1.1 BTC Puzzle by Phemex

[100bitcoin]

https://blockchair.com/bitcoin/address/1h8BNZkhsPiu6EKazP19WkGxDw3jHf9aT

Details: https://phemex.com/references/articles/try-to-solve-our-2-btc-puzzle

First Official of Hints (https://phemex.com/references/articles/a-letter-from-max)...

1. The first 21-digit prime found in consecutive digits of e is: 957496696762772407663

2. The private key you derive from Satoshi’s portrait is a big integer, not Wallet Import Format (WIF)

3. The filename of the picture is irrelevant

4. The next step involves converting some words from the portrait, without I/O, into a 27-digit number

5. Go back to step 4) again if you can’t figure it out

Last Official Hint (https://phemex.com/references/articles/the-last-hint-of-phemex-2-1btc-puzzle): After meeting the Phemex team, the Goddess Pheme repeated the words “little is big”, twice within three days.

Community Gathered Hints: https://github.com/olalonde/phemex-puzzle/blob/master/CLUES.md

Solution will be revealed on: 21st of March, 2020.

[seoincorporation]

21 digits prime number... that's a shit ton of options.. i mean, if for 12 digits we have 33,489,857,205 options, then for 21 digits should be a ton of numbers.

I can imagine 2 ways to solve this:

1.- We get all the prime number of 21 digits, and verify them as a brain wallet.

2.- read e while verify 21 digits chains and calculate of the number is a prime number.

By the way, i don't like at all the fact about someone already move BTC on the price addy.

[MURONDI]

why don't you explain in detail in this thread, I don't really like puzzles, and it seems that the puzzle is difficult to solve, I don't even see any posts that are similar to private keys, only visible face images and some writing, Alright, good luck solving friends' riddles.

[chennappa121]

It will be very difficult to solve the puzzle  because I was trying more than three days now with my own methods. but still I am not able to find solution, and still nobody can claim that because first 21 digits prime number found in consecutive digits of e, it is really very big numbers maybe somebody going to resolve this puzzle soon and I am still in the hunting process.

[goinmerry]

why don't you explain in detail in this thread, I don't really like puzzles, and it seems that the puzzle is difficult to solve, I don't even see any posts that are similar to private keys, only visible face images and some writing, Alright, good luck solving friends' riddles.

That fact that you don't like puzzles, then why someone needs to explain to you the details here? You even bother posting on this thread.

And of course, that puzzle is difficult to solve and you have to expect that.

OP gives the link for it and all details are there. Actually, the puzzle is up for about a week now so I think there are people who are in progress now solving that.

[btc_angela]

Yep, it's a difficult puzzle indeed, commensurate with the rewards.

For everyone, you can follow their official twitter account and see how those trying to solve the puzzle is doing.

https://twitter.com/Phemex_official/status/1217808220703473664

[Ortek]

Another brainbreaker, nice
Good luck to everyone....2.1btc is a nice reward.

[jossiel]

Another brainbreaker, nice
Good luck to everyone....2.1btc is a nice reward.

Actually the reward is 1.1BTC and the other 1BTC will go to your exchange's account but will they allow you to withdraw that amount too? The puzzle is complicated and it's one of the hardest.

Good luck to those folks that will solve this puzzle.

[TimtheYoutuber]

why don't you explain in detail in this thread, I don't really like puzzles, and it seems that the puzzle is difficult to solve, I don't even see any posts that are similar to private keys, only visible face images and some writing, Alright, good luck solving friends' riddles.

Why in the world would it be easy to solve, its 1.1 BTC.

Kind of silly to even comment on this thread if you are not interested.

[Getmon]

why don't you explain in detail in this thread, I don't really like puzzles, and it seems that the puzzle is difficult to solve, I don't even see any posts that are similar to private keys, only visible face images and some writing, Alright, good luck solving friends' riddles.

Why in the world would it be easy to solve, its 1.1 BTC.

Kind of silly to even comment on this thread if you are not interested.

This is not an easy giveaway. No one would simply let you solve a very easy puzzle with a prize of 1.1 BTC.

The fact that this is a puzzle means this better be challenging or else this is not something the entire community would have fun solving.

[AML Soap]

To solve this problem :

1)

Download PARI/GP

2)

Calculate e as accurate as you want, even 1 million digits do not take very long. You just have to establish enough memory with allocatemem()

3)
Convert each block of length 21 that does not begin with a 0

with the command isprime(,2) which is a rigorous primality test. The best way is probably to create an array with the digits-command.

