INVESTIGATIVE DOSSIER · RESEARCHED 03 OCT 2026
BITCOIN PUZZLE #36 · 36-BIT · SOLVED

Bitcoin Puzzle #36

Solved and swept on 17 Jan 2015. The private key for this 36-bit puzzle was found inside [2^35, 2^36) and the balance was moved out.

Why puzzle #36 still matters

A solved puzzle is a benchmark. Running a cracker against it should recover the real private key, which is how you tell genuine code from a toy. Puzzle #36 needs about 2^34 key tests on average.

Re-solve #36 in your browser All 256 puzzle addresses