I’m representing CoinPoker, a worldwide cryptocurrency-based poker room that’s launching its ICO this November.
We’re operating with Ethereum Smart Contracts and once the room will have been launched, we’re going to ensure full transparency via the use of blockchains. The RNG will be visible on blockchains, and the players will be able to see it after the game.
That together with the pain-free transactions thanks to cryptocurrency will solve many of the problems that online poker has been facing.

• Transactions will be immediate + accessible worldwide;
• RnG will be visible for transparency;
• Anonymity will be guaranteed;
• Fair play at the tables will be ensured.

+ HUGE Grand Opening Events with awesome prizes (15% of tokens distributed during the ICO will be returned during these tournaments).
What makes us different from other ICOs? Well, for one, we’ve got our MVP (minimum viable product, in our case – an app) ready to go, and we’ll be launching our MVP with play money before our actual ICO start!
Our official website www.coinpoker.com will be available early in November, and once it’s live, you will be able to read our Whitepaper for a very detailed look at our project.
Until then, if you have any questions about CoinPoker, I’ll be happy to answer them!

Paulius from CoinPoker

You can check our One Pager here:


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Edit/MH: Also see new thread: https://forumserver.twoplustwo.com/2.../#post54018430

If you're the only poker ICO who can tell me how much the rake will be I'll buy coins and tell my friends.

One poker coin ICO that hit near the top of google had a dev chat open where the operator was suggesting that they would just eat the rake because they could operate so cheaply.

For anyone who's interested in investing in these coins, can you give us some indication about operating cost/hand or at least rake/hand?

We will offer competitive rake with cash games raked at 4% with certain caps for different limits.

Looks like US based players are not allowed to participate in ICO?

Will they be allowed to play once the site goes live?

What limits are you going to offer?
How is the cash game lobby going to look like? Will people will be allowed to camp tables?
How are you planning on getting recreational players?
How will the Rakeback system look like?
How are you planing on fighting bots?

lol

We will initially offer traditional cash games and tournament play for the most popular games including Texas Hold’em No Limit and Pot Limit Omaha with a limit starting at the equivalent of 0,05€ for the big blind and all the way up to 5€. Starting with lower limits is expected to indeed attract recreational players. We will add higher limits according to demand, which could range up to 1,000€ equivalent per big blind, and eventually add more games among which Open Face Chinese Poker.

You can already see the actual lobby by downloading the app and test it by playing free money: https://coinpoker.com/download

Instead of providing traditional rakeback, CoinPoker will use a Blockchain based community reward system to transfer each month no less than 25% of tokens collected via the smart contracts back to the community, so it will insure that the recreational players are competing on an even playing field, instead of delivering rakeback to a selected community of members. You can find the details of this revenue distribution in the white paper: https://coinpoker.com/downloads/coin...whitepaper.pdf

Concerning the bots, Blockchain technology will help by identifying the unethical accounts. The CoinPoker fairplay and security system will monitor user actions to identify and eliminate unethical/robot play on a per account basis. For example, our algorithm will analyze all actions and each account to distinguish between human and bot-like behavior.

And what about the question above?

hey, glad you're here to fleece the members of 2+2, hope your ****coin sale goes well!

Q: how will you defend against bots?

A: the blockchain!

there's no question a ****coiner can't answer with "the blockchain!"

I have some questions for your head of security.

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Do you have a working implementation of a mental poker protocol?

Is your software open source?

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Sorry to spam but i don't what you to miss the question if you stop by. Your whitepaper links are broken, will it be posted before the persale/sale?

Yes, unfortunately due to regulations US residents can’t participate in ICO. But our legal team works hard to enable US players to play. Chances look great We’ll keep You updated on progress.

About implementation of a mental poker protocole, No, CoinPoker is not fully decentralized and so is not based on mental poker protocol. Fully decentralized poker today would face two big issues: each transaction (meaning each action on the table) is costly and very slow, so it would be not suitable for poker players. Our idea is different - we want to create next generation poker:
• Transparent & Fair - it should rely on the Blockchain to verify gameplay.
• Fast & Cheap - there should be zero latency between the user pressing any UI button and seeing the result. Moreover, it should avoid expensive costs of Blockchain transactions and data storage.
All this means CoinPoker will have centralized transactions for internal transactions/actions and decentralized RNG for full transparency. Please look at our white paper: https://coinpoker.com/downloads/coin...whitepaper.pdf it should be online now, at section 1.4. "RNG transparency on Blockchains" for more information.

