Here is an interesting cake: http://www.btccake.com/cake/52ce07f4d18b0e5a71a02e80af8c2a9fc5e3fd3732551431d7976825cd5263fc

If you calculate and ignore the last bet, wedge 2 (gordoh) would have won. But, because there was a new user betting at the end, wedge 1 won... Sorry gordoh. Bad luck. I wish everybody could win.

But it shows how things can change. And more importantly, that so far everything works very well. I double checked and payments and all is fine.

Does anyone here know how much time and effort it takes for creating such site? I mean, if they did it all from scratch it does take a while to create a site like that. I'm guessing that if you do plan to scam people you copy and steal as much as possible because I can't imagine someone actually coding this game from scratch, just to run for a short period of time. Would have been more beneficial to actually run forever.

Well, you got a big cake before that though, so you must be quite full already. Too much cake ain’t healthy.

Anyway, I really like you playing along, testing the system. I hope you like it. Anything particular you would like to see? Something that really is missing? I believe you got back and withdrew what you initially send, so that is all good huh?

I'm quite busy working on password for the whole account right now (locking the withdraw address is in place already). You can set and update the password, but I need to add so you have to type it to actually access your profile. And next I will post a promo, inviting a few people so we can really test with a lot more of people. Which also means bigger "cakes" (wins).

Yea! And, I checked how it went, and everything went fine! I'm quite sure that if the cake has this "All OK. Cake Done" stamp on it, everything really is OK with the cake. That is, ALL payments went as they should. Thing is, I got error checks all the way, and I set this boolean to true absolutely last if nothing bad happened. If something did go wrong, it wouldn't have reached the line to set this boolean in the database to true, so, it it is set to true (and you can see that by that "All OK" box), all did go well!

So, would you like to update it?

I'm glad you like it. Have you looked at the "Getting Started" page? Although, sure, that page needs more pictures.

Alright! Did a few UI updates. Hope you guys like it:



I replaced the boring text with a nice animated one. I also clarified the settings. "Per User" and "Per Wedge", and that means that "Maximum BTC To Bet" means that you can only bet that amount max totally! Now, if you can only bet one time, it's a no brainier. This is max you can bet. But if "Multiple Bets Allowed" is turned on, the total sum of bets is what is used for this limit, spread over any wedge.

It is now also possible to LOCK you withdraw address!

Ha! Instead of being on my own, I now joined forced with gordoh because we lost before. Besides, we need to test that too, where we share the winnings.

Edit: And the tables in the Wedges and "All Bets" tabs show correct information, including fee withdraw. So, it's really easy to see how everything will be shared fairly.

Yea, I guess I could actually label the cake wedges. (If you click on a wedges on the cake, corresponding tab will be opened.)

You can see what wedge won in the result tab by the very green background over the wedge there. But yea, I agree, it needs to be shown better. It should be easy to see when just coming there. Ideas welcome.

Yea, chart tab isn't completed yet. It's really just thrown together just to remind me to have a nice chart there. But yea, it's not very useful yet. It also has a annoying bug to not render properly when hidden. x is time, circle size is size of bet. Color matches wedge number. y is currently also size so, which is redundant I know. I was thinking changing that to wedge number, but I'm not sure. Actually, if you have ideas how a chart would be useful, please tell me.

As for the salted hash to be unique key.. that is an interesting idea! I need to think about that, but that can actually work.

Yea, thanks @worldcup, and you are absolutely right. It might look simple, but it's actually more complex to do. It's funny, because when I initially though of this idea, I though I do it in a month... but it has taken much longer than that. I guess that is what happens when you get creative ideas all the time, and fiddle around with details in the design... I have put a few sanity checks, so if such issue as mentioned above (payment doesn't end up equal/rounding error), the payment for that cake will be marked and paused. This way, I can take a look at it and deal with it more safely. Payments will be somewhat delayed in such case, but that is better than something gets messed up.

I basically update the site daily. Sometimes in the backend, sometimes in the frontend. So, updates might not always be visible. But I love working on this. I just love the idea that people can get more bitcoins fairly. It's kinda like an exchange site, but more driven by luck. Anyway, I really love the idea that most of the bitcoins here goes to users, not me.

Btw, the screenshots are kinda dated already, as you can see if you go to the site.

Man, this is really looking great. http://www.btccake.com/cake/e18fa58f093b6e6bd9f39ee73e7d258bc9671b89f4ad139792e7e9047385f155 just finished, and everything seems to have worked out perfectly! That is, payment went as it should, including fee taken. So, even though I lost my betted bitcoins, I love this, as it seems to do as it should!

I won't say this is totally ready for the mass public just yet, but it sure is getting there.

Btw, whoever won is free to withdraw. Actually, might be a good idea just to test so it works.

gordoh, you want your lost 0.01 back? I will send it to your deposit address (or your withdraw address) if so, instead of messing on server side, which would just confuse your history.

