Bitcoin Forum

Hi Bitcoiners,
 
I'm proud to announce my exciting website, CoinPrize.com (https://coinprize.com) -- a NASDAQ stock-betting game using bitcoins. All data comes from Yahoo Finance that makes it quite different from many casino games. I would say https://coinprize.com is the fairest game, simply because it solely depends on the NASDAQ data, no server side generated randomness involved, completely provably fair for all players.

It’s also different from casino games because you’re not betting against the host. Instead, you’re betting with the other players who make opposite choices to yours. That means the more people who are betting against you, the more you can win. So invite your friends, and spread the words!

Here’s how it works: For each betting round, given the last close price available at the moment you played, you bet increase or decrease on the close price of the given forecasting date. If the close price of forecasting date is higher or lower than the last close price just like what you predicted, you win.


Pretty much like satoshidice.com, you don't need to register for an account to play and bitcoins are sent back to the original input address when you win. Just start your bitcoin wallet -- let's say bitcoin-qt, for example -- copy the address you are betting on -- say, you bet on GOOG to grow -- then copy the address under the green label "grow address" -- and enter the amount of BTC that you want to bet and send it to that address. There’s a minimum bet of 0.1 BTC and no max bet. The more you bet, of course, the more you win in proportion to the total amount bet by the opposite participants in relation to all winners. Like we said, you win more when more people are betting against you.



Here’s more about the rules:

• Winning a forecast round means the forecast close price rise or fall as what you predicted, and the absolute value of the forecast close https://coinprize.com/promote/img/cp-forecast.png  price minus the based close price https://coinprize.com/promote/img/cp-based.png is larger than $0.01. But if the absolute value is less than or equal to $0.01, host wins. To write it in formula: If |forecast_close_price - base_close_price| > $0.01 you or your opponents wins. If |forecast_close_price - base_close_price| <= $0.01, host wins.
• The minimum bet is 0.1 BTC. Any input that is less than this amount will be returned during that transaction’s payout time. This may take more than 24 hours but less than 48 hours, depending on the time the transaction is being received during the entire betting day.
• There's no maximum bet. The more you bet, the more you win in proportion to the total amount bet by the opposite participants in relation to all winners. If no one bet against you when betting day is closed, you get all your bitcoins back.
• CoinPrize.com as the host will share 19 percent of your winnings excluding your original bet. If you bet 0.3 BTC and have won 1.0 BTC, for example, then you will get 0.3 + 0.81 BTC -- or 1.11 BTC total.

We totally understand that using your NATIVE LANGUAGE is your preference,  That's why coinprize.com has supported 12 LANGUAGES to cover most of the world population, and we are continuously adding new languages and feature to different countries and languages.


What if you have questions? There's bunch of ways that you can reach our execellent support team:

• Email: just send any questions to stock [at] coinprize [dot] com, and we will give you a reply quickly.
• ChatRoom: http://tinychat.com/coinprize You can not only talk to our support team, but also we created a chat room where you can chat with other players as well!
• Google+: https://plus.google.com/107754003037008940330/posts Follow us on Google+ and get connected!
• Skype: skype:coinprize.com, Skype number if you prefer instant messaging.

Enjoy the game and get rich faster!

We are proud to say that CoinPrize.com is the FIRST and TOP NASDAQ binary option game in bitcoin over the entire web.

NASDAQ stock trends are not like pseudo generated random numbers, they are predictable in high probability, even someone like you who never play stocks before can easily predict its trends from the historical OHLC graph. Take GOOG for example, they are more periodic, and when goes up, it usually goes up for days, which means you are more likely to win if yo can find the patterns. start trying with 0.1 BTC and enjoy the Wow moments!

Since we don't have our own accounts, would we lose our current bets if we clear our browsing data before the betting ends?

You would never lose anything All data in your browser can be cleared, you can refresh, close browser, or clear cookies, clear histories, caches in browser but your bets will never lost. Whenever you sent bitcoins in, your input address is used as payout address.

Take this transaction for example: https://blockchain.info/tx/0962b64b0c908ce3235bd16205d65bdfa03bbe3a5caf4c93882cb866936a063e

This transaction sents 2 BTC to AAPL UP address "19jLFB6cKVyx4oHTQTtLZ2ph5arBKQqMJZ ", and it's input address (address of the bitcoin owner) is "1HKPKvCcWMymTiWLKrFvMqgQhtfVDQxsdM", when he wins, bitcoins will be sent to his wallet using this address. If you sent to the opposite address as him and you win, all bitcoins AAPL stock in current round will be sent to your input address in the same way.


Let me know if you need more help.

Nice! I like your concept. I'll go check it out, thanks!

No problem!   :D

19% vig on what is essentially a coinflip is pretty high.  I don't see too many people doing this with this kind of fee.

Oh yeah and ties go to the house!!! What is that about?  Pretty greedy if you ask me.  Might as well go play Keno.

The reason of 19% is because we are planning a big contest next year where most of the house percentage will go into big prizes for hundreds of winners each year. We are trying to make the game more engaging and interesting. Also, just wanna to point out that the 19% ONLY takes on the winning amounts excluding the original bet.

And our development team and sales team is making efforts day by day to make it the most amazing game amount all bitcoin websites.

New round started last night 10:30pm (Aug 14th) and it's using Aug 14th close price to forecast Aug 16th close price. To involve in, send your betting to the corresponding bitcoin address before tonight 10:30pm.

On your site you're assuming that the sender control the private key of the address that sent the funds to your site, But this doesn't happen all the time. You must warn the user about the use of shared wallets.

You are right, will do it right now. Do you know what shared wallet services actually sharing private keys? I know mtgox does, what about blockchain.info and coinbase and other services?

Just so I understand, you place your bet when the NASDAQ is closed, and you bet it will either go up or down at the next close after a day of trading right?

Or can you place a bet while the nasdaq is open?

You are right, let's say today, you know yesterday's close price, you will gonna forecast go-up or go-down for tomorrow's close price, you can bet at anytime, 24 hours 365 days, server will jump over weekends and holidays, which means you can still continue betting on weekends and holidays. For example. if you bet on Friday, Saturday or Sunday, the last close price that is based on is Thursday's close price, and you are forecasting Monday's close price, while if you bet on Monday, you are actually using Friday's close price as based value and forecast Tuesday's close price. In one words, whenever weekends or holidays, the server will delays the current until the next available market opening date.

Hope that my explanation can explain what you asked, let me know if it's not clear.

In other words. since server only utilize close price, you can place a bet anytime even weekends and holidays.

Trade bitcoins in NASDAQ binary option, it's simple and it's trusted by thousands of players.

We are proud to say that coinprize.com (http://coinprize.com) is the first and the most popular stock binary option platform using bitcoins, and we are the  most robust and secure binary option platform. Most importantly, coinprize.com (http://coinprize.com) is transparent from start to end, you know how much you gain and where those bitcoins come from (opposite players), and every investment is list on website in the "Recents" section and is public for everyone, and you are anonymous to public as well, simply because we don't offer registration, we don't track players, we use the same concept of satoshidice.com: when you win, we send your bitcoins back to your input address which is the only information we get from bitcoin blockchain.
We are so proud to be the creator of such platform and we are continuously working hard to offer a better platform day by day, step by step.

Thank you for all investors that are already engaged in, thank you very much!
Best,
All members of CoinPrize.com (http://CoinPrize.com)

Invest with as little as 0.1 BTC, 24/7/365, unbounded returns, the more who buy opposite us you the more you earn.

I'm glad to answer any questsion you concern. Just ask.