Independent comparison · figures cited & dated · updated Sept 29, 2026

Where does Quantus actually stand?

A new post-quantum chain is only as good as its trade-offs. This lab puts QTC head-to-head with Bitcoin, Ethereum, Solana and Ergo across the metrics that matter — consensus, quantum safety, throughput math, fees, supply, and launch fairness. Every cell carries a source and an evidence badge; nothing here is vibes.

Chains compared5

Metrics12

Figures cited—

VerifiedSept 29, 2026

The head-to-head matrix

Click a chain above to spotlight its column. Badges: measured observed on-chain or in spec, claimed project's own figure, approx third-party estimate, unverified could not confirm.

Throughput anatomy

TPS is arithmetic, not magic: block size ÷ block time ÷ average tx size. Drag the average tx size and watch each chain's theoretical ceiling move.

Average transaction size 250 B

Byte math applies to BTC and QTC (byte-metered blocks). Ethereum, Solana and Ergo are gas/compute-metered, so their bars show researched typical throughput as a labeled reference instead of slider math. This is a ceiling — real throughput also depends on validation cost, networking, and demand.

Why Quantus quotes ~430 TPS with 7 KB transactions

ML-DSA signatures are big — a raw Quantus transfer is on the order of 7 KB. The chain's answer is native transaction aggregation: many transfers are batched into one aggregated envelope so the per-transfer on-chain cost collapses. The ~430 TPS figure is the project's claimed design target for aggregated throughput, not a measured mainnet number — mainnet went live Sept 9, 2026 and real load is far below it (see the Network Dashboard). Aggregation is the honest version of the trick every high-TPS chain uses; the lab above shows what happens to the math without it.

The signature showdown

Post-quantum security has a price: size. Classical signatures are tiny; NIST-standard ML-DSA signatures are kilobytes. That single fact explains most of Quantus's design.

ECDSA / Ed25519 — 64-byte signatures. Elegant, battle-tested, and breakable by a sufficiently large quantum computer running Shor's algorithm.

ML-DSA-65 / ML-DSA-87 — NIST FIPS 204 standards (2024). Signature sizes are measured from the standard itself. Quantus signs with ML-DSA from the genesis block; no migration cliff, no "harvest now, decrypt later" exposure on its own ledger.

Launch fairness, side by side

Who got coins at the start, and on what terms? The one dimension marketing never wants you to compare.

Scorecards

One honest paragraph per chain — what it's genuinely best at, and the catch. Independent builder's view, not financial advice.

Sources

Every figure above traces to one of these. Re-verified Sept 29, 2026; figures move — check the live chain before acting on them.