Complete Technical Information & System Overview
70-Bit Private Key Search
Target Range: 0x400000000000000000 - 0x7FFFFFFFFFFFFFFFFF
Bitcoin puzzles are cryptographic challenges where private keys to Bitcoin addresses containing funds are hidden within specific key ranges. Each puzzle represents a mathematical challenge to discover the correct private key.
Each solved puzzle contains actual Bitcoin that can be claimed by finding the correct private key. The rewards increase with puzzle difficulty.
Private keys are hidden within massive key spaces that require distributed computational power to search efficiently.
Thousands of participants work together, combining computing resources to solve these cryptographic challenges.
Complete overview of all Bitcoin puzzles with current status and key specifications.
| Puzzle Range | Key Space | Bitcoin Prize | Status | Complexity |
|---|---|---|---|---|
| #1 - #20 | 2^20 - 2^30 | 0.001 - 0.1 BTC | ✅ SOLVED | Beginner |
| #21 - #30 | 2^30 - 2^40 | 0.1 - 0.5 BTC | ✅ SOLVED | Intermediate |
| #31 - #40 | 2^40 - 2^50 | 0.5 - 1 BTC | ✅ SOLVED | Advanced |
| #41 - #50 | 2^50 - 2^60 | 1 - 2 BTC | ✅ SOLVED | Expert |
| #51 - #60 | 2^60 - 2^65 | 2 - 4 BTC | ✅ SOLVED | Master |
| #61 - #70 | 2^65 - 2^70 | 4 - 7 BTC | ✅ SOLVED | Elite |
| #71 - ACTIVE | 2^70 keys | 7.1 BTC | 🔄 IN PROGRESS | Extreme |
| #72 - #75 | 2^71 - 2^75 | 8 - 10 BTC | ❌ UNSOLVED | Extreme+ |
| #76+ | 2^75 - 2^160 | 10+ BTC | ❌ UNSOLVED | Legendary |
Our distributed system employs advanced optimization techniques to efficiently search the massive 70-bit key space of Puzzle #71.
The 2^70 key space is divided into manageable 44-bit chunks, each containing 17.6 trillion keys for optimal processing.
Puzzle #71 Key Range: 0x400000000000000000 - 0x7FFFFFFFFFFFFFFFFF
Total Keys: 2^70 = 1,180,591,620,717,411,303,424
Chunk Size: 2^44 = 17,592,186,044,416 keys
Total Chunks: 2^26 = 67,108,864 chunks
Each client processes chunks using highly optimized cryptographic algorithms tailored for specific GPU architectures.
Secp256k1 elliptic curve operations
SHA-256 and RIPEMD-160 optimization
Real-time Bitcoin address verification
Centralized server manages chunk distribution, progress tracking, and duplicate work prevention across all clients.
Database Schema:
├── chunks
├── clients
└── solutions
Turing GPUs: 300-1600M keys/second
Pascal GPUs: 100-600M keys/second
System Average: ~3000M keys/second
Per Chunk: 2-8 hours
Daily Progress: 3-12 chunks/client
Total Estimate: ~1,200 days at current rate
GPU Utilization: 95%+
Memory Efficiency: Optimized
Network Overhead: Minimal
The client that discovers the correct private key receives 20% of the 7.1 BTC prize (approximately 1.42 BTC).
Active participants share 80% of the prize pool (5.69 BTC) distributed proportionally based on their computational contribution.
Rewards are automatically distributed to registered Bitcoin addresses upon puzzle solution verification.
Participants must register a valid Bitcoin address to receive rewards. Contributions without registered addresses are still valuable but ineligible for reward distribution.
Visit the Downloads page to get the client optimized for your hardware architecture.
Run the client and provide your participant name and Bitcoin wallet address for reward eligibility.
The client automatically connects, receives work assignments, and contributes to solving Puzzle #71.
Track your contribution and overall system progress on the Statistics Dashboard.
Puzzle #71 specifically targets the 2^70 key space as the next logical challenge following the solved 65-70 bit puzzles.
44-bit chunks (17.6T keys) provide optimal balance between client processing time and server coordination overhead.
Yes, all chunk completions are recorded and contribute to your share of the reward pool.
Multiple instances are supported but should run on different hardware to avoid work duplication.