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7001  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 22, 2016, 11:30:33 AM
what about the names? everybody seems to agree the it is the last name. why not the first letter of the first name?

For the Steve Jobs case, it was the last name, since the letter S can't be after the 5 in a private key. So we assumed that we need the last name of the other names.

sorry if this is a bit OT, but with S and 5 (also I and l i guess and maybe some other combinations) it is only possible to have one of those?
so if i have a 5 no S is possible afterwards and if i have an S no 5 is possible? do i get it right? maybe this can also help us to narrow it down.
and it would be nice to hear something about this. or at least where i can read up on the matter Smiley thx

 Okay I'll tell you what I know.  A private key in WIF (Wallet Import Format) is 51 characters in base58.  For Bitcoin mainnet, the WIF private key will always begin with a 5.  Why?
Because
 1. Take the ECDSA private key which can be any unsigned integer from 0x1 to 0xFFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140
 2. and you place the network identifier (0x80 for bitcoin mainnet) in front. (by the way, 0x simply means hexadecimal format).
 3. You take this result and perform a SHA256 hash on it.
 4. Take the result of that and perform another SHA256 hash on it.
 5. Take the last 4 bytes of the previous result (used as a checksum) and add it to the end of the number in step 2
 6. and finally convert that hexadecimal number to base58 and you have the WIF private key.

Here is the lowest possible address with the network identifier and checksum added:
800000000000000000000000000000000000000000000000000000000000000001A85AA87E
and here is the largest:
80FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140F511BD7A

 As you can see, the range of values is limited by the use of the network identifier which is why when converted to base58, the result will begin with 5 and be limited to H, J or K for the second character.

Read about it here and here.

Now I expect some puzzle solution suggestions from you very soon!


thank you Smiley
and here i a hint from me. 25 could also be Celluloid instead of film. hope this helps Wink

 Celluoid?  I hadn't thought of that.  Thanks!  As soon as I'm home (if the puzzle hasn't been solved) I'll add that possibility.
7002  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 22, 2016, 11:27:45 AM
I'm only asking since I made this mistake.  Did you test your program with a valid private key in WIF?

lol, imagine if my code was wrong all this time, i have ran the code for almost 70-100 million (each time 11 mil-5mil) Cheesy

but no i doubled checked it now and it was ok.
i went through This to create my code and after busting my ass to get it to work i found this written in c# with a nice NuGet package

i tested with the private key on wiki page and a couple from directory[dot]io and today i made a new Electrum wallet to double check it with compressed private keys too. all successful.

 Yes I can imagine... I ran through almost 300 million without realizing my program wasn't valid. 
Thanks for the information.  I'm going to check out the c program.
7003  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 21, 2016, 12:19:45 PM
i think i have worked more on my code and the interface than i have ever worked on the puzzle itself Cool

#master of xaml

but to be fair, i learned a lot in the process about base58 and also conversion to hex, also about multiplying TimeSpan so i am happy.

 I'm only asking since I made this mistake.  Did you test your program with a valid private key in WIF?
7004  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 20, 2016, 04:57:30 PM
Pretty much allot of work even for 0.5 BTC, just the last page is filled with clues, Good luck to those trying to decipher this thing.

it is not just about the prize you get, although i say $290 is a pretty good prize. but it is mostly about the game and solving it. you can call it a treasure hunt.

although what bothers me about this, is the fact that i am not so sure if this is a good puzzle with only one possible solution.

for example you can already see many people straggling about the answers like that plane picture many say "jet" others say "F16" "mig" or it can simply be "Plane" "Airplane" or "Fighter-plane-thingy"

 I am certain that the plane image can only be 3 letters.
7005  Economy / Digital goods / Re: Photo Editing For free on: August 20, 2016, 01:19:23 PM
Here's a task for you.  Can you colorize the flowers in this picture?




Hmm... old Romania....   Sad Sad Sad

 I was finding some old pictures of Bucharest for Bunicul and I enjoyed the way the serenity and simplicity of the image juxtaposes the political climate of the day.
It wasn't meant as any political statement.
7006  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 20, 2016, 01:12:25 PM
what about the names? everybody seems to agree the it is the last name. why not the first letter of the first name?

