowing precalculation of results.

Here is the additional proof that bets are being modified to become losers:

Proof that the OP's previously identified hash was indeed a winning hash:

HA! Case closed. Nice work!

That's it? :D
You can even brute-force this :D No wonder it has to be changed afterwards :D

I would like to report as same user

RollinCoin.com - https://bitcointalk.org/index.php?action=profile;u=832985
KingOfBet - https://bitcointalk.org/index.php?action=profile;u=735396
btcmasterZ - https://bitcointalk.org/index.php?action=profile;u=667885

HackerBOSS - https://bitcointalk.org/index.php?action=profile;u=735396 - Not sure about this one, but at least they are connected from long date (check his trust profile)

First refund of Rollincoin came from https://blockchain.info/tx/9862f200a2f659cdd992b29d89ed32ab1c022cbd4d9abdf5e41c086b2affa2f1
we can see https://blockchain.info/tx/b588ca94ab2cf56eec7101f313ab53c6165756c19ff10fe1462c910b696cc88d is the owner addy, so 1JhpucForwjwakELNVD7u89N5PAPZnWRpr is his address
1JhpucForwjwakELNVD7u89N5PAPZnWRpr like to play secondtrade

he received the payment on 17aQSDsEooyTpyUy3raPcvakjDkWyha5g6, and check the address? what the game he play? secondtrade
now check what deposited on 17aQSDsEooyTpyUy3raPcvakjDkWyha5g6, https://blockchain.info/tx/2fdcc532e111a967bb5a0533a3ff4c8c37e0863a7e795b8d3107ba43e0c5eb89, <<< this address 1N3cqSwn7QfhwFqGTq2WMUUzHnnA3XfsJ4

check now who deposited on 1N3cqSwn7QfhwFqGTq2WMUUzHnnA3XfsJ4? <<< https://blockchain.info/tx/4973a16b0cfc74f3c7c4495383816f89c761d39ee52f96d6ec1ddbb8ae9605a7 <<< 1Ju5QeBcm1ETQ1s7xPbZ8SbYDJhym4jyQa

Now This is the point, check https://blockchain.info/address/1Ju5QeBcm1ETQ1s7xPbZ8SbYDJhym4jyQa

https://blockchain.info/tx/132b9dd5e6a6b9b0b5adffd0b175d9e568ac7ad4e4c9145dd82531516b877d28 - 1LhyhiJS845DSoZxWz7VShJEyqhtH3K5D (the 1,2x multiplier head)
https://blockchain.info/tx/df07ec729d2432414072b5701152b663888332b8ae54cc3235e97f2ea909619b - 1APwr5G5nuhsxff83JTWd7aSCM8QLpzTAR (the 1,2x multiplier tail)
https://blockchain.info/tx/75c166145d9a2645f74938a39b7d166aa067f3ee2cbefdf37d1a81f3996eabb4 the famous secondtrade he loves

The funny is... this transaction are made before he annunciate his website launch


now let's check...

https://blockchain.info/tx/25df6247b34e6e535bf5f60a8214bf1addb5efc71fa81b7be3fc896e08c2fda3 paid to this address 1JBhcpKqgd9nce5dUaSGU45MbNZTAJRVy9
https://blockchain.info/tx/b6a795e4f3b1321c92633990f807b92dcce153979b793f058cc9921c8ca1cbc4 1FFcoTtrueD3cUfvLi2WWPVBqk2tZu3VZs
https://blockchain.info/tx/e0cb708bf5b095f1cefb040a21f9ac7b253861597e67e3731f0c916e1d7e90fb paid to 1NiozbNu3ANiph83HuUU4Jri3aXQ4f9ChJ

wow, this three address use secondtrade too,

ok, now follow the 1JBhcpKqgd9nce5dUaSGU45MbNZTAJRVy9, every time the wallet is filling it (not payments after, the genesis of each address), backing arround 8 transaction...
https://blockchain.info/tx/4778898bb50c9a70d432757e9f051a0573bb2e22cd72262e618f4ee730f3eab5 OMG, we found the famous 1Ju5QeBcm1ETQ1s7xPbZ8SbYDJhym4jyQa again
follow the 1FFcoTtrueD3cUfvLi2WWPVBqk2tZu3VZs and 1NiozbNu3ANiph83HuUU4Jri3aXQ4f9ChJ too, oh, both give 1Ju5QeBcm1ETQ1s7xPbZ8SbYDJhym4jyQa OMG what a coincidence


absy the moderator, i don't found anything related with them - https://bitcointalk.org/index.php?action=profile;u=336412

Sentence: Now i understand now why KingOfBet and btcmasterZ is all the time talking about it, saying no scan, spamming his winnings all the time, anyone can check, just follow my instructions and all proofs are on blockchain and on this forum

I'm giving negative trust for them HackerBOSS, KingOfBet and btcmasterZ  too

NOTE: check at https://bitcointalk.org/index.php?action=trust;u=735396 KingOfBet trust profile
Lutpin 23: -0 / +7   2016-03-17   0.00000000   Reference   As of 2016-03-17, this account is up for sale/being auctioned off.

https://bitcointalk.org/index.php?action=trust;u=667885 btcmasterZ trust profile
HackerBOSS 0: -0 / +0   2016-03-15   0.00000000      Thanks. i insalled to you blockchain api for free! welcome

HackerBOSS is at least related is them too, or same user, can't proof using address because i don't saw hackerBOSS address