On January 15th, 2015, a strange project quietly emerged on the Bitcoin network – no announcement, no fanfare.

Just 160 ordinary-looking Bitcoin addresses.
Each containing a small, but real amount of BTC. Publicly visible. And yet… completely inaccessible.

The creator? Unknown -maybe Satoshi Nakamoto?
The challenge? Find the private key – and the Bitcoin is yours.

No clues.
No passwords.
Only: pure mathematics.

The first few puzzles felt almost playful – easily cracked by those familiar with cryptography.
But with each address, the difficulty scaled. Sharply. Brutally.

A few pioneers claimed early victories.
But the rest? Still untouched. Still holding.
Some are now worth thousands, others millions.

They just sit there. Waiting.
For someone with enough computing power, determination, a bit of luck and the right Program to solve the Puzzle!

But the story didn’t end there.

2017-07-11:
An unexpected twist – Funds from puzzles #161–256 (originally separate from the initial 160) were quietly moved into addresses from the lower range, increasing the total value of the original set. A mysterious redistribution, as if the puzzle’s creator wanted to raise the stakes.

2019-05-31:
Then, something strange – a series of microtransactions, exactly 1000 satoshis each, sent from selected addresses:
#65, #70, #75, all the way up to #160.
Was it a test? A signal? An experiment?
Perhaps an attempt to compare whether a transaction history made certain keys easier to find than untouched wallets.
No one knows for sure.

2023-04-16:
The mystery deepens.
In a bold move – by someone presumed to be the original creator – the prize pool was multiplied by ten.

Now:
Puzzle #68 holds 6.8 BTC,
Puzzle #69 holds 6.9 BTC,
…
Puzzle #160? A staggering 16 BTC.

Who would do this? And why?
No message. No explanation.
Just higher stakes.

Years have passed.
The puzzles remain.
Unsolved. Watching.

A monument to cryptography, code… and curiosity.
A silent challenge whispered across time:

Come find me – if you can.

The Bitcoin Puzzle Cracker

A powerful Program for Windows that uses random private key generation within a user-defined range to match against any Bitcoin address.

It runs on all your CPU cores, supports multi-machine distribution,
and checks millions of keys per session.

With some patience – and the right timing – this tool could be your key
to cracking history’s most cryptic crypto puzzle.