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KAS/USDMARKET CAPHASHRATEBLOCK RATE10 /secBLOCK TIME100 msBLOCK REWARDCIRCULATINGMEMPOOLCONSENSUSGHOSTDAGNODEPREMINENONESUPPLY CAP28.70 B KAS
KAS/USDMARKET CAPHASHRATEBLOCK RATE10 /secBLOCK TIME100 msBLOCK REWARDCIRCULATINGMEMPOOLCONSENSUSGHOSTDAGNODEPREMINENONESUPPLY CAP28.70 B KAS
Chapter 03 — monetary policy

A halving
with no
halving day

Kaspa's supply schedule is the most unusual thing about it after the consensus. Instead of cutting the block reward in half every four years, it multiplies the reward by 2^(-1/12) every Kaspa month — the exact frequency ratio between two adjacent semitones. Twelve of those steps compound to precisely one half, so the network halves annually and no miner ever loses half their revenue overnight.

At a glance
Supply cap28,704,035,605 KAS
Smallest unit1 sompi = 1e-8 KAS
PremineNone
Monthly step×2^(-1/12) = −5.61%
Annual step÷2 exactly
Chromatic phase fromMay 2022
Opening rate440 KAS / sec
Circulating supply
KAS
Current block reward
KAS
Kaspa month
Market cap
price via the community API
Next monthly reduction
--d --:--:--
Month
Reward drops to
Issuance drops to
Date
Next full octave (annual halving)
--d --:--:--
Octave
Reward at that point
Issuance
Date
Share of the supply cap already issued0.00%ISSUED
Share of the 28.7B KAS cap already mined. Annual halvings front-load issuance heavily compared with a four-year cycle.
The whole schedule

Fourteen years
in one instrument

§ 01 — drag across the chart

Cumulative supply against the left axis, issuance rate against a logarithmic right axis — logarithmic because the first year would otherwise flatten everything after it into a single line. The vertical gridlines are octaves; each one is an exact halving of the rate.

Chromatic emission · month 0 = May 2022
cumulative supplyKAS/sec issued (log)
oct 0123456789101112131425%50%75%100%440444.40.44
Kaspa month
Date
Issuance
Supply issued
Why it is called chromatic

The schedule is
literally a scale

§ 02 — twelve-tone equal temperament

In twelve-tone equal temperament, moving up one semitone multiplies frequency by 2^(1/12), and twelve semitones make an octave — a doubling. Kaspa's emission runs the same ratio downwards. The opening rate of 440 KAS per second is the frequency of A4, the note orchestras tune to.

One octave, semitone by semitone
0
2022-05-05
440.0000
44.00000000
1
2022-06-05
415.3047
41.53046976
2
2022-07-05
391.9954
39.19954360
3
2022-08-05
369.9944
36.99944227
4
2022-09-04
349.2282
34.92282314
5
2022-10-05
329.6276
32.96275569
6
2022-11-04
311.1270
31.11269837
7
2022-12-05
293.6648
29.36647679
8
2023-01-04
277.1826
27.71826310
9
2023-02-03
261.6256
26.16255653
10
2023-03-06
246.9417
24.69416506
11
2023-04-05
233.0819
23.30818808
Twelve steps of −5.6126% each. Multiply them together and you get exactly 0.5 — the octave completes, and octave 1 opens at half the rate of octave 0.
The step, drawn
1.0×0.5×

Thirteen bars: the opening rate, eleven intermediate semitones, and the teal bar where the octave closes at exactly half. No cliff anywhere on the curve.

Constants
Seconds per Kaspa month2,629,800
Opening rate440 KAS/s
Monthly multiplier2^(-1/12) ≈ 0.943874
Blocks per second10
Hard cap28,704,035,605
Series limit28.7B KAS
Against the field

Smooth versus cliff

§ 03 — cadence and mechanism

Halving cliffs create a predictable shock: miner revenue drops by half on a known date, marginal operations shut down, and hashrate dips until difficulty catches up. Kaspa spreads the same annual reduction across twelve small steps, which is a genuine engineering improvement — and it does not change the underlying economics of a declining subsidy.

Kaspa
Every 12 months
Smooth: ×2^(-1/12) monthly
Bitcoin
Every ~4 years
Cliff: ÷2 at 210,000 blocks
Litecoin
Every ~4 years
Cliff: ÷2 at 840,000 blocks
Monero
No halving
Tail emission, 0.6 XMR/block

The part that is not settled

Front-loaded issuance is usually presented as a virtue, and it does have real advantages: distribution happened early, through mining, with no allocation to insiders. But it has a corollary that enthusiasm tends to skip. If the block subsidy halves every year, the security budget shrinks every year — and something has to replace it.

That something is transaction fees. Every proof-of-work network eventually depends on them; Kaspa arrives at the dependency considerably sooner than a four-year-halving network does. Whether fee revenue grows fast enough to matter depends on real sustained usage, which is an empirical question about adoption rather than a question about protocol design. Nobody knows the answer, and any account presenting one as settled is selling something.

Two related notes on precision. The sompi is the smallest unit, 10-8 KAS, which is where the eight decimal places on the reward figures come from. And storage mass (KIP-9) means transaction cost is not purely about byte size — a transaction that fragments the UTXO set into many small outputs costs more, which is a deliberate defence against state bloat at ten blocks per second.

