Bitcoin Forum

Hi Everybody,

Welcome to =https://cryptnroll.com/ (https://cryptnroll.com/)

https://i.postimg.cc/k5vjPpvz/header.jpg

How to play?

https://i.postimg.cc/d1W4LZX9/how-does-it-work.jpg

Hope to get your feedback and participation!
We also have a Telegram group with the announcement of deposits and the winner, join us.
If you have any questions, let me know.

Cheers  :)

FAQ:

https://cryptnroll.com/faq

It seems fun but I have a couple of concerns:

• Quote from: https://cryptnroll.com/
  2. When you send bitcoin to participate in the round do not empty your wallet! (if your transaction leaves your wallet empty you will NOT participate in the round)
  Does it mean we should leave an excess amount of funds in the address that we'll be sending from so our deposits are counted for the round?
• Quote from: cryptnroll on March 15, 2021, 09:11:18 PM
  Each round takes 24 hours, after that, a random winner is picked based on his chances
  
  I do know that you mentioned in your "FAQ (https://cryptnroll.com/faq)" page about using random.org until you've developed your own tool but how can we be sure that you'll be using them for choosing the winners?
  ^{- AFAIK, there isn't a live video feed of some sort. Am I right?}

I checked your website and I can't find any proof that anything here is provably fair, meaning that winners can be manipulated, everything is collected in one pot and all transactions are probably done manually.
There is cryptnroll telegram channel with only 3 members, and according to your terms of service you say that you are registered in Malta without much information.

Using website calculator I am reducing the risk and increasing chances to win, but let's see what happens if I deposit 0.01 BTC.
I would have 92.97% chance to win.... 0.000757 BTC :)

https://i.imgur.com/XZDEgCP.png

Can you explain on this?

2. When you send bitcoin to participate in the round do not empty your wallet! (if your transaction leaves your wallet empty you will NOT participate in the round)

So basically you should have some balance left on your wallet so that your bet wouldnt failed?

wow for my Experience in gambling for years in crypto base sites I have never experience such things that I need to maintain balance on my wallet ?

What a strange rule , I don't know what's the story behind that , it looks like Hostages  our funds for us to remain playing , it seems Unfair and wasn't tolerable .

Hope that OP has a good answer on this .

Or maybe this is For a Competition round he was mentioning?

This one actually boggles my mind too because ever since on my gambling experience for several years on this market, this is the only time i do see such rule for you not to empty your wallet.

Talking sensively that theres no really connection if the wallet you have used on sending out your bets does or doesnt have balance left when you do make out bets because not all
would really be using up their main wallet or simply they do only have that amount left on the said wallet which means you dont have any options.

Wallet addresses or any platforms doesnt really connect wallets for it to have some connected functions.How does the platform do detect out that it doesnt have balance left on the wallet used?
In what purpose on having such rule? I dont really get it.

Jackpot sites like yours don't usually attract gamblers unless they provide something unique and creative which I haven't noticed in your site sadly.

The biggest problem with your site in my opinion is the TX times and fees associated with BTC currently along with the commission that you take from every win(Failed to mention in the ANN and site). What exactly is your commission percentage op?

You should have provided multiple payment methods like LTC, DOGE, XRP etc in order to address these issues.

Here's my honest feedback.

PLAGIARIZED TERMS AND CONDITION

ORIGINAL

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PS. LOL I think the whole terms and condition is just a copycat of other website's T&C.

The biggest problem is not about the fee but about the fairness of the game. Jackpot/lottery game using random.org? Oh come on, it is 2021 already and no one will be risking money for such lottery. Even if the site choose to use something like a live stream for the drawing, it will be something debatable about the fairness. The site itself looks like a cheap website,  it does not look like a gambling site which is created by an experienced people as what they claim:



Really 15 years experience but having a site like this?

Not to brag but I'd rather stay away from sites like this, there are legitimate sites like this and has more reputation why not risk your money. Best if they just changed that rule but I still doubt if this game will be popular, good for OP with the publicity though.

15 years of experience in Plagiarizing ...  ;D

Imagine they have that long experience but They need to Copycat their TOC?

and not even Bother editing a single Word from it.

