Ledger-backed
Every ticket is logged to a shared ledger. No two sessions search the same range on the same window.
01
What it is
lotterypzl is the conductor CLI and guided TUI for Bitcoin Puzzle lottery search. Each run claims a small contiguous key range, records the ticket in a ledger, and completes a bounded engine work budget without assigning the same window twice.
Two engines
PZL-Roo for known-pubkey puzzles (Kangaroo windows). PZL-Hunter for address-only scanning.
Detached sessions
Launch --detach on a GPU rental. Monitor live, tail logs, stop and resume by run ID.
02
Explore the puzzle
Database →
All 160 puzzles with addresses, keys, rewards, and live balance. Filter, search, click for details.
History →
From the 2015 genesis transaction to the latest solves. Full timeline with on-chain links.
Tools →
Every tool for solving puzzles — Keyhunt, BitCrack, Kangaroo, and our own lotterypzl suite.
Theories →
Who created the puzzle and why? Four theories with evidence for and against.
How to claim →
Found a key? Don't get robbed. Learn from the puzzle 66 and 69 incidents.
FAQ →
Everything you need to know about the Bitcoin Puzzle challenge.
03
Honest math
For the active puzzle #140 with window size w bits:
prob ticket contains the key
= 2(w − 139)
ops per ticket (SOTA Kangaroo)
≈ 1.15 × 2(w/2)
w = 96 → 1 in 8.80 trillion per ticket
The 1.15 factor is an ideal lower bound. Distinguished-point overhead raises effective K, and a completed Kangaroo work budget is probabilistic rather than exhaustive key-by-key coverage.
Expected value on high puzzles is usually negative.
This tool is for honest, bounded participation — not a ticket marketplace or a get-rich scheme.
Reality check: High puzzles are a lottery with negative expected value.
lotterypzl helps you search honestly, coordinate distinct tickets with a shared ledger,
and never waste GPU time on duplicate ranges. Verify any candidate key with independent tools.