6 BTC · Puzzle 71
Tools
Converters, a bit grid, a local range walk, odds, and cost. Every private key stays in this tab. Built for Puzzle 71, not a generic 256-bit toy.
160 puzzles
The 2015 catalog. How much harder than 71, on-chain address, Hunt into the worker.
Key converter
HEX, WIF, decimal, binary → both addresses. Auto-detects what you paste. Stays in this tab.
Bit hunter
71 switches, locked to Puzzle 71. Flip bits, see the address, WIF, and whether it hits the pot.
Range scan
Walk a HEX range in this browser. Default target is the Puzzle 71 wallet. Nothing is uploaded.
Odds
How much of 2⁷⁰ you have actually touched, and the chance this hour / day / year.
Cost
Rent or wall power vs. keys scanned vs. the 6 BTC prize. Live BTC price when the tape is up.
GPU bench
BitCrack-class rates. Time for one range vs. expected years on Puzzle 71 — their .44 list is junk.
