Introduction to Bitcoin Quantum
Bitcoin evolved for the quantum computing era
What is BTQ (Bitcoin Quantum)?
BTQ is a post-quantum POW cryptocurrency designed for the post-quantum era. It maintains Bitcoin's economic model and network architecture while implementing quantum-resistant cryptographic primitives and enhanced transaction capacity specifically designed for large post-quantum signatures.
Built on Bitcoin Core's proven codebase, BTQ features a 64 MiB block size limit (compared to Bitcoin's 1MB) and integrates a PPK (Post-Quantum Key) infrastructure that enables seamless integration of future quantum-resistant signature algorithms as they become available.
The Quantum Threat
Quantum computers use the principles of quantum mechanics to process information in ways that classical computers cannot. While this technology holds immense promise for scientific advancement, it also poses a significant threat to current cryptographic systems.
- Current Bitcoin uses ECDSA (Elliptic Curve Digital Signature Algorithm)
- Quantum computers could break ECDSA using Shor's algorithm
- This could compromise private keys and digital signatures
- The threat is real and approaching within the next 10-20 years
Post-Quantum Architecture
BTQ implements integrated support for multiple post-quantum signature algorithms:
Dilithium
NIST-standardized lattice-based digital signature algorithm integrated into BTQ's PPK infrastructure for quantum-resistant transactions.
Falcon
Compact lattice-based signatures optimized for smaller signature sizes while maintaining post-quantum security guarantees.
SPHINCS+
Hash-based signature scheme providing conservative security assumptions and additional quantum resistance layers.
PPK Infrastructure
Post-Quantum Key infrastructure enabling future integration of new quantum-resistant algorithms as they are developed and standardized.
Key Features
Enhanced Block Capacity
64 MiB block size limit with 32 MiB soft cap to accommodate larger post-quantum signatures while maintaining network efficiency.
Bitcoin Economic Model
Maintains Bitcoin's proven UTXO model, scripting system, and economic incentives while adding post-quantum security features.
Three-Phase Roadmap
Currently in Phase 2 (v1.1.0) with Dilithium integration. Phase 3 will activate full consensus-level post-quantum signatures.
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