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Author Topic: MyriadCoins.com - Make the bet you want  (Read 7066 times)
FreeMoney
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June 10, 2012, 02:58:10 AM
 #1

Myriad offers flexible bets. You enter the amount you want to bet and the amount you want sent if you win and it offers you odds. You can accept the wager by sending payment.

The max bet, win amount and effective fee (lower odds than 'fair') depend on how much is in the wallet.

We're testing with real money, but a smaller wallet for now. Because the effective fee is determined by the percent of the wallet you are trying to win the fee will be higher now for the same wager compared to after the wallet is fully loaded up.

The games are cryptographically provably fair. We use sha256 to hash [junk, timestamp, our guess] when you first hit the site. After the wager is completed we reveal [junk, timestamp, our guess] and you can check that the guess is the one we committed to at the time you came to the site.

Since wins are determined by how close your guess is to ours you don't need to worry about how we select our guess.

Please give feedback! And ask questions if anything is unclear.

MyriadCoins.com

Max bet has been raised! Right now you can bet .01 to win 19.70!

Play Bitcoin Poker at sealswithclubs.eu. We're active and open to everyone.
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FreeMoney
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June 11, 2012, 09:23:26 PM
 #2

Bump for the free dimes offer.

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nimda
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June 11, 2012, 09:36:33 PM
 #3

Uh-oh. I'm pretty sure I bet on the number being 6000, but I'm not positive. Me and my memory, I tell ya Undecided
Sent coins to 13e8q1PtDNAXPGci7v5Jpz53FXLEwY5RTV and the hash of the bet was d8212b6ef695128b4014910df1e632706279bb22ac5b769f0876a0343f5e8346

I recommend asking me for a signature from my GPG key before doing a trade. I will NEVER deny such a request.
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June 11, 2012, 09:51:33 PM
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Uh-oh. I'm pretty sure I bet on the number being 6000, but I'm not positive. Me and my memory, I tell ya Undecided
Sent coins to 13e8q1PtDNAXPGci7v5Jpz53FXLEwY5RTV and the hash of the bet was d8212b6ef695128b4014910df1e632706279bb22ac5b769f0876a0343f5e8346


Cool, sent a dime.

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June 11, 2012, 09:52:39 PM
 #5

I'm assuming I didn't win? How do I get notified of a win/loss?

I recommend asking me for a signature from my GPG key before doing a trade. I will NEVER deny such a request.
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June 11, 2012, 10:01:28 PM
 #6

I'm assuming I didn't win? How do I get notified of a win/loss?

A few seconds after you pay, click the refresh link.

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June 11, 2012, 10:04:28 PM
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I just changed it to say, "After you pay, click here to see if you won!"

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June 12, 2012, 04:03:33 AM
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I sent 0.05 BTC, and guessed 3536.

I'm clicking "After you pay, click here to see if you won!" but the same page keeps coming up over and over.  Is it waiting for confirmations, or did something go wrong?

Edit: it took over 5 minutes to let me know if I won, but did eventually tell me.  "Guess: 3536, Number: 8930, Distance: 4606, Max Distance: 3536".  I lost my 70.71 shot...

It says the game will be valid until Mon Jun 11 2012 22:56:54 GMT-0700 (PDT) and it's currently only Mon Jun 11 21:03:06 PDT 2012, so it's valid for almost 2 more hours.

Quote
Set your wager amount and choose your win rate. Guess close enough to the predetermined number to win!
Send 0.05BTC to 18gEEmSuQse6oaK8EnfBo3umZgCwRb1TAK for a 70.71% chance to win 0.07BTC.
This game will be valid until: Mon Jun 11 2012 22:56:54 GMT-0700 (PDT).
Refresh Game
Start new game!
 
BET AMOUNT
 0.05 BTC
WIN AMOUNT
 0.07 BTC

You have a 70.71% chance of winning. In order to win, your guess must be within 3536 of our chosen number.

dooglus
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June 12, 2012, 04:06:08 AM
 #9

Please give feedback! And ask questions if anything is unclear.

Is 9999 'within 10 of' 0001?

ie. do the numbers wrap around?

Edit: I can answer that now.  I lost my bet, with "Guess: 3536, Number: 8930, Distance: 4606, Max Distance: 3536".

8930 - 3536 = 5394
13536 - 8930 = 4606

So they do wrap around - the reported distance is the shorter of the two.  It would be worth mentioning that (more prominently, if I missed it).

notme
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June 12, 2012, 04:11:02 AM
 #10

Please give feedback! And ask questions if anything is unclear.

Is 9999 'within 10 of' 0001?

ie. do the numbers wrap around?

Numbers do wrap around.  Bitcoin transactions are checked once per minute, so it may take a minute to recognize your payment.

