Topic: [ANN][ICO] Etheraffle - World's First Truly Decentralized Charitable Lottery! (Read 984 times)

Thanks for your explanation.  The fairness of Etheraffle can be "proved" by recordings of all operational aspects through the public ledger.  And also due to "no touch" flow fairness can be maintained.


Good to know that truffle/ganache frameworks come with a large overhead.  I have extensive system design/develop/testing/implement experiences but am new to Solidity.  As I have brought up many developers progressively regardless of their self proclaimed ability/knowledge, I also apply that to myself.  Assign a simple task and progressively assign more demanding tasks with each successful assignment completion.

As I witnessed this project to be well planned and backed by "provably" capable development team, I would be honored to be associated with the project.

Hi Sjyi!

With regards to provability, ours comes from the fact that the entire of the raffle functionality takes place on chain. This, in addition to the transactions also being etched in to the chain where our fairness comes from. Not only can you see how our random numbers are generated (by lightning no less!) but also how they are stored, how a users numbers are compared to the winning numbers, and how in the event of a win the prizes are calculated using the actual odds which are baked into the smart-contract. You can literally read the code that's running on chain and see what it's doing. We are hiding nothing.

Better still, because of the recursion in the smart-contract, you can see that none of the above requires any any human involvement at all. All the other blockchain lotteries out there obfuscate these processes, and or require a person (and so a centralized, single source of failure) to make happen. We do not. It's all laid out there, in the contract, for anyone to go and look at.




Very interesting! How familiar are you with Solidity development?

As it happens, we don't use the Truffle/Ganache frameworks due to the large overhead. The current contract re-write that the update hinted at earlier is now in a far more functional programming style (which strictness lends itself to blockchain security). And so because much of the contract has now been converted to "pure" or "view" functions they are much simpler to unit test directly in Solidity itself (or in Go when automating). Those functions remaining that do have side affects (mainly pertaining to Oraclize) are also simpler to unit test directly in Oraclize's forked Remix compiler.

Dev:

Came across this article regarding Solidity.  https://medium.com/@Hibryda/why-solidity-isnt-solid-3341af77fc1c

This is not about etheraffle, but about Ethereum's Solidity.  Was wondering about this statement from the whitepaper "Provably Fair – Everything occurs in the public domain."  I know this is not my first encounter of "provably."  There are other projects with such a claim.  But with etheraffle having completed so much work, I thought you maybe in a better position to answer this question.  Have you carried out proving the fairness of etheraffle?  Is the "provability" based on analysis of theorem prover or based on the fact that all the transactions are recorded on the blockchain?

I know this question may go beyond the scope of this project, but it may be directly related due to the fact this project is based on Ethereum.

Thanks for your time and info.

I know setting up the development/test environment could take an effort, but if you're willing to take on remote test, I'm willing.  I'm starting to work with truffle.

Hi Sjyi

The update is still in progress - it grew larger than expected and so is taking some more thorough testing before going live...

Noticed this tweet.

 
@etheraffle
 May 16
More
Excellent team meeting this afternoon - update will be coming soon! Meanwhile get playing and winning ETH at http://etheraffle.com . Have a look at http://etheraffle.com/ico  too to see why you should take part of the the only truly decentralized lottery in the world!


When will the "update" be coming?

This certainly was (or is) a difficult one to track down.  Glad you were able to track it down. Glad that you're on etheraffle team.

Hello Sjyi!

That's really strange. Is there still a discrepancy? Because if so, it may be due to where MetaMask is looking for your LOT balance. The LOT smart-contract itself is the sole source of truth re LOT holdings. As such, whatever the balance the smart-contract says you have, is the balance you have.




However, this page still shows your balance being lower by 400 LOT. It's almost certainly due to a discrepancy on etherscan's side, since every token transaction made with a non-ERC20 token show's this warning:


Which occurs because the LOT isn't an ERC20 token at all. The tokens are still transferred correctly, only a different event is fired in the LOT's ERC223's case.



Edit:

Upon visiting etherscan.io/address/0xc8c6618e0fFdb0feDb49385A3dC26845A2179865 - ie, your account's page, looking at the token's tab showed 68050 LOT. Then at the bottom, on clicking "Read Contract", and pasting your address into the "Balances" form, in order to query the actual contract, the contract returned 68450 LOT. And suddenly the value at the top also updated to read 68450 too!

This page is still showing the wrong balance however. So it's definitely something strange going on via etherscan. Metamask clearly looks at this page too if it's displaying the incorrect, lower amount (which makes sense, not having to poll the chain...), and so was displaying the wrong balance in this instance. Not terribly user-friendly!

So, the take home message is that whatever the LOT smart-contract itself says is gospel, so don't worry, you have your tokens. W/r/t Metamask and the token page showing the wrong balance, we'll keep digging and see what we can find out...

I had to retry several times to push the transaction through.
As you can see from my uploaded pictures, https://imgur.com/a/4T1QFFF you can see my metamask wallet indicates 68450 LOTs where as etherscan https://etherscan.io/tokenholdings?a=0xc8c6618e0ffdb0fedb49385a3dc26845a2179865 indicates 68050 LOTs.

Thanks for the freeLOT.

I had to "ADD TOKEN" using the FreeLOT contract address 0xc39f7bb97b31102c923daf02ba3d1bd16424f4bb to receive it.

Then I had 1 FreeLOT showing up on Metamask.

My steps are captured and shown here https://imgur.com/a/4T1QFFF

Until I chose the numbers and clicked "BUY TICKET!" there was no difference from the normal process.

After clicking "BUY TICKET!" a dialog popped up asking if I want to use the FreeLOT coupon. 
NOTE: the dialog box should be slightly bigger to include all of "YES" "NO" selections.

The FreeLOT does not get reduced immediately after the purchase, but it gets reduced after a short while.

Now, let's see if this is my lucky ticket....

Hi egretia

Thank you for your kind words!

Hi Sjyi

That is interesting! The MetaMask token section should be pointing towards the LOT smart-contract to get it's value! I wonder how they have got out of sync? Are they still out of sync? Etherscan can occasionally lag behind a little on token transfers when reading a contract so it could be that?

Also, here's your FreeLOT token! Let us know how it goes!

For my account Number of tokens listed in Metamask (68250) and Etherscan https://etherscan.io/tokenholdings?a=0xc8c6618e0ffdb0fedb49385a3dc26845a2179865 (68050) are not in sync.

The difference seems to be the promotion LOT token (200).

I just noticed that I can redeem promotion LOT token anyday, not just Saturday.

All the best to all the authors of the project and its participants. You created an amazing project.
egretia

Here is my address
0xc8c6618e0fFdb0feDb49385A3dC26845A2179865

Looking forward to trying out the free entry mechanism.

So close! Send us your ethereum address and we'll send you a FreeLOT token so you can test out the free entry mechanism for us...

No... I had several one matches.

Fingers crossed!! Have you had any two-match wins for a free go?

Ah....
Another winner!

Someday, I'll be one