Bitcoin Puzzle for 1000 BTC

The Bitcoin Puzzle is a cryptographic challenge consisting of 66 addresses and an extended version up to 160 levels, each of which stores bitcoins. The private keys are generated in increasing bit ranges, and the total reward is approximately 1000 BTC.

Structure and Ranges

Each level contains an address with BTC and corresponds to a private key in the range of 2ⁿ to 2ⁿ⁺¹ - 1. For example, Puzzle #70 requires a key from 2⁷⁰ to 2⁷¹ - 1, which is ~1.18 quintillion values.

Address Examples

Puzzle #	BTC	Private Key Range	Address	Status
70	7.0	2⁷⁰ ≤ k < 2⁷¹	1PWo3JeB9jrGwfHDNpdGK54CRas7fsVzXU	Unresolved
71	7.1	2⁷¹ ≤ k < 2⁷²	1JTK7s9YVYywfm5XUH7RNhHJH1LshCaRFR	Unresolved
72	7.2	2⁷² ≤ k < 2⁷³	12VVRNPi4SJqUTsp6FmqDqY5sGosDtysn4	Unresolved
73	7.3	2⁷³ ≤ k < 2⁷⁴	1FWGcVDK3JGzCC3WtkYetULPszMaK2Jksv	Unresolved
74	7.4	2⁷⁴ ≤ k < 2⁷⁵	1DJh2eHFYQfACPmrvpyWc8MSTYKh7w9eRF	Unresolved
75	7.5	2⁷⁵ ≤ k < 2⁷⁶	1Bxk4CQdqL9p22JEtDfdXMsng1XacifUtE	Not resolved

Search tools

• BitCrack: GPU brute force by range.
• KeyHunt: CPU/GPU tool with BSGS and Kangaroo methods.
• Grid generators: UI interfaces of visual entropy.
• Address validation: No server part, everything through the browser.