INVESTIGATIVE DOSSIER · RESEARCHED 03 OCT 2026
BITCOIN PUZZLE #30 · 30-BIT · SOLVED

Bitcoin Puzzle #30

Solved and swept on 16 Jan 2015. The private key for this 30-bit puzzle was found inside [2^29, 2^30) and the balance was moved out.

Why puzzle #30 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 #30 needs about 2^28 key tests on average, within reach of a laptop in minutes.

Re-solve #30 in your browser All 256 puzzle addresses