TrueFlip.io
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June 26, 2017, 07:03:36 AM |
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Hi, As a potential investor, I am very concerned by what I have seen looking at your lottery algorithm. There are 2 glaring issues that undermine the legitimacy of your lottery and are astounding given the millions that will soon be raffled on the site. 1) Any customer who has purchased a ticket using number 49 has been cheated. Your algorithm uses modulo 49 which makes it so only numbers 1 through 48 are drawn. 2) Your algorithm discards repeated numbers and moves to the next 4 character section in the hash. This is inherently ok, but there are no safeguards to prevent a bitcoin block hash that generates duplicate powerball numbers exceeding the unique hash length. This may not happen for a long time, if ever, but there are already 18 prefix 0s on the bitcoin block hash, reducing your available seeds for the drawings, and this will only decrease in time. When it does hit, your algo will crash. For a lottery based business understanding the impact of ' small odds', this should go without saying.. https://github.com/TrueFlip/prizecounter/blob/master/algorithm.pyedit: 4 character, not 4 bit edit2: this also applies to the golden ball with modulo 26 Hello bitboi1We appreciate your discovery very much! We will check the algorithm today and give resolution about it in several hours. If this mistake is exist we will fix it. Also we will have to make recompense for players with 49 number at their tickets, if this mistake is confirmed. Best regards, TrueFlip.io
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bitboi1
Newbie
Offline
Activity: 5
Merit: 0
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June 26, 2017, 07:41:16 AM |
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Hello bitboi1
We appreciate your discovery very much!
We will check the algorithm today and give resolution about it in several hours.
If this mistake is exist we will fix it.
Also we will have to make recompense for players with 49 number at their tickets, if this mistake is confirmed.
Best regards, TrueFlip.io
Hi, I see you guys fixed your code on GitHub..well, one of the 2 issues anyhow. Am I eligible to earn bounty for this? Seems more important than any facebook post.
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alinda
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June 26, 2017, 07:58:49 AM |
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Looks like you have similar rules for tweets of SONM but this would create a spam like thread and I would suggest to open another thread for bounty and to keep things posted there
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mela65
Sr. Member
Offline
Activity: 1148
Merit: 282
Best Crypto / Online Casino Writing Services
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June 26, 2017, 08:23:10 AM |
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Odeoke
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June 26, 2017, 09:06:20 AM |
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Just made new account there but not option to make deposit with other altcoins instead of BTC. Maybe my account have some problems to make deposit using LTC.
It seems I couldn't understand you correctly. You can't buy tickets for alcoins now. Such an opportunity will be available only after the ICO starts. But you will be able to buy tokens for altcoins from June 28. Best regards, Trueflip.ioThanks for this reply I was actually asking how to play lottery with altcoins so that I will wait for June 28 when this will be up for place bets there.
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TrueFlip.io
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June 26, 2017, 09:52:01 AM |
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Looks like you have similar rules for tweets of SONM but this would create a spam like thread and I would suggest to open another thread for bounty and to keep things posted there
Hello alindaThank you for your suggest! I've taken it. Best regards, TrueFlip.io
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TrueFlip.io
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June 26, 2017, 09:54:21 AM |
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Dear bounty participants! We have special thread for bounty https://bitcointalk.org/index.php?topic=1980698. There are up-to date information about True Flip bounty. Please, put your comments about tweets, posts and comment there. Best regards, TrueFlip.io
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SolidLiquid
Full Member
Offline
Activity: 378
Merit: 101
Native Korean, Professional Translator
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June 26, 2017, 10:02:34 AM |
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It was pleasure to contribute as Korean translator.
Good luck with your ICO.
Hello SolidLiquidThank you for your work! Korean translation is coming tomorrow. Best regards, Trueflip.io Nice Korean web page. I'll be happy to announce this ICO to Korean Investors.
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daneranon89
Full Member
Offline
Activity: 210
Merit: 100
True Flip ICO: 28 of June 2017
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June 26, 2017, 11:22:33 AM |
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Delighted to see lots of actions taking place in True Flip community. I am sure that the ICO will be very successful. All the best team! Just 2 days left!