What no chart on this site will show you

There is no price prediction here, and no price history chart. The Kaspa API this site reads does not publish historical prices, and inventing a series to fill a panel would undermine everything else on the page. The live spot price appears where it is genuinely informative — a market cap, a mining breakeven — and nowhere else.

Modelled versus measured
Policy model, right now
Network reports
Divergence
Chapter 03 — monetary policy

A halving
with no
halving day

Kaspa's supply schedule is the most unusual thing about it after the consensus. Instead of cutting the block reward in half every four years, it multiplies the reward by 2^(-1/12) every Kaspa month — the exact frequency ratio between two adjacent semitones. Twelve of those steps compound to precisely one half, so the network halves annually and no miner ever loses half their revenue overnight.

At a glance
Supply cap28,704,035,605 KAS
Smallest unit1 sompi = 1e-8 KAS
PremineNone
Monthly step×2^(-1/12) = −5.61%
Annual step÷2 exactly
Chromatic phase fromMay 2022
Opening rate440 KAS / sec
Circulating supply
KAS
Current block reward
KAS
Kaspa month
Market cap
price via the community API
Next monthly reduction
--d --:--:--
Month
Reward drops to
Issuance drops to
Date
Next full octave (annual halving)
--d --:--:--
Octave
Reward at that point
Issuance
Date
Share of the supply cap already issued0.00%ISSUED
Share of the 28.7B KAS cap already mined. Annual halvings front-load issuance heavily compared with a four-year cycle.
The whole schedule

Fourteen years
in one instrument

§ 01 — drag across the chart

Cumulative supply against the left axis, issuance rate against a logarithmic right axis — logarithmic because the first year would otherwise flatten everything after it into a single line. The vertical gridlines are octaves; each one is an exact halving of the rate.

Chromatic emission · month 0 = May 2022
cumulative supplyKAS/sec issued (log)
oct 0123456789101112131425%50%75%100%440444.40.44
Kaspa month
Date
Issuance
Supply issued
Why it is called chromatic

The schedule is
literally a scale

§ 02 — twelve-tone equal temperament

In twelve-tone equal temperament, moving up one semitone multiplies frequency by 2^(1/12), and twelve semitones make an octave — a doubling. Kaspa's emission runs the same ratio downwards. The opening rate of 440 KAS per second is the frequency of A4, the note orchestras tune to.

One octave, semitone by semitone
0
2022-05-05
440.0000
44.00000000
1
2022-06-05
415.3047
41.53046976
2
2022-07-05
391.9954
39.19954360
3
2022-08-05
369.9944
36.99944227
4
2022-09-04
349.2282
34.92282314
5
2022-10-05
329.6276
32.96275569
6
2022-11-04
311.1270
31.11269837
7
2022-12-05
293.6648
29.36647679
8
2023-01-04
277.1826
27.71826310
9
2023-02-03
261.6256
26.16255653
10
2023-03-06
246.9417
24.69416506
11
2023-04-05
233.0819
23.30818808
Twelve steps of −5.6126% each. Multiply them together and you get exactly 0.5 — the octave completes, and octave 1 opens at half the rate of octave 0.
The step, drawn
1.0×0.5×

Thirteen bars: the opening rate, eleven intermediate semitones, and the teal bar where the octave closes at exactly half. No cliff anywhere on the curve.

Constants
Seconds per Kaspa month2,629,800
Opening rate440 KAS/s
Monthly multiplier2^(-1/12) ≈ 0.943874
Blocks per second10
Hard cap28,704,035,605
Series limit28.7B KAS
Against the field

Smooth versus cliff

§ 03 — cadence and mechanism

Halving cliffs create a predictable shock: miner revenue drops by half on a known date, marginal operations shut down, and hashrate dips until difficulty catches up. Kaspa spreads the same annual reduction across twelve small steps, which is a genuine engineering improvement — and it does not change the underlying economics of a declining subsidy.

Kaspa
Every 12 months
Smooth: ×2^(-1/12) monthly
Bitcoin
Every ~4 years
Cliff: ÷2 at 210,000 blocks
Litecoin
Every ~4 years
Cliff: ÷2 at 840,000 blocks
Monero
No halving
Tail emission, 0.6 XMR/block

The part that is not settled

Front-loaded issuance is usually presented as a virtue, and it does have real advantages: distribution happened early, through mining, with no allocation to insiders. But it has a corollary that enthusiasm tends to skip. If the block subsidy halves every year, the security budget shrinks every year — and something has to replace it.

That something is transaction fees. Every proof-of-work network eventually depends on them; Kaspa arrives at the dependency considerably sooner than a four-year-halving network does. Whether fee revenue grows fast enough to matter depends on real sustained usage, which is an empirical question about adoption rather than a question about protocol design. Nobody knows the answer, and any account presenting one as settled is selling something.

Two related notes on precision. The sompi is the smallest unit, 10-8 KAS, which is where the eight decimal places on the reward figures come from. And storage mass (KIP-9) means transaction cost is not purely about byte size — a transaction that fragments the UTXO set into many small outputs costs more, which is a deliberate defence against state bloat at ten blocks per second.

What no chart on this site will show you

There is no price prediction here, and no price history chart. The Kaspa API this site reads does not publish historical prices, and inventing a series to fill a panel would undermine everything else on the page. The live spot price appears where it is genuinely informative — a market cap, a mining breakeven — and nowhere else.

Modelled versus measured
Policy model, right now
Network reports
Divergence