15 years of plagiarizing should have taught them that they should change some things from what they are copying. I don't think that the year is a real thing, they just want to assure the players that they do not have anything to worry because they have experience. Man, I never frequent this board because I jump right in Gambling Discussion, but there are some scams that are being promoted here.

Didn't notice this earlier. Also, op himself is inactive and is clearly not interested in resolving our queries. This just proves that this site is shady in many aspects and should be avoided since there are better legit alternatives out there.

Scams are promoted now and then in literally every section of this forum(Not just the gambling board).

It looks like the OP has been caught with plagiarism, first red flag.

And then didn't bother to go back and answer all the queries, not to embarrassed them but to make it clear to us gamblers, second red flag.

So I will say that we shouldn't stay away from this site for now, until everything has been resolved.

That can make people greedy and not think about the risk because they will have the money to win someday. But if they remember that to win the jackpot, it will need more funds than they can not expect, and they do not know how much money they should spend before they can hit the jackpot. So if you want to try your luck, you better know how much money you will use and not forget to stop.

I don't think that it'll get resolve in the first place if OP's main agenda is to deceive other people from getting robbed. Moreover, I really do not see an honest service being offered here for the masses, its like randomly promoting a fishy website who doesn't care about other people's welfare nor their image in the community.

Does not mean to defend them (Crypt&Roll) I just have a silly question regarding this matter, what do you think if both of the sites are using "privacy policy generator" to write their policy?

Since I know that kind of service are exist on internet moreover their policy looks quite simple

Hi everyone,

I will answer all your questions today, I am new to the forum, I didn't notice the thread was moved.
I am not here to deceive anyone, on the contrary, more games are planned, we want to build a solid community with your help.

I sincerely apologize for the delay, I am preparing all the answers.

they are new thats why they only have 3 members so far  but in the game your going to risk 549.69 usd ( 0.01 btc ) to win  38.48 usd ( 0.000757 btc )  .

 your chances are high but you once said that the site may not be a provably fair but even if it was provably fair there is still a chance that you could loose after having that calculated chance  but im not stopping you ,  just a friendly warning ;) goodluck  .

I think most of your questions would be answered here (keep them coming):

Q: Empty wallet questions
A: I didn't think that this would cause so much misunderstandings, we will definitely include the answer in our FAQ. The fact is that when we talk about the Bitcoin blockchain, we cannot know the" from address "according to this theory - https: / /en.bitcoin.it/wiki/From_address.
We believe that one of the methods with the greatest certainty is to determine the winner's wallet address from the "out" transaction block for the "change" transaction
For example, we can consider one of the transactions of our participants - https://www.blockchain.com/btc/tx/854acdd3a778fc3ac4ca7b541dbbbdaaa6d995e6d7ea10ab7c4496dc2a564f93
where one of the recipients is our wallet - 1NDkLCpf15cicTXChHZfo2YS12otkdC5NZ
In this case, we can conclude that the second address from the out block is the participant's wallet.
You may question also: "but why are you not taking the wallet address from the in block"? - there are 2 main reasons for this:
1. Some cli wallets, after the transaction, create a new wallet for change, and access to the old one may be lost
2. In some transactions there are several wallets from the block (for example, here https://www.blockchain.com/btc/tx/257ce19d4da2c8b8c7f3118344e380d8abb4cf801988539d1ae80febd436f37d), and since we have no “connection” with the participant, we cannot determine to which one the winnings should be sent.
This solution is necessary in order to lower the entry threshold for participants and maintain anonymity, since we have no registrations and no connection with the participant, except for his transaction.

Q: I do know that you mentioned in your "FAQ" page about using random.org until you've developed your own tool but how can we be sure that you'll be using them for choosing the winners?
A: Regarding random.org
Thank you for your question, we have just launched this project with minimal investment and are testing the interest to this service.
We are indeed using the random.org platform through the official open api to select the winner. We still didn’t implement a tool for transparency, we wanted to get your feedback faster.
In short, we use the generateSignedIntegers method (more details in the documentation https://api.random.org/json-rpc/2/signed), and you can verify the authenticity through the verifySignature method. More detailed instructions will be published later, after testing the hypothesis about the feasibility of this method.
Also, we will be grateful if the community will advise us for the best way to choose a winner.

