Emission model · verified against the runtime source · Sept 30, 2026
Every block mints a shrinking reward
Quantus has no halvings and no dev tax. Each block pays the miner (21,000,000 − current supply) / 50,000,000 — a smooth exponential decay straight out of the runtime. This lab inverts the formula live from indexer rewards, then projects the full 21M supply curve: when rewards cross 0.10 QTC, when daily issuance drops under 100 QTC, and what the tail looks like eighty years out.
The formula
Read straight from pallet_mining_rewards — not from a whitepaper summary.
Closed form from block n: S(n) = 21M − R₀·(1 − 1/50M)ⁿ. The reward halves every ln(½)/ln(1 − 1/50M) ≈ 34.66M blocks — the exponential analogue of a halving, with no cliffs.
- Emission divisor 50,000,000 — hardcoded in
runtime/src/configs/mod.rs(verified chain source). - 100% to the miner. No dev tax, no treasury cut of block rewards — each block's reward and standard fees go entirely to the block author.
- Quantized to 0.01 QTC (the wormhole leaf quantum) before minting — hence the alternating pulse you see below.
- Burned fees bend the curve up. The 1% high-security volume fee and wormhole-exit burns destroy issuance, which raises remaining supply and slightly lifts future rewards vs. the pure model.
- Smooth decay, no halvings. Supply approaches 21M asymptotically; it never "completes" at a fixed date.
The reward pulse live
Recent indexer-reported block rewards. The dashed line is the model's true value — the bars snap to 0.30 / 0.31 because of leaf-quantum quantization.
Decay simulator model
Drag through time. Every figure is computed from the closed-form decay anchored on live rewards.
Milestone timeline model
When the decay crosses the markers miners actually care about.
| Milestone | Projected date | Blocks away | Reward then |
|---|
Eighty years of supply model
The supply curve S(n) = 21M − R₀·(1 − 1/50M)ⁿ. Log scale shows the long tail; linear scale shows how fast the early years move.
Why no halvings?
Bitcoin-style halvings cut the reward in a cliff every four years. Quantus decays continuously — the same halving time (~16 years at current block time) but no shock dates for miners to front-run. The purple curve is a hypothetical halving schedule drawn only for comparison.
Sources
Every number above traces to one of these. Re-verified Sept 30, 2026.
- verifiedQuantus-Network/chain — runtime/src/configs/mod.rs:
EmissionDivisor = ConstU128<50_000_000>. - verifiedpallet_mining_rewards: reward = remaining supply / divisor, quantized to the leaf quantum, 100% to the miner; burned fees excluded from issuance.
- verifiedQuantus-Network/docs — tokenomics.md: 21M cap, 27% genesis mint (5.67M), 73% mining emissions (15.33M), smooth exponential decay, no halvings.
- livePublic Subsquid indexer (
sqm.quantus.com) via the repo's same-origin snapshotdata/live.json— block rewards, heights, and timestamps the model anchors on. - modelAll projections are the closed-form decay above. They ignore future fee burns, block-time drift, and governance changes — treat dates as model outputs, not promises.