Open Source · Apache-2.0 · Pre-launch

The Cryptocurrency Built to Survive Quantum Computers

ShieldBit replaces every quantum-vulnerable algorithm with NIST-standardized post-quantum cryptography — without sacrificing Bitcoin's proven monetary model.

View on GitHub Read Whitepaper ↓

Why ShieldBit

Built for the Post-Quantum Era

Every component was designed from scratch with quantum resistance as the top constraint — not an afterthought.

🔐

ML-DSA-65 Signatures

NIST FIPS 204 — immune to Shor's algorithm. Every transaction is signed with a lattice-based signature scheme that no known quantum computer can break.

⛏️

Bitcoin Merge-Mining

SHA-256 Proof-of-Work means ShieldBit is merge-minable with Bitcoin from day one. Bitcoin miners earn SBT with zero additional energy cost.

⚡

Native Payment Channels

Lightning-like instant payments are a first-class Layer 1 feature — not a bolted-on Layer 2. Channels include a three-phase dispute system with auto-bounties.

🔄

Universal Atomic Swaps

Trustless cross-chain exchange with Bitcoin, Ethereum, and any HTLC-capable chain using Hash Time-Locked Contracts natively in the protocol.

👁️

Optional Stealth Addresses

Privacy when you need it. X25519 ephemeral DH key exchange combined with ML-DSA spending. Exchange-compatible — unlike Monero.

🛡️

All Bitcoin Bugs Fixed

Transaction malleability, overflow attacks, time-warp attacks, Year 2106 timestamp overflow, duplicate coinbase txids — all addressed in the base protocol.

Under the Hood

Pure Python Reference Implementation

A clean, auditable codebase with zero obfuscation. Every cryptographic decision is documented and justified.

🔑
ML-DSA-65 (NIST FIPS 204) Post-quantum digital signatures via the cryptography library (≥44.0)
#️⃣
SHA3-256 + double-SHA256 SHA3 for all internal hashing, double-SHA256 for PoW (merge-mining compat)
📦
Bech32m Addresses (sb1…) BIP-350 encoding with custom HRP, implemented from scratch
🗝️
Shamir Secret Sharing k-of-n recovery over GF(2^8) — built-in key backup without third parties
🌐
asyncio P2P Node Full compact block relay, GCS filters, and peer discovery
🔒
AES-256-GCM Keystore PBKDF2-encrypted wallet keys, never stored in plaintext

        # Install and create a wallet

        pip install shieldbit

        # Generate a new quantum-safe wallet

        shieldbit wallet create

        # → Address: sb1q7f3k2m...

        # Start mining (merge-mineable)

        shieldbit mine --threads 4

        # Send SBT to any sb1 address

        shieldbit send sb1q... 1.5

        # Open a native payment channel

        shieldbit channel open <peer_pubkey> 10.0

Roadmap

Where We Are

Honest, transparent progress tracking — no vaporware.

✅

Core Protocol DONE

~8,700 lines of Python. Full UTXO model, ML-DSA-65 signatures, SHA3 hashing, payment channels, atomic swaps, stealth addresses, compact filters, and P2P node.

✅

Test Suite (127 tests) DONE

Full CI/CD via GitHub Actions. Every push triggers an isolated cloud build. All 127 unit tests pass.

✅

Domain & Infrastructure DONE

shieldbit.org registered on Cloudflare. Email routing active. CDN configured.

✅

Website & Whitepaper DONE

Website live on Cloudflare Pages. Whitepaper version 1.0 published with the protocol design, implementation status, and path to launch.

⬜

Genesis Block & Seed Servers SOON

Mine the genesis block (no pre-mine). Deploy 3 seed servers on Hetzner VPS. Hardcode block hash in protocol.

⬜

Testnet Launch SOON

Public testnet with faucet. Community testing, security audit of crypto layer.

⬜

Mainnet Launch

Mainnet genesis. Bitcoin mining pool outreach for merge-mining. CoinGecko / CMC listing. Exchange listings.