For the Steve Jobs case, it was the last name, since the letter S can't be after the 5 in a private key. So we assumed that we need the last name of the other names.

sorry if this is a bit OT, but with S and 5 (also I and l i guess and maybe some other combinations) it is only possible to have one of those?
so if i have a 5 no S is possible afterwards and if i have an S no 5 is possible? do i get it right? maybe this can also help us to narrow it down.
and it would be nice to hear something about this. or at least where i can read up on the matter Smiley thx

 Okay I'll tell you what I know.  A private key in WIF (Wallet Import Format) is 51 characters in base58.  For Bitcoin mainnet, the WIF private key will always begin with a 5.  Why?
Because
 1. Take the ECDSA private key which can be any unsigned integer from 0x1 to 0xFFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140
 2. and you place the network identifier (0x80 for bitcoin mainnet) in front. (by the way, 0x simply means hexadecimal format).
 3. You take this result and perform a SHA256 hash on it.
 4. Take the result of that and perform another SHA256 hash on it.
 5. Take the last 4 bytes of the previous result (used as a checksum) and add it to the end of the number in step 2
 6. and finally convert that hexadecimal number to base58 and you have the WIF private key.

Here is the lowest possible address with the network identifier and checksum added:
800000000000000000000000000000000000000000000000000000000000000001A85AA87E
and here is the largest:
80FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364140F511BD7A

 As you can see, the range of values is limited by the use of the network identifier which is why when converted to base58, the result will begin with 5 and be limited to H, J or K for the second character.

Read about it here and here.

Now I expect some puzzle solution suggestions from you very soon!



 

7007  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 20, 2016, 03:56:21 AM
##
 
let me explain about the Upper/Lower cases of my choice.
i say these colors of each picture should mean something too, and they don't look random to me (otherwise what is the point of similar colors Cheesy). so this is my key:
i choose a color and find a box that i am sure about the upper/lower state so i say the rest should be the same too for example since the box #1 is J all the same color should be Upper too.

color index : U=Upper L=Lower : reason index
0 : L : every other color has some reason to be U so i go with L on this color.
1 : U : 1
2 : U : 34
5 : U : 29&41&44
8 : U : 31

i think i will stick to this theory for now, but i may try your suggestions later too.
also the gist was updated. will run the code in the morning

 Interesting idea.  I hadn't considered the colours to mean anything.
7008  Bitcoin / Development & Technical Discussion / Re: Vanitygen: Vanity bitcoin address generator/miner [v0.22] on: August 19, 2016, 09:15:52 PM
I have been reading bits and pieces of this thread but not all so forgive me if I ask a question asked before but.... is there a way to run oclvanitygen across multiple cards, like as an ETH miner would / old setup?

C:\>oclvanitygen.exe -D 0:0 -D 0:1 -D 0:2 -D 0:3 -D 0:4 -D 0:5 1prefix

That's for 6 cards

7009  Other / Off-topic / Re: Need someone who can translate mandarin (I think) Characters into English for me on: August 19, 2016, 06:41:32 PM
Here are the two Images, the first one is the first thing I see and then there are some contractual style papers written in English and then the second image is whats right below that.

If anyone can give me the rough translation, I'd appreciate it.

https://gyazo.com/720d5bfd11ec3abba540024947063871

[Contracts in English Would be Here]

https://gyazo.com/e2cb01620414cd0de3eed71d108a0884

 I don't speak Chinese but I stayed at a holiday inn express last night.


 first image

Code:
 Consent: Please put the mouse on the consent form read
second image
Code:
 Agree

 Disagree

 Please provide the invitation code

 Submit



 
7010  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 18, 2016, 02:07:36 PM
thanks for the explanation.
so here is my updated code with 1,937,664 keys and nothing is right:
https://gist.github.com/Coding-Enthusiast/feeb2200b6201c94fec1bd5b704a2b67
(i will update this in the future if i find a different answer)

maybe others see what i don't see!

 That's nicely laid out.  I just finished night shift so I'm a little tired but I can contribute a few revisions.  First of all, you should only put capitals on proper nouns.

