01 Core parameters
- base
- Bitcoin Core v29.4
- algorithm
- SHA-256
- hardware
- ASIC
- total supply
- ≈210.4M
- target
- 30 seconds
- per day
- 2,880
- per year
- 1,051,200
- initial reward
- 200 SPMTC
- pre-launch
- 8% · 16.8M
- accelerated
- 6 months
- 525,600 blocks
- longevity
- 12 months
02 Halving schedule
The block reward halves every six months for the first five years, then every twelve months thereafter. The accelerated phase establishes scarcity early; the longevity phase spreads the remaining supply across decades.
- Pre-launch · transparent acquisition
- 0 – 0.08 yr 200.0
- Accelerated phase · halving every 6 months
- 0.08 – 0.5 yr 200.0
- 0.5 – 1.0 yr 100.0
- 1.0 – 1.5 yr 50.0
- 1.5 – 2.0 yr 25.0
- 2.0 – 2.5 yr 12.5
- 2.5 – 3.0 yr 6.25
- 3.0 – 3.5 yr 3.125
- 3.5 – 4.0 yr 1.5625
- 4.0 – 4.5 yr 0.78125
- 4.5 – 5.0 yr 0.390625
- Longevity phase · halving every 12 months
- 5.0 yr onward 0.1953125
Bar length is logarithmic, so each equal step is one halving. Rewards are exact binary fractions of 200. The subsidy reaches zero at block 31,536,000, about thirty years after genesis; every block before it together issues 210,445,312.38436800 SPMTC.
03 How to read the schedule
Why 30-second blocks
At a 30-second target the network produces 2,880 blocks a day against Bitcoin's 144 — twenty times as many. Confirmations arrive faster, and solo miners find blocks often enough for variance to be tolerable at small hash rates.
Why halve so quickly
The reward falls from 200 to roughly 0.39 SPMTC within five years. Most of the supply is issued early, so the chain reaches its scarce state while it is still small rather than inflating through its first decade.
Why switch to annual
Continuing six-month halvings would drive the reward to dust within a decade. Moving to a twelve-month cadence at year five stretches the remaining issuance across generations, keeping a subsidy in place long after launch.
What you can check
Every figure here is derivable from two numbers: a 30-second block target and a 200 SPMTC starting reward. Block height times reward, against the published acquisition range, is the whole audit.
04 Pre-launch acquisition
Before public launch the core team mines about 8% of total supply — 16,800,000 SPMTC — by solo mining at the ordinary block reward. No coins are created outside the normal issuance schedule.
| Quantity | Value | Derivation |
|---|---|---|
| Share of supply | 7.98% | of 210,445,312.38 |
| Coins | 16,800,000 | fixed amount |
| Reward rate | 200 SPMTC | initial block reward |
| Blocks required | 84,000 | 16,800,000 ÷ 200 |
| Elapsed time | ~29 days | 84,000 × 30 s |