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Frank37
Sr. Member
Offline
Activity: 770
Merit: 250
CryptoTalk.Org - Get Paid for every Post!
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June 26, 2017, 12:19:03 PM |
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Hi, As a potential investor, I am very concerned by what I have seen looking at your lottery algorithm. There are 2 glaring issues that undermine the legitimacy of your lottery and are astounding given the millions that will soon be raffled on the site. 1) Any customer who has purchased a ticket using number 49 has been cheated. Your algorithm uses modulo 49 which makes it so only numbers 1 through 48 are drawn. 2) Your algorithm discards repeated numbers and moves to the next 4 character section in the hash. This is inherently ok, but there are no safeguards to prevent a bitcoin block hash that generates duplicate powerball numbers exceeding the unique hash length. This may not happen for a long time, if ever, but there are already 18 prefix 0s on the bitcoin block hash, reducing your available seeds for the drawings, and this will only decrease in time. When it does hit, your algo will crash. For a lottery based business understanding the impact of ' small odds', this should go without saying.. https://github.com/TrueFlip/prizecounter/blob/master/algorithm.pyedit: 4 character, not 4 bit edit2: this also applies to the golden ball with modulo 26 I am a little bit worried about the big error in algorithm, the equal distribution should be one of the most important elements in a lottery. Second thing are the names and pictures on your team description site: https://ico.trueflip.io/newicoSome pictures of the members have different names and are doubled. Can you comment this please.
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vitocorp
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June 26, 2017, 01:04:00 PM |
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Hello! Thank you for your tweets. You have not registered, so I can't put it on your score. Fill the form please https://goo.gl/dqeKGHBest regards, TrueFlip.ioSorry! I've already signed up.
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FandangledGizmo
Legendary
Offline
Activity: 1138
Merit: 1001
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June 26, 2017, 01:27:58 PM |
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Hello bitboi1
We appreciate your discovery very much!
We will check the algorithm today and give resolution about it in several hours.
If this mistake is exist we will fix it.
Also we will have to make recompense for players with 49 number at their tickets, if this mistake is confirmed.
Best regards, TrueFlip.io
Hi, I see you guys fixed your code on GitHub..well, one of the 2 issues anyhow. Am I eligible to earn bounty for this? Seems more important than any facebook post. I hope you get a good bounty. That was a monumental error you discovered. I think there is a market for a blockchain lottery not sure this is the team for it but I will read more.
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TrueFlip.io
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June 26, 2017, 01:45:35 PM |
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Delighted to see lots of actions taking place in True Flip community. I am sure that the ICO will be very successful. All the best team! Just 2 days left!
Hello daneranon89Thank you for your words! Just 2 days left! We are excited too:) Best regards, Trueflip.io
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TrueFlip.io
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June 26, 2017, 02:13:53 PM |
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I am a little bit worried about the big error in algorithm, the equal distribution should be one of the most important elements in a lottery. Second thing are the names and pictures on your team description site: https://ico.trueflip.io/newicoSome pictures of the members have different names and are doubled. Can you comment this please. Hello Frank37Thank you for your concern about it. It is great luck that bitboi1 discovered bug like this! This page https://ico.trueflip.io/newico was from test period of developing site. That period delelopers didn't have the pictures from all the team and marked with doubles places for them. Thank you for find it, now it is blocked. Best regards, Trueflip.io
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LEEMEEGO
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June 26, 2017, 02:22:34 PM |
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Good News We are very pleased to inform you that the well-known rating agency icorating.com has prepared a report on our ICO and identified its excellent prospects by awarding an estimate of STABLE+. BTW ICO is comming 28 june. http://icorating.com/project/103/True-Flip Best regards, Trueflip.io
this is a great news man, thanks for updating us. i got few more questions though, about the twitter, i posted one already about my tweets and retweets, now i wanted to ask if do i need to post again for another batch or might as well edit my previous post so all of my tweets and retweets will only be in one post? thanks, ps: just checked the spreadsheet, why i dont have retweets and reposts indicated in the spreadsheet on both campaigns? only tweet and posts appear. no reposts and retweets..
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