Code:
  

 4 +theKey[3] = new PKeyChar(new char[] { '3', 'p' });  #the symbol is of the miniscule Greek letter pi not Pi
 5 +theKey[4] = new PKeyChar('A');  # Atari is the name of a company and must have a capital
 6 +theKey[5] = new PKeyChar('p');  #parachute is not a proper noun
 7 +theKey[6] = new PKeyChar('j');  # jet is not a proper noun
 8 +theKey[7] = new PKeyChar('w'); # almost certainly this is a wing from the previous image
 
 10 +theKey[9] = new PKeyChar(new char[] { 'Y', 'y' });# The term yo-yo was deemed generic in the U.S. in 1965 maybe try both capital and miniscule for this
 
 12 +theKey[11] = new PKeyChar('i');  # an iron is not a proper noun
 
 16 +theKey[15] = new PKeyChar(new char[] { 'X', 'R', 'k', 'p', 'r', 'x' }); #try the minuscule for X and R as well as k for knee, and p for patella

 18 +theKey[17] = new PKeyChar(new char[] { 'R', 'S', 'r', 's' }); #sonar and radar can also be used without capitals 

 21 +theKey[20] = new PKeyChar('N'); # Nobel was a persons name (proper noun)

 22 +theKey[21] = new PKeyChar(new char[] { 'i', 'h', 's' });  #no capitals and added h for hockey skate
 23 +theKey[22] = new PKeyChar('X'); # probably capital
 24 +theKey[23] = new PKeyChar('Y'); # which means this is also capital
 25 +theKey[24] = new PKeyChar('i');  # igloo is not a proper noun
 26 +theKey[25] = new PKeyChar('f');  # film is not a proper noun
 27 +theKey[26] = new PKeyChar('G'); # Galileo is a proper noun

 29 +theKey[28] = new PKeyChar(The58Char.ToCharArray()); # I think this might be a wildcard so let's try all
 
 39 +theKey[38] = new PKeyChar(new char[] { 'W', 'w'});  #try both
 40 +theKey[39] = new PKeyChar('W', '8');  #this style was introduced with windows 8
   
 43 +theKey[42] = new PKeyChar('b'); #balloon is not a proper noun (perhaps try all too)
 
 
 46 +theKey[45] = new PKeyChar('E');  #Etch-a-Sketch needs a capital

 48 +theKey[47] = new PKeyChar('X');  # based on the clue layout, I'm now convinced this represents the element Xenon
 49 +theKey[48] = new PKeyChar('m'); #if it truly stands for lamp, use small letter (do you have capacity to make this a wildcard?)
 50 +theKey[49] = new PKeyChar('T');  # Tesla is the name of a company (and a family) it needs a capital
 51 +theKey[50] = new PKeyChar('m'); # mouse is a generic term so use the small letter


 Wish I could do more but I'm getting ready to go on a trip and I wont be able to take my computer with me ;(
Good luck!
 
7011  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 17, 2016, 05:52:24 PM
Awesome!  Thanks for sharing.
I can't complain about many of your solutions but I strongly disagree with
 #16.  This must be Linus Yale Jr as he Yale created one of the first lock sets that used a pin and tumbler design.
Really like your idea for
 #48 lamp.  I hadn't thought of that.  As far as
 #35, I think Pfizer and Viagra are possibilities but not Z (Z seems too obvious).

As for hex conversion,

here a number is represented in base 10

10n10n-110n-2...10n-(n-1)100

100=1 (ones)
101=10 (tens)
102=100 (hundreds)
103=1000 (thousands)
104=10000 (ten thousands)

and a number represented in base 16 looks similar

16n16n-116n-2...16n-(n-1)160

 To convert to hex, divide by 16n where n is a value that will give you a number not greater than the number being converted but will not result in a number greater than 16 when divided.  Do the same with the remainder until you have a number less than 16 which will represent the final digit.

numbers greater than 9 are represented as the letters A through F.

ie convert 20,000 decimal to hex

first division?
160=1 (too small)
161=16 (too small)
162=256 (too small)
163=4096 (maybe) <--- use this one
164=65535 (too large)

20,000/163=4 remainder 3616
3616/162=14 remainder 32
32/161=2 remainder 0
0/160=0

so,
the 4th digit from the right is 4
the 3rd digit from the right is E (E represents 14)
the 2nd digit from the right is 2
the 1st digit from the right is 0

20,000 dec = 4E20 hex

Hope that explains it.
7012  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 17, 2016, 12:20:01 PM
##
For the Jet image I'm also using F14 an now I think y should have added M for Mig
##

if the plane picture is representing a Mig, or F14,... then it makes the whole puzzle a bad design (shit puzzle) because the puzzle should have only one solution and it should have enough clues so that you can find that only one solution.
here there is only a picture of a place that looks like Fighter places which are called Jets and all those other answers are types of Jets and unless there is clue pointing to the picture being F## or Mig there is no reason for choosing a non-obvious answer.

same goes for the rest.

##
 It is evident there are mistakes since he found nothing.  The whole point of this thread was to share your ideas and solutions.  So where do you think the mistakes lie?

i will share my variations in a while. but i am sure the problem is with upper/lower case.