Q: The Privacy policy and Terms and condition plagiarized
A: They are not plagiarized, I used a website to generate them, they are pretty basic Terms of use and Privacy policy.

Q: The website looks like a cheap website?
A: I don’t understand your disrespect, a lot of time and money was invested into this website and we just launched, if you give criticism at least make it constructive.

Q: You should have provided multiple payment methods like LTC, DOGE, XRP etc in order to address these issues.
A: That's right, we fully understand this. But the point is that, as described in my post:" ... my first BTC game project "- we do not have answers to many questions, so we want to develop it step by step by listening to the opinion of the community in accordance with the "Lean software development" methodology (https://en.wikipedia.org/wiki/Lean_software_development)
We want to build a base foundation on which new functionality will be added in the future

I welcome you to join our channel!  :)

That statement coming from Op is clearly trying to catch someone's attention, and I don't think this can be considered legit. Much better if we seek our luck to those famous sites which comes after our welfare and not for their own benefit. Hopefully there's a clear definition of their service, so everybody won't think it as a mess because we need to fully acquire the truth behind speculations.

I'm not familiar with such service but do you think that such service will give exactly the same words/sentences for different sites/projects?
I also doubt if this site uses such service, they claim to be a 15 years experienced group of people in this field so I have high doubt that experienced people will use such service as they should be able to create it themselves easily.

Our experience was on other projects, not cryptocurrency.

This is our first cryptocurrency game, we are very open for listening to our users, I have explained extensively on why the wallet should not stay empty, we need to identify from who we received the transaction

You should first understand the importance of true randomness and ability to verify that your game is provably fair, and I don't think using random.org and manually entering values is good enough.
It is understandable that you are just testing stuff and interest of people, but it would be much better to first use Bitcoin testnet or maybe even Lightning Network with smaller amounts until you make some improvements.
We saw many fishy games and fake btc doubler websites that people are suspecting every new website is a scam, and I am not saying your website is that, but people are just not willing to spend their bitcoins on some risky testing game website.
That is just my 2 satoshis.

Thank you for your feedback! I sincerely thought that random.org would address true randomness. Now I understand that people have issues with it, I will update on this on the upcoming days. I just want to clarify that we tested with testnet before the actual release, the system is fully operational, I invite you all to our channel (https://t.me/joinchat/TTqvJi9w8UejBv9-) to how it's working now, you don't even have to participate. I understand there were a lot of scams, I am here to convince you otherwise. Join the channel and see how it's working.

I have seen some previous rounds on your site. Does it mean, there are real players before or those are your test rounds? You have to understand that players here are more careful because we have seen a lot of projects trying to screw naive players even with this randomness stuffs. If you want to stay in the game, you will listen what others are saying here. But of course, weigh your options as well. It will take time to earn credibility and trust.

Also, what is the minimum number of transactions for a specific round to go thru?

Highly believing that those are just test or trials
https://i.imgur.com/3pKtagt.png

Even though he would deny it then we cant still prove out if those are actual players.

That's possible, IMHO most of those services will give the same sentences depend on your configuration when generating it.
I've been trying to look for which service might they are used, it seems they generate it through https://getterms.io

I also try to generate it by myself (with random configuration) through that service and as you can see below it was completely same



To be honest they experiences are questionable since this field still related to financial problems and gaming experiences nevertheless they are not able to create their own policies.

The transactions on the transactions page are real, we gave the website to friends and family and ran some rounds. For the round to draw a lucky winner we need at least 2 transactions. If someone deposited and there only 1 transaction, the round will stay open for another 24 hours with that transaction of course.

As I wrote, real rounds, the players are friends and family

You made a perfectly valid point when it comes to dealing with change addresses, outputs and multiple inputs from different addresses but perhaps you should reconsider the registration part ^{[it doesn't have to ask for a lot of things to expose someone else's identity]} while adding few more steps to ensure others could easily understand your rules...