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
12jh3odyAAaR2XedPKZNCR4X4sebuotQzN
dooglus
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June 12, 2012, 04:13:36 AM
 #11

The string that was hashed for me was:

Code:
bw4lv6Q8B52012-06-11 23:56:548930

I would suggest putting spaces in there between the junk, the date, and the guess, just to make it more legible.

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June 12, 2012, 04:19:40 AM
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The (?) after the hash at the bottom of the page is underlined, making it look like it is a hyperlink.  That caused me to click on it, which in turn prevented the tooltip from popping up.

It appears that I'm meant to just hover over it, not click it.  Removing the underline would help prevent people clicking on it I think.

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June 12, 2012, 04:21:28 AM
 #13

The (?) after the hash at the bottom of the page is underlined, making it look like it is a hyperlink.  That caused me to click on it, which in turn prevented the tooltip from popping up.

It appears that I'm meant to just hover over it, not click it.  Removing the underline would help prevent people clicking on it I think.
The string that was hashed for me was:

Code:
bw4lv6Q8B52012-06-11 23:56:548930

I would suggest putting spaces in there between the junk, the date, and the guess, just to make it more legible.

Thanks dooglus. Keep it coming.

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June 12, 2012, 04:24:46 AM
 #14

I guessed 9001 lol

dooglus
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June 12, 2012, 04:40:36 AM
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I'm not sure about having the odds get worse the more I bet.

That encourages me to split my bet into 10 smaller bets to get better odds.

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June 12, 2012, 04:45:11 AM
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Guessed 3400 and won!
dooglus
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June 12, 2012, 04:46:05 AM
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It just told me: "Hash or timestamp has been tampered with.
To keep things fair, games are only valid for 2 minutes, please generate a new hash."

I didn't tamper with anything.

I did hang around longer than 10 minutes though, looking at the odds it offered me.

I'm guessing the 2 minute limit is to prevent me brute-forcing the hash to find out what the number is.  How about making the 'junk' an extra character or two longer, and having the games valid for an hour instead.  2 minutes arguably isn't long enough for a new user to find their wallet address, copy it into the form, get familiar with how the site works, decide what numbers to type into the boxes, etc.

And instead of making me click a link to "generate a new hash", how about just generating a new one right there and then.

Also, I keep having to re-type my wallet address.  The input field isn't remembering the one I used last time, like input fields usually remember things.  I keep having to go back to my wallet and copy/paste it each time.

Oh, and where's that dime you promised me?  Wink

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June 12, 2012, 04:50:20 AM
 #18

I'm not sure about having the odds get worse the more I bet.

That encourages me to split my bet into 10 smaller bets to get better odds.

I slide the fee like that so I can offer larger wagers than I'd want to take if the fee was flat.

Splitting your bet up does help me since you are not likely to win (or lose) them all and so my variance is less and I can invest less capital.

When I load up the wallet everything should be about 10x bigger (and maybe more later on). Meaning 10x higher caps and the same odds for 10x higher wagers than currently. Hopefully in less than a day.

Play Bitcoin Poker at sealswithclubs.eu. We're active and open to everyone.
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June 12, 2012, 04:54:09 AM
 #19

It just told me: "Hash or timestamp has been tampered with.
To keep things fair, games are only valid for 2 minutes, please generate a new hash."

I didn't tamper with anything.

I did hang around longer than 10 minutes though, looking at the odds it offered me.

I'm guessing the 2 minute limit is to prevent me brute-forcing the hash to find out what the number is.  How about making the 'junk' an extra character or two longer, and having the games valid for an hour instead.  2 minutes arguably isn't long enough for a new user to find their wallet address, copy it into the form, get familiar with how the site works, decide what numbers to type into the boxes, etc.

And instead of making me click a link to "generate a new hash", how about just generating a new one right there and then.

Also, I keep having to re-type my wallet address.  The input field isn't remembering the one I used last time, like input fields usually remember things.  I keep having to go back to my wallet and copy/paste it each time.

Oh, and where's that dime you promised me?  Wink

Dimes coming to you and the 3400 guesser!

Yeah, I will increase it, I think 15 min for now. I can't just make a new hash silently since that would defeat the promise, I think there has to be notification/action.

Let me see about the remembering.



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dooglus
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June 12, 2012, 05:04:38 AM
 #20

I went to bet 40 BTC to win 42 BTC (then changed my mind before submitting).

"You have a 85.87% chance of winning. In order to win, your guess must be within 4294 of our chosen number."

If I guess 4294, then everything from 0000 to 8588 is within 4294 of my guess.  That's 8589 winning guesses out of 10k, or 85.89%.

You report 85.87%, which makes me think that you're not counting 0 and 8588 as being winning numbers.  That's going to piss somebody off one day...

Either that or the displayed percentage is just a little out.

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