##
how long did it actually take you to get through all those possibilities? besides that i think there are a lot of mistakes so it wont be possible to find it out

about an hour, my CPU is super old haha. honestly i am surprised that it only took an hour to go through 149 Million
mouse over the time i posted the previous comment it shows the edit time Wink

 Firstly, it's not a shit puzzle; it's challenging.  I don't share your concern with respect to capital/miniscule letters.  If the clue represents a proper noun, then the letter must be capitalized.  The word jet should not be capitalized whereas Steve Jobs requires capital letters. Perhaps there might be some ambiguity with Kevlar but the occaisional pair to test isn't going to make it impossible.  We need to solve the clues for the letters they represent; not knowing those results in 58 possibilities for the character and that is the largest determination of difficulty in solving the puzzle.
 One thing that I find frustrating is that even though I have tried half a billion possibilities which failed to result in a valid key, I am unable to rule out any possibilities.

7013  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 16, 2016, 06:45:56 PM
ok i wrote a code to check the private key but there are so many answers that i don't know or am not sure about the char to put for the picture some are 2 or 3 possibilities and a couple of them are the whole 58 char Cheesy

so i am down to 149,846,016 possible private keys Cheesy assuming the rest of answers are correct and also in correct case (upper or lower)



i will run it for a little while longer and then will give up and try to reduce the possible keys to check.

Update: all checked and nothing found lol
how long did it actually take you to get through all those possibilities? besides that i think there are a lot of mistakes so it wont be possible to find it out

 It is evident there are mistakes since he found nothing.  The whole point of this thread was to share your ideas and solutions.  So where do you think the mistakes lie?
7014  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 16, 2016, 05:59:13 PM
ok i wrote a code to check the private key but there are so many answers that i don't know or am not sure about the char to put for the picture some are 2 or 3 possibilities and a couple of them are the whole 58 char Cheesy

so i am down to 149,846,016 possible private keys Cheesy assuming the rest of answers are correct and also in correct case (upper or lower)



i will run it for a little while longer and then will give up and try to reduce the possible keys to check.

Update: all checked and nothing found lol

 I'm not surprised.  The last set I checked was almost 300 million addresses and I found nothing.  Even with the clues this is proving to be quite difficult!
7015  Local / 跳蚤市场 / Re: 个人助理需要 - (Thread In English, please) on: August 16, 2016, 12:55:55 PM
No reply?

不问就听不到假话  Roll Eyes
他没有信守诺言  - https://bitcointalk.org/index.php?topic=1444316.0

7016  Bitcoin / Development & Technical Discussion / Re: Vanitygen: Vanity bitcoin addresses FAST! on: August 16, 2016, 12:28:44 PM
Am I missing something or is this a bug? When I find with a text file input with multiple prefixes, the next match difficulty after each match is found stays the same.

 Look on page 119 on this thread at my answer.
Probability of a match is based on all desired prefixes.
7017  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] GPU Coin - Full PoS - 15% on: August 16, 2016, 12:25:03 PM
HEY, look whose back !!!!!!!

 Hey!  Good to have you back. 
You're going to have to throttle back your typing speed so you don't get another ban.  The GPUcoin community needs you Wink
7018  Other / Archival / Re: BTC puzzle! 0.5 BTC on: August 11, 2016, 06:14:05 PM
Damn!  I decided it would be prudent to test my program with known values before I discarded the previous results and it turns out that my program isn't properly hashing the private key.
I was converting from WIF into hex, chopping off the checksum and hashing the result twice.  Turns out that's not the right way to do it.  Apparently I need to convert to binary before doing the hashing.

Edit: okay, fixed it with pack

Code:
sha256_hex(pack("H*",$other))

back in business Wink
7019  Economy / Digital goods / Re: Photo Editing For free on: August 11, 2016, 12:43:13 PM
Calm down man.  You are only allowed to bump your thread once every 24 hours and make sure to delete your previous bumps when you do.

Sent you the PM!

OP did a great job with my request.  It's beautiful.
7020  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] GPU Coin - Full PoS - 15% on: August 10, 2016, 12:19:17 PM
AWww crap!  This is very disturbing news about the ban.
The coin founder can't get his original account reinstated to his control which means he can't update the ANNs.  Posting new ANNs under control of his current account got him banned for duplicate posting.
Does anyone know if he has exhausted all methods of getting his original account returned to his control?  
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