4)

The first such block is the answer.

I did not post the full code, but I mentioned the necessary commands. I want to leave a little work to the OP.
source: https://math.stackexchange.com/questions/3513323/what-is-the-first-21-digit-prime-in-consecutive-digits-of-e



Have fun and please consider PM'ing me for the tip payment.

[pooya87]

21 digits prime number... that's a shit ton of options.. i mean, if for 12 digits we have 33,489,857,205 options, then for 21 digits should be a ton of numbers.

you misread it. it is not prime numbers that have 21 digits, it is a prime number with 21 digits that is found inside digits of e and it is the first consecutive one.
it basically took me a minute to find the first 10k digits (http://mathshistory.st-andrews.ac.uk/HistTopics/e_10000.html) and another minute to write a small code and then about a nano second to find the answer. it is also posted by others: 957496696762772407663
it doesn't help though since there is nothing else to continue with!
as i said before, this still looks to me like an advertisement, i don't think it is even solvable. a brand new exchange is not just giving away $17850 and promise lots of $100 rewards!

[trantute2]

I can confirm, that it's

957496696762772407663

2.718281828459045235360287471352662497757247093699959574966967627724076630353547 ...

Check my code, but my C-skills are very limited:

https://bitcointalk.org/index.php?topic=5219708.0

It is not unusual to find this number so early in e, since the prime number distribution for small values like 10^21 to 10^22 is still dense.

But what is this number good for?

[100bitcoin]

So far, I have found that the puzzle rounds about the following...

- 957496696762772407663
- Phemex
- BTC/Bitcoin
- ETH/Ethereum
- XRP/Ripple
- Satoshi
- Nakamoto

I guess, following transformations have major role to play to find the HEX private key of 1h8BNZkhsPiu6EKazP19WkGxDw3jHf9aT...

- DEC to HEX
- ASCII to HEX
- SHA-256

[Mongodb Tablespace]

.....
But what is this number good for?

It is good for the exchange who gets free advertising until someone, someday finds the answer, if there is one. By then, they will probably have profited more than 2 BTC by building their customer base.

[jossiel]

They have released the 21 digits prime number with their latest tweet and it says that some hints can be found on their blog.

https://twitter.com/Phemex_official/status/1220426988126687236

https://twitter.com/Phemex_official/status/1220345172015214592

https://phemex.com/references/articles/a-letter-from-max

[tambok]

They have released the 21 digits prime number with their latest tweet and it says that some hints can be found on their blog.

https://twitter.com/Phemex_official/status/1220426988126687236

https://twitter.com/Phemex_official/status/1220345172015214592

https://phemex.com/references/articles/a-letter-from-max

I think still no one finds the correct answer until now, but there's someone who got the 21 digits prime number. Good luck to those who will try to solved the puzzle.

It's really a good strategy how they put up like this kind of puzzle, it's a good marketing having a 1.1 BTC plus 1 BTC as a bonus that's why they gained so much popularity now, for sure many project will have a marketing strategy like this one.

[Cimmy_revenger]

.....
But what is this number good for?

It is good for the exchange who gets free advertising until someone, someday finds the answer, if there is one. By then, they will probably have profited more than 2 BTC by building their customer base.

because one of their goals is certainly the promotion of exchange they have.
we should try first, if one of us wins follow this thread to provide evidence.

[pakhitheboss]

why don't you explain in detail in this thread, I don't really like puzzles, and it seems that the puzzle is difficult to solve, I don't even see any posts that are similar to private keys, only visible face images and some writing, Alright, good luck solving friends' riddles.

If a puzzle is easy to solve it will not be called a puzzle but a question which needs an answer. All puzzles are difficult and when the prize is 1.1 Bitcoin it is bound to be more difficult than normal.

[slaman29]

It's a puzzle for math people. Which I'm not. Not really even very fun to observe since I totally don't get what's going on. I know prime numbers. But probably never used one beyond 4 digits.

So I never participate in these kinds of puzzles. Maybe something more accessible would gain more traction. Otherwise you basically are giving away 1.1 BTC or $10k to just a small circle of guys who study math or engineering or whatever.

And miss out all the regular bitcoin users who actually go on exchanges to give you business.

Just my simple non puzzling 2 cents:)