Ok, so right now the site isn't rendering the cake properly, but that is because cloudflare has cached old files. Give it like max an hour, and it should work. I did some minor tweaks and updates, making the site better and better by the minute...

Edit: Actually, I think it might has to do with Firefox and TTL... Firefox caching waaay too long... If I just restart Firefox, the site worked for me again... Updated TTL in cloudflare too, set to 1 hour currently...

The ".005" problem is fixed. Or well, the javascript now changes ".xxx" to "x.xxx" because it's seems like it's a JSON requirement of some kind. But anway, this shouldn't be a problem anymore.

First, thank you for the feedback! Apparently it can't handle ".005". Kinda odd, it must be "0.005", but no worries. I will fix this right now.

I can also inform you that I do have control on client side, and would show info there when placing a bet if something was wrong. As this error is more of a internal error that "shouldn't happen", it is not shown to the user. Besides, it wouldn't make sense to a user really. A user would wonder "What JSON bet input"?

Also, I do mention my email in a bunch of places though. btccake@gmail.com currently. Might be something like support@btccake.com later, but hey, I'm one guy working on this. Besides, I focus on important things first such as getting security in place and make it work properly. Anyway, you can use btccake@gmail.com to get hold of me.

Thanks for that information though. I will get on fixing this rather annoying bug.

I also want to thank people that create cakes and test this out. It's fantastic feedback, and I put counter bets just to keep it interesting and test so it works. If anyone looses to me, I don't mind giving it back to you if you want, as this is just testing this out.

Wow, that is really odd. Never even seen that issue before so I'm not sure what it's about... I need to investigate. I found this though: https://support.cloudflare.com/hc/en-us/articles/200171936-Error-520
And, it has worked for me and gordoh... I'm not sure how I can reproduce this properly so I can fix whatever the issue is. Are you getting this every time you try to bet?

Edit: I noticed the Ray ID, and I can apparently use that to contact cloudflare about it, so that is what I will do.

Oh, and also, I just saw someone sending 0.01 BTC, makes me really happy and wanting to secure this down even more as much as possible so you guys can feel safe about it. It's good that you guys keep it low for now.

Alright, so as you guys now can see, me and my new friend gordoh have been testing using real bitcoins, and after a small hickup that is now fixed, it all seems pretty stable. Now, what I would like to do is to get a few people in just so I can test a bit more with more users.

Here are 2 cakes we tested with:
http://www.btccake.com/cake/2f4a81712ad293dd037c3a0d2adc20d17b2311d4f3ab3e64929322402d17b6a4
http://www.btccake.com/cake/b89b0931e06c623e383b2d8686b472492a98ff297acb79679a1506c075dc5732


So, is anyone here serious about helping me testing if I say gave you 0.01 BTC to play with? I was first thinking that everybody can get 0.01 no matter what, but to keep it more clean, I was thinking I give a few people 0.01 BTC (basically send it to your deposit address at btccake.com), and, you use that to play with. Then you are totally free to withdraw however you like.

This means that you play for free, and, you have a chance of winning more than 0.01 at no loss to you. Basically, you play using my money and then you can withdraw whatever you want. To keep it more interesting, you don't have to bet everything.

Edit: I can also update by saying I've been working on getting email in place. The testings I've been doing are working great. Will come live any day now too. Email will be used for password reset (reset, not recovery, as I don't save the password. Its hashed with a salt.). And email will be used for notifications and confirmations of withdrawing bitcoins too. Everything to make it even more secure.

I think I might try them later on actually. It's not particularly cheap using them so...

Man, I'm really getting fed up with external issues I have with blockchain.info. How do you guys use that service with different accounts?

Apparently, I have to pay a fee using the "move" command! That is just stupid. I will not pay for transferring between different accounts in my own wallet. Especially since that means you guys lose more than necessary. Using a local bitcoind it works more as expected, as moving between accounts, really is just an internal thing, and not broadcast over the network. Which is why it doesn't require a transfer fee.

Basically I have this:

account1 -> address1
account1 -> address2

account2 -> address3

account3 -> address4
account3 -> address5

Same account is just the same label. Now I can just use the move command, to move between different accounts at no cost. This is super handy and a much more robust way of keeping track of everybody’s money! And, extra security as if a user has money in their own account, they can't withdraw more than they have... if I had a shared account for everybody it could be messy. But, since I have different accounts for every user, I also have build-in protection with bitcoind when it comes to withdrawing money. Basically this separates users in a more robust way. And it's hell of a lot easier to work with.

Actually, check this: http://bitcoin.stackexchange.com/questions/5631/how-does-the-move-command-work

That is NOT how blockchain.info does it, which is a BIG issue for me.

Why do I need the move command? Well, that is how I transfer between you guys. Quick and easy. You basically have your winnings straight away!

I had the same issue, but now it seems to work.

I always try to give credit where credit is due.

I think I will announce here when I will test a promotion... I'm thinking to give away BTC so people can play and test with. And withdraw to your hearts content.