Steps:

1. Generate unique addresses for each user as opposed to unique addresses for each round.
2. A simple registration process ^{[or just a way to submit some information]} that would allow each user to include their transaction ID ^{[based on unique deposit addresses]} + a return address in case they become the winner of the round.
^{- As long as you're able to temporarily save such information in the database [until each round is done and dusted], it doesn't even have to ask for emails or other sensitive things.}

We wanted to avoid registration at this point, because it's another step in the process, we specifically wanted to get rid of it in order to simplify the process. it is much quicker to enter the pot without it, you just deposit and your in, and there are 2 simple rules to follow. In addition to registration, the user will still have to attach his transaction to his account.
The drawback of this type of mechanism; the entire jackpot will be spread across a large number of wallets, this means that the jackpot for the winner will have to be transferred from each wallet separately, which means that a commission must be paid for each transaction. Now imagine that 20 people took part in the jackpot, the entire jackpot is stored in 20 different wallets, and in order to pay the winner his prize, you will have to make 20 different transactions.
Another factor is gas price, it sometimes gets very high +- $ 30 per transaction, the winner will lose 600$ from the jackpot. This is a high amount and many people would be deterred from participating if they see that deduction.
Nevertheless, we will, of course, consider implementing this at a later stage when gain more users and the pots will be extensively bigger.

Can anyone suggest on the "ability to verify that your game is provably fair", currently working on that. Maybe some preferred methods

I have seen the platform and it is not bad, what I do not know very well is whether to completely trust random.org, haven't you tried to try Provably Fair? it is better since it has the best acceptance within the forum, remember that here reputation represents practically everything, and there are many famous sites that use it and everything is going well.

You say that the players are friends and family, well if we trust your goodwill, what times are they available? 24 hours is impossible, do they also have some bots? for the platform to move?

You can't identify the person when he uses a mixing service or CoinJoin wallet.

Have you implemented a provably fair system on your projects (Fintec and gaming)?

@webtricks fully explains the gist on how one can identify the fairness of every roll and how does it happen under the hood. I am not just sure on how you can properly integrate the verification to your website but you can still have a rough idea about the program algorithm. You can also check other lotto based game to get the gist on how they applied in their site.

[1] Do you verify every bet as a gambler? Provably Fair Guide. (https://bitcointalk.org/index.php?topic=5227525.0)

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Ps. Apologize for accusing you that you have copied your T&C, I just didn't know that such service exist. ;)

You can start by reading how it works on Wikipedia, but most casinos are probably using some open source algorithms or blockchain hashing for that purpose.
Checking links in references will also help:
https://en.wikipedia.org/wiki/Provably_fair_algorithm

Here is one more interesting source of information:
https://bitvegas.com/crypto-casino-guide/provably-fair-gambling/

You are correct, we are currently working on a Provably Fair mechanism, I hope by next week we will have the full process so you can actually see the verification was done. We did some research, and random.org is a solid service when you are using their api to Draw a random winner (again, we will have a full description coming next week, in the meantime, we already updated FAQ on the website)

Good, thank you for your reply,

I think that when they integrate Provably Fair it will be all different, random.org may be solid but here in the forum when there is some uncertainty about the systems it is better to take it into account since experience is what determines. The improvements in the platform will represent success in the near future, in addition to entering the world of gambling on the right foot at this time is a golden opportunity because of how the Bitcoin market is.

You are correct regarding CoinJoin, we currently do not support this, but it is on the list of development, we will allow each user that would participate in the round to attach his desired wallet (for the prize). I will also update you regarding these wallets in the FAQ section.

We are already implementing the provably fair system, as soon it is up, I will send update the main post.

i trust random.org because this was the main software use by streamers in social medias that i follow to draw and pick a winner but thats acceptable if they dont use provably fair because they are not related to crypto but here in bitcointalk everything here is related to crypto and we dont use random.org here ,
 it was the provably fair system is the popular system that crypto nation use especially if your business is a gambling sites .

We have implemented an RNG verification system and the whole process of choosing a winner is described here https://cryptnroll.com/rng_verification (https://cryptnroll.com/rng_verification)

Updated the main post!   8)