About

Why QRDX exists

Public blockchains are secured by signatures a large quantum computer could forge. Migrating a live chain later is slow and contentious. QRDX starts post-quantum.

Read the whitepaper Source on GitHub

The problem

Bitcoin and Ethereum accounts are protected by elliptic-curve signatures. Shor's algorithm, run on a large fault-tolerant quantum computer, would derive a private key from its public key, and every account that has ever published its public key would be open to theft. No such computer exists today, but keys and ledgers last for decades, and a chain cannot change its signatures overnight.

QRDX signs with ML-DSA-65, the lattice-based signature NIST standardised in FIPS 204. Validators can only use it, and every account has a post-quantum key from its first day.

We also built the exchange into the protocol. Order books, pools and perpetuals are state every node computes, rather than contracts and off-chain services glued to a chain, so there are fewer seams to attack.

How we build

Standards, not inventions

NIST FIPS 204 signatures, verified against liboqs, and widely reviewed libraries in the wallet. We do not roll our own cryptography.

Conservation first

The exchange is tested for invariants: supply always equals the sum of balances, perps are zero-sum, every operation is all-or-nothing, and every node rebuilds the same state.

Say what is real

Live means live on testnet; planned means planned. Market data comes from the chain, and outside prices are labelled as reference.

Compatible where it counts

Post-quantum accounts map to 20-byte ids, so Ethereum tools, contracts and wallets keep working.

Open source

The node, wallet, trading site, explorer and docs are public on GitHub.

Testnet before mainnet

Mainnet follows security audits. Until then everything runs on testnet, where tokens have no value.

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