The author of the challenge, has placed 3 more smaller prizes, which may or may not help to solve the grand prize, the youngest of them has already been claimed.
From the website https://bitcoinchallenge.codes/ you can access the proposed challenge. The only thing that is provided is a high quality image in PNG format, divided into contiguous hexagons and pentagons in different reliefs, as a mosaic. Some of them contain some text / numeric character that seem to be clues to their resolution.
Resolving the 0.1 BTC award:
At the address https://blockexplorer.com/address/1446C8HqMtvWtEgu1JnjwLcPESSruhzkmV you can check the existence of the prize and its withdrawal by the winner of 0.1 BTC.
There are still 2 prizes over 0.2 BTC and 0.31 BTC, in addition to the 310 BTC grand prize
To get to the first prize, you have to look at the 6×3 grid that contains each cell an apparently hexadecimal number of 3 digits each.
Above the grid, in the image, it appears very small diagonally written OCT 2 2018. Using 20181002 as a key, change all the original hexadecimal values to a new value by subtracting the key, as shown below:
and you get a new Hexadecimal string.
The first repetition line 310 is an indicator that tells you that it did it right, so it can be deleted, which leaves you with 12 sets of hexadecimal numbers, which when converted to decimals are all less than 2048.
Hex: 1AA 0FC 32D 5FF 78F 643 42C 5C7 490 2F4 36E 43B
Decimal: 426 252 813 1535 1935 1603 1068 1479 1168 756 878 1083
Each number, indicates a word to generate a seed of a wallet, according to the standard BIP0039, so by changing each number by its corresponding word there remain 12 words that make up a seed wallet:
cry buyer grain save vault sign lyrics rhythm music fury horror mansion
We use a wallet seed generation tool:
BIP32 Derivation Path: m / 44 ‘/ 0’ / 0 ‘/ 0/0
Public Key: 0376a376c4c2fc0ffad1a5d87f2100343d2cd29a5f7859458e545857727133e349
Private Key: KzkZxdhRGxB7eX4u1skXkfJ7VB8JfPp7Nfos3jiF7PQUNMh2SHDE
We hope it serves as help to solve the great challenge 😉
The difficult thing is not to learn, the difficult thing is to know how to teach.
Editor and coordinator of the free book “La era de las BLOCK punto COM”
CEO of bitcoiner.today