Bitcoin Forum
July 17, 2019, 05:26:51 PM *
News: Latest Bitcoin Core release: 0.18.0 [Torrent] (New!)
 
   Home   Help Search Login Register More  
Pages: [1]
  Print  
Author Topic: Brain Wallet Challenges - Guessable Passphrase Bitcoin Bounty  (Read 470 times)
wrayjustin
Newbie
*
Offline Offline

Activity: 35
Merit: 0


View Profile WWW
June 19, 2014, 06:48:05 PM
 #1

Brain Wallet Challenges - Challenges provide a Bitcoin Bounty held in a Wallet secured by a Guessable Passphrase.

Description:

Challenges provide a Bitcoin Bounty held in a Wallet secured by a Guessable Passphrase. Each challenge has a set category and a set number of hints. Hints must be purchased, but a portion of all hint fees are added to the Bounty!

Links:

Brain Wallet Challenge (www.reddit.com/r/brainwalletchallenge)
Welcome Post
Challenge #1:  Movie Quote

Frequently Asked Questions:

  • What's a Brain Wallet? - A brainwallet refers to the concept of storing Bitcoins in one's own mind by memorization of a passphrase.
  • Is there a site I can use to generate the Brain Wallets? - Absolutely, check out brainwallet.org
  • When are new challenges posted? - After the current challenge is beaten. All new challenges will be flared as such.
  • How much does a Hint cost? - The formula is (Total Bounty / Total Hints) * 1.5
  • How much of the hint price is added to the Bounty? - 15% goes into the bounty of the current challenge.
  • What happens to the rest? - 85% goes towards recouping funds for the next challenge, as well as operational costs.
  • How do the hints work? - Each challenge has a set number of hints. The hints get much more specific as you purchase more. Buying all the hints or even most of them essentially gives you the answer. However, be resourceful and you will solve the challenge far before then. Remember that a portion of every hint payment goes towards the bounty. More players equals a higher bounty!
  • What is a Salt and how do I use it? - The salt is a random, 10-character string added to the beginning of the challenge passphrase. This will be given to you in the initial post.

Getting Started:

You'll need a Reddit account (as the games are hosted on Reddit) and a ChangeTip account (more information on changetip can be found on their subreddit /r/changetip or their website www.changetip.com).  Subscribe to the /r/brainwalletchallenge subreddit to stay informed of new challenges.  Purchased hints will be sent to you via a private message on Reddit.

Example Profit Chart (Challenge #1):

The following is the profit table, the column title indicates the number of assumed players; as more contestants buy hints, the profits will increase.  Remember 0.001125 BTC is being added to the bounty for each hint purchased.

Hint1 Player2 Players3 Players4 Players5 Players
10.0936250.094750.0958750.0970.098125
20.087250.08950.091750.0940.09625
30.0808750.084250.0876250.0910.094375
40.07450.0790.08350.0880.0925
50.0681250.073750.0793750.0850.090625
60.061750.06850.075250.0820.08875
70.0553750.063250.0711250.0790.086875
80.0490.0580.0670.0760.085
90.0426250.052750.0628750.0730.083125
100.036250.04750.058750.070.08125
110.0298750.042250.0546250.0670.079375
120.02350.0370.05050.0640.0775
130.0171250.031750.0463750.0610.075625
140.010750.02650.042250.0580.07375
150.0043750.021250.0381250.0550.071875
16-0.0020.0160.0340.0520.07
17-0.0083750.010750.0298750.0490.068125
18-0.014750.00550.025750.0460.06625
19-0.0211250.000250.0216250.0430.064375
20-0.0275-0.0050.01750.040.0625
1563384411
Hero Member
*
Offline Offline

Posts: 1563384411

View Profile Personal Message (Offline)

Ignore
1563384411
Reply with quote  #2

1563384411
Report to moderator
PLAY NOW
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1563384411
Hero Member
*
Offline Offline

Posts: 1563384411

View Profile Personal Message (Offline)

Ignore
1563384411
Reply with quote  #2

1563384411
Report to moderator
1563384411
Hero Member
*
Offline Offline

Posts: 1563384411

View Profile Personal Message (Offline)

Ignore
1563384411
Reply with quote  #2

1563384411
Report to moderator
1563384411
Hero Member
*
Offline Offline

Posts: 1563384411

View Profile Personal Message (Offline)

Ignore
1563384411
Reply with quote  #2

1563384411
Report to moderator
Nobitcoin
Legendary
*
Offline Offline

Activity: 966
Merit: 1000


In holiday we trust


View Profile
June 19, 2014, 07:09:21 PM
 #2

Good idea shame I didn't think of it myself  Wink
Jaaawsh
Sr. Member
****
Offline Offline

Activity: 462
Merit: 250

Check out Fastslots.co !!!!


View Profile
June 19, 2014, 07:14:53 PM
 #3

This is cool :3 but you should give out one free hint to everyone. Just make it a really shitty hint that COULD point us in the right direction.

wrayjustin
Newbie
*
Offline Offline

Activity: 35
Merit: 0


View Profile WWW
June 19, 2014, 08:37:16 PM
 #4

Good idea shame I didn't think of it myself  Wink

Thanks!  Hope to see you in there.

This is cool :3 but you should give out one free hint to everyone. Just make it a really shitty hint that COULD point us in the right direction.

We're actually discussing this now.  Here's what I said to another player:

Quote
Just keep in mind that brute-forcing is an option and we need to ensure we don't provide enough information that would allow someone to simply brute-force the challenge for free.

As it stands right now the search-space is massive, any line or collection of lines from any Movie ever. But once we get more specific, that search-space shrinks dramatically and brute-forcing is a real and fair possibility.

Additionally, One thing we are likely to do is post a second challenge tonight, which has a smaller bounty, and therefore, smaller hint prices. This will hopefully let people try the game out, with a much smaller investment.
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!