We have a ticket open with Coinbase, there are multiple transactions held up with them right now.  We cannot cancel the transaction at this point because it's already been accepted, We can process any future cashouts manually until Coinbase gets back in sync with the rest of the blockchain.

It looks like your transaction is still queued with Coinbase:

https://coinbase.com/network/transactions/d86482b91c946ddcfcc9e1be26761da09788f088a6bd817098ef1b5de37ca9a5

They seem to be taking awhile this morning.  We're thinking of putting a transaction history page on the site so you can track the txn's in and out.  I agree, it's never fun to wonder if your transaction disappeared.

Credit was sent back in txn Hash   fe751d7a34bd0479078e4f043c57a6f17d82ad92393f2c4d6a22dc847d334165

I'm really concerned that you keep having these issues.  I've investigated the transaction and it doesn't look like it's been picked up by Coinbase yet.  The transaction you referenced is in block 260089, but coinbase, who we have been using as a temporary deposit processor since last weekend, is only reporting up to block 260029.  There seems to be a serious lag right now.

We moved to coinbase temporarily as a way to expedite deposits and confirmation verifications, this seems to be causing different issues.

Our developer is investigating an option to use our previous bitcoind solution. It doesn't look like there is a reliable thirdparty processor yet unfortunately.

Excellent catch.  Thanks for reporting that.  You are correct, the check logic in the JS is disabled, this seems to be a missed relic from testing.  The code is being corrected today. 

As for how we calculate the deck from the game seed:
It's pretty straight forward
We take the final game seed + the game seed hash, convert this to a string (which is a byte stream in PHP) and use it as the seed for the mt_srand function in PHP. This will seed the Mersenne Twister algorithm. We then perform a Fisher Yates shuffle on the shuffled deck, using the mt_rand function as the RNG. This adds two levels of randomness to the shuffle and provides a reproducible result after the fact.

In the essence of transparency we've decided to add a feature to the site which will allow anyone to download a public game history file each day which will show all games played, the server, client and game seed as well as the complete shuffled deck. This can be used to perform analysis on the dataset, or simply to verify a particular game again after the fact.

We are also in the processes of having our game engine externally audited which will add a further level of trust to our engine.

While I am happy that a developer let this test get into production, I can assure you that the games are random. Anyone that has a particular concern about the outcome of a game or the randomness of a shuffle, please contact any of us directly and we will provide the complete audit history of any game.

Thanks again for the great bug catch.

Refunded. 

We just stopped using the blockchain.info API to confirm transactions until whatever is wrong with their system is fixed.  If anyone else feels that a deposit hasn't credited, please drop me a note and I'll get it resolved.

Thanks!

Thanks, our payout percentage was calculated using the wizard of odds calculator which gives us a house edge of 0.42945% which is technically 99.57055%  We rounded to 99.6, but it's a good point. The site has already been updated to be more accurate.

As for the deposit, let me know the BTC address and I'll investigate.  We use the blockchain.info API to verify confirmations.  There's been some weird problems with their service over the last 24 hours and we've seen a few transactions that aren't showing as confirmed even though they are.  We're going to be manually watching the queue until blockchain.info gets sorted out.

It looks like our deposit queue got a little backed up (a good problem to have I guess), the transaction finally processed and there was nothing wrong with your account so you can keep using the same one. We've added another worker to our deposit process and the queue is back down to zero. Transactions should be posting instantly again. Sorry for the hassle with the long deposit delays!

I'm sorry about that, I'm looking into why that transaction didn't post.  I see the transaction though.  I've refunded the deposit to your address above, I would recommend trying a new account just to be safe.

That's really strange. If you look at the JavaScript you'll see that your browser hashes the raw server seed we send at the end of the game and compares it to the hash of the server seed we sent before the game. If the two don't match an error is thrown.

Can you send me the gameid of a game where you don't think the hash matches? I'd like to investigate.

DoubleDownBTC would love to be listed. Provably fair Blackjack and adding 3 new games (Let It Ride, Jacks Or Better video poker, and 3 card poker) on the way soon!

Great catch. Appreciate that you reported this ethically. We confirmed that there was a bug that could in some cases cause a deposit to be credited more than once to an account. We have patched it and can verify that player funds were at no time at risk.

Your bounty will be on its way!

Good question:
The promotion is currently listed as 20% on initial deposits. Initial deposit can be withdrawn instantly, the bonus 20% can be withdrawn after 20x play. Thanks for asking, I realized that wasn't listed on the original post.

Thanks for everyone that helped with the bug catching.  We've published the updated version of our backend and are nearing the volume of play required to have our gaming engine externally certified.

As a thank you to the bitcointalk community, we're offering a 20% deposit bonus on all first time deposits.  Just PM me your account once you make your first deposit and I'll apply the bonus!

Thanks again for playing, and "good luck with that ace!"

Thanks for reporting this. Looks like the ace-10 got scored as a blackjack. We'll clear they issue ASAP.

Great run!  Glad to hear!!

Sorry about that.  The bonus credits had expired because they weren't played.  I reset your account.

Thanks!

Not trying to rip anyone off.  We coded this site up while BVC was down hard last week.  We honestly weren't sure if they were coming back and aimed to fill the void.  I think there's a shortage of good low house edge BTC games out there and I think that's a shame.

This is the version 0.1 interface and the frontend was arguably slapped together.  We're validating our backend infrastructure right now and trying to push as many games through the system as possible. Our auditor requires 100k unique game histories to certify our system. 

Don't worry, we're working on quite a few graphical improvements as we speak. But thanks for the good feedback.

Great idea on the keyboard shortcuts!

Sent!  Thanks for playing.