Quantus Launches Quantum‑Safe Proof‑of‑Work Mainnet

Quantus unveiled its proof‑of‑work (PoW) mainnet on September 9, 2026, embedding post‑quantum cryptography (PQC) into the protocol from the outset. The network aims to address what it estimates as a $2.7 trillion security exposure across the crypto market stemming from the potential future capabilities of quantum computers.

Quantum‑Resistant Design

The core of Quantus’s security model relies on the ML‑DSA digital‑signature scheme, specifically the ML‑DSA‑65 and ML‑DSA‑87 variants finalized by the U.S. National Institute of Standards and Technology (NIST) in 2024. These algorithms are intended to remain secure even against attacks from sufficiently powerful quantum processors.

Network Architecture and Performance

Quantus targets 12‑second block intervals and reports testing that achieved up to 430 transactions per second (TPS). To mitigate the larger size of PQC signatures—approximately 7 KB per transaction versus roughly 100 bytes for typical Bitcoin transactions—the protocol aggregates activity on layer‑one and posts succinct proofs on‑chain.

Supply and Mining

The native token, QTC, has a fixed supply cap of 21 million coins and is distributed through open PoW mining without any built‑in advantage for the founding team.

Industry Context

While other blockchains such as NEAR and Algorand have introduced PQC‑enabled transaction security, they have not completed a full protocol‑wide migration. Quantus positions itself as a network that incorporates quantum defense from day one, aiming to avoid a later migration challenge.

External Audits and Security Review

Prior to launch, the network was reviewed by security firms Neodyme, Eiger, Hashcloak, and V12, and a public audit competition was hosted by Immunefi.

Broader Threat Landscape

Recent advances in AI‑driven cryptographic research, such as Anthropic’s Claude Mythos Preview improving attacks on the post‑quantum signature candidate HAWK, illustrate accelerating capabilities to test and potentially weaken cryptographic schemes. Quantus cites this trend as part of the rationale for early adoption of quantum‑resistant technology.