Our software is not open source.

Thank you. I do have more question but I want to make them efficient so I'll take some time the white paper and ask them mostly at once.

Why does the operator provide a seed?

We provide a seed like a timestamp to secure random number generation. Phrases (seeds) supplied only by players will not guarantee random generation entropy for each hand, as they could be constant.

Did you say with out the operator input the RNG isn't provably secure?

yes, for example:
player-A, uses phrase: "apple"
player-B, uses phrase: "banana"
"apple" + "banana" => hash as random seed -> RNG engine, output: number
When you use same phrases (with RNG engine reseted) you will get same random seed, and so same number generated.
And it's all about additionally security. As all phrases will be publicly available on blockchain, without operator's seed you could easily find phrases of all players sitting on your table and predict random number generated (=cards).

The decentralized protocol relies on a centralized server for its secureness?

You are mixing notions.
CoinPoker will use centralised server for it's game play events.
But RNG will be decentralised in the way that all players will make impact for random number generation and later they will be able to validate it (we will provide public tools) to be sure that RNG is 100% transparent. House (operator) will not able to compromise it.

Ok, I should have been more clear. I appreciate the dialogue. Lets say your business is immoral and means to scam the players (from a customer standpoint I have to think this way). And so your server and the operations on it, which as I understand is not transparent (or open source), are made to attack the security of the output. Is it impossible to do so?

If the server operations are necessary for the integrity, and it is comprised, does this compromise the integrity of the output?

Thank you!

Thank you for your questions as well.

As all game play results (hand history) will be placed on blockchain, operator won't be able to compromise RNG output in any way.
All players will be able to change their phrases for RNG at any time. If operator will try to compromise RNG output, anyone could see it by checking/validating hand history.

I ran this by a few people that are more technical than me, because philosophically it doesn't make sense to me. They didn't believe it's decentralized either.

But I think I might have an understanding. I'm trying to understand something, so maybe I'm asking the wrong question. Is the shuffling and dealing ie cards protocol provably secure?

I'm asking if the operator can purposefully affect the security/outcome of the cards that are dealt to the players. Are the players trusting the operator in this regard?

Because if you need a server, then that serves as a 3rd party which is by definition a security whole. I understand that you mean to provided some 3rd party security...but is that also necessary for the cards. Is your shuffling/dealing provably secure?

(thx!)

ps If you say yes I'm going to ask for the technical protocol code ie whether or not its auditable.

Decentralization is the process of distributing or dispersing functions, powers, people or things away from a central location or authority.

Our RNG process will not work without players seeds provided, and so it's decentralized.
RNG will depend on different phrases of each player and so the output number.
We know, it may sound complicated, but actually this is very elegant and pretty simple solution.

Let us take previously example:
Before hand starts:
Player-A, uses phrase: "apple"
Player-B, uses phrase: "banana"
Operator, used phrase: "orange+time_stamp", and in centralized server:
"apple" + "banana" + "orange+time_stamp" => combined together and used as a seed for random number generation, and so card is picked up, for instance "9h".
This is logged and sent to blockchain.

Now you can open this log (where all phrases was used and all numbers generated) and validate RNG (engine and RNG algorithm will be provided as one of the validation tools publicly).
You will take "apple", "banana" and "orange+time_stamp", make a hash (a tool and algorithm will be provided publicly as well) and then supply it for RNG to check what output is (in this case you will get same number as in log provided, which will match "9h").

So, how operator could compromise this process?
- phrases used in RNG could not be changed, users will notice it.
- RNG output could not be changed, users will check it's validation.
- server could try to guess it's own phrase, in combination of 'apple' + 'banana' + 'x' => hash => RNG => to get output needed (compromised). But here is a problem: 'x' will use mix of random_phrase+time_stamp, and so the roll back process: output_needed (compromised) => RNG => hash => all_phrases (with time predicted) will took decades or may not be possible at all.

We hope it is more clear now.

do we have the possibility to playe there fixed limit headsup?

I think I got it. Now you DO have a back door for a super user account though right, if I understand? Sorry, or maybe you expect this, its just I can't endorse the project unless I can scrutinize it.

And I think I understand, its not the entire hand/deck that is revealed once the hand is made transparent?

Sorry, I don't understand it, could you be more specific?

After a hand or some amount of time, all random generated numbers (and all players phrases) used to pick a card will be public on blockchain.