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Topic: [ANN][CHA] Chancecoin, SuperNET core coin for betting in a decentralized casino - page 77. (Read 146151 times)

member
Activity: 113
Merit: 10
Chancecoin developer
1. The numbers are taken from the first NY lottery immediately after the block that contains the transaction. Does this rely on perfect time synchronisation, with the timestamp put into the block being the correct time? What happens if a block is orphaned and the transaction moves into another block that is subject to a different set of NY lottery results?

2. The technical specifications and the code appear to differ:
     - Spec says final variable is “(rA + rB) %1", but the code says %2
     - Spec says Ra is the sum of (number i) over each i in 1..20, but the code says (number-1 i)
     - The code has a factor of 100; is this represented in the specifications? Code is: roll1 = n/(N-1)*100
    Am I reading this wrong (quite likely, actually...); or which one is correct?

3. Do you have formal proof that rA is a standard uniform random variable (assuming the numbers from the NY lottery itself are random)?

Shameless bump! Did the dev (or anyone) get a chance to take a look at these questions yet?

we need the dev team show up to solve the problem and tell us the process of this project.

1. This does rely on reasonable time synchronization. If people are worried about timestamp cheating, we can always increase the verification time, but there's a tradeoff there. If a block is orphaned and a transaction moves into another block, the bet will be resolved based on the new block.

2. The %2 was a bug. I just released version 1.3 to fix that, and the Windows client will be updated shortly. I also updated the technical specification to reflect what actually happens in the code. (number i) was a typo, and I had forgotten to mention the factor of 100 is simply to put the standard random uniform variable into percentage terms (since Chancecoin saves the chance of winning as a percentage as well).

3. I can write up the formal proof once the bitcoinj wallet gets off the ground. I apologize for taking a while to answer questions recently. Venetian and I have been pounding the code treadmill pretty hard with this new wallet software.

Magician
hero member
Activity: 742
Merit: 500
1. The numbers are taken from the first NY lottery immediately after the block that contains the transaction. Does this rely on perfect time synchronisation, with the timestamp put into the block being the correct time? What happens if a block is orphaned and the transaction moves into another block that is subject to a different set of NY lottery results?

2. The technical specifications and the code appear to differ:
     - Spec says final variable is “(rA + rB) %1", but the code says %2
     - Spec says Ra is the sum of (number i) over each i in 1..20, but the code says (number-1 i)
     - The code has a factor of 100; is this represented in the specifications? Code is: roll1 = n/(N-1)*100
    Am I reading this wrong (quite likely, actually...); or which one is correct?

3. Do you have formal proof that rA is a standard uniform random variable (assuming the numbers from the NY lottery itself are random)?

Shameless bump! Did the dev (or anyone) get a chance to take a look at these questions yet?

we need the dev team show up to solve the problem and tell us the process of this project.
sr. member
Activity: 378
Merit: 250
1. The numbers are taken from the first NY lottery immediately after the block that contains the transaction. Does this rely on perfect time synchronisation, with the timestamp put into the block being the correct time? What happens if a block is orphaned and the transaction moves into another block that is subject to a different set of NY lottery results?

2. The technical specifications and the code appear to differ:
     - Spec says final variable is “(rA + rB) %1", but the code says %2
     - Spec says Ra is the sum of (number i) over each i in 1..20, but the code says (number-1 i)
     - The code has a factor of 100; is this represented in the specifications? Code is: roll1 = n/(N-1)*100
    Am I reading this wrong (quite likely, actually...); or which one is correct?

3. Do you have formal proof that rA is a standard uniform random variable (assuming the numbers from the NY lottery itself are random)?

Shameless bump! Did the dev (or anyone) get a chance to take a look at these questions yet?
sr. member
Activity: 602
Merit: 252
Yes it is already working, but the client atm has a display bug and doesn't show the right amounts. I hope there is a fix employd soon Smiley
thanks, I have seen you be very active about this project ,what's  the relationship between you and the author?
I just wonder . Grin

I burned some BTC and want this project to succeed.

I don't know the creator, but I think he is doing good work!
I burned some ,too ,let's see the results.
me too
where is the dev team?

