The Premier Post-Quantum Secure ZK Blockchain to Invest In - QBit SmartChain
PQCSecurity.ZKSpeed.
Validators verify proofs, not signatures. One proof replaces 1,000 signature checks. 30,000 TPS with post-quantum security across a multi-chain ecosystem.
Why Proof-Based Consensus
Sentries prove. Validators verify. No re-execution.
How QBit Works
Sign
Prove
Verify
Users sign transactions with ML-DSA-65, the NIST-standardized post-quantum signature scheme.
Sentries batch 1,000 signatures into a single ~147 KB STARK proof in 3.5–5 seconds.
Validators verify the proof in ~20 ms. They never see a single signature.
Sign
Users sign transactions with ML-DSA-65, the NIST-standardized post-quantum signature scheme.
Prove
Sentries batch 1,000 signatures into a single ~147 KB STARK proof in 3.5–5 seconds.
Verify
Validators verify the proof in ~20 ms. They never see a single signature.
0
TPS
Throughput
~0s
Finality
Consensus
0 KB
Proof Size
Per Batch
Technology Pillars
What the protocol actually runs on.
Post-Quantum Signatures
ML-DSA-65 (FIPS 204) gives 128-bit post-quantum security today. The sig_version field lets QBit adopt future schemes, including smaller-signature alternatives, without protocol changes.
Learn moreZK-STARK Proofs
Transparent, hash-based proofs. No trusted setup. >128-bit single; 120-bit recursive security on the Goldilocks field.
Learn moreHelix-ZK Consensus
Leaderless DAG-based protocol with 3-chain finalization. Safe under β < 1/3 adversarial stake.
Learn moreQChains
Sovereign app-specific blockchains with QBit's post-quantum security and shared finality. Register permissionlessly. Cross-chain messaging goes through Merkle proof verification against the shared DAG, not bridges.
Cryptographic Agility
The protocol doesn't depend on any single cryptographic standard. When NIST finalizes FN-DSA with 5x smaller signatures, QBit adopts it via governance. No hard fork, no migration.
Join the Network
The Governors
Validators
Maintain the DAG, verify ZK proofs, sample data availability, and execute state transitions.
- 4-core CPU
- 16 GB RAM
- 256 GB NVMe
- 500 Mbps fiber
- Min stake: 10,000 QBIT
The Provers
Sentries
Collect transactions, verify ML-DSA-65 signatures, generate STARK proofs. No permission needed to run one.
- 4× RTX 4090 GPU
- 256 GB+ RAM
- 200 Mbps network
- Proving bond: 10,000 QBIT
The Builders
Developers
Write contracts on the deterministic WASM VM, or launch your own QChain with shared post-quantum security.
- QVM (WASM-based)
- Launch a QChain (50,000 QBIT bond)
- Bridgeless cross-chain messaging
- Parallel execution
