PQC Chain is a research and testnet project developing post-quantum trust infrastructure for accountable autonomous systems. Its proposed blockchain combines quantum-resistant security, deterministic settlement, and verifiable AI accountability, with the goal of making material actions traceable, governable, and open to challenge.

The platform is designed to establish identity, authority, and finality while supporting AI agents and robots through explicit identities, scoped capabilities, risk controls, budgets, provenance, and revocable permissions. Its architecture uses post-quantum cryptographic methods, including ML-DSA signatures, and describes a planned hybrid ML-KEM transport path. Deterministic state transitions, BFT finality, cryptographic commitments, receipts, and proofs are intended to make outcomes replayable and auditable.

PQC Chain keeps AI inference, private prompts, large datasets, and real-time control off-chain; the ledger records commitments needed to authorize actions and settle results. The project provides research and development materials, a whitepaper, economic information, a roadmap, and team details. Its security claims remain subject to independent audits and production-readiness evidence, and the project states that it is not production infrastructure.