The dev team are busy in earning money Grin
hero member
Activity: 742
Merit: 500
Yes it is already working, but the client atm has a display bug and doesn't show the right amounts. I hope there is a fix employd soon Smiley
thanks, I have seen you be very active about this project ,what's  the relationship between you and the author?
I just wonder . Grin

I burned some BTC and want this project to succeed.

I don't know the creator, but I think he is doing good work!
I burned some ,too ,let's see the results.
me too
where is the dev team?
sr. member
Activity: 602
Merit: 295
Hail Eris!
Allright, there is no warning now. But, still nothing happen when click the wallet.
The exact same behaviour here.

go to bitcoin.config and set txindex=1
then start the deamon with this phrase -reindex

(you only need to reindex it once!)

Do you mean chancecoin.config?  That is what the instructions say to modify.

I cannot get it working either.

How do you 'start the deamon with the phrase -reindex'?  (for the computer illiterate)
full member
Activity: 122
Merit: 100
Yes it is already working, but the client atm has a display bug and doesn't show the right amounts. I hope there is a fix employd soon Smiley
thanks, I have seen you be very active about this project ,what's  the relationship between you and the author?
I just wonder . Grin

I burned some BTC and want this project to succeed.

I don't know the creator, but I think he is doing good work!
I burned some ,too ,let's see the results.
me too
hero member
Activity: 742
Merit: 500
Yes it is already working, but the client atm has a display bug and doesn't show the right amounts. I hope there is a fix employd soon Smiley
thanks, I have seen you be very active about this project ,what's  the relationship between you and the author?
I just wonder . Grin

I burned some BTC and want this project to succeed.

I don't know the creator, but I think he is doing good work!
I burned some ,too ,let's see the results.
legendary
Activity: 1680
Merit: 1001
CEO Bitpanda.com
Yes it is already working, but the client atm has a display bug and doesn't show the right amounts. I hope there is a fix employd soon Smiley
thanks, I have seen you be very active about this project ,what's  the relationship between you and the author?
I just wonder . Grin

I burned some BTC and want this project to succeed.

I don't know the creator, but I think he is doing good work!
hero member
Activity: 742
Merit: 500
Yes it is already working, but the client atm has a display bug and doesn't show the right amounts. I hope there is a fix employd soon Smiley
thanks, I have seen you be very active about this project ,what's  the relationship between you and the author?
I just wonder . Grin
legendary
Activity: 1680
Merit: 1001
CEO Bitpanda.com
Yes it is already working, but the client atm has a display bug and doesn't show the right amounts. I hope there is a fix employd soon Smiley
hero member
Activity: 742
Merit: 500
do anyone already use the dice function ?
is that normal to use?
legendary
Activity: 1680
Merit: 1001
CEO Bitpanda.com
just send it to the burn address. very simple. use 0.0001 fee
newbie
Activity: 6
Merit: 0
how to use blockchain to burn it?
legendary
Activity: 1680
Merit: 1001
CEO Bitpanda.com
I will throw some hash on this coin.

I hope you mean bitcoin Wink
hero member
Activity: 770
Merit: 500
I will throw some hash on this coin.
legendary
Activity: 1680
Merit: 1001
CEO Bitpanda.com
Allright, there is no warning now. But, still nothing happen when click the wallet.
The exact same behaviour here.

go to bitcoin.config and set txindex=1
then start the deamon with this phrase -reindex

(you only need to reindex it once!)
hero member
Activity: 742
Merit: 500
is this another xcp?
or just one function of POB?

It is just based on counterparty. The only features for now are: decentralised dice gambling and a decentralised CHA<>BTC exchange.

Pretty sweet!
thanks for that.
people are talking about chancecoin aruond the forum.
It's amazing project.
let's burning! Grin
full member
Activity: 155
Merit: 100
Allright, there is no warning now. But, still nothing happen when click the wallet.
The exact same behaviour here.

have u gotten your bitcoin qt reindexed?
hero member
Activity: 784
Merit: 500
Allright, there is no warning now. But, still nothing happen when click the wallet.
The exact same behaviour here.
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